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Super-resolution reconstruction (SRR) is a process aimed at enhancing spatial resolution of images, either from a single observation, based on the learned relation between low and high resolution, or from multiple images presenting the same…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Michal Kawulok , Pawel Benecki , Szymon Piechaczek , Krzysztof Hrynczenko , Daniel Kostrzewa , Jakub Nalepa

This paper proposes a novel quantum pre-processing filter (QPF) to improve the image classification accuracy of neural network (NN) models. A simple four qubit quantum circuit that uses Y rotation gates for encoding and two controlled NOT…

Quantum Physics · Physics 2023-08-23 Farina Riaz , Shahab Abdulla , Hajime Suzuki , Srinjoy Ganguly , Ravinesh C. Deo , Susan Hopkins

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

There has been a growing interest in developing image super-resolution (SR) algorithms that convert low-resolution (LR) to higher resolution images, but automatically evaluating the visual quality of super-resolved images remains a…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Wei Zhou , Zhou Wang

In this paper, we propose a no-reference (NR) image quality assessment (IQA) method via feature level pseudo-reference (PR) hallucination. The proposed quality assessment framework is grounded on the prior models of natural image…

Image and Video Processing · Electrical Eng. & Systems 2022-10-26 Baoliang Chen , Lingyu Zhu , Chenqi Kong , Hanwei Zhu , Shiqi Wang , Zhu Li

While Quantum Convolutional Neural Networks (QCNNs) offer a theoretical paradigm for quantum machine learning, their practical implementation is severely bottlenecked by barren plateaus -- the exponential vanishing of gradients -- and poor…

Machine Learning · Computer Science 2026-03-13 Radhakrishnan Delhibabu

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 Quality Transfer (IQT) aims to enhance the contrast and resolution of low-quality medical images, e.g. obtained from low-power devices, with rich information learned from higher quality images. In contrast to existing IQT methods…

Image and Video Processing · Electrical Eng. & Systems 2024-11-12 Ahmed Karam Eldaly , Matteo Figini , Daniel C. Alexander

This study introduces a novel no-reference image quality metric aimed at assessing image sharpness. Designed to be robust against variations in noise, exposure, contrast, and image content, it measures the normalized decay rate of gradients…

Image and Video Processing · Electrical Eng. & Systems 2024-10-15 Lucas Gonzalo Antonel

Image classification is a major application domain for conventional deep learning (DL). Quantum machine learning (QML) has the potential to revolutionize image classification. In any typical DL-based image classification, we use…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Mahabubul Alam , Satwik Kundu , Rasit Onur Topaloglu , Swaroop Ghosh

Methods based on convolutional neural network (CNN) have demonstrated tremendous improvements on single image super-resolution. However, the previous methods mainly restore images from one single area in the low resolution (LR) input, which…

Computer Vision and Pattern Recognition · Computer Science 2017-05-16 Xiaoyi Jia , Xiangmin Xu , Bolun Cai , Kailing Guo

Evaluation is essential in image fusion research, yet most existing metrics are directly borrowed from other vision tasks without proper adaptation. These traditional metrics, often based on complex image transformations, not only fail to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Chunyang Cheng , Tianyang Xu , Xiao-Jun Wu , Tao Zhou , Hui Li , Zhangyong Tang , Josef Kittler

Medical imaging systems are commonly assessed and optimized by the use of objective measures of image quality (IQ). The performance of the ideal observer (IO) acting on imaging measurements has long been advocated as a figure-of-merit to…

Medical Physics · Physics 2025-01-17 Kaiyan Li , Prabhat Kc , Hua Li , Kyle J. Myers , Mark A. Anastasio , Rongping Zeng

Quantitative MRI (qMRI) refers to a class of MRI methods for quantifying the spatial distribution of biological tissue parameters. Traditional qMRI methods usually deal separately with artifacts arising from accelerated data acquisition,…

Image and Video Processing · Electrical Eng. & Systems 2025-02-21 Xiaojian Xu , Weijie Gan , Satya V. V. N. Kothapalli , Dmitriy A. Yablonskiy , Ulugbek S. Kamilov

Quantum Image Processing (QIP) is a field that aims to utilize the benefits of quantum computing for manipulating and analyzing images. However, QIP faces two challenges: the limitation of qubits and the presence of noise in a quantum…

Quantum Physics · Physics 2024-09-27 Yifan Zhou , Yan Shing Liang

Background and Objectives: Cardiovascular magnetic resonance (CMR) imaging is a powerful modality in functional and anatomical assessment for various cardiovascular diseases. Sufficient image quality is essential to achieve proper diagnosis…

Image and Video Processing · Electrical Eng. & Systems 2023-10-02 Shahabedin Nabavi , Hossein Simchi , Mohsen Ebrahimi Moghaddam , Ahmad Ali Abin , Alejandro F. Frangi

Full-reference (FR) image quality assessment (IQA) evaluates the visual quality of a distorted image by measuring its perceptual difference with pristine-quality reference, and has been widely used in low-level vision tasks. Pairwise…

Computer Vision and Pattern Recognition · Computer Science 2022-04-20 Yue Cao , Zhaolin Wan , Dongwei Ren , Zifei Yan , Wangmeng Zuo

We introduce a novel cross-reference image quality assessment method that effectively fills the gap in the image assessment landscape, complementing the array of established evaluation schemes -- ranging from full-reference metrics like…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Zirui Wang , Wenjing Bian , Victor Adrian Prisacariu

Numerous image superresolution (SR) algorithms have been proposed for reconstructing high-resolution (HR) images from input images with lower spatial resolutions. However, effectively evaluating the perceptual quality of SR images remains a…

Image and Video Processing · Electrical Eng. & Systems 2020-04-15 Wei Zhou , Qiuping Jiang , Yuwang Wang , Zhibo Chen , Weiping Li

Several recent works have addressed the ability of deep learning to disclose rich, hierarchical and discriminative models for the most diverse purposes. Specifically in the super-resolution field, Convolutional Neural Networks (CNNs) using…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Eduardo Ribeiro , Andreas Uhl , Fernando Alonso-Fernandez