S3PM-2017 :: International Convention on

Shape, Solid, Structure, & Physical Modeling

Design, Modeling, Representation, Processing, Analysis, and Visualization of Shapes, Solids, Structures, Materials, Properties, and Behaviors.

For Five Days,
discuss the research frontiers of Shape, Solid, Structure, & Physical Modeling (S3PM).

S3PM primarily focuses on the mathematical & algorithmic principles, as well as practical tools, for the design, modeling, representation, processing, analysis, and visualization of shapes, solids, structures, materials, properties, and behaviors.

S3PM-2017 will combine the two prime conferences in this area: (1) the Symposium on Solid and Physical Modeling (SPM); and (2) the Shape Modeling International (SMI) Symposium. It will also Include the Fabrication and Sculpting Event (FASE), the Pierre Bézier Award Ceremony held by the Solid Modeling Association (SMA), keynote speakers of international reputation, industry panels, and several mini-symposia on important cutting-edge topics and research directions.

Design

Modeling

Representation

Processing

Analysis

Visualization

Shape

Solid

Structure

Material

Properties

Behavior

S3PM Symposia

Two consecutive co-located symposia

Solid and Physical Modeling (SPM-2017)

Symposium: June 19th to 21st, 2017

The ACM Symposium on "Solid Modeling and Applications (SMA)," SPM has been the primary venue for disseminating research results in the design, representation, analysis, visualization, and use of digital models of real or planned solid objects and of their bounding surfaces. Its initial focus was on the theoretical and algorithmic tools that produce and exploit unambiguous representations of the geometry of such objects. Its broadening to "Solid and Physical Modeling (SPM)" extended the focus from solids to also include models of their internal structures, physical properties, and behaviors.

Deadlines: February 18th (abstract), March 3rd (full papers), 2017

CLICK for more info & submission guidelines

Shape Modeling International (SMI-2017)

Symposium: June 21st to 23rd, 2017

The "Shape Modeling International (SMI)" Symposium is the premier international forum for the dissemination of new mathematical theories and novel computational techniques for modeling, simulating, and processing digital shape representations. SMI gathers a wide community of researchers, developers, practitioners, and students in academia and industry. Conference proceedings will be published in a special issue of the Computer & Graphics Journal after a rigorous two-stage review process.

Deadlines: March 28th (abstract), April 3rd (full papers), 2017

CLICK for more info & submission guidelines

Additional Events

Fabrication and Sculpting Event (FASE)

Event: June 21st to 23rd, 2017

The "Fabrication and Sculpting Event (FASE)" presents original research at the intersection of theory and practice in shape modeling, fabrication and sculpting. FASE focuses on the practical problems of generating shapes and specifically addresses the interplay of theory and practice. FASE invites practitioners who have inspiring ideas to contribute their work concerned with techniques to design, sculpt and fabricate shapes. The work is expected to have clear algorithmic or mathematical aspects.

Deadline: May 15th (full papers), 2017

CLICK for more info & submission guidelines

S3PM :: Replicability Stamp:

S3PM participates in the Replicability Stamp Initiative, an additional recognition for authors who are willing to go one step further, and in addition to publishing the paper, provide a complete open-source implementation. The Graphics Replicability Stamp Initiative (GRSI) is an independent group of volunteers who want to help the community by enabling sharing of code and data as a community resource for non-commercial use. The volunteers review the submitted code and certify its replicability, awarding a replicability stamp, which is an additional recognition for authors of accepted papers who are willing to provide a complete implementation of their algorithm, to replicate the results presented in their paper. The replicability stamp is not meant to be a measure of the scientific quality of the paper or of the usefulness of presented algorithms. Rather, it is meant to be an endorsement of the replicability of the results presented in it!

The paper and the recognition of the service provided to the community by releasing the code. Submissions for the replicability stamp will be considered only after the paper has been fully accepted. Submissions that are awarded the replicability stamp will receive additional exposure by being listed on this website. The purpose of this stamp is to promote reproducibility of research results and to allow scientists and practitioners to immediately benefit from state-of-the-art research results, without spending months re-implementing the proposed algorithms and trying to find the right parameter values. We also hope that it will indirectly foster scientific progress, since it will allow researchers to reliably compare with and to build upon existing techniques, knowing that they are using exactly the same implementation. This is an initiative supported by a growing list of publishers, journals, and conferences.

The submission procedure is lightweight (click here to see requirements) and we encourage the authors of accepted papers to participate by filling the form that they received in the acceptance letter. The papers with the replicability stamp will receive additional exposure during S3PM, and will be listed on the replicability stamp website.

The deadline for applying is May 26th, 2017 at 23:59 CET. For any request or comment regarding the replicability stamp, please contact directly the paper chairs of the corresponding conference.

S3PM :: Call for Mini-Symposia:

The Chairs of the Convention are inviting proposals for a small number of Mini-Symposia focused on emerging topics of high impact on the research and industrial communities.

We are inviting you to consider submitting a proposal and chairing it, if accepted. A mini-symposium will include 3 presentations (20 mins each) by the Chair and 2 invited speakers, or a brief introduction by the Chair and presentations by 3 invited speakers, followed by a panel and Q&A discussion.

The proposal should be submitted before April 15th, 2017 to s3pm@icsi.berkeley.edu. Feel free to contact us using the same e-mail address for any questions.

Each proposal should include: (1) title of the mini-symposium,(2) name, affiliation, and homepage link of the Chair, (3) list of speakers’ names with their affiliations and homepage links, and (4) brief outline and motivation for the importance of the topic.

For each presentation, the proposal should include: (1) title of the presentation, (2) speaker’s name, (3) short abstract (about 200 words), and (4) link to the most relevant paper.

