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Since the point cloud data is inherently irregular and unstructured, point cloud semantic segmentation has always been a challenging task. The graph-based method attempts to model the irregular point cloud by representing it as a graph;…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Wei Tao , Xiaoyang Qu , Kai Lu , Jiguang Wan , Shenglin He , Jianzong Wang

We present GenAnalysis, an implicit shape generation framework that allows joint analysis of man-made shapes, including shape matching and joint shape segmentation. The key idea is to enforce an as-affine-as-possible (AAAP) deformation…

Graphics · Computer Science 2025-05-27 Yuezhi Yang , Haitao Yang , Kiyohiro Nakayama , Xiangru Huang , Leonidas Guibas , Qixing Huang

3D data that contains rich geometry information of objects and scenes is valuable for understanding 3D physical world. With the recent emergence of large-scale 3D datasets, it becomes increasingly crucial to have a powerful 3D generative…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Jianwen Xie , Zilong Zheng , Ruiqi Gao , Wenguan Wang , Song-Chun Zhu , Ying Nian Wu

In this paper, we focus on latent modification and generation of 3D point cloud object models with respect to their semantic parts. Different to the existing methods which use separate networks for part generation and assembly, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2021-02-26 Cihan Öngün , Alptekin Temizel

Latent space models for network data characterize each node through a vector of latent features whose pairwise similarities define the edge probabilities among the pairs of nodes. Although this formulation has led to successful…

Methodology · Statistics 2026-04-06 Federico Pavone , Daniele Durante , Robin J. Ryder

Natural images are projections of 3D objects on a 2D image plane. While state-of-the-art 2D generative models like GANs show unprecedented quality in modeling the natural image manifold, it is unclear whether they implicitly capture the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-15 Xingang Pan , Bo Dai , Ziwei Liu , Chen Change Loy , Ping Luo

3D-aware Generative Adversarial Networks (3D-GANs) currently exhibit artifacts in their 3D geometrical modeling, such as mesh imperfections and holes. These shortcomings are primarily attributed to the limited availability of annotated 3D…

Computer Vision and Pattern Recognition · Computer Science 2023-12-20 Jiarong Guo , Xiaogang Xu , Hengshuang Zhao

This work describes a novel data-driven latent space inference framework built on paired autoencoders to handle observational inconsistencies when solving inverse problems. Our approach uses two autoencoders, one for the parameter space and…

Machine Learning · Computer Science 2026-01-19 Emma Hart , Bas Peters , Julianne Chung , Matthias Chung

Humans perceive the 3D world as a set of distinct objects that are characterized by various low-level (geometry, reflectance) and high-level (connectivity, adjacency, symmetry) properties. Recent methods based on convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2020-04-03 Despoina Paschalidou , Luc van Gool , Andreas Geiger

TASED-Net is a 3D fully-convolutional network architecture for video saliency detection. It consists of two building blocks: first, the encoder network extracts low-resolution spatiotemporal features from an input clip of several…

Computer Vision and Pattern Recognition · Computer Science 2019-08-19 Kyle Min , Jason J. Corso

Current 3D-aware pretraining methods for embodied perception and manipulation are largely built on differentiable rendering frameworks, producing either fully implicit neural fields or fully explicit geometric primitives. Implicit…

Exploiting fine-grained semantic features on point cloud is still challenging due to its irregular and sparse structure in a non-Euclidean space. Among existing studies, PointNet provides an efficient and promising approach to learn shape…

Computer Vision and Pattern Recognition · Computer Science 2019-05-22 Can Chen , Luca Zanotti Fragonara , Antonios Tsourdos

Camouflaged object detection segments objects with intrinsic similarity and edge disruption. Current detection methods rely on accumulated complex components. Each approach adds components such as boundary modules, attention mechanisms, and…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Baber Jan , Saeed Anwar , Aiman H. El-Maleh , Abdul Jabbar Siddiqui , Abdul Bais

Convolutional Neural Networks (CNNs) have proved exceptional at learning representations for visual object categorization. However, CNNs do not explicitly encode objects, parts, and their physical properties, which has limited CNNs' success…

Computer Vision and Pattern Recognition · Computer Science 2020-06-25 Daniel M. Bear , Chaofei Fan , Damian Mrowca , Yunzhu Li , Seth Alter , Aran Nayebi , Jeremy Schwartz , Li Fei-Fei , Jiajun Wu , Joshua B. Tenenbaum , Daniel L. K. Yamins

We propose a novel model for 3D semantic completion from a single depth image, based on a single encoder and three separate generators used to reconstruct different geometric and semantic representations of the original and completed scene,…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Yida Wang , David Joseph Tan , Nassir Navab , Federico Tombari

During the continuous evolution of one organism's ancestry, its genes accumulate extensive experiences and knowledge, enabling newborn descendants to rapidly adapt to their specific environments. Motivated by this observation, we propose a…

Machine Learning · Computer Science 2023-06-30 Qiufeng Wang , Xu Yang , Shuxia Lin , Jing Wang , Xin Geng

Recent work has shown the possibility of training generative models of 3D content from 2D image collections on small datasets corresponding to a single object class, such as human faces, animal faces, or cars. However, these models struggle…

Computer Vision and Pattern Recognition · Computer Science 2023-02-15 Kyle Sargent , Jing Yu Koh , Han Zhang , Huiwen Chang , Charles Herrmann , Pratul Srinivasan , Jiajun Wu , Deqing Sun

In this contribution, we demonstrate that Graph Neural Networks and Transformers can learn to reason about geometric constraints. We train them to predict spatial position of points in a discrete 2D grid from a set of constraints that…

Machine Learning · Computer Science 2026-03-03 Jan Hůla , David Mojžíšek , Jiří Janeček , David Herel , Mikoláš Janota

We introduce RIM-Net, a neural network which learns recursive implicit fields for unsupervised inference of hierarchical shape structures. Our network recursively decomposes an input 3D shape into two parts, resulting in a binary tree…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Chengjie Niu , Manyi Li , Kai Xu , Hao Zhang

Differentiable rendering has paved the way to training neural networks to perform "inverse graphics" tasks such as predicting 3D geometry from monocular photographs. To train high performing models, most of the current approaches rely on…

Computer Vision and Pattern Recognition · Computer Science 2021-04-22 Yuxuan Zhang , Wenzheng Chen , Huan Ling , Jun Gao , Yinan Zhang , Antonio Torralba , Sanja Fidler