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Extracting discriminative local features that are invariant to imaging variations is an integral part of establishing correspondences between images. In this work, we introduce a self-supervised learning framework to extract discriminative…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Jongmin Lee , Byungjin Kim , Seungwook Kim , Minsu Cho

Although group convolutional networks are able to learn powerful representations based on symmetry patterns, they lack explicit means to learn meaningful relationships among them (e.g., relative positions and poses). In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2020-07-01 David W. Romero , Erik J. Bekkers , Jakub M. Tomczak , Mark Hoogendoorn

In this paper, we present a novel end-to-end group collaborative learning network, termed GCoNet+, which can effectively and efficiently (250 fps) identify co-salient objects in natural scenes. The proposed GCoNet+ achieves the new…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Peng Zheng , Huazhu Fu , Deng-Ping Fan , Qi Fan , Jie Qin , Yu-Wing Tai , Chi-Keung Tang , Luc Van Gool

Convolutional Neural Networks (CNNs) traditionally encode translation equivariance via the convolution operation. Generalization to other transformations has recently received attraction to encode the knowledge of the data geometry in group…

Computer Vision and Pattern Recognition · Computer Science 2018-10-17 Vincent Andrearczyk , Adrien Depeursinge

Convolutional neural networks (CNNs) are essential tools for computer vision tasks, but they lack traditionally desired properties of extracted features that could further improve model performance, e.g., rotational equivariance. Such…

Computer Vision and Pattern Recognition · Computer Science 2025-01-17 Yuexi Du , Jiazhen Zhang , Tal Zeevi , Nicha C. Dvornek , John A. Onofrey

Despite the successes of deep learning in computer vision, difficulties persist in recognizing objects that have undergone group-symmetric transformations rarely seen during training$\unicode{x2013}$for example objects seen in unusual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Minh Dinh , Stéphane Deny

Existing equivariant neural networks require prior knowledge of the symmetry group and discretization for continuous groups. We propose to work with Lie algebras (infinitesimal generators) instead of Lie groups. Our model, the Lie algebra…

Machine Learning · Computer Science 2021-11-03 Nima Dehmamy , Robin Walters , Yanchen Liu , Dashun Wang , Rose Yu

Convolutional neural networks (CNNs) have been extensively and successfully applied to the task of synthetic aperture radar (SAR) image change detection. However, conventional convolutional layers are inherently limited by their local…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Baogui Huan , Chuanzheng Gong , Dezhong Chen , Feng Gao , Junyu Dong , Qian Du

Objects in aerial images have greater variations in scale and orientation than in typical images, so detection is more difficult. Convolutional neural networks use a variety of frequency- and orientation-specific kernels to identify objects…

Computer Vision and Pattern Recognition · Computer Science 2021-11-08 Guo-Ye Yang , Xiang-Li Li , Ralph R. Martin , Shi-Min Hu

In this paper, we propose deformable deep convolutional neural networks for generic object detection. This new deep learning object detection framework has innovations in multiple aspects. In the proposed new deep architecture, a new…

Computer Vision and Pattern Recognition · Computer Science 2015-06-03 Wanli Ouyang , Xiaogang Wang , Xingyu Zeng , Shi Qiu , Ping Luo , Yonglong Tian , Hongsheng Li , Shuo Yang , Zhe Wang , Chen-Change Loy , Xiaoou Tang

Across a majority of pedestrian detection datasets, it is typically assumed that pedestrians will be standing upright with respect to the image coordinate system. This assumption, however, is not always valid for many vision-equipped mobile…

Computer Vision and Pattern Recognition · Computer Science 2020-11-04 Xinshuo Weng , Shangxuan Wu , Fares Beainy , Kris Kitani

Regular group convolutional neural networks (G-CNNs) have been shown to increase model performance and improve equivariance to different geometrical symmetries. This work addresses the problem of SE(3), i.e., roto-translation equivariance,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-21 Thijs P. Kuipers , Erik J. Bekkers

This paper presents a novel framework combining group equivariant convolutional neural networks (G-CNNs) with equivariant-aware structured pruning to produce compact, transformation-invariant models for resource-constrained environments.…

Computer Vision and Pattern Recognition · Computer Science 2025-11-24 Mohammed Alnemari

3D Convolutional Neural Networks are sensitive to transformations applied to their input. This is a problem because a voxelized version of a 3D object, and its rotated clone, will look unrelated to each other after passing through to the…

Computer Vision and Pattern Recognition · Computer Science 2018-04-13 Daniel Worrall , Gabriel Brostow

Rotation is among the long prevailing, yet still unresolved, hard challenges encountered in visual object tracking. The existing deep learning-based tracking algorithms use regular CNNs that are inherently translation equivariant, but not…

Computer Vision and Pattern Recognition · Computer Science 2020-12-25 Deepak K. Gupta , Devanshu Arya , Efstratios Gavves

Recently diffusion models have shown improvement in synthetic image quality as well as better control in generation. We motivate and present Gen2Det, a simple modular pipeline to create synthetic training data for object detection for free…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Saksham Suri , Fanyi Xiao , Animesh Sinha , Sean Chang Culatana , Raghuraman Krishnamoorthi , Chenchen Zhu , Abhinav Shrivastava

360{\deg} images are usually represented in either equirectangular projection (ERP) or multiple perspective projections. Different from the flat 2D images, the detection task is challenging for 360{\deg} images due to the distortion of ERP…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Pengyu Zhao , Ansheng You , Yuanxing Zhang , Jiaying Liu , Kaigui Bian , Yunhai Tong

Symmetry, where certain features remain invariant under geometric transformations, can often serve as a powerful prior in designing convolutional neural networks (CNNs). While conventional CNNs inherently support translational equivariance,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-04 Yuexi Du , Jiazhen Zhang , Nicha C. Dvornek , John A. Onofrey

Achieving a balance between computational efficiency and detection accuracy in the realm of rotated bounding box object detection within aerial imagery is a significant challenge. While prior research has aimed at creating lightweight…

Computer Vision and Pattern Recognition · Computer Science 2024-12-18 Zhifei Shi , Zongyao Yin , Sheng Chang , Xiao Yi , Xianchuan Yu

With the rapidly increasing demand for oriented object detection (OOD), recent research involving weakly-supervised detectors for learning rotated box (RBox) from the horizontal box (HBox) has attracted more and more attention. In this…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Yi Yu , Xue Yang , Qingyun Li , Feipeng Da , Jifeng Dai , Yu Qiao , Junchi Yan