Bézier Award 2017 :: Call for Nominations:

Sponsored by the Solid Modeling Association (SMA) and the Symposium on Solid and Physical Modeling (SPM).

With the approval of the family of the late Pierre Bézier, the Solid Modeling Association established in 2007 the Pierre Bézier Award for contributions in Solid, Geometric and Physical Modeling and for their Applications. Pierre Bézier was one of the founders of these fields. Beginning with his work on representing curves, and continuing through his work on one of the first CAD/CAM systems at Renault (UNISURF), Pierre Bézier led the transformation of design and manufacturing, through mathematics and computing tools, into computer aided design and three dimensional modeling. He made contributions to computer control, interactive free-form curve and surface design and 3D milling for manufacturing clay models and masters. Bézier's approach to research exemplifies how the problems from the real world can drive scientific inquiry and lead to engineering accomplishments.

Solid, geometric and physical modeling have matured and have come a long way since the 1950s, resulting in a rich set of theories, mathematics and algorithms that define and manipulate representations of physical objects, their properties, and their associated abstractions. These representations are intimately tied to processes (such as simulation, design, manufacturing, and analysis) and application domains (automotive, aerospace, bio-medical, graphic arts, etc). These representations support the creation, exchange, simulation, visualization, animation, interrogation, and annotation of the digital models of the objects and their evolution.

CLICK HERE to see previous recepients of the Bézier Award, nomination process and timeline, and other details.

The Pierre Bézier Award and the acceptance lecture will be presented at the SPM-2017 Symposium on June 21st, 2017.

Keynote Speakers

World-renowned scientists and engineers

Digital Human Teleportation using Deep Learning

Time and Location: TBA

The age of immersive technologies will create a growing need for processing detailed visual representations of ourselves as virtual reality (VR) is growing into the next generation platform for online communication. A realistic simulation of our presence in such virtual world is unthinkable without a compelling and directable 3D digitization of ourselves. With the wide availability of mobile cameras and the emergence of low-cost VR head mounted displays (HMD), my research goal is to build a comprehensive and deployable teleportation framework for realistic 3D face-to-face communication in cyberspace. By pushing the boundaries in data-driven human digitization as well as bridging concepts in computer graphics and deep learning research, I will showcase several highlights of our current research, from photorealistic avatar creation from a single image, facial performance-sensing head mounted displays, and full-body dynamic shape capture. I will also introduce new deep learning tools for processing clothed 3D human bodies, inferring photorealistic 3D faces from unconstrained low resolution images, as well as demonstrate the latest highlights from Pinscreen.


Hao Li

CEO/Co-Founder of Pinscreen
Professor of Computer Science at University of Southern California

Hao Li is CEO/Co-Founder of Pinscreen, Assistant Professor of Computer Science at the University of Southern California, and the Director of the Vision and Graphics Lab at the USC Institute for Creative Technologies. Hao's work in Computer Graphics and Computer Vision focusses on digitizing humans and capturing their performances for immersive communication and telepresence in virtual worlds. His research involves the development of novel geometry processing, data-driven, and deep learning algorithms. He is known for his seminal work in non-rigid shape alignment, real-time facial performance capture, hair digitization, and dynamic full body capture. He was previously a visiting professor at Weta Digital, a research lead at Industrial Light & Magic / Lucasfilm, and a postdoctoral fellow at Columbia and Princeton Universities. He was named top 35 innovator under 35 by MIT Technology Review in 2013 and was also awarded the Google Faculty Award, the Okawa Foundation Research Grant, as well as the Andrew and Erna Viterbi Early Career Chair. He obtained his PhD at ETH Zurich and his MSc at the University of Karlsruhe (TH).

Driving 3D and 4D Printing Forward with Computational Design

Time and Location: TBA

The recent rise in digital fabrication, including 3D and 4D printing, may be the best thing that has ever happened to the area of computational design. For years we have been developing algorithms and methods for automatically generating and optimizing designs from large, complex solution spaces. Today, designers struggle with just this, to design parts that take full advantage of the complex shapes and material combinations that are now possible with 3D printing. 4D printing extends on this to enable designs to reconfigure themselves in time after printing. This is a new and exciting playground for computational design. Highlights of our research on novel methods for automatically generating, simulating, and optimizing structural and mechanical systems that can be directly fabricated with 3D printing are presented. The focus is on a multi-material polymer-based process that has also enabled the development of tunable, multi-stable, reconfigurable 4D printed structures.


Kristina Shea

Professor of Engineering Design and Computing at ETH Zürich

Kristina Shea is Professor for Engineering Design and Computing in Mechanical and Processing Engineering at ETH Zürich since 2012. Her research focuses on developing cutting-edge computational models, methods and tools that enable the design of more novel and optimized engineered systems and products as well as to automate design and fabrication processes. Currently her research group focuses on new computational design methods for 3D and 4D printing as well as computational design synthesis. She graduated in Mechanical Engineering (BS 1993; MS 1995; PhD 1997) from Carnegie Mellon University (US). She has held academic positions at EPFL (Lausanne, Switzerland), University of Cambridge (UK) and TU München (Germany) and worked as a Senior Engineer at Arup (London, UK). She is a Fellow of the American Society of Mechanical Engineers (ASME).

