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3D scan geometry and CAD models often contain complementary information towards understanding environments, which could be leveraged through establishing a mapping between the two domains. However, this is a challenging task due to strong,…

Computer Vision and Pattern Recognition · Computer Science 2019-08-21 Manuel Dahnert , Angela Dai , Leonidas Guibas , Matthias Nießner

Point-pixel registration between LiDAR point clouds and camera images is a fundamental yet challenging task in autonomous driving and robotic perception. A key difficulty lies in the modality gap between unstructured point clouds and…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Yu Han , Zhiwei Huang , Yanting Zhang , Fangjun Ding , Shen Cai , Rui Fan

We propose the first algorithm for non-rigid 2D-to-3D shape matching, where the input is a 2D shape represented as a planar curve and a 3D shape represented as a surface; the output is a continuous curve on the surface. We cast the problem…

Computer Vision and Pattern Recognition · Computer Science 2022-01-24 Zorah Lähner , Emanuele Rodolà , Frank R. Schmidt , Michael M. Bronstein , Daniel Cremers

Pairwise compatibility calculation is at the core of most fragments-reconstruction algorithms, in particular those designed to solve different types of the jigsaw puzzle problem. However, most existing approaches fail, or aren't designed to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Ofir Itzhak Shahar , Gur Elkin , Ohad Ben-Shahar

Finding localized correspondences across different images of the same object is crucial to understand its geometry. In recent years, this problem has seen remarkable progress with the advent of deep learning-based local image features and…

Computer Vision and Pattern Recognition · Computer Science 2024-01-31 Arjun Karpur , Guilherme Perrotta , Ricardo Martin-Brualla , Howard Zhou , André Araujo

We investigate the problem of learning to generate 3D parametric surface representations for novel object instances, as seen from one or more views. Previous work on learning shape reconstruction from multiple views uses discrete…

Computer Vision and Pattern Recognition · Computer Science 2020-08-19 Jiahui Lei , Srinath Sridhar , Paul Guerrero , Minhyuk Sung , Niloy Mitra , Leonidas J. Guibas

Image-to-point cloud registration aims to determine the relative camera pose between an RGB image and a reference point cloud, serving as a general solution for locating 3D objects from 2D observations. Matching individual points with…

Computer Vision and Pattern Recognition · Computer Science 2024-01-19 Gongxin Yao , Yixin Xuan , Yiwei Chen , Yu Pan

Estimating a depth map from multiple views of a scene is a fundamental task in computer vision. As soon as more than two viewpoints are available, one faces the very basic question how to measure similarity across >2 image patches.…

Computer Vision and Pattern Recognition · Computer Science 2017-08-22 Wilfried Hartmann , Silvano Galliani , Michal Havlena , Luc Van Gool , Konrad Schindler

We propose a method for joint detection and tracking of multiple objects in 3D point clouds, a task conventionally treated as a two-step process comprising object detection followed by data association. Our method embeds both steps into a…

Computer Vision and Pattern Recognition · Computer Science 2022-11-03 Jyoti Kini , Ajmal Mian , Mubarak Shah

Pre-training has become a standard paradigm in many computer vision tasks. However, most of the methods are generally designed on the RGB image domain. Due to the discrepancy between the two-dimensional image plane and the three-dimensional…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Zhenyu Li , Zehui Chen , Ang Li , Liangji Fang , Qinhong Jiang , Xianming Liu , Junjun Jiang , Bolei Zhou , Hang Zhao

Scene understanding from images is a challenging problem encountered in autonomous driving. On the object level, while 2D methods have gradually evolved from computing simple bounding boxes to delivering finer grained results like instance…

Computer Vision and Pattern Recognition · Computer Science 2020-03-11 Rui Wang , Nan Yang , Joerg Stueckler , Daniel Cremers

Symmetry in biological and physical systems is a product of self organization driven by evolutionary processes, or mechanical systems under constraints. Symmetry based feature extrac-tion or representation by neural networks may unravel the…

Neurons and Cognition · Quantitative Biology 2021-03-02 Birgitta Dresp-Langley , John M. Wandeto

Scene-level point cloud registration is very challenging when considering dynamic foregrounds. Existing indoor datasets mostly assume rigid motions, so the trained models cannot robustly handle scenes with non-rigid motions. On the other…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Keyu Du , Hao Xu , Haipeng Li , Hong Qu , Chi-Wing Fu , Shuaicheng Liu

Accurate detection of objects in 3D point clouds is a key problem in autonomous driving systems. Collaborative perception can incorporate information from spatially diverse sensors and provide significant benefits for improving the…

Computer Vision and Pattern Recognition · Computer Science 2022-05-25 Junyong Wang , Yuan Zeng , Yi Gong

This paper presents a novel framework for simultaneously implementing localization and segmentation, which are two of the most important vision-based tasks for robotics. While the goals and techniques used for them were considered to be…

Computer Vision and Pattern Recognition · Computer Science 2019-10-30 Kai Wang , Yimin Lin , Luowei Wang , Liming Han , Minjie Hua , Xiang Wang , Shiguo Lian , Bill Huang

This paper introduces SuperGlue, a neural network that matches two sets of local features by jointly finding correspondences and rejecting non-matchable points. Assignments are estimated by solving a differentiable optimal transport…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Paul-Edouard Sarlin , Daniel DeTone , Tomasz Malisiewicz , Andrew Rabinovich

Automatic discovery of category-specific 3D keypoints from a collection of objects of some category is a challenging problem. One reason is that not all objects in a category necessarily have the same semantic parts. The level of difficulty…

Computer Vision and Pattern Recognition · Computer Science 2021-01-07 Clara Fernandez-Labrador , Ajad Chhatkuli , Danda Pani Paudel , Jose J. Guerrero , Cédric Demonceaux , Luc Van Gool

We present a fine-tuning method to improve the appearance of 3D geometries reconstructed from single images. We leverage advances in monocular depth estimation to obtain disparity maps and present a novel approach to transforming 2D…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Marissa Ramirez de Chanlatte , Matheus Gadelha , Thibault Groueix , Radomir Mech

While impressive progress has recently been made in image-oriented facial attribute translation, shape-oriented 3D facial attribute translation remains an unsolved issue. This is primarily limited by the lack of 3D generative models and…

Computer Vision and Pattern Recognition · Computer Science 2023-08-28 Zhenfeng Fan , Zhiheng Zhang , Shuang Yang , Chongyang Zhong , Min Cao , Shihong Xia

Finding correspondences between 3D deformable shapes is an important and long-standing problem in geometry processing, computer vision, graphics, and beyond. While various shape matching datasets exist, they are mostly static or limited in…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Viktoria Ehm , Nafie El Amrani , Yizheng Xie , Lennart Bastian , Maolin Gao , Weikang Wang , Lu Sang , Dongliang Cao , Tobias Weißberg , Zorah Lähner , Daniel Cremers , Florian Bernard