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Object completion networks typically produce static Signed Distance Fields (SDFs) that faithfully reconstruct geometry but cannot be rescaled or deformed without introducing structural distortions. This limitation restricts their use in…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Jelle Vermandere , Maarten Bassier , Maarten Vergauwen

Diffusion models have shown remarkable results for image generation, editing and inpainting. Recent works explore diffusion models for 3D shape generation with neural implicit functions, i.e., signed distance function and occupancy…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Junsheng Zhou , Weiqi Zhang , Baorui Ma , Kanle Shi , Yu-Shen Liu , Zhizhong Han

We address the problem of scene flow: given a pair of stereo or RGB-D video frames, estimate pixelwise 3D motion. We introduce RAFT-3D, a new deep architecture for scene flow. RAFT-3D is based on the RAFT model developed for optical flow…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Zachary Teed , Jia Deng

We propose a novel 3D spatial representation for data fusion and scene reconstruction. Probabilistic Signed Distance Function (Probabilistic SDF, PSDF) is proposed to depict uncertainties in the 3D space. It is modeled by a joint…

Robotics · Computer Science 2018-07-31 Wei Dong , Qiuyuan Wang , Xin Wang , Hongbin Zha

Object detectors achieve strong performance under nominal imaging conditions but can fail silently when exposed to blur, noise, compression, adverse weather, or resolution changes. In safety-critical settings, it is therefore insufficient…

Computer Vision and Pattern Recognition · Computer Science 2026-02-23 Stefan Becker , Simon Weiss , Wolfgang Hübner , Michael Arens

This paper proposes a framework for 3D obstacle avoidance in the presence of partial observability of environment obstacles. The method focuses on the utility of the Artificial Potential Function (APF) controller in a practical setting…

Robotics · Computer Science 2021-03-18 Shakeeb Ahmad , Zachary N. Sunberg , J. Sean Humbert

In autonomous driving, mapping is critical for motion planning but remains an under-utilized resource for perception tasks such as 3D object detection. Maps can provide robust structural priors of the static environment, helping resolve…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Yang Fu , Yuliang Zou , Hao Xiang , Xin Huang , Yijing Bai , Chen Song , Weijing Shi , Govind Thattai , Dragomir Anguelov , Mingxing Tan , Yingwei Li

Structured 3D representations such as keypoints and meshes offer compact, expressive descriptions of deformable objects, jointly capturing geometric and topological information useful for downstream tasks such as dynamics modeling and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Yeheng Zong , Yizhou Chen , Alexander Bowler , Chia-Tung Yang , Ram Vasudevan

We present a scalable method for detecting objects and estimating their 3D poses in RGB-D data. To this end, we rely on an efficient representation of object views and employ hashing techniques to match these views against the input frame…

Computer Vision and Pattern Recognition · Computer Science 2016-07-21 Wadim Kehl , Federico Tombari , Nassir Navab , Slobodan Ilic , Vincent Lepetit

Many 3D tasks such as pose alignment, animation, motion transfer, and 3D reconstruction rely on establishing correspondences between 3D shapes. This challenge has recently been approached by pairwise matching of semantic features from…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Lukas Uzolas , Elmar Eisemann , Petr Kellnhofer

Existing 3D surface representation approaches are unable to accurately classify pixels and their orientation lying on the boundary of an object. Thus resulting in coarse representations which usually require post-processing steps to extract…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Mateusz Michalkiewicz , Jhony K. Pontes , Dominic Jack , Mahsa Baktashmotlagh , Anders Eriksson

3D object detection with surrounding cameras has been a promising direction for autonomous driving. In this paper, we present SimMOD, a Simple baseline for Multi-camera Object Detection, to solve the problem. To incorporate multi-view…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Yunpeng Zhang , Wenzhao Zheng , Zheng Zhu , Guan Huang , Jie Zhou , Jiwen Lu

Effectively preserving and encoding structure features from objects in irregular and sparse LiDAR points is a key challenge to 3D object detection on point cloud. Recently, Transformer has demonstrated promising performance on many 2D and…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Xiaoyu Feng , Heming Du , Yueqi Duan , Yongpan Liu , Hehe Fan

Grasping deformable objects is not well researched due to the complexity in modelling and simulating the dynamic behavior of such objects. However, with the rapid development of physics-based simulators that support soft bodies, the…

Robotics · Computer Science 2021-07-20 Tran Nguyen Le , Jens Lundell , Fares J. Abu-Dakka , Ville Kyrki

We introduce a novel motion estimation method, MaskFlow, that is capable of estimating accurate motion fields, even in very challenging cases with small objects, large displacements and drastic appearance changes. In addition to lower-level…

Computer Vision and Pattern Recognition · Computer Science 2023-11-22 Aria Ahmadi , David R. Walton , Tim Atherton , Cagatay Dikici

We present a simple and effective framework, named Point2Seq, for 3D object detection from point clouds. In contrast to previous methods that normally {predict attributes of 3D objects all at once}, we expressively model the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Yujing Xue , Jiageng Mao , Minzhe Niu , Hang Xu , Michael Bi Mi , Wei Zhang , Xiaogang Wang , Xinchao Wang

We present a novel non-iterative learnable method for partial-to-partial 3D shape registration. The partial alignment task is extremely complex, as it jointly tries to match between points and identify which points do not appear in the…

Computer Vision and Pattern Recognition · Computer Science 2022-01-28 Dvir Ginzburg , Dan Raviv

LiDAR point clouds collected from a moving vehicle are functions of its trajectories, because the sensor motion needs to be compensated to avoid distortions. When autonomous vehicles are sending LiDAR point clouds to deep networks for…

Computer Vision and Pattern Recognition · Computer Science 2021-08-02 Yiming Li , Congcong Wen , Felix Juefei-Xu , Chen Feng

Adversarial attack methods based on point manipulation for 3D point cloud classification have revealed the fragility of 3D models, yet the adversarial examples they produce are easily perceived or defended against. The trade-off between the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-11 Tianrui Lou , Xiaojun Jia , Jindong Gu , Li Liu , Siyuan Liang , Bangyan He , Xiaochun Cao

LiDAR and camera fusion techniques are promising for achieving 3D object detection in autonomous driving. Most multi-modal 3D object detection frameworks integrate semantic knowledge from 2D images into 3D LiDAR point clouds to enhance…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Shaoqing Xu , Fang Li , Ziying Song , Jin Fang , Sifen Wang , Zhi-Xin Yang