Restricted Constrained Delaunay Triangulations

Time and Location: TBA

Surface meshes are used extensively in computer graphics, boundary element methods, and many other applications. Researchers have sought surface triangulations that have formal mathematical properties similar to those enjoyed by Delaunay triangulations in the plane. They succeeded by inventing the "restricted Delaunay triangulation," which is a subcomplex of the three-dimensional Delaunay triangulation. In other words, given a smooth surface embedded in three-dimensional space, we compute a set of points lying on the surface, we compute the 3D Delaunay triangulation of those points, and we select a subset of its triangles to serve as a triangulation of the surface. This subset of triangles, the restricted Delaunay triangulation, has proven itself as a mathematically powerful tool for surface meshing and surface reconstruction.
I address a question of Bruno Levy: can we constrain restricted Delaunay triangulations to include specified edges? That is, can we define a mathematically well-behaved, Delaunay-like, edge-constrained triangulation on a smooth surface? We do so by defining a specialized Voronoi diagram on the surface, then dualizing it to obtain a triangulation. But to force specified edges to appear in this triangulation, we must perform topological surgery on the surface...and that's where things get weird and interesting.
(This work is done jointly with Marc Khoury and Marc van Kreveld.)


Jonathan R. Shewchuk

Professor of Computer Science at University of California, Berkeley

Jonathan Shewchuk is a Professor in the Department of Electrical Engineering and Computer Sciences at UC Berkeley. He is best known for his software Triangle for high-quality triangular mesh generation, which won the 2003 James Hardy Wilkinson Prize in Numerical Software, and his "Introduction to the Conjugate Gradient Method Without the Agonizing Pain." His book "Delaunay Mesh Generation," written jointly with Siu-Wing Cheng and Tamal Dey, is available from CRC Press.

Computation of Frame Fields Using Ginzburg-Landau Functional: Application to Quad and Hex Meshing

Time and Location: TBA

This presentation essentially deals with indirect (quad-) hex-dominant. Several topics will be covered:
  • Frame fields are an essential tool for constructing such meshes. We propose here a formulation that is based on Gizburg-Landau functional.
  • Hex-dominant meshing relies on the detection of adjacent tetrahedra that may be combined to form hexahedra. In this presentation, we introduce a new algorithm that performs this identification and build the largest set of potential hexes from an input tetrahedral mesh.
  • Parallelization of the whole mesh generation process on a Knigh’s Landing architecture is also presented.


Jean-François Remacle

Full Professor at Université catholique de Louvain

After his Engineering Degree at the University of Liège in Belgium in 1992, Jean-François Remacle obtained in 1997 a Ph.D. from the same University. He then spent two years at the Ecole Polytechnique de Montréal as a post-doctoral fellow of Prof. F. Trochu, followed by three years at Rensselaer Polytechnic Institute in the research team of Prof. M. Shephard.
It was during his stay at Rensselaer that Pr. Remacle started to work closely with Mark Shephard on mesh generation. Pr. Shephard’s seminal work on mesh generation is one of the most important contributions ever. It was also during that stay that Pr. Remacle started the development of Gmsh, the open source mesh generator.
After these five years in Northern America, Jean-François Remacle joined the Université catholique de Louvain in 2002 as an assistant Professor. He then became Associate Professor in 2005 and Full Professor in 2012. In the following years of his return to Europe, Pr. Remacle dedicated a large part of his research to mesh generation.

Preliminary Program

THIS IS NOT THE FINAL PROGRAM. EXACT TIMES/DETAILS WILL BE ADJUSTED.

08:45 - 09:30

S3PM   Opening & Introductions

09:30 - 10:45

SPM A   Paper Presentations

Shape Analysis and Representation - Part I

A-1   "Detecting the Intersection of Two Convex Shapes by Searching on the 2-Sphere"
        -Samuel Hornus

Presentation Time: 09:30 - 09:55


A-2   "Over-Constraints Detection and Resolution in Geometric Equation Systems"
        -Hao Hu, Mathias Kleiner, and Jean-Philippe Pernot

Presentation Time: 09:55 - 10:20


A-3   "Rasterized Planar Face Complex"
        -Guillaume Damiand and Jarek Rossignac

Presentation Time: 10:20 - 10:45


10:45 - 11:15

Coffee Break

11:15 - 12:30

SPM B   Paper Presentations

Shape Analysis and Representation - Part II

B-1   "Robust Free Space Construction for a Polyhedron with Planar Motion"
        -Elisha Sacks, Nabeel Butt, and Victor Milenkovic

Presentation Time: 11:15 - 11:40


B-2   "A General Framework for 3D Model Co-alignment"
        -Xuanmeng Xie, Shan Luo, and Jieqing Feng

Presentation Time: 11:40 - 12:05


B-3   "Diffusion-based Non-uniform Regularization for Variational Shape Deformation"
        (Invited CAD paper)
        -Lifeng Zhu, Wei Li, Xiaorui Zhang, and Aiguo Song

Presentation Time: 12:05 - 12:30


12:30 - 14:00

Lunch Break

14:00 - 15:00

SPM ✦   Keynote Lecture (1)

Jean-François Remacle
Computation of Frame Fields Using Ginzburg-Landau Functional:
Application to Quad and Hex Meshing

This presentation essentially deals with indirect (quad-) hex-dominant. Several topics will be covered: -Frame fields are an essential tool for constructing such meshes. We propose here a formulation that is based on Gizburg-Landau functional. -Hex-dominant meshing relies on the detection of adjacent tetrahedra that may be combined to form hexahedra. In this presentation, we introduce a new algorithm that performs this identification and build the largest set of potential hexes from an input tetrahedral mesh. -Parallelization of the whole mesh generation process on a Knigh’s Landing architecture is also presented.

