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A new application for real-time monitoring of the lack of movement in older adults' own homes is proposed, aiming to support people's lives and independence in their later years. A lightweight camera monitoring system, based on an RGB-D…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Chen Long-fei , Robert B. Fisher

Video analytics systems designed for deployment in outdoor conditions can be vulnerable to many environmental changes, particularly changes in shadow. Existing works have shown that shadow and its introduced distribution shift can cause…

Image and Video Processing · Electrical Eng. & Systems 2024-10-08 Shengtai Ju , Amy R. Reibman

The applications of automotive cameras in Advanced Driver-Assistance Systems (ADAS) are growing rapidly as automotive manufacturers strive to provide 360 degree protection for their customers. Vision systems must capture high quality images…

Image and Video Processing · Electrical Eng. & Systems 2020-11-26 Shane Gilroy , John O'Dwyer , Lucas Bortoleto

Imaging in low light is challenging due to low photon count and low SNR. Short-exposure images suffer from noise, while long exposure can induce blur and is often impractical. A variety of denoising, deblurring, and enhancement techniques…

Computer Vision and Pattern Recognition · Computer Science 2018-05-08 Chen Chen , Qifeng Chen , Jia Xu , Vladlen Koltun

Object detection and semantic segmentation are two of the most widely adopted deep learning algorithms in agricultural applications. One of the major sources of variability in image quality acquired in the outdoors for such tasks is…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Abhisesh Silwal , Tanvir Parhar , Francisco Yandun , George Kantor

Person re-identification (Re-ID) in real-world scenarios usually suffers from various degradation factors, e.g., low-resolution, weak illumination, blurring and adverse weather. On the one hand, these degradations lead to severe…

Computer Vision and Pattern Recognition · Computer Science 2020-04-13 Yukun Huang , Zheng-Jun Zha , Xueyang Fu , Richang Hong , Liang Li

Due to its potential wide applications in video surveillance and other computer vision tasks like tracking, person re-identification (ReID) has become popular and been widely investigated. However, conventional person re-identification can…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Xing Fan , Hao Luo , Chi Zhang , Wei Jiang

We present a simple, yet effective and flexible method for action recognition supporting multiple sensor modalities. Multivariate signal sequences are encoded in an image and are then classified using a recently proposed EfficientNet CNN…

Computer Vision and Pattern Recognition · Computer Science 2020-04-10 Raphael Memmesheimer , Nick Theisen , Dietrich Paulus

This paper proposes a novel multi-modal transformer network for detecting actions in untrimmed videos. To enrich the action features, our transformer network utilizes a new multi-modal attention mechanism that computes the correlations…

Computer Vision and Pattern Recognition · Computer Science 2023-06-01 Matthew Korban , Scott T. Acton , Peter Youngs

Global Illumination (GI) is of utmost importance in the field of photo-realistic rendering. However, its computation has always been very complex, especially diffuse GI. State of the art real-time GI methods have limitations of different…

Graphics · Computer Science 2020-07-30 Jinkai Hu , Milo Yip , G. Elias Alonso , Shihao Gu , Xiangjun Tang , Xiaogang Jin

Residual images and illumination estimation have been proved very helpful in image enhancement. In this paper, we propose a general and novel framework RIS-GAN which explores residual and illumination with Generative Adversarial Networks…

Image and Video Processing · Electrical Eng. & Systems 2019-12-30 Ling Zhang , Chengjiang Long , Xiaolong Zhang , Chunxia Xiao

Many existing methods for low-light image enhancement (LLIE) based on Retinex theory ignore important factors that affect the validity of this theory in digital imaging, such as noise, quantization error, non-linearity, and dynamic range…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Shangquan Sun , Wenqi Ren , Jingyang Peng , Fenglong Song , Xiaochun Cao

Deep learning models have achieved excellent recognition results on large-scale video benchmarks. However, they perform poorly when applied to videos with rare scenes or objects, primarily due to the bias of existing video datasets. We…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Haodong Duan , Yue Zhao , Kai Chen , Yuanjun Xiong , Dahua Lin

Low light images captured in a non-uniform illumination environment usually are degraded with the scene depth and the corresponding environment lights. This degradation results in severe object information loss in the degraded image…

Computer Vision and Pattern Recognition · Computer Science 2020-08-03 Xin Xu , Shiqin Wang , Zheng Wang , Xiaolong Zhang , Ruimin Hu

Most person re-identification (ReID) approaches assume that person images are captured under relatively similar illumination conditions. In reality, long-term person retrieval is common, and person images are often captured under different…

Computer Vision and Pattern Recognition · Computer Science 2020-04-24 Zelong Zeng , Zhixiang Wang , Zheng Wang , Yinqiang Zheng , Yung-Yu Chuang , Shin'ichi Satoh

A big part of the video content we consume from video providers consists of genres featuring low-light aesthetics. Low light sequences have special characteristics, such as spatio-temporal varying acquisition noise and light flickering,…

Image and Video Processing · Electrical Eng. & Systems 2021-09-17 Nantheera Anantrasirichai , Fan Zhang , Alexandra Malyugina , Paul Hill , Angeliki Katsenou

Detection of moving objects in videos is a crucial step towards successful surveillance and monitoring applications. A key component for such tasks is called background subtraction and tries to extract regions of interest from the image…

Computer Vision and Pattern Recognition · Computer Science 2017-10-30 Konstantinos Makantasis , Antonis Nikitakis , Anastasios Doulamis , Nikolaos Doulamis , Yannis Papaefstathiou

Capturing geometric and material information from images remains a fundamental challenge in computer vision and graphics. Traditional optimization-based methods often require hours of computational time to reconstruct geometry, material…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Zhibing Li , Tong Wu , Jing Tan , Mengchen Zhang , Jiaqi Wang , Dahua Lin

Efficient security management has become an important parameter in todays world. As the problem is growing, there is an urgent need for the introduction of advanced technology and equipment to improve the state-of art of surveillance. In…

Computer Vision and Pattern Recognition · Computer Science 2013-07-23 Subra Mukherjee , Karen Das

Video Frame Interpolation (VFI) is important for video enhancement, frame rate up-conversion, and slow-motion generation. The introduction of event cameras, which capture per-pixel brightness changes asynchronously, has significantly…

Computer Vision and Pattern Recognition · Computer Science 2024-09-13 Ziran Zhang , Yongrui Ma , Yueting Chen , Feng Zhang , Jinwei Gu , Tianfan Xue , Shi Guo