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We present a novel sparse modeling approach to non-rigid shape matching using only the ability to detect repeatable regions. As the input to our algorithm, we are given only two sets of regions in two shapes; no descriptors are provided so…

Graphics · Computer Science 2012-10-01 J. Pokrass , A. M. Bronstein , M. M. Bronstein , P. Sprechmann , G. Sapiro

Many machine learning tasks require finding per-part correspondences between objects. In this work we focus on low-level correspondences - a highly ambiguous matching problem. We propose to use a hierarchical semantic representation of the…

Computer Vision and Pattern Recognition · Computer Science 2017-11-07 Nikolay Savinov , Lubor Ladicky , Marc Pollefeys

This letter presents a novel method to estimate the relative poses between RGB-D cameras with minimal overlapping fields of view in a panoramic RGB-D camera system. This calibration problem is relevant to applications such as indoor 3D…

Image and Video Processing · Electrical Eng. & Systems 2018-09-11 Hang Liu , Hengyu Li , Xiahua Liu , Jun Luo , Shaorong Xie , Yu Sun

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

Understanding user interface (UI) functionality is a useful yet challenging task for both machines and people. In this paper, we investigate a machine learning approach for screen correspondence, which allows reasoning about UIs by mapping…

Human-Computer Interaction · Computer Science 2023-01-23 Jason Wu , Amanda Swearngin , Xiaoyi Zhang , Jeffrey Nichols , Jeffrey P. Bigham

Multimodal language models (MLLMs) are increasingly being applied in real-world environments, necessitating their ability to interpret 3D spaces and comprehend temporal dynamics. Current methods often rely on specialized architectural…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Benlin Liu , Yuhao Dong , Yiqin Wang , Zixian Ma , Yansong Tang , Luming Tang , Yongming Rao , Wei-Chiu Ma , Ranjay Krishna

Learnable keypoint detectors and descriptors are beginning to outperform classical hand-crafted feature extraction methods. Recent studies on self-supervised learning of visual representations have driven the increasing performance of…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Henrique Siqueira , Patrick Ruhkamp , Ibrahim Halfaoui , Markus Karmann , Onay Urfalioglu

Stereo rectification is the determination of two image transformations (or homographies) that map corresponding points on the two images, projections of the same point in the 3D space, onto the same horizontal line in the transformed…

Computer Vision and Pattern Recognition · Computer Science 2022-03-03 Pasquale Lafiosca , Marta Ceccaroni

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

Most approaches to large-scale image retrieval are based on the construction of the inverted index of local image descriptors or visual words. A search in such an index usually results in a large number of candidates. This list of…

Computer Vision and Pattern Recognition · Computer Science 2016-03-22 Sergei Fedorov , Olga Kacher

The objective of this paper is to learn dense 3D shape correspondence for topology-varying generic objects in an unsupervised manner. Conventional implicit functions estimate the occupancy of a 3D point given a shape latent code. Instead,…

Computer Vision and Pattern Recognition · Computer Science 2023-01-02 Feng Liu , Xiaoming Liu

We consider the problem of establishing dense correspondences within a set of related shapes of strongly varying geometry. For such input, traditional shape matching approaches often produce unsatisfactory results. We propose an ensemble…

Graphics · Computer Science 2017-10-10 Oliver Burghard , Alexander Berner , Michael Wand , Niloy Mitra , Hans-Peter Seidel , Reinhard Klein

Establishing visual correspondence across images is a challenging and essential task. Recently, an influx of self-supervised methods have been proposed to better learn representations for visual correspondence. However, we find that these…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Yingdong Hu , Renhao Wang , Kaifeng Zhang , Yang Gao

We investigate composed image retrieval with text feedback. Users gradually look for the target of interest by moving from coarse to fine-grained feedback. However, existing methods merely focus on the latter, i.e., fine-grained search, by…

Computer Vision and Pattern Recognition · Computer Science 2024-01-31 Yiyang Chen , Zhedong Zheng , Wei Ji , Leigang Qu , Tat-Seng Chua

Visual correspondence is a crucial step in key computer vision tasks, including camera localization, image registration, and structure from motion. The most effective techniques for matching keypoints currently involve using learned sparse…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Felipe Cadar , Guilherme Potje , Renato Martins , Cédric Demonceaux , Erickson R. Nascimento

In this paper, we present a novel deep metric learning method to tackle the multi-label image classification problem. In order to better learn the correlations among images features, as well as labels, we attempt to explore a latent space,…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Changsheng Li , Chong Liu , Lixin Duan , Peng Gao , Kai Zheng

Estimating the 6-DoF pose of a rigid object from a single RGB image is a crucial yet challenging task. Recent studies have shown the great potential of dense correspondence-based solutions, yet improvements are still needed to reach…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Ruyi Lian , Haibin Ling

Although shape correspondence is a central problem in geometry processing, most methods for this task apply only to two-dimensional surfaces. The neglected task of volumetric correspondence--a natural extension relevant to shapes extracted…

Graphics · Computer Science 2022-11-29 S. Mazdak Abulnaga , Oded Stein , Polina Golland , Justin Solomon

We address the problem of distributed matching of features in networks with vision systems. Every camera in the network has limited communication capabilities and can only exchange local matches with its neighbors. We propose a distributed…

Computer Vision and Pattern Recognition · Computer Science 2012-04-12 Eduardo Montijano , Rosario Aragues , Carlos Sagues

This paper introduces a novel approach to the fine alignment of images in a burst captured by a handheld camera. In contrast to traditional techniques that estimate two-dimensional transformations between frame pairs or rely on discrete…

Computer Vision and Pattern Recognition · Computer Science 2023-12-11 Bruno Lecouat , Yann Dubois de Mont-Marin , Théo Bodrito , Julien Mairal , Jean Ponce
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