15:15 - 16:30

SPM C   Paper Presentations

Parametric Representation and Refinement

C-1   "Improved Shape for Refinable Surfaces with Singularly Parameterized Irregularities"
        -Kestutis Karciauskas and Jorg E. Peters

Presentation Time: 15:15 - 15:40


C-2   "Patchwork B-Spline Refinement"
        -Nora Engleitner and Bert Jüttler

Presentation Time: 15:40 - 16:05


C-3   "Solving Piecewise Polynomial Constraint Systems with Decomposition Using Subdivision-Based Solver"
        -Boris van Sosin and Gershon Elber

Presentation Time: 16:05 - 16:30


16:30 - 17:00

Coffee Break

17:00 - 18:15

SPM D   Paper Presentations

Parametric Design and Surface Construction

D-1   "P-Curves and Surfaces: Parametric Design with Global Fullness Control"
        -István Kovács and Tamás Várady

Presentation Time: 17:00 - 17:25


D-2   "Surface Reconstruction by Computing Restricted Voronoi Cells in Parallel"
        -Dobrina Boltcheva and Bruno Levy

Presentation Time: 17:25 - 17:50


D-3   "Isogeometric Segmentation: Construction of Cutting Surfaces"
        -Michael Haberleitner and Bert Jüttler

Presentation Time: 17:50 - 18:15


18:15 - 20:00

SPM   Reception

09:00 - 10:15

SPM E   Paper Presentations

Mesh Processing

E-1   "Distributed Poly-square Mapping for Large-scale Semi-structured Quad Mesh Generation"
        -Celong Liu, Wuyi Yu, Zhonggui Chen, and Xin Li

Presentation Time: 09:00 - 09:25


E-2   "Disjoint Convex Shell and its Applications in Mesh Unfolding"
        -Yun-Hyeong Kim, Zhonghua Xi, and Jyh-Ming Lien

Presentation Time: 09:25 - 09:50


E-3   "An Optimization-driven Approach for Computing Geodesic Paths on Triangle Meshes"
        -Bangquan Liu, Shuangmin Chen, Shiqing Xin, Ying He, Zhen Liu, and Jieyu Zhao

Presentation Time: 09:50 - 10:15


10:15 - 10:45

Coffee Break

10:45 - 12:00

SPM F   Paper Presentations

Additive Manufacturing

F-1   "Lattice Structure Lightweight Triangulation for Additive Manufacturing"
        -Laurent Chougrani, Jean-Philippe Pernot, and Philippe Veron

Presentation Time: 10:45 - 11:10


F-2   "Sample-based Synthesis of Two-scale Structures with Anisotropy"
        -Xingchen Liu and Vadim Shapiro

Presentation Time: 11:10 - 11:35


F-3   "Support Structure Constrained Topology Optimization for Additive Manufacturing"
        (Invited CAD paper)
        -Amir M. Mirzendehdel and Krishnan Suresh

Presentation Time: 11:35 - 12:00


12:00 - 13:30

Lunch Break

13:30 - 14:30

SPM ✦   Keynote Lecture (2)

Kristina Shea
Driving 3D and 4D Printing Forward with Computational Design

The recent rise in digital fabrication, including 3D and 4D printing, may be the best thing that has ever happened to the area of computational design. For years we have been developing algorithms and methods for automatically generating and optimizing designs from large, complex solution spaces. Today, designers struggle with just this, to design parts that take full advantage of the complex shapes and material combinations that are now possible with 3D printing. 4D printing extends on this to enable designs to reconfigure themselves in time after printing. This is a new and exciting playground for computational design. Highlights of our research on novel methods for automatically generating, simulating, and optimizing structural and mechanical systems that can be directly fabricated with 3D printing are presented. The focus is on a multi-material polymer-based process that has also enabled the development of tunable, multi-stable, reconfigurable 4D printed structures.

14:30 - 15:00

Coffee Break

15:00 - 16:15

SPM G   Paper Presentations

3D Model Decomposition and Volumes

G-1   "Automatic Decomposition of 3D-Solids into Contractible Pieces Using Reeb Graphs"
        -Birgit Strodthoff and Bert Jüttler

Presentation Time: 15:00 - 15:25


G-2   "Explicit Cylindrical Maps for Volumes with Arbitrary Topology"
        -Marco Livesu, Marco Attene, Giuseppe Patanè, and Michela Spagnuolo

Presentation Time: 15:25 - 15:50


G-3   "Precise Algebraic-based Swept Volumes for Arbitrary Free-form Shaped Tools Towards Multi-axis CNC Machining Verification"
        -Jinesh Machchhar, Denys Plakhotnik, and Gershon Elber

Presentation Time: 15:50 - 16:15


16:30 - 17:30

SPM   Business Meeting and Best Paper Awards

08:45 - 09:30

SMA   Pioneers & Bézier Awards Announcements

09:45 - 10:45
(concurrent w/ MS-2)

MS-1   Mini-Symposium (Track 1)

Architected Materials
Jan Vandenbrande,
DARPA Program Manager

The biggest problem with solid modeling is the first word: solid. When solid modeling was first conceived about 40 years ago, it was aimed to represent machined parts made out of iso-tropic materials, meaning metals. We have now reached a point where advances in manufacturing technology enables us fine grained control over material properties at each point in space. Unfortunately, our design tools have not kept up with these technologies, and are not capable of representing nor synthesizing the complex interaction of shape with custom, space varying, material properties.

The aim of this workshop is to provide insight into the challenges faced by researchers and practitioners who are modeling new material architectures and the implication for design. The intent is to cover a range of new of materials across several domains (e.g., woven structures, dielectrics, and metals).


