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High-resolution representation is essential for achieving good performance in human pose estimation models. To obtain such features, existing works utilize high-resolution input images or fine-grained image tokens. However, this dense…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Xiaoqi An , Lin Zhao , Chen Gong , Nannan Wang , Di Wang , Jian Yang

The LaBr3:Ce scintillator has been widely studied for nuclear spectroscopy because of its optimal energy resolution (<3%@ 662 keV) and time resolution (~300 ps). Despite these promising properties, the intrinsic radiation background of…

Instrumentation and Detectors · Physics 2021-09-03 Ming Zeng , Jirong Cang , Zhi Zeng , Xiaoguang Yue , Jianping Cheng , Yinong Liu , Junli Li

Image-to-image translation can create large impact in medical imaging, as images can be synthetically transformed to other modalities, sequence types, higher resolutions or lower noise levels. To ensure patient safety, these methods should…

Image and Video Processing · Electrical Eng. & Systems 2025-02-23 Melanie Dohmen , Mark A. Klemens , Ivo M. Baltruschat , Tuan Truong , Matthias Lenga

Video-quality measurement is a critical task in video processing. Nowadays, many implementations of new encoding standards - such as AV1, VVC, and LCEVC - use deep-learning-based decoding algorithms with perceptual metrics that serve as…

Computer Vision and Pattern Recognition · Computer Science 2023-02-08 Anastasia Antsiferova , Sergey Lavrushkin , Maksim Smirnov , Alexander Gushchin , Dmitriy Vatolin , Dmitriy Kulikov

This paper reports on the NTIRE 2022 challenge on perceptual image quality assessment (IQA), held in conjunction with the New Trends in Image Restoration and Enhancement workshop (NTIRE) workshop at CVPR 2022. This challenge is held to…

Computer Vision and Pattern Recognition · Computer Science 2022-06-24 Jinjin Gu , Haoming Cai , Chao Dong , Jimmy S. Ren , Radu Timofte

MEx: Multi-modal Exercises Dataset is a multi-sensor, multi-modal dataset, implemented to benchmark Human Activity Recognition(HAR) and Multi-modal Fusion algorithms. Collection of this dataset was inspired by the need for recognising and…

Computer Vision and Pattern Recognition · Computer Science 2019-08-27 Anjana Wijekoon , Nirmalie Wiratunga , Kay Cooper

A large portion of iris images captured in real world scenarios are poor quality due to the uncontrolled environment and the non-cooperative subject. To ensure that the recognition algorithm is not affected by low-quality images,…

Image and Video Processing · Electrical Eng. & Systems 2020-09-29 Leyuan Wang , Kunbo Zhang , Min Ren , Yunlong Wang , Zhenan Sun

In the context of the GRAVITY+ upgrade, the adaptive optics (AO) systems of the GRAVITY interferometer are undergoing a major lifting. The current CILAS deformable mirrors (DM, 90 actuators) will be replaced by ALPAO kilo-DMs (43x43, 1432…

To improve the viewer's Quality of Experience (QoE) and optimize computer graphics applications, 3D model quality assessment (3D-QA) has become an important task in the multimedia area. Point cloud and mesh are the two most widely used…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Zicheng Zhang , Wei Sun , Xiongkuo Min , Tao Wang , Wei Lu , Guangtao Zhai

In this study we evaluated the task-based image quality of a low contrast clinical task for the abdomen protocol (e.g., pancreatic tumour) of three different CT vendors, exploiting three model-based iterative reconstruction (MBIR) levels.…

Medical Physics · Physics 2023-01-23 G. Muti , S. Riga , L. Berta , D. Curto , C. De Mattia , M. Felisi , F. Rizzetto , A. Torresin , A. Vanzulli , P. E. Colombo

Objective quality assessment of stereoscopic panoramic images becomes a challenging problem owing to the rapid growth of 360-degree contents. Different from traditional 2D image quality assessment (IQA), more complex aspects are involved in…

Image and Video Processing · Electrical Eng. & Systems 2019-09-05 Jiahua Xu , Ziyuan Luo , Wei Zhou , Wenyuan Zhang , Zhibo Chen

An innovative way of calculating the von Mises distribution (VMD) of image entropy is introduced in this paper. The VMD's concentration parameter and some fitness parameter that will be later defined, have been analyzed in the experimental…

Computer Vision and Pattern Recognition · Computer Science 2015-06-04 Salvador Gabarda , Gabriel Cristobal

This study introduces a modular framework for spatial image processing, integrating grayscale quantization, color and brightness enhancement, image sharpening, bidirectional transformation pipelines, and geometric feature extraction. A…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Noor Islam S. Mohammad

The observations of solar photosphere from the ground encounter significant problems due to the presence of Earth's turbulent atmosphere. Prior to applying image reconstruction techniques, the frames obtained in most favorable atmospheric…

Instrumentation and Methods for Astrophysics · Physics 2017-12-20 Adam Popowicz , Krystian Radlak , Krzysztof Bernacki , Valeri Orlov

We propose an automated method for detecting aggressive prostate cancer(CaP) (Gleason score >=7) based on a comprehensive analysis of the lesion and the surrounding normal prostate tissue which has been simultaneously captured in…

Computer Vision and Pattern Recognition · Computer Science 2016-12-02 Imon Banerjee , Lewis Hahn , Geoffrey Sonn , Richard Fan , Daniel L. Rubin

Multi-focus image fusion is a challenging field of study that aims to provide a completely focused image by integrating focused and un-focused pixels. Most existing methods suffer from shift variance, misregistered images, and…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Sultan Sevgi Turgut , Mustafa Oral

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

UAV images are critical for applications such as large-area mapping, infrastructure inspection, and emergency response. However, in real-world flight environments, a single image is often affected by multiple degradation factors, including…

Image and Video Processing · Electrical Eng. & Systems 2026-04-13 Jinquan Yan , Zhicheng Zhao , Zhengzheng Tu , Chenglong Li , Jin Tang , Bin Luo

This paper presents an improved dual channel pulse coupled neural network (IDC-PCNN) model for image fusion. The model can overcome some defects of standard PCNN model. In this fusion scheme, the multiplication rule is replaced by addition…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Huai-Shui Tong , Xiao-Jun Wu , Hui Li

Automatically interpreting CT scans can ease the workload of radiologists. However, this is challenging mainly due to the scarcity of adequate datasets and reference standards for evaluation. This study aims to bridge this gap by…

Artificial Intelligence · Computer Science 2024-06-19 Qingqing Zhu , Benjamin Hou , Tejas S. Mathai , Pritam Mukherjee , Qiao Jin , Xiuying Chen , Zhizheng Wang , Ruida Cheng , Ronald M. Summers , Zhiyong Lu