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Most of the standard image and video codecs are block-based and depending upon the compression ratio the compressed images/videos suffer from different distortions. At low ratios, blurriness is observed and as compression increases blocking…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Maryam Viqar , Athar A. Moinuddin , Ekram Khan , M. Ghanbari

Current full-reference image quality assessment (FR-IQA) methods often fuse features from reference and distorted images, overlooking that color and luminance distortions occur mainly at low frequencies, whereas edge and texture distortions…

Image and Video Processing · Electrical Eng. & Systems 2024-12-23 Xuekai Wei , Junyu Zhang , Qinlin Hu , Mingliang Zhou\\Yong Feng , Weizhi Xian , Huayan Pu , Sam Kwong

Scale-invariance is an open problem in many computer vision subfields. For example, object labels should remain constant across scales, yet model predictions diverge in many cases. This problem gets harder for tasks where the ground-truth…

Computer Vision and Pattern Recognition · Computer Science 2022-12-13 Oliver Wiedemann , Vlad Hosu , Shaolin Su , Dietmar Saupe

Blind image quality assessment is a challenging task particularly due to the unavailability of reference information. Training a deep neural network requires a large amount of training data which is not readily available for image quality.…

Computer Vision and Pattern Recognition · Computer Science 2023-05-17 Nisar Ahmed , H. M. Shahzad Asif , Abdul Rauf Bhatti , Atif Khan

Image Quality Assessment (IQA) plays a vital role in applications such as image compression, restoration, and multimedia streaming. However, existing metrics often struggle to generalize across diverse image types - particularly between…

Image and Video Processing · Electrical Eng. & Systems 2025-08-26 Mohtashim Baqar , Sian Lun Lau , Mansoor Ebrahim

Image quality assessment (IQA) aims to estimate human perception based image visual quality. Although existing deep neural networks (DNNs) have shown significant effectiveness for tackling the IQA problem, it still needs to improve the…

Image and Video Processing · Electrical Eng. & Systems 2020-12-04 Wei Zhou , Zhibo Chen

In this paper, we address the well-known image quality assessment problem but in contrast from existing approaches that predict image quality independently for every images, we propose to jointly model different images depicting the same…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Marcelin Tworski , Stéphane Lathuilière

We present an end-to-end image compression system based on compressive sensing. The presented system integrates the conventional scheme of compressive sampling and reconstruction with quantization and entropy coding. The compression…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Xin Yuan , Raziel Haimi-Cohen

Image compression is a fundamental technology for Internet communication engineering. However, a high compression rate with general methods may degrade images, resulting in unreadable texts. In this paper, we propose an image compression…

Computer Vision and Pattern Recognition · Computer Science 2023-05-31 Shohei Uchigasaki , Tomo Miyazaki , Shinichiro Omachi

Face image quality assessment (FIQA) plays a critical role in face recognition and verification systems, especially in uncontrolled, real-world environments. Although several methods have been proposed, general-purpose no-reference image…

Computer Vision and Pattern Recognition · Computer Science 2025-09-15 MohammadAli Hamidi , Hadi Amirpour , Luigi Atzori , Christian Timmerer

Image Quality Assessment (IQA) algorithms evaluate the perceptual quality of an image using evaluation scores that assess the similarity or difference between two images. We propose a new low-level feature based IQA technique, which applies…

Multimedia · Computer Science 2017-12-04 Navaneeth K. Kottayil , Irene Cheng , Frederic Dufaux , Anup Basu

The quality of visual input is very important for both human and machine perception. Consequently many processing techniques exist that deal with different distortions. Usually image processing is applied freely and lacks redundancy…

Image and Video Processing · Electrical Eng. & Systems 2021-02-10 Sascha Xu , Jan Bauer , Benjamin Axmann

No-reference image quality assessment (NR-IQA) is a fundamental yet challenging task in low-level computer vision community. The difficulty is particularly pronounced for the limited information, for which the corresponding reference for…

Computer Vision and Pattern Recognition · Computer Science 2018-04-06 Kwan-Yee Lin , Guanxiang Wang

Full-reference image quality metrics (FR-IQMs) aim to measure the visual differences between a pair of reference and distorted images, with the goal of accurately predicting human judgments. However, existing FR-IQMs, including traditional…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Uğur Çoğalan , Mojtaba Bemana , Hans-Peter Seidel , Karol Myszkowski

We aim at advancing blind image quality assessment (BIQA), which predicts the human perception of image quality without any reference information. We develop a general and automated multitask learning scheme for BIQA to exploit auxiliary…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Weixia Zhang , Guangtao Zhai , Ying Wei , Xiaokang Yang , Kede Ma

Computational models for blind image quality assessment (BIQA) are typically trained in well-controlled laboratory environments with limited generalizability to realistically distorted images. Similarly, BIQA models optimized for images…

Computer Vision and Pattern Recognition · Computer Science 2020-05-21 Weixia Zhang , Kede Ma , Guangtao Zhai , Xiaokang Yang

Optical microscopy is one of the most widely used techniques in research studies for life sciences and biomedicine. These applications require reliable experimental pipelines to extract valuable knowledge from the measured samples and must…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Elena Corbetta , Thomas Bocklitz

Learning-based image quality assessment (IQA) has made remarkable progress in the past decade, but nearly all consider the two key components -- model and data -- in isolation. Specifically, model-centric IQA focuses on developing…

Computer Vision and Pattern Recognition · Computer Science 2023-12-11 Peibei Cao , Dingquan Li , Kede Ma

Image Quality Assessment (IQA) models aim to predict perceptual image quality in alignment with human judgments. No-Reference (NR) IQA remains particularly challenging due to the absence of a reference image. While deep learning has…

Image and Video Processing · Electrical Eng. & Systems 2025-07-18 Rajesh Sureddi , Saman Zadtootaghaj , Nabajeet Barman , Alan C. Bovik

Among the various image quality assessment (IQA) tasks, blind IQA (BIQA) is particularly challenging due to the absence of knowledge about the reference image and distortion type. Features based on natural scene statistics (NSS) have been…

Computer Vision and Pattern Recognition · Computer Science 2015-10-13 Wufeng Xue , Xuanqin Mou , Lei Zhang