1-1: "Weaving Rocks"
        -Brian Cox

Presentation Time: 09:45 - 10:05


1-2: "Modeling and Analysis of Thin and Curvy Stuff"
        -Jon Gosse

Presentation Time: 10:05 - 10:25


1-3: "Printing Voltage Ladders"
        -Stephen Sampayan

Presentation Time: 10:25 - 10:45


09:45 - 10:45
(concurrent w/ MS-1)

MS-2   Mini-Symposium (Track 2)

Geometric Representations for Integrating
Isogeometric Design and Analysis - Part I

Xiaoping Qian,
Associate Professor at UW-Madison

Isogeometric analysis aims to bridge the geometric divide between CAD systems and FEA software tools. Over the last decade, research in isogeometric design and analysis has undergone tremendous growth and has led to substantial progress in both computer-aided design and finite element analysis fields. Different geometric representations such as NURBS, T-splines, triangular splines, manifold basis, and subdivision surfaces have been investigated for use in isogeometric analysis and integration with CAD. This minisymposium aims to capture the state-of-the-art regarding theoretical foundations and computational methods in geometric representations for integrating CAD and analysis.


2-1: "Volumetric Spline Models for Isogeometric Analysis"
        -Bert Jüttler

Presentation Time: 09:45 - 10:05


2-2: "Generalizing Splines for Design and IGA with Irregular Layout"
        -Jorg E. Peters

Presentation Time: 10:05 - 10:25


2-3: "Triangular Bézier Splines for Integrating Design and Analysis"
        -Xiaoping Qian

Presentation Time: 10:25 - 10:45


10:45 - 11:15

Coffee Break

11:15 - 12:15
(concurrent w/ MS-4)

MS-3   Mini-Symposium (Track 1)

Fabrication-Aware Design
Helmut Pottmann,
Head of GCD & Applied Geometry at TU Wien

Geometric Modeling has so far mainly been restricted to pure shape modeling with little or no consideration of material properties, functionality and fabrication. This leads to a costly product development process with multiple feedback loops between design, engineering and fabrication. The proposed minisymposium presents recent progress on modeling systems which consider or even model material properties and other key aspects of function and fabrication of the final product already in the design phase. The three presenters address different aspects of this stream of research: (i) Barton presents results on efficient fabrication of freeform geometry with a focus on architecture and CNC machining and outlines the combination of this work with interactive design, (ii) Elber presents a novel approach for modeling of microstructures and porous materials, and (iii) Tang presents a computational approach for interactive design in the presence of nonlinear constraints. The constraints express material behavior (unstretchable material) and key issues in architectural geometry (panelization, substructure and statics).


3-1: "Geometric Modeling with Manufacturable Surfaces"
        -Michael Barton

Presentation Time: 11:15 - 11:35


3-2: "Precise Construction of Micro-structures and Porous Geometry via Functional Composition"
        -Gershon Elber

Presentation Time: 11:35 - 11:55


3-3: "Guided Projection for Computational Design"
        -Chengcheng Tang

Presentation Time: 11:55 - 12:15


11:15 - 12:15
(concurrent w/ MS-3)

MS-4   Mini-Symposium (Track 2)

Machine Learning for Geometric Computing and Design
Stella Yu,
Director of Vision Group at ICSI

Deep learning has delivered tremendous success for language and image understanding. It is nontheless still at an early stage for 3D data understanding, which is important not only for a variety of computer vision and graphics research topics, but also for a wide range of practical applications in manufacturing and design. Unlike text or images that can be represented as 1D or 2D numerical arrays, 3D data have multiple representational choices, such as volumes, polygonal meshes, depth maps, and point clouds, each tailored to specific application scenarios. They are additionally subject to more and stronger physical modeling and structural constraints, e.g. connectivity and stability. These two aspects about 3D data, representations and constraints, open up new challenges and opportunities in machine learning. In this mini-symposium, we will invite leading researchers to present their work on structural parsing, model completion, style transfer, and design discovery from their big 3D data, and discuss how to effectively represent 3D data and incorporate physical constraints into deep learning for geometric computing.


4-1: "A Point Set Generation Network for 3D Object Reconstruction from a Single Image"
        -Hao Su

Presentation Time: 11:15 - 11:30


4-2: "Learning 3D by Seeing in 2D through In-Network Perspective Cameras"
        -Ersin Yumer

Presentation Time: 11:30 - 11:45


4-3: "LEGOBot - Training on Synthesized 3D Data to Enable Robots to Make with LEGO"
        -Yotto Koga and Mike Haley

Presentation Time: 11:45 - 12:00


4-4: "Deep Form - Understanding and Synthesizing 3D Shapes with Machine Learning"
        -Ara Danielyan and Mike Haley

Presentation Time: 12:00 - 12:15


12:15 - 13:45

Lunch Break

13:45 - 15:45

S3PM ✧   Industry & Government Panel Discussion

Title of the Session

15:45 - 16:45
(concurrent w/ MS-6)

MS-5   Mini-Symposium (Track 1)

Generative Design for Additive Manufacturing
Michael Y. Wang,
Director of HKUST Robotics Institute


5-1: "Project Dreamchatcher: First Steps in Generative Design"
        -Francesco Iorio

Presentation Time: 15:45 - 16:05


5-2: "Topology Optimization versus Cellular Lattices"
        -Michael Y. Wang

Presentation Time: 16:05 - 16:25


5-3: "Supporting-free Infill Modeling for Additive Manufacturing"
        -Charlie C. L. Wang

Presentation Time: 16:25 - 16:45


15:45 - 16:45
(concurrent w/ MS-5)

MS-6   Mini-Symposium (Track 2)

Geometric Representations for Integrating
Isogeometric Design and Analysis - Part II

Xiaoping Qian,
Associate Professor at UW-Madison

Isogeometric analysis aims to bridge the geometric divide between CAD systems and FEA software tools. Over the last decade, research in isogeometric design and analysis has undergone tremendous growth and has led to substantial progress in both computer-aided design and finite element analysis fields. Different geometric representations such as NURBS, T-splines, triangular splines, manifold basis, and subdivision surfaces have been investigated for use in isogeometric analysis and integration with CAD. This minisymposium aims to capture the state-of-the-art regarding theoretical foundations and computational methods in geometric representations for integrating CAD and analysis.


