Free2cad: Parsing freehand drawings into cad commands

C Li, H Pan, A Bousseau, NJ Mitra - ACM Transactions on Graphics …, 2022 - dl.acm.org
CAD modeling, despite being the industry-standard, remains restricted to usage by skilled
practitioners due to two key barriers. First, the user must be able to mentally parse a final …

Brepgen: A b-rep generative diffusion model with structured latent geometry

X Xu, J Lambourne, P Jayaraman, Z Wang… - ACM Transactions on …, 2024 - dl.acm.org
This paper presents BrepGen, a diffusion-based generative approach that directly outputs a
Boundary representation (B-rep) Computer-Aided Design (CAD) model. BrepGen …

Secad-net: Self-supervised cad reconstruction by learning sketch-extrude operations

P Li, J Guo, X Zhang, DM Yan - Proceedings of the IEEE …, 2023 - openaccess.thecvf.com
Reverse engineering CAD models from raw geometry is a classic but strenuous research
problem. Previous learning-based methods rely heavily on labels due to the supervised …

Editable image geometric abstraction via neural primitive assembly

Y Chen, B Ni, X Chen, Z Hu - Proceedings of the IEEE/CVF …, 2023 - openaccess.thecvf.com
This work explores a novel image geometric abstraction paradigm based on assembly out of
a pool of pre-defined simple parametric primitives (ie, triangle, rectangle, circle and …

Extrudenet: Unsupervised inverse sketch-and-extrude for shape parsing

D Ren, J Zheng, J Cai, J Li, J Zhang - European Conference on Computer …, 2022 - Springer
Sketch-and-extrude is a common and intuitive modeling process in computer aided design.
This paper studies the problem of learning the shape given in the form of point clouds by …

Doodle your 3d: From abstract freehand sketches to precise 3d shapes

H Bandyopadhyay, S Koley, A Das… - Proceedings of the …, 2024 - openaccess.thecvf.com
In this paper we democratise 3D content creation enabling precise generation of 3D shapes
from abstract sketches while overcoming limitations tied to drawing skills. We introduce a …

Skexgen: Autoregressive generation of cad construction sequences with disentangled codebooks

X Xu, KDD Willis, JG Lambourne, CY Cheng… - arXiv preprint arXiv …, 2022 - arxiv.org
We present SkexGen, a novel autoregressive generative model for computer-aided design
(CAD) construction sequences containing sketch-and-extrude modeling operations. Our …

Omniseg3d: Omniversal 3d segmentation via hierarchical contrastive learning

H Ying, Y Yin, J Zhang, F Wang, T Yu… - Proceedings of the …, 2024 - openaccess.thecvf.com
Towards holistic understanding of 3D scenes a general 3D segmentation method is needed
that can segment diverse objects without restrictions on object quantity or categories while …

Improving unsupervised visual program inference with code rewriting families

A Ganeshan, RK Jones… - Proceedings of the IEEE …, 2023 - openaccess.thecvf.com
Programs offer compactness and structure that makes them an attractive representation for
visual data. We explore how code rewriting can be used to improve systems for inferring …

Shapecoder: Discovering abstractions for visual programs from unstructured primitives

RK Jones, P Guerrero, NJ Mitra, D Ritchie - ACM Transactions on …, 2023 - dl.acm.org
We introduce ShapeCoder, the first system capable of taking a dataset of shapes,
represented with unstructured primitives, and jointly discovering (i) useful abstraction …