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Identifying the regions of a learning resource that a learner pays attention to is crucial for assessing the material's impact and improving its design and related support systems. Saliency detection in videos addresses the automatic…

Computer Vision and Pattern Recognition · Computer Science 2024-08-09 Evelyn Navarrete , Ralph Ewerth , Anett Hoppe

Motion models play a great role in visual tracking applications for predicting the possible locations of objects in the next frame. Unlike target tracking in radar or aerospace domain which considers only points, object tracking in computer…

Computer Vision and Pattern Recognition · Computer Science 2020-10-22 Nathanael L. Baisa

This paper addresses the visualisation of image classification models, learnt using deep Convolutional Networks (ConvNets). We consider two visualisation techniques, based on computing the gradient of the class score with respect to the…

Computer Vision and Pattern Recognition · Computer Science 2014-04-22 Karen Simonyan , Andrea Vedaldi , Andrew Zisserman

In this work, we propose a 3D fully convolutional architecture for video saliency prediction that employs hierarchical supervision on intermediate maps (referred to as conspicuity maps) generated using features extracted at different…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Giovanni Bellitto , Federica Proietto Salanitri , Simone Palazzo , Francesco Rundo , Daniela Giordano , Concetto Spampinato

Crowd flow segmentation is an important step in many video surveillance tasks. In this work, we propose an algorithm for segmenting flows in H.264 compressed videos in a completely unsupervised manner. Our algorithm works on motion vectors…

Computer Vision and Pattern Recognition · Computer Science 2015-06-22 Srinivas S. S. Kruthiventi , R. Venkatesh Babu

Effective compression of 360$^\circ$ images, also referred to as omnidirectional images (ODIs), is of high interest for various virtual reality (VR) and related applications. 2D image compression methods ignore the equator-biased nature of…

Image and Video Processing · Electrical Eng. & Systems 2024-02-15 Oguzhan Gungordu , A. Murat Tekalp

Video tokenizers are essential for latent video diffusion models, converting raw video data into spatiotemporally compressed latent spaces for efficient training. However, extending state-of-the-art video tokenizers to achieve a temporal…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Aniruddha Mahapatra , Long Mai , David Bourgin , Yitian Zhang , Feng Liu

Video Coding for Machines (VCM) is committed to bridging to an extent separate research tracks of video/image compression and feature compression, and attempts to optimize compactness and efficiency jointly from a unified perspective of…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Wenhan Yang , Haofeng Huang , Yueyu Hu , Ling-Yu Duan , Jiaying Liu

Modern video codecs and learning-based approaches struggle for semantic reconstruction at extremely low bit-rates due to reliance on low-level spatiotemporal redundancies. Generative models, especially diffusion models, offer a new paradigm…

Image and Video Processing · Electrical Eng. & Systems 2026-02-06 Maojun Zhang , Haotian Wu , Richeng Jin , Deniz Gunduz , Krystian Mikolajczyk

There has been a growing trend in compressing and transmitting videos from terminals for machine vision tasks. Nevertheless, most video coding optimization method focus on minimizing distortion according to human perceptual metrics,…

Multimedia · Computer Science 2025-12-18 Fei Zhao , Mengxi Guo , Shijie Zhao , Junlin Li , Li Zhang , Xiaodong Xie

Low-light videos often exhibit spatiotemporal incoherent noise, leading to poor visibility and compromised performance across various computer vision applications. One significant challenge in enhancing such content using modern…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Nantheera Anantrasirichai , Ruirui Lin , Alexandra Malyugina , David Bull

Recently, the philosophy of visual saliency and attention has started to gain popularity in the robotics community. Therefore, this paper aims to mimic this mechanism in SLAM framework by using saliency prediction model. Comparing with…

Robotics · Computer Science 2020-12-23 Ke Wang , Sai Ma , Junlan Chen , Jianbo Lu

Bottom-up and top-down visual cues are two types of information that helps the visual saliency models. These salient cues can be from spatial distributions of the features (space-based saliency) or contextual / task-dependent features…

Computer Vision and Pattern Recognition · Computer Science 2018-07-05 Nevrez Imamoglu , Wataru Shimoda , Chi Zhang , Yuming Fang , Asako Kanezaki , Keiji Yanai , Yoshifumi Nishida

Object detection is an important task in remote sensing image analysis. To reduce the computational complexity of redundant information and improve the efficiency of image processing, visual saliency models have been widely applied in this…

Computer Vision and Pattern Recognition · Computer Science 2021-04-21 Zhou Huang , Huai-Xin Chen , Tao Zhou , Yun-Zhi Yang , Chang-Yin Wang , Bi-Yuan Liu

Deep neural object detection or segmentation networks are commonly trained with pristine, uncompressed data. However, in practical applications the input images are usually deteriorated by compression that is applied to efficiently transmit…

Image and Video Processing · Electrical Eng. & Systems 2022-05-16 Kristian Fischer , Christian Blum , Christian Herglotz , André Kaup

Optical systems which measure independent random projections of a scene according to compressed sensing (CS) theory face a myriad of practical challenges related to the size of the physical platform, photon efficiency, the need for high…

Applications · Statistics 2015-03-19 Zachary T. Harmany , Roummel F. Marcia , Rebecca M. Willett

In recent years, deep saliency models have made significant progress in predicting human visual attention. However, the mechanisms behind their success remain largely unexplained due to the opaque nature of deep neural networks. In this…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Shi Chen , Ming Jiang , Qi Zhao

A key problem in salient object detection is how to effectively model the semantic properties of salient objects in a data-driven manner. In this paper, we propose a multi-task deep saliency model based on a fully convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2016-08-24 Xi Li , Liming Zhao , Lina Wei , Ming-Hsuan Yang , Fei Wu , Yueting Zhuang , Haibin Ling , Jingdong Wang

Visual sensation and perception refers to the process of sensing, organizing, identifying, and interpreting visual information in environmental awareness and understanding. Computational models inspired by visual perception have the…

Artificial Intelligence · Computer Science 2021-09-09 Bing Wei , Yudi Zhao , Kuangrong Hao , Lei Gao

Dataset distillation has demonstrated remarkable effectiveness in high-compression scenarios for image datasets. While video datasets inherently contain greater redundancy, existing video dataset distillation methods primarily focus on…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Ning Li , Antai Andy Liu , Jingran Zhang , Justin Cui