6-1: "How to Build Smooth Splines on Unstructured Quadrilateral Meshes Suited for Isogeometric analysis?"
        -Hendrik Speleers

Presentation Time: 15:45 - 16:05


6-2: "U-Splines: Splines Over Unstructured Meshes"
        -Derek Thomas and Mike Scott

Presentation Time: 16:05 - 16:25


6-3: "Integrating CAD with Abaqus: A Practical Isogeometric Analysis Software Platform for Industrial Applications"
        -Jessica (Yongjie) Zhang

Presentation Time: 16:25 - 16:45


17:00 - 18:00

SPM+SMI   Joint Poster Session

SPM Posters

P-01   "Towards Integrating Topology Optimization and Additive Manufacturing"
        -Amir M. Mirzendehdel and Krishnan Suresh


P-02   "Statistical Analysis of Families of 3D Shapes for Tolerancing Free-form Parts"
        -Mukul Sati and Jarek Rossignac


P-03   "Steadied Lattice Structures"
        -Ashish Gupta and Jarek Rossignac


P-04   "Automatic Learning of User Design Rationales from Examples"
        -Yao-Yi Chiang, Abhishek Jain, Bhaskar Bandyopadhyay, and Craig Knoblock


P-05   "A Framework for Solid Modeling and Structural Analysis of Composites with Defects"
        -Onur Bingol, Bryan Schiefelbein, Robert Grandin, Stephen Holland, and Adarsh Krishnamurthy


P-06   "Folding Thick Origami via Stacking"
        -Zhonghua Xi, Yuki Lee, Huangxin Wang, Yun-Hyeong Kim, Yue Hao, In-Suk Choi, and Jyh-Ming Lien


P-07   "Towards Thick Shells with Isostatic Microstructure"
        -Jorg E. Peters, Meera Sitharam, and Jeremy Youngquist


P-08   "DTHB3D_Reg: Dynamic Truncated Hierarchical B-Spline Based 3D Nonrigid Image Registration"
        -Aishwarya Pawar, Yongjie Zhang, Cosmin Anitescu, Yue Jia, and Timon Rabczuk


P-09   "Voronoi Cells of Non-general Position Spheres Using the GPU"
        -Zhongyin Hu, Xiang Li, Adarsh Krishnamurthy, Iddo Hanniel, and Sara McMains


P-10   "Power Histogram for Circle Detection on Images"
        -Bodi Yuan and Min Liu


P-11   "On Interoperability Challenges and Scenarios"
        -Morad Behandish and Vadim Shapiro


P-12   "Toward Optimal Sensor Placement in 3D Architectural CAD"
        -Young Min Kim and Chandrajit Bajaj


SMI Posters

P-01   "Computing Mass Properties of Objects with Continuously Varying Density Distributions"
        -Suraj Musuvathy and George Allen


P-02   "Efficient Point Membership Classification on Similarity-steady Patterns"
        -Kelsey Kurzeja and Jarek Rossignac


P-03   "Splat Rendering Enhancement via Super Resolution"
        -Giang Bui, Truc Le, and Ye Duan


P-04   "Extraction of Woven Structures of Daily Goods from X-ray CT Volumes"
        -Yukie Nagai, Yutaka Ohtake, and Hiromasa Suzuki


P-05   "Individual Tree Mapping from LiDAR Point Clouds based on Topological Tools"
        -Federico Iuricich, Xin Xu, and Leila De Floriani


P-06   "An Exact and Efficient 3D Mesh Intersection Algorithm Using Only Orientation Predicates"
        -Salles V. G. de Magalhaes, W. Randolph Franklin, and Marcus V. A. Andrade


19:00 - 21:00

S3PM   Convention Dinner

09:00 - 10:15

SMI A   Paper Presentations

​Reconstruction

A-1   "​Patterns from photograph: Reverse-engineering Developable Products"
        -​Amélie Fondevill, Adrien Bousseau, Damien Rohmer, Stefanie Hahmann, and Marie-Paule Cani

Presentation Time: 09:00 - 09:25


A-2   "​Accurate 3D Face Reconstruction via Prior Constrained Structure from Motion"
        -​Matthias Thomas Hernandez, Jongmoo Choi, Tal Hassner, and Gerard Medioni

Presentation Time: 09:25 - 09:50


A-3   "​Extraction of Tubular Shapes from Dense Point Clouds and Application to Tree Reconstruction from Laser Scanned Data"
        -​Joris Ravaglia, Alexandra Bac, and Richard A Fournier

Presentation Time: 09:50 - 10:15


10:15 - 10:45

Coffee Break

10:45 - 12:00

SMI B   Paper Presentations

​​Visibility and Maps

B-1   "​​On the Visibility Locations for Continuous Curves"
        -​​Sarang Joshi, Yoshida Rao, Bharath Ram Sundar, and Ramanathan Muthuganapathy

Presentation Time: 10:45 - 11:10


B-2   "​​On Visibility & Empty-Region Graphs"
        -​​Sagi Katz and Ayellet A. L. Tal

