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Finding correspondences between semantically similar points across images and object instances is one of the everlasting challenges in computer vision. While large pre-trained vision models have recently been demonstrated as effective…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Olaf Dünkel , Thomas Wimmer , Christian Theobalt , Christian Rupprecht , Adam Kortylewski

Superpixels have become very popular in many computer vision applications. Nevertheless, they remain underexploited since the superpixel decomposition may produce irregular and non stable segmentation results due to the dependency to the…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Rémi Giraud , Vinh-Thong Ta , Aurélie Bugeau , Pierrick Coupé , Nicolas Papadakis

Semantic segmentation of point cloud usually relies on dense annotation that is exhausting and costly, so it attracts wide attention to investigate solutions for the weakly supervised scheme with only sparse points annotated. Existing works…

Computer Vision and Pattern Recognition · Computer Science 2023-12-11 Yushuang Wu , Zizheng Yan , Shengcai Cai , Guanbin Li , Yizhou Yu , Xiaoguang Han , Shuguang Cui

Dense correspondence across semantically related images has been extensively studied, but still faces two challenges: 1) large variations in appearance, scale and pose exist even for objects from the same category, and 2) labeling…

Computer Vision and Pattern Recognition · Computer Science 2022-03-11 Taihong Xiao , Sifei Liu , Shalini De Mello , Zhiding Yu , Jan Kautz , Ming-Hsuan Yang

In this paper, we address the challenge of matching semantically similar keypoints across image pairs. Existing research indicates that the intermediate output of the UNet within the Stable Diffusion (SD) can serve as robust image feature…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Xinghui Li , Jingyi Lu , Kai Han , Victor Prisacariu

While pre-trained large-scale vision models have shown significant promise for semantic correspondence, their features often struggle to grasp the geometry and orientation of instances. This paper identifies the importance of being…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Junyi Zhang , Charles Herrmann , Junhwa Hur , Eric Chen , Varun Jampani , Deqing Sun , Ming-Hsuan Yang

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

Semantic matching is a mainstream paradigm of zero-shot relation extraction, which matches a given input with a corresponding label description. The entities in the input should exactly match their hypernyms in the description, while the…

Computation and Language · Computer Science 2023-06-09 Jun Zhao , Wenyu Zhan , Xin Zhao , Qi Zhang , Tao Gui , Zhongyu Wei , Junzhe Wang , Minlong Peng , Mingming Sun

Recent advances in image-level self-supervised learning (SSL) have made significant progress, yet learning dense representations for patches remains challenging. Mainstream methods encounter an over-dispersion phenomenon that patches from…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Peisong Wen , Qianqian Xu , Siran Dai , Runmin Cong , Qingming Huang

Accurate and stable feature matching is critical for computer vision tasks, particularly in applications such as Simultaneous Localization and Mapping (SLAM). While recent learning-based feature matching methods have demonstrated promising…

Robotics · Computer Science 2025-04-08 Yuqing Wang , Yan Wang , Hailiang Tang , Xiaoji Niu

Underwater communication is essential for environmental monitoring, marine biology research, and underwater exploration. Traditional underwater communication faces limitations like low bandwidth, high latency, and susceptibility to noise,…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Weilong Chen , Wenxuan Xu , Haoran Chen , Xinran Zhang , Zhijin Qin , Yanru Zhang , Zhu Han

Semantic communications have gained significant attention as a promising approach to address the transmission bottleneck, especially with the continuous development of 6G techniques. Distinct from the well investigated physical channel…

Signal Processing · Electrical Eng. & Systems 2024-03-15 Xiang Peng , Zhijin Qin , Xiaoming Tao , Jianhua Lu , Khaled B. Letaief

This paper presents a new end-to-end semi-supervised framework to learn a dense keypoint detector using unlabeled multiview images. A key challenge lies in finding the exact correspondences between the dense keypoints in multiple views…

Computer Vision and Pattern Recognition · Computer Science 2024-02-21 Zhixuan Yu , Haozheng Yu , Long Sha , Sujoy Ganguly , Hyun Soo Park

Semantic communication enables intelligent agents to extract meaning (or semantics) of information via interaction, to carry out collaborative tasks. In this paper, we study semantic communication from a topological space perspective, in…

Signal Processing · Electrical Eng. & Systems 2022-11-01 Qiyang Zhao , Mehdi Bennis , Merouane Debbah , Daniel Benevides da Costa

Recent Reference-Based image super-resolution (RefSR) has improved SOTA deep methods introducing attention mechanisms to enhance low-resolution images by transferring high-resolution textures from a reference high-resolution image. The main…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Esteban Reyes-Saldana , Mariano Rivera

We introduce point affiliation into feature upsampling, a notion that describes the affiliation of each upsampled point to a semantic cluster formed by local decoder feature points with semantic similarity. By rethinking point affiliation,…

Computer Vision and Pattern Recognition · Computer Science 2022-12-29 Hao Lu , Wenze Liu , Zixuan Ye , Hongtao Fu , Yuliang Liu , Zhiguo Cao

Recent progress in deep learning (DL)-based joint source-channel coding (DeepJSCC) has led to a new paradigm of semantic communications. Two salient features of DeepJSCC-based semantic communications are the exploitation of semantic-aware…

Information Theory · Computer Science 2023-01-02 Yulin Shao , Deniz Gunduz

Learning dense correspondences across deformable 3D shapes remains a long-standing challenge due to structural variability, non-isometric deformation, and inconsistent topology. Existing methods typically trade off generalization, geometric…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Soyeon Yoon , Chang Wook Seo , Hyunjung Shim

Semantic communications could improve the transmission efficiency significantly by exploring the semantic information. In this paper, we make an effort to recover the transmitted speech signals in the semantic communication systems, which…

Signal Processing · Electrical Eng. & Systems 2021-09-09 Zhenzi Weng , Zhijin Qin

Establishing dense semantic correspondences between object instances remains a challenging problem due to background clutter, significant scale and pose differences, and large intra-class variations. In this paper, we address weakly…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Yun-Chun Chen , Po-Hsiang Huang , Li-Yu Yu , Jia-Bin Huang , Ming-Hsuan Yang , Yen-Yu Lin