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During 3D reconstruction, it is often the case that people cannot scan each individual object from all views, resulting in missing geometry in the captured scan. This missing geometry can be fundamentally limiting for many applications,…

Computer Vision and Pattern Recognition · Computer Science 2020-03-13 Ji Hou , Angela Dai , Matthias Nießner

Equivariance is a powerful prior for learning physical dynamics, yet exact group equivariance can degrade performance if the symmetries are broken. We propose object-centric world models built with geometric algebra neural networks,…

Machine Learning · Computer Science 2025-12-18 Hampus Linander , Conor Heins , Alexander Tschantz , Marco Perin , Christopher Buckley

Recent LSS-based multi-view 3D object detection has made tremendous progress, by processing the features in Brid-Eye-View (BEV) via the convolutional detector. However, the typical convolution ignores the radial symmetry of the BEV features…

Computer Vision and Pattern Recognition · Computer Science 2023-04-05 Chengjian Feng , Zequn Jie , Yujie Zhong , Xiangxiang Chu , Lin Ma

Inverted bottleneck layers, which are built upon depthwise convolutions, have been the predominant building blocks in state-of-the-art object detection models on mobile devices. In this work, we investigate the optimality of this design…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Yunyang Xiong , Hanxiao Liu , Suyog Gupta , Berkin Akin , Gabriel Bender , Yongzhe Wang , Pieter-Jan Kindermans , Mingxing Tan , Vikas Singh , Bo Chen

We introduce group crosscoders, an extension of crosscoders that systematically discover and analyse symmetrical features in neural networks. While neural networks often develop equivariant representations without explicit architectural…

Machine Learning · Computer Science 2024-11-04 Liv Gorton

We present a novel group collaborative learning framework (GCoNet) capable of detecting co-salient objects in real time (16ms), by simultaneously mining consensus representations at group level based on the two necessary criteria: 1)…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Qi Fan , Deng-Ping Fan , Huazhu Fu , Chi Keung Tang , Ling Shao , Yu-Wing Tai

The superior performance of Deformable Convolutional Networks arises from its ability to adapt to the geometric variations of objects. Through an examination of its adaptive behavior, we observe that while the spatial support for its neural…

Computer Vision and Pattern Recognition · Computer Science 2018-11-29 Xizhou Zhu , Han Hu , Stephen Lin , Jifeng Dai

We study how group symmetry helps improve data efficiency and generalization for end-to-end differentiable planning algorithms when symmetry appears in decision-making tasks. Motivated by equivariant convolution networks, we treat the path…

Machine Learning · Computer Science 2023-05-02 Linfeng Zhao , Xupeng Zhu , Lingzhi Kong , Robin Walters , Lawson L. S. Wong

Image classification remains a fundamental yet challenging task in computer vision, particularly when fine-grained feature extraction and background noise suppression are required simultaneously. Conventional convolutional neural networks,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-29 Wentao Jiang , Yuanchan Xu , Heng Yuan

Object detection is a crucial task for autonomous driving. In addition to requiring high accuracy to ensure safety, object detection for autonomous driving also requires real-time inference speed to guarantee prompt vehicle control, as well…

Computer Vision and Pattern Recognition · Computer Science 2019-06-12 Bichen Wu , Alvin Wan , Forrest Iandola , Peter H. Jin , Kurt Keutzer

Advanced video analytic systems, including scene classification and object detection, have seen widespread success in various domains such as smart cities and autonomous transportation. With an ever-growing number of powerful client…

Computer Vision and Pattern Recognition · Computer Science 2020-10-22 Ran Xu , Chen-lin Zhang , Pengcheng Wang , Jayoung Lee , Subrata Mitra , Somali Chaterji , Yin Li , Saurabh Bagchi

We propose a template matching method for the detection of 2D image objects that are characterized by orientation patterns. Our method is based on data representations via orientation scores, which are functions on the space of positions…

Computer Vision and Pattern Recognition · Computer Science 2017-03-10 Erik J. Bekkers , Marco Loog , Bart M. ter Haar Romeny , Remco Duits

Rotation detection is a challenging task due to the difficulties of locating the multi-angle objects and separating them effectively from the background. Though considerable progress has been made, for practical settings, there still exist…

Computer Vision and Pattern Recognition · Computer Science 2020-12-09 Xue Yang , Junchi Yan , Ziming Feng , Tao He

Object identification is one of the most fundamental and difficult issues in computer vision. It aims to discover object instances in real pictures from a huge number of established categories. In recent years, deep learning-based object…

Computer Vision and Pattern Recognition · Computer Science 2022-03-03 Venkata Beri

As a fundamental problem in computer vision, 3D object detection is experiencing rapid growth. To extract the point-wise features from the irregularly and sparsely distributed points, previous methods usually take a feature grouping module…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 Haiyang Wang , Shaoshuai Shi , Ze Yang , Rongyao Fang , Qi Qian , Hongsheng Li , Bernt Schiele , Liwei Wang

Semantic segmentation is an important branch of image processing and computer vision. With the popularity of deep learning, various convolutional neural networks have been proposed for pixel-level classification and segmentation tasks. In…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Xinyu Xu , Huazhen Liu , Tao Zhang , Huilin Xiong , Wenxian Yu

In spite of the recent progresses on classifying 3D point cloud with deep CNNs, large geometric transformations like rotation and translation remain challenging problem and harm the final classification performance. To address this…

Computer Vision and Pattern Recognition · Computer Science 2019-12-24 Mingye Xu , Zhipeng Zhou , Yu Qiao

Deep neural networks face many problems in the field of hyperspectral image classification, lack of effective utilization of spatial spectral information, gradient disappearance and overfitting as the model depth increases. In order to…

Computer Vision and Pattern Recognition · Computer Science 2023-07-14 Guandong Li

Recently, biological perception has been a powerful tool for handling the camouflaged object detection (COD) task. However, most existing methods are heavily dependent on the local spatial information of diverse scales from convolutional…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Yanguang Sun , Hanyu Xuan , Jian Yang , Lei Luo

Equivariant neural networks exploit underlying task symmetries to improve generalization, but strict equivariance constraints can induce more complex optimization dynamics that can hinder learning. Prior work addresses these limitations by…

Machine Learning · Computer Science 2026-02-24 Stefanos Pertigkiozoglou , Mircea Petrache , Shubhendu Trivedi , Kostas Daniilidis