Presentation Time: 11:10 - 11:35


B-3   "​​Fast Mapping and Morphing for Genus-zero Meshes with Cross Spherical Parameterization"
        (Invited C&G paper)
        -​​Chao Peng and Sabin Timalsena

Presentation Time: 11:35 - 12:00


12:00 - 13:30

Lunch Break

13:30 - 14:30

SMI ✦   Keynote Lecture (1)

Hao Li
Digital Human Teleportation using Deep Learning

The age of immersive technologies will create a growing need for processing detailed visual representations of ourselves as virtual reality (VR) is growing into the next generation platform for online communication. A realistic simulation of our presence in such virtual world is unthinkable without a compelling and directable 3D digitization of ourselves. With the wide availability of mobile cameras and the emergence of low-cost VR head mounted displays (HMD), my research goal is to build a comprehensive and deployable teleportation framework for realistic 3D face-to-face communication in cyberspace. By pushing the boundaries in data-driven human digitization as well as bridging concepts in computer graphics and deep learning research, I will showcase several highlights of our current research, from photorealistic avatar creation from a single image, facial performance-sensing head mounted displays, and full-body dynamic shape capture...

14:45 - 16:00

SMI C   Paper Presentations

​Interactive Modeling

C-1   "​​Height Field Construction Using Cross Contours"
        -​​Tuan M. Bui, Junho Kim, and Yunjin Lee

Presentation Time: 14:45 - 15:10


C-2   "​​Interactive Modeling of Smooth Manifold Meshes with Arbitrary Topology: G1 Stitched Bi-cubic Bézier Patches"
        -​​Ergun Akleman, Vinod Srinivasan, and Jianer Chen

Presentation Time: 15:10 - 15:35


C-3   "​​Shape from Sensors: Curve Networks on Surfaces from 3D Orientations"
        -​Tibor Stanko, Stefanie Hahmann, Georges-Pierre Bonneau, and Nathalie Saguin-Sprynski

Presentation Time: 15:35 - 16:00


16:00 - 16:30

Coffee Break

16:30 - 18:45

FASE   Paper Presentations

18:45 - 20:30

SMI   Reception

09:00 - 10:15

SMI D   Paper Presentations

​​Shape Analysis

D-1   "​A Multi-view Recurrent Neural Network for 3D Mesh Segmentation"
        -​Truc Le, Giang Bui, and Ye Duan

Presentation Time: 09:00 - 09:25


D-2   "​​Hierarchical Forman Triangulation: A Multiscale Model for Scalar Field Analysis"
        -​​Federico Iuricich and Leila De Floriani

Presentation Time: 09:25 - 09:50


D-3   "​Hole Detection of a Planar Point Set: An Empty Disk Approach"
        -​​Subhasree Methirumangalath, Shyam Sundar Kannan, Amal Dev Parakkat, and Ramanathan Muthuganapathy

Presentation Time: 09:50 - 10:15


10:15 - 10:45

Coffee Break

10:45 - 12:00

SMI E   Paper Presentations

​​​Meshes and Trusses for Fabrication

E-1   "​​​Unsharp Masking Geometry Improves 3D Prints"
        -​Philipp Herholz, Sebastian Koch, Tamy Boubekeur, and Marc Alexa

Presentation Time: 10:45 - 11:10


E-2   "​​​Epsilon-maps: Characterizing, Detecting and Thickening Thin Features in Geometric Models"
        -​​​Daniela Cabiddu and Marco Attene

Presentation Time: 11:10 - 11:35


E-3   "​​​Support-free Frame Structures"
        -​​​Weiming Wang, Sicheng Qian, Liping Lin, Baojun Li, Bocai Yin, Ligang Liu, and Xiuping Liu

Presentation Time: 11:35 - 12:00


12:00 - 13:30

Lunch Break

13:30 - 14:30

SMI ✦   Keynote Lecture (2)

Jonathan R. Shewchuk
Restricted Constrained Delaunay Triangulations

Surface meshes are used extensively in computer graphics, boundary element methods, and many other applications. Researchers have sought surface triangulations that have formal mathematical properties similar to those enjoyed by Delaunay triangulations in the plane. They succeeded by inventing the "restricted Delaunay triangulation," which is a subcomplex of the three-dimensional Delaunay triangulation. In other words, given a smooth surface embedded in three-dimensional space, we compute a set of points lying on the surface, we compute the 3D Delaunay triangulation of those points, and we select a subset of its triangles to serve as a triangulation of the surface. This subset of triangles, the restricted Delaunay triangulation, has proven itself as a mathematically powerful tool for surface meshing and surface reconstruction...

14:30 - 15:00

Coffee Break

15:00 - 15:50

SMI F   Paper Presentations

​Spatial Subdivisions

F-1   "​​​Parallel Quadtree Construction on Collections of Objects"
        -​Nathan Morrical and John Edwards

Presentation Time: 15:00 - 15:35


F-2   "​Marching Cubes on Dual Grid of Octree for Volume Fraction Data"
        -​Seungki Kim, Yutaka Ohtake, Yukie Nagai, and Hiromasa Suzuki

Presentation Time: 15:35 - 15:50


15:55 - 16:45

SMI G   Paper Presentations

​​Fabrication with Lines and Panels

G-1   "​Line Drawing for 3D Printing"
        -​Zhonggui Chen, Zifu Shen, Jianzhi Guo, Cao Juan, and Xiaoming Zeng

Presentation Time: 15:55 - 16:20


G-2   "​​​Interlocked Archimedean Spirals for Conversion of Planar Rigid Panels into Locally Flexible Panels with Stiffness Control"
        -​​​Saeid Zarrinmehr, Ergun Akleman, Mahmood Ettehad, Negar Kalantar, Alireza Borhani, and Shinjiro Sueda

Presentation Time: 16:20 - 16:45


17:00 - 18:00

SMI   Business Meeting & Best Paper Awards

Location and Venue

Great Lodging, Great Food, & Magnificent Sights


"Vibrant. Dynamic. Cutting edge. The San Francisco Bay Area is a global hub of commerce, innovation, culture and recreation. UC Berkeley sits in the East Bay region with easy access to both San Francisco and Silicon Valley, and a few hours from Yosemite, Napa Valley, Point Reyes and Lake Tahoe. When visiting UC Berkeley, we encourage you to explore the area, hike in the hills, indulge in the California food scene and enjoy the culture and optimism of one of the most desirable areas in the world." Click here for more...


