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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

Coreset selection is a method for selecting a small, representative subset of an entire dataset. It has been primarily researched in image classification, assuming there is only one object per image. However, coreset selection for object…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Hojun Lee , Suyoung Kim , Junhoo Lee , Jaeyoung Yoo , Nojun Kwak

Generating iris images which look realistic is both an interesting and challenging problem. Most of the classical statistical models are not powerful enough to capture the complicated texture representation in iris images, and therefore…

Computer Vision and Pattern Recognition · Computer Science 2018-12-27 Shervin Minaee , Amirali Abdolrashidi

Fast and invariant feature extraction is crucial in certain computer vision applications where the computation time is constrained in both training and testing phases of the classifier. In this paper, we propose a nature-inspired…

Computer Vision and Pattern Recognition · Computer Science 2019-07-03 Ravimal Bandara , Lochandaka Ranathunga , Nor Aniza Abdullah

Vision transformers are nowadays the de-facto choice for image classification tasks. There are two broad categories of classification tasks, fine-grained and coarse-grained. In fine-grained classification, the necessity is to discover…

Computer Vision and Pattern Recognition · Computer Science 2022-08-31 Mohit Vaishnav , Thomas Fel , Ivań Felipe Rodríguez , Thomas Serre

In this paper, we present a texture aware lightweight deep learning framework for iris recognition. Our contributions are primarily three fold. Firstly, to address the dearth of labelled iris data, we propose a reconstruction loss guided…

Computer Vision and Pattern Recognition · Computer Science 2020-02-24 Manashi Chakraborty , Mayukh Roy , Prabir Kumar Biswas , Pabitra Mitra

Recently, transformer-based methods have achieved promising progresses in object detection, as they can eliminate the post-processes like NMS and enrich the deep representations. However, these methods cannot well cope with scene text due…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Jingqun Tang , Wenqing Zhang , Hongye Liu , MingKun Yang , Bo Jiang , Guanglong Hu , Xiang Bai

Material classification in natural settings is a challenge due to complex interplay of geometry, reflectance properties, and illumination. Previous work on material classification relies strongly on hand-engineered features of visual…

Computer Vision and Pattern Recognition · Computer Science 2016-09-21 Patrick Wieschollek , Hendrik P. A. Lensch

This paper proposes to use Fast Fourier Transformation-based U-Net (a refined fully convolutional networks) and perform image convolution in neural networks. Leveraging the Fast Fourier Transformation, it reduces the image convolution costs…

Computer Vision and Pattern Recognition · Computer Science 2020-10-12 Varsha Nair , Moitrayee Chatterjee , Neda Tavakoli , Akbar Siami Namin , Craig Snoeyink

Feature selection aims to identify the optimal feature subset for enhancing downstream models. Effective feature selection can remove redundant features, save computational resources, accelerate the model learning process, and improve the…

Machine Learning · Computer Science 2024-12-19 Nanxu Gong , Wangyang Ying , Dongjie Wang , Yanjie Fu

Feature selection aims to identify the most pattern-discriminative feature subset. In prior literature, filter (e.g., backward elimination) and embedded (e.g., Lasso) methods have hyperparameters (e.g., top-K, score thresholding) and tie to…

Machine Learning · Computer Science 2024-03-07 Wangyang Ying , Dongjie Wang , Haifeng Chen , Yanjie Fu

Recent advances have explored visual token pruning to accelerate the inference of large vision-language models (LVLMs). However, existing methods often struggle to balance token importance and diversity: importance-based methods tend to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-08 Zhaohong Huang , Wenjing Liu , Yuxin Zhang , Fei Chao , Rongrong Ji

We present a method for performing hierarchical object detection in images guided by a deep reinforcement learning agent. The key idea is to focus on those parts of the image that contain richer information and zoom on them. We train an…

Computer Vision and Pattern Recognition · Computer Science 2016-11-28 Miriam Bellver , Xavier Giro-i-Nieto , Ferran Marques , Jordi Torres

Convolutional Neural Networks (CNNs) have recently been shown to excel at performing visual place recognition under changing appearance and viewpoint. Previously, place recognition has been improved by intelligently selecting relevant…

Robotics · Computer Science 2018-10-31 Stephen Hausler , Adam Jacobson , Michael Milford

Person recognition aims at recognizing the same identity across time and space with complicated scenes and similar appearance. In this paper, we propose a novel method to address this task by training a network to obtain robust and…

Computer Vision and Pattern Recognition · Computer Science 2017-04-03 Yu Liu , Hongyang Li , Xiaogang Wang

A central problem in machine learning and pattern recognition is the process of recognizing the most important features. In this paper, we provide a new feature selection method (DRPT) that consists of first removing the irrelevant features…

Machine Learning · Computer Science 2021-05-19 Majid Afshar , Hamid Usefi

This paper tackles the challenging problem of hyperspectral (HS) image denoising. Unlike existing deep learning-based methods usually adopting complicated network architectures or empirically stacking off-the-shelf modules to pursue…

Image and Video Processing · Electrical Eng. & Systems 2022-07-12 Jinhui Hou , Zhiyu Zhu , Hui Liu , Junhui Hou

Image registration is the process of transforming different sets of data into one coordinate system and is required for various remote sensing applications like change detection, image fusion, and other related areas. The effect of…

Computer Vision and Pattern Recognition · Computer Science 2013-03-28 Arun P. V. , Dr. S. K. Katiyar

Convolutional neural nets (CNN) are the leading computer vision method for classifying images. In some cases, it is desirable to classify only a specific region of the image that corresponds to a certain object. Hence, assuming that the…

Computer Vision and Pattern Recognition · Computer Science 2018-12-07 Sagi Eppel

Iris recognition is widely acknowledged for its exceptional accuracy in biometric authentication, traditionally relying on near-infrared (NIR) imaging. Recently, visible spectrum (VIS) imaging via accessible smartphone cameras has been…

Image and Video Processing · Electrical Eng. & Systems 2024-12-18 Naveenkumar G Venkataswamy , Yu Liu , Surendra Singh , Soumyabrata Dey , Stephanie Schuckers , Masudul H Imtiaz