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Recent medical image reconstruction techniques focus on generating high-quality medical images suitable for clinical use at the lowest possible cost and with the fewest possible adverse effects on patients. Recent works have shown…

Image and Video Processing · Electrical Eng. & Systems 2025-01-07 Shijun Liang , Anish Lahiri , Saiprasad Ravishankar

Sparse annotation poses persistent challenges to training dense retrieval models; for example, it distorts the training signal when unlabeled relevant documents are used spuriously as negatives in contrastive learning. To alleviate this…

Information Retrieval · Computer Science 2023-10-24 George Zerveas , Navid Rekabsaz , Carsten Eickhoff

Person re-identification has attracted many researchers' attention for its wide application, but it is still a very challenging task because only part of the image information can be used for personnel matching. Most of current methods uses…

Computer Vision and Pattern Recognition · Computer Science 2019-12-30 Zhiguang Zhang

Person search aims to localize and identify a specific person from a gallery of images. Recent methods can be categorized into two groups, i.e., two-step and end-to-end approaches. The former views person search as two independent tasks and…

Computer Vision and Pattern Recognition · Computer Science 2020-12-22 Xinyu Zhang , Xinlong Wang , Jia-Wang Bian , Chunhua Shen , Mingyu You

Person re-identification aims at finding a person of interest in an image gallery by comparing the probe image of this person with all the gallery images. It is generally treated as a retrieval problem, where the affinities between the…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Yantao Shen , Hongsheng Li , Tong Xiao , Shuai Yi , Dapeng Chen , Xiaogang Wang

In content-based image retrieval, the first-round retrieval result by simple visual feature comparison may be unsatisfactory, which can be refined by visual re-ranking techniques. In image retrieval, it is observed that the contextual…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Jianbo Ouyang , Hui Wu , Min Wang , Wengang Zhou , Houqiang Li

Pavement Distress Recognition (PDR) is an important step in pavement inspection and can be powered by image-based automation to expedite the process and reduce labor costs. Pavement images are often in high-resolution with a low ratio of…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Rong Qin , Luwen Huangfu , Devon Hood , James Ma , Sheng Huang

The task of person re-identification (ReID) is to match images of the same person over multiple non-overlapping camera views. Due to the variations in visual factors, previous works have investigated how the person identity, body parts, and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Binh X. Nguyen , Binh D. Nguyen , Tuong Do , Erman Tjiputra , Quang D. Tran , Anh Nguyen

Person Search is designed to jointly solve the problems of Person Detection and Person Re-identification (Re-ID), in which the target person will be located in a large number of uncut images. Over the past few years, Person Search based on…

Computer Vision and Pattern Recognition · Computer Science 2021-04-21 Lequan Chen , Wei Xie , Zhigang Tu , Jinglei Guo , Yaping Tao , Xinming Wang

Person re-identification (Re-ID) is a crucial task in computer vision, aiming to recognize individuals across non-overlapping camera views. While recent advanced vision-language models (VLMs) excel in logical reasoning and multi-task…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Ke Niu , Haiyang Yu , Mengyang Zhao , Teng Fu , Siyang Yi , Wei Lu , Bin Li , Xuelin Qian , Xiangyang Xue

Person re-identification (Re-ID) aims to match person images across non-overlapping camera views. The majority of Re-ID methods focus on small-scale surveillance systems in which each pedestrian is captured in different camera views of…

Computer Vision and Pattern Recognition · Computer Science 2021-07-30 Wenhang Ge , Chunyan Pan , Ancong Wu , Hongwei Zheng , Wei-Shi Zheng

People live in a 3D world. However, existing works on person re-identification (re-id) mostly consider the semantic representation learning in a 2D space, intrinsically limiting the understanding of people. In this work, we address this…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 Zhedong Zheng , Nenggan Zheng , Yi Yang

Person re-identification is challenging due to the large variations of pose, illumination, occlusion and camera view. Owing to these variations, the pedestrian data is distributed as highly-curved manifolds in the feature space, despite the…

Computer Vision and Pattern Recognition · Computer Science 2016-11-02 Hailin Shi , Yang Yang , Xiangyu Zhu , Shengcai Liao , Zhen Lei , Weishi Zheng , Stan Z. Li

Crowd counting based on density maps is generally regarded as a regression task.Deep learning is used to learn the mapping between image content and crowd density distribution. Although great success has been achieved, some pedestrians far…

Computer Vision and Pattern Recognition · Computer Science 2022-04-18 Jiwei Chen , Kewei Wang , Wen Su , Zengfu Wang

Person re-identification (person Re-Id) aims to retrieve the pedestrian images of a same person that captured by disjoint and non-overlapping cameras. Lots of researchers recently focuse on this hot issue and propose deep learning based…

Computer Vision and Pattern Recognition · Computer Science 2019-06-06 Chengyuan Zhang , Lei Zhu , Shichao Zhang

In this work, we propose new objective functions to train deep neural network based density ratio estimators and apply it to a change point detection problem. Existing methods use linear combinations of kernels to approximate the density…

Machine Learning · Computer Science 2019-05-27 Haidar Khan , Lara Marcuse , Bülent Yener

As a long-standing problem in computer vision, face detection has attracted much attention in recent decades for its practical applications. With the availability of face detection benchmark WIDER FACE dataset, much of the progresses have…

Computer Vision and Pattern Recognition · Computer Science 2019-01-31 Shifeng Zhang , Rui Zhu , Xiaobo Wang , Hailin Shi , Tianyu Fu , Shuo Wang , Tao Mei , Stan Z. Li

Retrieving the most similar objects in a large-scale database for a given query is a fundamental building block in many application domains, ranging from web searches, visual, cross media, and document retrievals. State-of-the-art…

Machine Learning · Computer Science 2018-03-15 Muge Li , Liangyue Li , Feiping Nie

Kernel density estimation is a popular method for estimating unseen probability distributions. However, the convergence of these classical estimators to the true density slows down in high dimensions. Moreover, they do not define meaningful…

Statistics Theory · Mathematics 2025-05-30 Jack Kendrick

An ongoing major challenge in computer vision is the task of person re-identification, where the goal is to match individuals across different, non-overlapping camera views. While recent success has been achieved via supervised learning…

Computer Vision and Pattern Recognition · Computer Science 2020-01-15 Devinder Kumar , Parthipan Siva , Paul Marchwica , Alexander Wong
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