  Convention Venue

University of California, Berkeley

Banatao Auditorium

310 Sutardja Dai Hall

Berkeley, CA 94720, USA

Directions


  Reserved Lodging

Option 1 (Luxury): Hotel Shattuck Plaza

2086 Allston Way

Berkeley, CA 94704, USA

Tel: (510) 845-7300

Directions


Note: The group rate ($239/night for Delux King double rooms) will be available for a reserved block of rooms, until the block sells out and before May 19th, whichever comes first. You can make a reservation either online, by using the booking code 1706S3PM in hotel's online reservation portal, or by calling the hotel directly at (510) 845-7300 and mentioning the code.


Update: The rooms at the Hotel Shattuck Plaza are filling up quickly and we recommend making your reservation as soon as possible.


Option 2 (Budget): The Graduate Berkeley

(Formerly Hotel Durant)

2600 Durant Avenue

Berkeley, CA 94704, USA

Tel: (510) 845-8981

Directions


Note: The group rate ($179/night for single and $189 for double rooms) will be available for a reserved block of rooms, until the block sells out and before May 30th, whichever comes first. You can make a reservation by using this direct web link, or by calling the hotel directly at (510) 845-8981 and mentioning the group name S3PM-ICSI.


Update: The rooms at the Graduate Berkeley are filling up quickly and we recommend making your reservation as soon as possible.


Option 3 (Budget): The Bancroft Hotel

2680 Bancroft Way

Berkeley, CA 94704, USA

Tel: (510) 549-1000

Directions


Note: The group rate ($159/night for single rooms) will be available for a reserved block of rooms, until the block sells out and before May 17th, whichever comes first. You can make a reservation by calling the hotel directly at (510) 549-1000 and mentioning the event name.


Update: Currently, the Bancroft Hotel is almost fully sold out.


  Other Lodging

Option 4 (Luxury+): Claremont Club and Spa

41 Tunnel Road

Berkeley, CA 94705, USA

Tel: (510) 843-3000

Directions


Option 5 (Budget+): Downtown Berkeley YMCA

2001 Allston Way

Berkeley, CA 94704, USA

Tel: (510) 848-6800

Directions


Click here to check other lodging options.


Another option to explore is Airbnb. But we recommend that you first check with your institution regarding their reimburement policies, as some universities do not accept such alternatives.


  Invitation Letters

If you need an invitation letter in order to apply for a US visa at a US Embassy or Consulate Office, please send your request via an e-mail, with the following information:

  • The title of your paper(s), poster(s), mini-symposium talk(s), and/or keynote speech (if applicable) or any other specific information supporting the necessity of your attendance to be presented to the Consular Officer. Please include the names of co-authors and conference sessions.
  • The full mailing address to which the letter is to be addressed.


  Berkeley highlights


  Beyond Berkeley


  San Fransisco

Less than one hour away via Bay Area Rapid Transport (BART)!

  • Pier 39: From amazing views and a sea of sea lions to chowder bread bowls and California wines.
  • Golden Gate Bridge: Once called "the bridge that couldn't be built," today it is one the seven wonders of the modern world.
  • Golden Gate Park: One of the largest urban parks in the world, Golden Gate Park stretches for three miles on the western edge of San Francisco.
  • Lombard Street: This scenic road on Russian Hill features tight turns, fragrant gardens and beautiful views of the bay, Alcatraz, and Coit Tower.
  • Alcatraz Island: Alcatraz became a federal penitentiary from 1934-1963, housing famous convicts such as Al Capone and George "Machine Gun" Kelly.
  • California Academy of Sciences: Home to an aquarium, planetarium, natural history museum, and world-class research and education programs,.

See more on the top 20 San Fransisco attractions. And here is a video review by New York Times!

Keep me informed

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Convention Organizers

See SPM, SMI, and FASE webpages for Program Chairs

Vadim Shapiro

Univ. of Wisconsin-Madison & ICSI


S3PM
Convention Chair


Sara McMains

Univ. of California, Berkeley


SPM
Conference Chair


Jarek Rossignac

Georgia Tech


SMI
Conference Chair


Leah Hitchcock

ICSI


S3PM
Local Arrangements Chair


Morad Behandish

ICSI


S3PM
Publicity Chair


Sponsors & Partners

Interested in becoming a sponsor? Get in touch

So far, we have five financial sponsors supporting S3PM: Autodesk (Gold), Siemens (Gold), PARC (Gold), University of Wisconsin (Gold), and Elsevier (Silver).


The S3PM-2017 is held "in-cooperation" with ACM/SIGGRAPH and EuroGraphics. ACM and EG members will benefit from special discounts for registration.


The National Science Foundation (NSF) is providing generous travel funds for supporting student attendees. Click here for instructions and application.

The S3PM-2017 is hosted by the International Computer Science Institute (ICSI), a leading independent, nonprofit center for research in computer science.