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The problem of minimization of the number of measurements needed for digital image acquisition and reconstruction with a given accuracy is addressed. Basics of the sampling theory are outlined to show that the lower bound of signal sampling…

Computer Vision and Pattern Recognition · Computer Science 2018-03-01 Leonid P. Yaroslavsky

As the quality of mobile cameras starts to play a crucial role in modern smartphones, more and more attention is now being paid to ISP algorithms used to improve various perceptual aspects of mobile photos. In this Mobile AI challenge, the…

Low-light images suffer from severe noise and low illumination. Current deep learning models that are trained with real-world images have excellent noise reduction, but a ratio parameter must be chosen manually to complete the enhancement…

Image and Video Processing · Electrical Eng. & Systems 2020-04-23 Qingxu Fu , Xiaoguang Di , Yu Zhang

Night Photography Rendering (NPR) poses a significant challenge due to the extreme contrast between dark and illuminated areas in scenes, stemming from concurrent capture of severely dark regions alongside intense point light sources.…

Computer Vision and Pattern Recognition · Computer Science 2026-05-01 Furkan Kınlı

Infrared image super-resolution (IISR) under real-world conditions is a practically significant yet rarely addressed task. Pioneering works are often trained and evaluated on simulated datasets or neglect the intrinsic differences between…

Computer Vision and Pattern Recognition · Computer Science 2026-03-06 Yang Zou , Jun Ma , Zhidong Jiao , Xingyuan Li , Zhiying Jiang , Jinyuan Liu

Reconfigurable intelligent surfaces, with their large number of antennas, offer an interesting opportunity for high spatial-resolution imaging. In this paper, we propose a novel RIS-aided integrated imaging and communication system that can…

Signal Processing · Electrical Eng. & Systems 2024-01-30 Hao Luo , Ahmed Alkhateeb

Great successes have been achieved using deep learning techniques for image super-resolution (SR) with fixed scales. To increase its real world applicability, numerous models have also been proposed to restore SR images with arbitrary scale…

Image and Video Processing · Electrical Eng. & Systems 2022-09-28 Zhihong Pan , Baopu Li , Dongliang He , Wenhao Wu , Errui Ding

This paper investigates the problem of reconstructing hyperspectral (HS) images from single RGB images captured by commercial cameras, \textbf{without} using paired HS and RGB images during training. To tackle this challenge, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Zhiyu Zhu , Hui Liu , Junhui Hou , Huanqiang Zeng , Qingfu Zhang

Low-light image enhancement, particularly in cross-domain tasks such as mapping from the raw domain to the sRGB domain, remains a significant challenge. Many deep learning-based methods have been developed to address this issue and have…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Xianmin Chen , Longfei Han , Peiliang Huang , Xiaoxu Feng , Dingwen Zhang , Junwei Han

Moire patterns frequently appear when capturing screens with smartphones or cameras, potentially compromising image quality. Previous studies suggest that moire pattern elimination in the RAW domain offers greater effectiveness compared to…

Image and Video Processing · Electrical Eng. & Systems 2024-11-19 Shuning Xu , Binbin Song , Xiangyu Chen , Xina Liu , Jiantao Zhou

In opportunistic cognitive radio networks, when the primary signal is very weak compared to the background noise, the secondary user requires long sensing time to achieve a reliable spectrum sensing performance, leading to little remaining…

Information Theory · Computer Science 2024-04-29 Jungang Ge , Ying-Chang Liang , Sumei Sun , Yonghong Zeng , Zhidong Bai

Image Super-Resolution (ISR), which aims at recovering High-Resolution (HR) images from the corresponding Low-Resolution (LR) counterparts. Although recent progress in ISR has been remarkable. However, they are way too computationally…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Jie Cai , Zibo Meng , Jiaming Ding , Chiu Man Ho

Image restoration is a low-level vision task which is to restore degraded images to noise-free images. With the success of deep neural networks, the convolutional neural networks surpass the traditional restoration methods and become the…

Image and Video Processing · Electrical Eng. & Systems 2023-01-18 Chi-Mao Fan , Tsung-Jung Liu , Kuan-Hsien Liu

Image Super-Resolution (SR) is essential for a wide range of computer vision and image processing tasks. Investigating infrared (IR) image (or thermal images) super-resolution is a continuing concern within the development of deep learning.…

Image and Video Processing · Electrical Eng. & Systems 2025-09-25 Yongsong Huang , Tomo Miyazaki , Xiaofeng Liu , Shinichiro Omachi

Spike camera is a new type of bio-inspired vision sensor that records light intensity in the form of a spike array with high temporal resolution (20,000 Hz). This new paradigm of vision sensor offers significant advantages for many vision…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Lin Zhu , Yunlong Zheng , Mengyue Geng , Lizhi Wang , Hua Huang

Despite the great advances made in the field of image super-resolution (ISR) during the last years, the performance has merely been evaluated perceptually. Thus, it is still unclear whether ISR is helpful for other vision tasks. In this…

Computer Vision and Pattern Recognition · Computer Science 2016-01-29 Dengxin Dai , Yujian Wang , Yuhua Chen , Luc Van Gool

Inverse imaging problems (IIPs) arise in various applications, with the main objective of reconstructing an image from its compressed measurements. This problem is often ill-posed for being under-determined with multiple interchangeably…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Xiwen Chen , Wenhui Zhu , Peijie Qiu , Abolfazl Razi

To address module fragmentation, uninterpretable mappings, and deployment constraints in RAW-domain demosaicing, color correction, and detail enhancement, this paper proposes RPBA-Net, an interpretable residual pyramid bilateral affine…

Computer Vision and Pattern Recognition · Computer Science 2026-05-06 Yucheng Xin , Wu Chen , Xiang Chen , Guangwei Gao , Xinchun Wang , Ruize Wu , Dianjie Lu , Guijuan Zhang , Linwei Fan , Zhuoran Zheng

Even though image signals are typically defined on a regular two-dimensional grid, there also exist many scenarios where this is not the case and the amplitude of the image signal only is available for a non-regular subset of pixel…

Image and Video Processing · Electrical Eng. & Systems 2022-04-28 Jürgen Seiler , Markus Jonscher , Michael Schöberl , André Kaup

Human beings construct perception of space by integrating sparse observations into massively interconnected synapses and neurons, offering a superior parallelism and efficiency. Replicating this capability in AI finds wide applications in…