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Person re-identification (re-id), an emerging problem in visual surveillance, deals with maintaining entities of individuals whilst they traverse various locations surveilled by a camera network. From a visual perspective re-id is…

Computer Vision and Pattern Recognition · Computer Science 2015-05-11 Ziming Zhang , Venkatesh Saligrama

Correspondences estimation or feature matching is a key step in the image-based 3D reconstruction problem. In this paper, we propose two algebraic properties for correspondences. The first is a rank deficient matrix construct from the…

Computational Geometry · Computer Science 2022-05-04 Trung-Kien Le , Ping Li

Binary image based classification and retrieval of documents of an intellectual nature is a very challenging problem. Variations in the binary image generation mechanisms which are subject to the document artisan designer including drawing…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Juan Castorena , Manish Bhattarai , Diane Oyen

The recovery of multi-person 3D poses from a single RGB image is a severely ill-conditioned problem due to the inherent 2D-3D depth ambiguity, inter-person occlusions, and body truncations. To tackle these issues, recent works have shown…

Computer Vision and Pattern Recognition · Computer Science 2022-06-01 Nicolas Ugrinovic , Adria Ruiz , Antonio Agudo , Alberto Sanfeliu , Francesc Moreno-Noguer

Scene coordinate regression has become an essential part of current camera re-localization methods. Different versions, such as regression forests and deep learning methods, have been successfully applied to estimate the corresponding…

Computer Vision and Pattern Recognition · Computer Science 2018-07-27 Mai Bui , Shadi Albarqouni , Slobodan Ilic , Nassir Navab

6D pose estimation is a central problem in robot vision. Compared with pose estimation based on point correspondences or its robust versions, correspondence-free methods are often more flexible. However, existing correspondence-free methods…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Quan Quan , Dun Dai

Depictions of similar human body configurations can vary with changing viewpoints. Using only 2D information, we would like to enable vision algorithms to recognize similarity in human body poses across multiple views. This ability is…

Computer Vision and Pattern Recognition · Computer Science 2020-10-26 Jennifer J. Sun , Jiaping Zhao , Liang-Chieh Chen , Florian Schroff , Hartwig Adam , Ting Liu

In this work, we focus on the task of learning and representing dense correspondences in deformable object categories. While this problem has been considered before, solutions so far have been rather ad-hoc for specific object types (i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2020-11-26 Natalia Neverova , David Novotny , Vasil Khalidov , Marc Szafraniec , Patrick Labatut , Andrea Vedaldi

This paper introduces a modular, non-deep learning method for filtering and refining sparse correspondences in image matching. Assuming that motion flow within the scene can be approximated by local homography transformations, matches are…

Computer Vision and Pattern Recognition · Computer Science 2025-12-24 Fabio Bellavia , Zhenjun Zhao , Luca Morelli , Fabio Remondino

We address the discovery of composition transfer in artworks based on their visual content. Automated analysis of large art collections, which are growing as a result of art digitization among museums and galleries, is an important tool for…

Computer Vision and Pattern Recognition · Computer Science 2019-07-09 Tomas Jenicek , Ondřej Chum

Visual place recognition is a critical task in computer vision, especially for localization and navigation systems. Existing methods often rely on contrastive learning: image descriptors are trained to have small distance for similar images…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 María Leyva-Vallina , Nicola Strisciuglio , Nicolai Petkov

In this paper, we describes a correspondence identification method between two-views of regular RGB camera that can be run in real-time. The basic idea is first applying normalized cross correlation to retrieve a sparse set of matching…

Computer Vision and Pattern Recognition · Computer Science 2017-09-20 Raghavendra Kandukuri

This paper addresses how to construct features for the problem of image correspondence, in particular, the paper addresses how to construct features so as to maintain the right level of invariance versus discriminability. We show that…

Computer Vision and Pattern Recognition · Computer Science 2012-11-21 Ganesh Sundaramoorthi , Yanchao Yang

In this paper we tackle the problem of pose guided person image generation, which aims to transfer a person image from the source pose to a novel target pose while maintaining the source appearance. Given the inefficiency of standard CNNs…

Computer Vision and Pattern Recognition · Computer Science 2021-02-08 Jilin Tang , Yi Yuan , Tianjia Shao , Yong Liu , Mengmeng Wang , Kun Zhou

Reconstructing 3D human shape and pose from monocular images is challenging despite the promising results achieved by the most recent learning-based methods. The commonly occurred misalignment comes from the facts that the mapping from…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Hongwen Zhang , Jie Cao , Guo Lu , Wanli Ouyang , Zhenan Sun

Extracting point correspondences from two or more views of a scene is a fundamental computer vision problem with particular importance for relative camera pose estimation and structure-from-motion. Existing local feature matching…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Dominik A. Kloepfer , João F. Henriques , Dylan Campbell

Like many computer vision problems, human pose estimation is a challenging problem in that recognizing a body part requires not only information from local area but also from areas with large spatial distance. In order to spatially pass…

Computer Vision and Pattern Recognition · Computer Science 2019-04-08 Te Qi , Bayram Bayramli , Usman Ali , Qinchuan Zhang , Hongtao Lu

Learning feature correspondence is a foundational task in computer vision, holding immense importance for downstream applications such as visual odometry and 3D reconstruction. Despite recent progress in data-driven models, feature…

Computer Vision and Pattern Recognition · Computer Science 2025-01-30 Zitong Zhan , Dasong Gao , Yun-Jou Lin , Youjie Xia , Chen Wang

Computer vision has long relied on two kinds of correspondences: pixel correspondences in images and 3D correspondences on object surfaces. Is there another kind, and if there is, what can they do for us? In this paper, we introduce…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Kohei Yamashita , Vincent Lepetit , Ko Nishino

We consider the problem of comparing the similarity of image sets with variable-quantity, quality and un-ordered heterogeneous images. We use feature restructuring to exploit the correlations of both inner$\&$inter-set images. Specifically,…

Computer Vision and Pattern Recognition · Computer Science 2019-08-06 Xiaofeng Liu , Zhenhua Guo , Site Li , Lingsheng Kong , Ping Jia , Jane You , B. V. K. Kumar