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Understanding point clouds is of great importance. Many previous methods focus on detecting salient keypoints to identity structures of point clouds. However, existing methods neglect the semantics of points selected, leading to poor…

Computer Vision and Pattern Recognition · Computer Science 2020-08-12 Ruoxi Shi , Zhengrong Xue , Xinyang Li

In the realm of point cloud scene understanding, particularly in indoor scenes, objects are arranged following human habits, resulting in objects of certain semantics being closely positioned and displaying notable inter-object…

Computer Vision and Pattern Recognition · Computer Science 2024-04-12 Yanhao Wu , Tong Zhang , Wei Ke , Congpei Qiu , Sabine Susstrunk , Mathieu Salzmann

Exploring the semantic context in scene images is essential for indoor scene recognition. However, due to the diverse intra-class spatial layouts and the coexisting inter-class objects, modeling contextual relationships to adapt various…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Chuanxin Song , Hanbo Wu , Xin Ma

Recent progress in self-supervised representation learning has resulted in models that are capable of extracting image features that are not only effective at encoding image level, but also pixel-level, semantics. These features have been…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Octave Mariotti , Oisin Mac Aodha , Hakan Bilen

Establishing visual correspondences under large intra-class variations, which is often referred to as semantic correspondence or semantic matching, remains a challenging problem in computer vision. Despite its significance, however, most of…

Computer Vision and Pattern Recognition · Computer Science 2019-08-29 Juhong Min , Jongmin Lee , Jean Ponce , Minsu Cho

In recent years, weakly supervised object detection (WSOD) has attracted much attention due to its low labeling cost. The success of recent WSOD models is often ascribed to the two-stage multi-class classification (MCC) task, i.e., multiple…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Yufei Yin , Lechao Cheng , Wengang Zhou , Jiajun Deng , Zhou Yu , Houqiang Li

We present a self-supervised learning (SSL) method suitable for semi-global tasks such as object detection and semantic segmentation. We enforce local consistency between self-learned features, representing corresponding image locations of…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Ashraful Islam , Ben Lundell , Harpreet Sawhney , Sudipta Sinha , Peter Morales , Richard J. Radke

The measure between heterogeneous data is still an open problem. Many research works have been developed to learn a common subspace where the similarity between different modalities can be calculated directly. However, most of existing…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 Jun Yu , Xiao-Jun Wu

Self-supervised learning has been widely used to obtain transferrable representations from unlabeled images. Especially, recent contrastive learning methods have shown impressive performances on downstream image classification tasks. While…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Byungseok Roh , Wuhyun Shin , Ildoo Kim , Sungwoong Kim

3D contrastive representation learning has exhibited remarkable efficacy across various downstream tasks. However, existing contrastive learning paradigms based on cosine similarity fail to deeply explore the potential intra-modal…

Computer Vision and Pattern Recognition · Computer Science 2024-09-25 Naiwen Hu , Haozhe Cheng , Yifan Xie , Pengcheng Shi , Jihua Zhu

Recent studies show that leveraging the match-wise relationships within the 4D correlation map yields significant improvements in establishing semantic correspondences - but at the cost of increased computation and latency. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2023-11-09 Seungwook Kim , Juhong Min , Minsu Cho

In this paper, we introduce a contrastive learning framework for keypoint detection (CoKe). Keypoint detection differs from other visual tasks where contrastive learning has been applied because the input is a set of images in which…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Yutong Bai , Angtian Wang , Adam Kortylewski , Alan Yuille

Recent advancements in deep learning have greatly enhanced 3D object recognition, but most models are limited to closed-set scenarios, unable to handle unknown samples in real-world applications. Open-set recognition (OSR) addresses this…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Jinfeng Xu , Xianzhi Li , Yuan Tang , Xu Han , Qiao Yu , Yixue Hao , Long Hu , Min Chen

The small objects in images and videos are usually not independent individuals. Instead, they more or less present some semantic and spatial layout relationships with each other. Modeling and inferring such intrinsic relationships can…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Kui Fu , Jia Li , Lin Ma , Kai Mu , Yonghong Tian

Recently, many methods have been proposed for object detection. They cannot detect objects by semantic features, adaptively. In this work, according to channel and spatial attention mechanisms, we mainly analyze that different methods…

Computer Vision and Pattern Recognition · Computer Science 2020-09-30 Qian Li , Nan Guo , Xiaochun Ye , Dongrui Fan , Zhimin Tang

Stroke classification remains challenging due to variations in writing style, ambiguous content, and dynamic writing positions. The core challenge in stroke classification is modeling the semantic relationships between strokes. Our…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Yiheng Huang , Shuang She , Zewei Wei , Jianmin Lin , Ming Yang , Wenyin Liu

This paper studies referring video object segmentation (RVOS) by boosting video-level visual-linguistic alignment. Recent approaches model the RVOS task as a sequence prediction problem and perform multi-modal interaction as well as…

Computer Vision and Pattern Recognition · Computer Science 2023-05-29 Zhuoyan Luo , Yicheng Xiao , Yong Liu , Shuyan Li , Yitong Wang , Yansong Tang , Xiu Li , Yujiu Yang

Visual grouping -- operationalized through tasks such as instance segmentation, visual grounding, and object detection -- enables applications ranging from robotic perception to photo editing. These fundamental problems in computer vision…

Computer Vision and Pattern Recognition · Computer Science 2026-01-28 Weikai Huang , Jieyu Zhang , Taoyang Jia , Chenhao Zheng , Ziqi Gao , Jae Sung Park , Winson Han , Ranjay Krishna

A key human ability is to decompose a scene into distinct objects and use their relationships to understand the environment. Object-centric learning aims to mimic this process in an unsupervised manner. Recently, the slot attention-based…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Pinzhuo Tian , Shengjie Yang , Hang Yu , Alex C. Kot

Human keypoint detection from a single image is very challenging due to occlusion, blur, illumination and scale variance. In this paper, we address this problem from three aspects by devising an efficient network structure, proposing three…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Jing Zhang , Zhe Chen , Dacheng Tao