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The goal of person search is to localize and match query persons from scene images. For high efficiency, one-step methods have been developed to jointly handle the pedestrian detection and identification sub-tasks using a single network.…

Computer Vision and Pattern Recognition · Computer Science 2021-02-23 Chuchu Han , Zhedong Zheng , Changxin Gao , Nong Sang , Yi Yang

We present an integrated framework for using Convolutional Networks for classification, localization and detection. We show how a multiscale and sliding window approach can be efficiently implemented within a ConvNet. We also introduce a…

Computer Vision and Pattern Recognition · Computer Science 2014-02-25 Pierre Sermanet , David Eigen , Xiang Zhang , Michael Mathieu , Rob Fergus , Yann LeCun

The scalability problem caused by the difficulty in annotating Person Re-identification(Re-ID) datasets has become a crucial bottleneck in the development of Re-ID.To address this problem, many unsupervised Re-ID methods have recently been…

Computer Vision and Pattern Recognition · Computer Science 2019-11-01 Zhirui Chen , Jianheng Li , Wei-Shi Zheng

Local feature extraction remains an active research area due to the advances in fields such as SLAM, 3D reconstructions, or AR applications. The success in these applications relies on the performance of the feature detector and descriptor.…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Axel Barroso-Laguna , Yannick Verdie , Benjamin Busam , Krystian Mikolajczyk

In this work, we present a novel learning-based framework that combines the local accuracy of contrastive learning with the global consistency of geometric approaches, for robust non-rigid matching. We first observe that while contrastive…

Computer Vision and Pattern Recognition · Computer Science 2022-09-19 Lei Li , Souhaib Attaiki , Maks Ovsjanikov

This paper proposes a novel approach to person re-identification, a fundamental task in distributed multi-camera surveillance systems. Although a variety of powerful algorithms have been presented in the past few years, most of them usually…

Computer Vision and Pattern Recognition · Computer Science 2016-05-04 Shi-Zhe Chen , Chun-Chao Guo , Jian-Huang Lai

Our paper addresses the problem of models struggling to learn diverse features, due to either forgetting previously learned features or failing to learn new ones. To overcome this problem, we introduce Diverse Feature Learning (DFL), a…

Artificial Intelligence · Computer Science 2024-04-01 Sejik Park

This work focuses on mitigating two limitations in the joint learning of local feature detectors and descriptors. First, the ability to estimate the local shape (scale, orientation, etc.) of feature points is often neglected during dense…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Zixin Luo , Lei Zhou , Xuyang Bai , Hongkai Chen , Jiahui Zhang , Yao Yao , Shiwei Li , Tian Fang , Long Quan

Learning feature detection has been largely an unexplored area when compared to handcrafted feature detection. Recent learning formulations use the covariant constraint in their loss function to learn covariant detectors. However, just…

Computer Vision and Pattern Recognition · Computer Science 2018-11-04 Nehal Doiphode , Rahul Mitra , Shuaib Ahmed , Arjun Jain

Recent advances in end-to-end unsupervised learning has significantly improved the performance of monocular depth prediction and alleviated the requirement of ground truth depth. Although a plethora of work has been done in enforcing…

Computer Vision and Pattern Recognition · Computer Science 2020-05-19 Vinay Kaushik , Brejesh Lall

Existing self-supervised learning methods learn representation by means of pretext tasks which are either (1) discriminating that explicitly specify which features should be separated or (2) aligning that precisely indicate which features…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Anjan Dutta , Massimiliano Mancini , Zeynep Akata

Current medical image classification efforts mainly aim for higher average performance, often neglecting the balance between different classes. This can lead to significant differences in recognition accuracy between classes and obvious…

Image and Video Processing · Electrical Eng. & Systems 2024-06-26 Peng Huang , Shu Hu , Bo Peng , Jiashu Zhang , Xi Wu , Xin Wang

Despite achieving state-of-the-art performance, deep learning methods generally require a large amount of labeled data during training and may suffer from overfitting when the sample size is small. To ensure good generalizability of deep…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Xiaoxu Li , Liyun Yu , Xiaochen Yang , Zhanyu Ma , Jing-Hao Xue , Jie Cao , Jun Guo

We present a novel local-global feature fusion framework for body-weight exercise recognition with floor-based dynamic pressure maps. One step further from the existing studies using deep neural networks mainly focusing on global feature…

Computer Vision and Pattern Recognition · Computer Science 2023-09-15 Davinder Pal Singh , Lala Shakti Swarup Ray , Bo Zhou , Sungho Suh , Paul Lukowicz

Keypoint detection and description is fundamental yet important in many vision applications. Most existing methods use detect-then-describe or detect-and-describe strategy to learn local features without considering their context…

Computer Vision and Pattern Recognition · Computer Science 2020-06-02 Siyu Hong , Kunhong Li , Yongcong Zhang , Zhiheng Fu , Mengyi Liu , Yulan Guo

A unified self-supervised and supervised deep learning framework for PET image reconstruction is presented, including deep-learned filtered backprojection (DL-FBP) for sinograms, deep-learned backproject then filter (DL-BPF) for…

Image and Video Processing · Electrical Eng. & Systems 2023-02-28 Andrew J. Reader

Sparse local feature extraction is usually believed to be of important significance in typical vision tasks such as simultaneous localization and mapping, image matching and 3D reconstruction. At present, it still has some deficiencies…

Computer Vision and Pattern Recognition · Computer Science 2025-08-18 Jiayuan Sun , Jiewen Zhu , Luping Ji

Person re-identification aims at establishing the identity of a pedestrian from a gallery that contains images of multiple people obtained from a multi-camera system. Many challenges such as occlusions, drastic lighting and pose variations…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Guodong Ding , Salman Khan , Zhenmin Tang , Fatih Porikli

Face detection in unrestricted conditions has been a trouble for years due to various expressions, brightness, and coloration fringing. Recent studies show that deep learning knowledge of strategies can acquire spectacular performance…

Computer Vision and Pattern Recognition · Computer Science 2022-02-15 Sameer Aqib Hashmi

Object detection is a fundamental task for robots to operate in unstructured environments. Today, there are several deep learning algorithms that solve this task with remarkable performance. Unfortunately, training such systems requires…

Computer Vision and Pattern Recognition · Computer Science 2021-06-30 Federico Ceola , Elisa Maiettini , Giulia Pasquale , Lorenzo Rosasco , Lorenzo Natale