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Image retrieval is the problem of searching an image database for items that are similar to a query image. To address this task, two main types of image representations have been studied: global and local image features. In this work, our…

Computer Vision and Pattern Recognition · Computer Science 2020-09-17 Bingyi Cao , Andre Araujo , Jack Sim

Convolutional Neural Network (CNN) is a very powerful approach to extract discriminative local descriptors for effective image search. Recent work adopts fine-tuned strategies to further improve the discriminative power of the descriptors.…

Computer Vision and Pattern Recognition · Computer Science 2017-11-28 Tuan Hoang , Thanh-Toan Do , Dang-Khoa Le Tan , Ngai-Man Cheung

Recent years have witnessed a substantial increase in the deep learning (DL)architectures proposed for visual recognition tasks like person re-identification,where individuals must be recognized over multiple distributed cameras.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-15 Hugo Masson , Amran Bhuiyan , Le Thanh Nguyen-Meidine , Mehrsan Javan , Parthipan Siva , Ismail Ben Ayed , Eric Granger

Re-ranking is the second stage of a visual place recognition task, in which the system chooses the best-matching images from a pre-selected subset of candidates. Model-free approaches compute the image pair similarity based on a spatial…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Tomáš Pivoňka , Libor Přeučil

Custom and natural lighting conditions can be emulated in images of the scene during post-editing. Extraordinary capabilities of the deep learning framework can be utilized for such purpose. Deep image relighting allows automatic photo…

Computer Vision and Pattern Recognition · Computer Science 2021-06-17 Sourya Dipta Das , Nisarg A. Shah , Saikat Dutta , Himanshu Kumar

In image retrieval, deep local features learned in a data-driven manner have been demonstrated effective to improve retrieval performance. To realize efficient retrieval on large image database, some approaches quantize deep local features…

Image and Video Processing · Electrical Eng. & Systems 2021-12-14 Hui Wu , Min Wang , Wengang Zhou , Yang Hu , Houqiang Li

Deep unfolding networks (DUNs), combining conventional iterative optimization algorithms and deep neural networks into a multi-stage framework, have achieved remarkable accomplishments in Image Restoration (IR), such as spectral imaging…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Xiangming Wang , Haijin Zeng , Benteng Sun , Jiezhang Cao , Kai Zhang , Qiangqiang Shen , Yongyong Chen

Convolutional neural network has recently achieved great success for image restoration (IR) and also offered hierarchical features. However, most deep CNN based IR models do not make full use of the hierarchical features from the original…

Computer Vision and Pattern Recognition · Computer Science 2020-01-24 Yulun Zhang , Yapeng Tian , Yu Kong , Bineng Zhong , Yun Fu

Learning generic and robust feature representations with data from multiple domains for the same problem is of great value, especially for the problems that have multiple datasets but none of them are large enough to provide abundant data…

Computer Vision and Pattern Recognition · Computer Science 2016-04-27 Tong Xiao , Hongsheng Li , Wanli Ouyang , Xiaogang Wang

Visual retrieval tasks such as image retrieval and person re-identification (Re-ID) aim at effectively and thoroughly searching images with similar content or the same identity. After obtaining retrieved examples, re-ranking is a widely…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Yuqi Zhang , Qi Qian , Hongsong Wang , Chong Liu , Weihua Chen , Fan Wang

Visual place recognition is the task of recognizing same places of query images in a set of database images, despite potential condition changes due to time of day, weather or seasons. It is important for loop closure detection in SLAM and…

Computer Vision and Pattern Recognition · Computer Science 2021-10-26 Stefan Schubert , Peer Neubert , Peter Protzel

Harvesting dense pixel-level annotations to train deep neural networks for semantic segmentation is extremely expensive and unwieldy at scale. While learning from synthetic data where labels are readily available sounds promising,…

Computer Vision and Pattern Recognition · Computer Science 2018-04-17 Zuxuan Wu , Xintong Han , Yen-Liang Lin , Mustafa Gkhan Uzunbas , Tom Goldstein , Ser Nam Lim , Larry S. Davis

Registration is the process that computes the transformation that aligns sets of data. Commonly, a registration process can be divided into four main steps: target selection, feature extraction, feature matching, and transform computation…

Computer Vision and Pattern Recognition · Computer Science 2020-10-29 Victor Villena-Martinez , Sergiu Oprea , Marcelo Saval-Calvo , Jorge Azorin-Lopez , Andres Fuster-Guillo , Robert B. Fisher

In this paper, we make the very first attempt to investigate the integration of deep hash learning with vehicle re-identification. We propose a deep hash-based vehicle re-identification framework, dubbed DVHN, which substantially reduces…

Computer Vision and Pattern Recognition · Computer Science 2021-12-10 Yongbiao Chen , Sheng Zhang , Fangxin Liu , Chenggang Wu , Kaicheng Guo , Zhengwei Qi

As re-ranking is a necessary procedure to boost person re-identification (re-ID) performance on large-scale datasets, the diversity of feature becomes crucial to person reID for its importance both on designing pedestrian descriptions and…

Computer Vision and Pattern Recognition · Computer Science 2017-08-15 Rui Yu , Zhichao Zhou , Song Bai , Xiang Bai

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

Given an existing trained neural network, it is often desirable to learn new capabilities without hindering performance of those already learned. Existing approaches either learn sub-optimal solutions, require joint training, or incur a…

Computer Vision and Pattern Recognition · Computer Science 2018-02-15 Amir Rosenfeld , John K. Tsotsos

Miniaturized autonomous unmanned aerial vehicles (UAVs) are gaining popularity due to their small size, enabling new tasks such as indoor navigation or people monitoring. Nonetheless, their size and simple electronics pose severe challenges…

Computer Vision and Pattern Recognition · Computer Science 2024-02-26 Matteo Risso , Francesco Daghero , Beatrice Alessandra Motetti , Daniele Jahier Pagliari , Enrico Macii , Massimo Poncino , Alessio Burrello

The main focus of this work is a novel framework for the joint reconstruction and segmentation of parallel MRI (PMRI) brain data. We introduce an image domain deep network for calibrationless recovery of undersampled PMRI data. The proposed…

Image and Video Processing · Electrical Eng. & Systems 2021-02-03 Aniket Pramanik , Mathews Jacob

A retinal trait, or phenotype, summarises a specific aspect of a retinal image in a single number. This can then be used for further analyses, e.g. with statistical methods. However, reducing an aspect of a complex image to a single,…

Quantitative Methods · Quantitative Biology 2022-07-14 Justin Engelmann , Ana Villaplana-Velasco , Amos Storkey , Miguel O. Bernabeu