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Local feature descriptors have been widely used in fine-grained visual object search thanks to their robustness in scale and rotation variation and cluttered background. However, the performance of such descriptors drops under severe…

Computer Vision and Pattern Recognition · Computer Science 2019-01-03 Zhenwei Miao , Kim-Hui Yap , Xudong Jiang , Subbhuraam Sinduja , Zhenhua Wang

Correlation filters are special classifiers designed for shift-invariant object recognition, which are robust to pattern distortions. The recent literature shows that combining a set of sub-filters trained based on a single or a small group…

Computer Vision and Pattern Recognition · Computer Science 2018-02-14 Baochang Zhang , Shangzhen Luan , Chen Chen , Jungong Han , Wei Wang , Alessandro Perina , Ling Shao

Human observers can learn to recognize new categories of images from a handful of examples, yet doing so with artificial ones remains an open challenge. We hypothesize that data-efficient recognition is enabled by representations which make…

Computer Vision and Pattern Recognition · Computer Science 2020-07-02 Olivier J. Hénaff , Aravind Srinivas , Jeffrey De Fauw , Ali Razavi , Carl Doersch , S. M. Ali Eslami , Aaron van den Oord

To simplify the parameter of the deep learning network, a cascaded compressive sensing model "CSNet" is implemented for image classification. Firstly, we use cascaded compressive sensing network to learn feature from the data. Secondly,…

Computer Vision and Pattern Recognition · Computer Science 2014-09-26 Yufei Gan , Tong Zhuo , Chu He

For a multiple-input multiple-output (MIMO) system with unknown channel state information (CSI), a novel low-density parity check (LDPC)-coded transmission (LCT) scheme with joint pilot and data channel estimation is proposed. To fine-tune…

Information Theory · Computer Science 2023-11-14 Binghui Shi , Yongpeng Wu , Peihong Yuan , Derrick Wing Kwan Ng , Xiang-Gen Xia , Wenjun Zhang

As a novel method eliminating chromatic aberration on objects, computational color constancy has becoming a fundamental prerequisite for many computer vision applications. Among algorithms performing this task, the learning-based ones have…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Yilang Zhang , Neal N. Xiong , Zheng Wei , Xin Yuan , Jian Wang

Although automated pathology classification using deep learning (DL) has proved to be predictively efficient, DL methods are found to be data and compute cost intensive. In this work, we aim to reduce DL training costs by pre-training a…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Sohini Roychowdhury , Kwok Sun Tang , Mohith Ashok , Anoop Sanka

There is a neglected fact in the traditional machine learning methods that the data sampling can actually lead to the solution sampling. We consider this observation to be important because having the solution sampling available makes the…

Computer Vision and Pattern Recognition · Computer Science 2017-06-06 Shangzhen Luan , Baochang Zhang , Jungong Han , Chen Chen , Ling Shao , Alessandro Perina , Linlin Shen

The rapid evolution of malware variants requires robust classification methods to enhance cybersecurity. While Large Language Models (LLMs) offer potential for generating malware descriptions to aid family classification, their utility is…

Cryptography and Security · Computer Science 2025-05-01 Ivan Montoya Sanchez , Shaswata Mitra , Aritran Piplai , Sudip Mittal

Low-light image enhancement (LLIE) aims to improve the illuminance of images due to insufficient light exposure. Recently, various lightweight learning-based LLIE methods have been proposed to handle the challenges of unfavorable prevailing…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Yuantong Zhang , Baoxin Teng , Daiqin Yang , Zhenzhong Chen , Haichuan Ma , Gang Li , Wenpeng Ding

Selective classification enables models to make predictions only when they are sufficiently confident, aiming to enhance safety and reliability, which is important in high-stakes scenarios. Previous methods mainly use deep neural networks…

Machine Learning · Computer Science 2024-06-10 Yu-Chang Wu , Shen-Huan Lyu , Haopu Shang , Xiangyu Wang , Chao Qian

Recent advancements in Contrastive Language-Image Pre-training (CLIP) have demonstrated notable success in self-supervised representation learning across various tasks. However, the existing CLIP-like approaches often demand extensive GPU…

Computer Vision and Pattern Recognition · Computer Science 2024-07-31 Yuexi Du , Brian Chang , Nicha C. Dvornek

We tackle the problem of finding accurate and robust keypoint correspondences between images. We propose a learning-based approach to guide local feature matches via a learned approximate image matching. Our approach can boost the results…

Computer Vision and Pattern Recognition · Computer Science 2021-05-03 François Darmon , Mathieu Aubry , Pascal Monasse

Feature description is one of the most frequently studied areas in the expert systems and machine learning. Effective encoding of the images is an essential requirement for accurate matching. These encoding schemes play a significant role…

Computer Vision and Pattern Recognition · Computer Science 2022-01-04 Soumendu Chakraborty , Satish Kumar Singh , Pavan Chakraborty

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

Why has SIFT been so successful? Why its extension, DSP-SIFT, can further improve SIFT? Is there a theory that can explain both? How can such theory benefit real applications? Can it suggest new algorithms with reduced computational…

Computer Vision and Pattern Recognition · Computer Science 2016-01-21 Hossein Mobahi , Stefano Soatto

Recent advances in learned image compression (LIC) have enabled practical deployments, spurring active research into image compression for machines and progressive coding schemes. However, their integration remains under-explored: prior…

Image and Video Processing · Electrical Eng. & Systems 2026-05-12 Jungwoo Kim , Jun-Hyuk Kim , Jong-Seok Lee

This paper presents a novel object tracking method based on approximated Locality-constrained Linear Coding (LLC). Rather than using a non-negativity constraint on encoding coefficients to guarantee these elements nonnegative, in this…

Computer Vision and Pattern Recognition · Computer Science 2015-10-30 Fanghui Liu , Tao Zhou , Irene Y. H. Gu , Jie Yang

Place recognition gives a SLAM system the ability to correct cumulative errors. Unlike images that contain rich texture features, point clouds are almost pure geometric information which makes place recognition based on point clouds…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Lin Li , Xin Kong , Xiangrui Zhao , Tianxin Huang , Yong Liu

High-contrast imaging instruments are now being equipped with integral field spectrographs (IFS) to facilitate the detection and characterization of faint substellar companions. Algorithms currently envisioned to handle IFS data, such as…

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