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Face Image Quality Assessment (FIQA) estimates the utility of face images for automated face recognition (FR) systems. We propose in this work a novel approach to assess the quality of face images based on inspecting the required changes in…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Jan Niklas Kolf , Naser Damer , Fadi Boutros

This paper reported a general noninterferometric high-accuracy quantitative phase imaging (QPI) method for arbitrary complex valued objects. Given by a typical 4f optical configuration as the imaging system, three frames of small-window…

Image and Video Processing · Electrical Eng. & Systems 2021-05-05 Jianhui Huang , An Pan , Huiliang Jin , Guoxiang Meng , Qian Ye

Blind Image Quality Assessment (BIQA) aims to evaluate image quality in line with human perception, without reference benchmarks. Currently, deep learning BIQA methods typically depend on using features from high-level tasks for transfer…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Xudong Li , Jingyuan Zheng , Runze Hu , Yan Zhang , Ke Li , Yunhang Shen , Xiawu Zheng , Yutao Liu , ShengChuan Zhang , Pingyang Dai , Rongrong Ji

Face swapping has become a prominent research area in computer vision and image processing due to rapid technological advancements. The metric of measuring the quality in most face swapping methods relies on several distances between the…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Xinghui Zhou , Wenbo Zhou , Tianyi Wei , Shen Chen , Taiping Yao , Shouhong Ding , Weiming Zhang , Nenghai Yu

With the rapid development of 3D vision applications based on point clouds, point cloud quality assessment(PCQA) is becoming an important research topic. However, the prior PCQA methods ignore the effect of local quality variance across…

Computer Vision and Pattern Recognition · Computer Science 2023-06-12 Jun Cheng , Honglei Su , Jari Korhonen

Aiming to enhance Face Recognition (FR) on Low-Quality (LQ) inputs, recent studies suggest incorporating synthetic LQ samples into training. Although promising, the quality factors that are considered in these works are general rather than…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Mohammad Saeed Ebrahimi Saadabadi , Sahar Rahimi Malakshan , Ali Dabouei , Nasser M. Nasrabadi

Perceptual image quality assessment (IQA) is the task of predicting the visual quality of an image as perceived by a human observer. Current state-of-the-art techniques are based on deep representations trained in discriminative manner.…

Image and Video Processing · Electrical Eng. & Systems 2024-04-30 Simon Raviv , Gal Chechik

Face Image Quality Assessment (FIQA) aims to assess the recognition utility of face samples and is essential for reliable face recognition (FR) systems. Existing approaches require computationally expensive procedures such as multiple…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Guray Ozgur , Tahar Chettaoui , Eduarda Caldeira , Jan Niklas Kolf , Marco Huber , Andrea Atzori , Naser Damer , Fadi Boutros

Image Quality Assessment (IQA) methods typically overlook local manifold structures, leading to compromised discriminative capabilities in perceptual quality evaluation. To address this limitation, we present LML-IQA, an innovative…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Zihao Huang , Runze Hu , Timin Gao , Yan Zhang , Yunhang Shen , Ke Li

Depth estimation is a fundamental problem in light field processing. Epipolar-plane image (EPI)-based methods often encounter challenges such as low accuracy in slope computation due to discretization errors and limited angular resolution.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Ping Zhou , Langqing Shi , Xiaoyang Liu , Jing Jin , Yuting Zhang , Junhui Hou

Point cloud is one of the most widely used digital formats of 3D models, the visual quality of which is quite sensitive to distortions such as downsampling, noise, and compression. To tackle the challenge of point cloud quality assessment…

Image and Video Processing · Electrical Eng. & Systems 2022-09-21 Yu Fan , Zicheng Zhang , Wei Sun , Xiongkuo Min , Wei Lu , Tao Wang , Ning Liu , Guangtao Zhai

Photometric pipelines struggle to estimate both the flux and flux uncertainty for stars in the presence of structured backgrounds such as filaments or clouds. However, it is exactly stars in these complex regions that are critical to…

Instrumentation and Methods for Astrophysics · Physics 2022-07-20 Andrew K. Saydjari , Douglas P. Finkbeiner

Capturing different intensity and directions of light rays at the same scene Light field (LF) can encode the 3D scene cues into a 4D LF image which has a wide range of applications (i.e. post-capture refocusing and depth sensing). LF image…

Image and Video Processing · Electrical Eng. & Systems 2024-09-27 Zhongxin Yu , Liang Chen , Zhiyun Zeng , Kunping Yang , Shaofei Luo , Shaorui Chen , Cheng Zhong

Recent advancements in Blind Image Restoration (BIR) methods, based on Generative Adversarial Networks and Diffusion Models, have significantly improved visual quality. However, they present significant challenges for Image Quality…

Image and Video Processing · Electrical Eng. & Systems 2025-08-11 Xiaojun Tang , Jingru Wang , Guangwei Huang , Guannan Chen , Rui Zheng , Lian Huai , Yuyu Liu , Xingqun Jiang

No-Reference Image Quality Assessment (NR-IQA) aims to estimate perceptual quality without access to a reference image of pristine quality. Learning an NR-IQA model faces a fundamental bottleneck: its need for a large number of costly human…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Mahdi Naseri , Zhou Wang

Low light very likely leads to the degradation of an image's quality and even causes visual task failures. Existing image enhancement technologies are prone to overenhancement, color distortion or time consumption, and their adaptability is…

Image and Video Processing · Electrical Eng. & Systems 2022-05-17 Xiaozhou Lei , Zixiang Fei , Wenju Zhou , Huiyu Zhou , Minrui Fei

Image quality assessment that aims at estimating the subject quality of images, builds models to evaluate the perceptual quality of the image in different applications. Based on the fact that the human visual system (HVS) is highly…

Image and Video Processing · Electrical Eng. & Systems 2020-12-22 Congmin Chen , Xuanqin Mou

Neural fields or implicit neural representations (INRs) have attracted significant attention in computer vision and imaging due to their efficient coordinate-based representation of images and 3D volumes. In this work, we introduce a…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 AmirEhsan Khorashadizadeh , Tobías I. Liaudat , Tianlin Liu , Jason D. McEwen , Ivan Dokmanić

Image aesthetics assessment (IAA) aims to estimate the aesthetics of images. Depending on the content of an image, diverse criteria need to be selected to assess its aesthetics. Existing works utilize pre-trained vision backbones based on…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Zhiwei Xiong , Yunfan Zhang , Zhiqi Shen , Peiran Ren , Han Yu

In the last few years, image processing researchers spent a substantial amount of time and effort developing and perfecting image quality assessment algorithms. Bright-field microscopy, for example, produces images whose quality is a…

Image and Video Processing · Electrical Eng. & Systems 2020-03-26 V. A. A. Catanante , O. M. Bruno , J. E. S. Batista Neto