BEGIN:VCALENDAR
VERSION:2.0
PRODID:Linklings LLC
BEGIN:VTIMEZONE
TZID:America/Los_Angeles
X-LIC-LOCATION:America/Los_Angeles
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260417T190100Z
LOCATION:West Building\, Rooms 211-214
DTSTART;TZID=America/Los_Angeles:20250813T140000
DTEND;TZID=America/Los_Angeles:20250813T153000
UID:siggraph_SIGGRAPH 2025_sess120@linklings.com
SUMMARY:CAD & B-Reps
DESCRIPTION:Stitch-A-Shape: Bottom-up Learning for B-Rep Generation\n\nSti
 tch-A-Shape introduces a novel framework for generating B-Rep models by di
 rectly addressing both topology and geometry. Using a sequential stitching
  approach, it assembles 3D shapes from vertices through curves to faces, e
 ffectively managing topological and geometric complexities. The framework 
 d...\n\n\nPu Li (Institute of Automation, Chinese Academy Of Sciences) and
  Wenhao Zhang, Jinglu Chen, and Dongming Yan (Institute of Automation, Chi
 nese Academy of Sciences)\n---------------------\nCAD & B-Reps - Interacti
 ve Discussion\n\nAfter the summary presentations, attendees will participa
 te in an interactive discussion. Outside the room will be a series of post
 er boards for authors to gather around with the audience. Authors are invi
 ted to bring any material related to their paper that could instigate furt
 her conversation such...\n\n---------------------\nHoLa: B-Rep Generation 
 using a Holistic Latent Representation\n\nWe introduce a novel representat
 ion for learning and generating Computer-Aided Design (CAD) models in the 
 form of boundary representations (BReps). Our representation unifies the c
 ontinuous geometric properties of BRep primitives in different orders (e.g
 ., surfaces and curves) and their\ndiscrete top...\n\n\nYilin Liu, Duoteng
  Xu, and Xingyao Yu (Shenzhen University); Xiang Xu (Simon Fraser Universi
 ty, Autodesk Research); Daniel Cohen-Or (Tel Aviv University, Shenzhen Uni
 versity); Hao Zhang (Simon Fraser University); and Hui Huang (Shenzhen Uni
 versity)\n---------------------\nBrepDiff: Single-Stage B-rep Diffusion Mo
 del\n\nWe present BrepDiff, a simple, single-stage diffusion model for gen
 erating Boundary Representations (B-reps). Our approach generates B-reps b
 y denoising point-based face samples with a dedicated noise schedule. Unli
 ke multi-stage methods, BrepDiff enables intuitive, editable geometry crea
 tion, inclu...\n\n\nMingi Lee and Dongsu Zhang (Seoul National University)
 , Clément Jambon (Massachusetts Institute of Technology (MIT)), and Young 
 Min Kim (Seoul National University)\n---------------------\nPS-CAD: Local 
 Geometry Guidance via Prompting and Selection for CAD Reconstruction\n\nWe
  propose an iterative prompt-and-select architecture to progressively reco
 nstruct the CAD modeling sequence of a target point cloud. We propose the 
 concept of local geometric guidance and come up with three ways to integra
 te this guidance into iterative reconstruction. Experiments demonstrate th
 e ...\n\n\nBingchen Yang and Haiyong Jiang (School of Artificial Intellige
 nce, University of Chinese Academy of Sciences); Hao Pan (Tsinghua Univers
 ity); Guosheng Lin (Nanyang Technological University); Jun Xiao (School of
  Artificial Intelligence, University of Chinese Academy of Sciences); Pete
 r Wonka (KAUST); and Bingchen Yang\n---------------------\nDeFillet: Detec
 tion and Removal of Fillet Regions in Polygonal CAD Models\n\nDeFillet, th
 e reverse of CAD filleting, is vital for CAE and redesign but challenging 
 with polygon CAD models. Our algorithm uses Voronoi vertices as rolling-ba
 ll center candidates to efficiently identify fillets. Sharp features are t
 hen reconstructed via quadratic optimization, validated on diverse...\n\n\
 nJing-En Jiang (School of Computer Science and Technology, Shandong Univer
 sity); Hanxiao Wang (Institute of Automation, Chinese Academy of Sciences,
  Beijing, China     The School of Artificial Intelligence, University of C
 hinese Academy of Sciences); Mingyang Zhao (Academy of Mathematics and Sys
 tems Science, Chinese Academy of Sciences, the University of Chinese Acade
 my of Sciences); Dong-Ming Yan (Institute of Automation, Chinese Academy o
 f Sciences); Shuangmin Chen (School of Information and Technology, Qingdao
  University of Science and Technology); Shiqing Xin (School of Computer Sc
 ience and Technology, Shandong University); Changhe Tu (School of Computer
  Science and Technology,  Shandong University); and Wenping Wang (Computer
  Science & Engineering,  Texas A&M University)\n---------------------\nBoo
 lean Operation for CAD Models Using a Hybrid Representation\n\nWe propose 
 a novel algorithm for efficient and accurate Boolean operations on B-Rep m
 odels by mapping them bijectively to controllable-error triangle meshes. U
 sing conservative intersection detection on the mesh to locate all surface
  intersection curves and carefully handling degeneration and topolo...\n\n
 \nYingyu Yang and Xiaohong Jia (State Key Laboratory of Mathematical Scien
 ces, Academy of Mathematics and Systems Science, Chinese Academy of Scienc
 es; University of Chinese Academy of Sciences); Bolun Wang (Visual Computi
 ng Institute, RWTH Aachen University); Jieyin Yang (State Key Laboratory o
 f Mathematical Sciences, Academy of Mathematics and Systems Science, Chine
 se Academy of Sciences; University of Chinese Academy of Sciences); Shiqin
 g Xin (Shandong University); and Dong-Ming Yan (MAIS, Institute of Automat
 ion, Chinese Academy of Sciences; University of Chinese Academy of Science
 s)\n\nInterest Area: Research & Education\n\nRecording: Livestreamed, Not 
 Livestreamed, Recorded, Not Recorded\n\nRegistration Category: Full Confer
 ence, Virtual Access, Wednesday\n\nSession Chair: Hsueh-Ti Derek Liu (Robl
 ox, University of British Columbia)
END:VEVENT
END:VCALENDAR