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It is an important task to faithfully evaluate the perceptual quality of output images in many applications such as image compression, image restoration and multimedia streaming. A good image quality assessment (IQA) model should not only…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Wufeng Xue , Lei Zhang , Xuanqin Mou , Alan C. Bovik

Most existing trackers are based on using a classifier and multi-scale estimation to estimate the target state. Consequently, and as expected, trackers have become more stable while tracking accuracy has stagnated. While trackers adopt a…

Computer Vision and Pattern Recognition · Computer Science 2022-01-21 Di Yuan , Xiu Shu , Nana Fan , Xiaojun Chang , Qiao Liu , Zhenyu He

Despite the promising results, existing oriented object detection methods usually involve heuristically designed rules, e.g., RRoI generation, rotated NMS. In this paper, we propose an end-to-end framework for oriented object detection,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-02 Qiang Zhou , Chaohui Yu , Zhibin Wang , Fan Wang

Benefiting from the great success of deep learning in computer vision, CNN-based object detection methods have drawn significant attentions. Various frameworks have been proposed which show awesome and robust performance for a large range…

Computer Vision and Pattern Recognition · Computer Science 2019-03-15 Yongliang Chen

Objective quality assessment of stereoscopic omnidirectional images is a challenging problem since it is influenced by multiple aspects such as projection deformation, field of view (FoV) range, binocular vision, visual comfort, etc.…

Multimedia · Computer Science 2019-06-13 Zhibo Chen , Jiahua Xu , Chaoyi Lin , Wei Zhou

No-Reference Point Cloud Quality Assessment (NR-PCQA) still struggles with generalization, primarily due to the scarcity of annotated point cloud datasets. Since the Human Visual System (HVS) drives perceptual quality assessment…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Guohua Zhang , Jian Jin , Meiqin Liu , Chao Yao , Weisi Lin

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

The real-world applications of 3D point clouds have been growing rapidly in recent years, but not much effective work has been dedicated to perceptual quality assessment of colored 3D point clouds. In this work, we first build a large 3D…

Image and Video Processing · Electrical Eng. & Systems 2021-11-11 Honglei Su , Qi Liu , Zhengfang Duanmu , Wentao Liu , Zhou Wang

Blind image quality assessment (BIQA) aims to predict perceptual image quality scores without access to reference images. State-of-the-art BIQA methods typically require subjects to score a large number of images to train a robust model.…

Computer Vision and Pattern Recognition · Computer Science 2019-04-25 Fei Gao , Dacheng Tao , Xinbo Gao , Xuelong Li

Object detection using single point supervision has received increasing attention over the years. However, the performance gap between point supervised object detection (PSOD) and bounding box supervised detection remains large. In this…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Pengfei Chen , Xuehui Yu , Xumeng Han , Najmul Hassan , Kai Wang , Jiachen Li , Jian Zhao , Humphrey Shi , Zhenjun Han , Qixiang Ye

Task inharmony problem commonly occurs in modern object detectors, leading to inconsistent qualities between classification and regression tasks. The predicted boxes with high classification scores but poor localization positions or low…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Long Huang , Zhiwei Dong , Song-Lu Chen , Ruiyao Zhang , Shutong Ti , Feng Chen , Xu-Cheng Yin

Image Quality Assessment (IQA) models are employed in many practical image and video processing pipelines to reduce storage, minimize transmission costs, and improve the Quality of Experience (QoE) of millions of viewers. These models are…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Krishna Srikar Durbha , Asvin Kumar Venkataramanan , Rajesh Sureddi , Alan C. Bovik

Recent years have witnessed many exciting achievements for object detection using deep learning techniques. Despite achieving significant progresses, most existing detectors are designed to detect objects with relatively low-quality…

Computer Vision and Pattern Recognition · Computer Science 2018-03-23 Xiongwei Wu , Daoxin Zhang , Jianke Zhu , Steven C. H. Hoi

Blind image quality assessment (BIQA) aims to automatically evaluate the perceived quality of a single image, whose performance has been improved by deep learning-based methods in recent years. However, the paucity of labeled data somewhat…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Kai Zhao , Kun Yuan , Ming Sun , Mading Li , Xing Wen

The rapid advancement of artificial intelligence and widespread use of smartphones have resulted in an exponential growth of image data, both real (camera-captured) and virtual (AI-generated). This surge underscores the critical need for…

Computer Vision and Pattern Recognition · Computer Science 2025-04-25 Zhiqiang Lao , Heather Yu

Objective assessment of image quality is fundamentally important in many image processing tasks. In this work, we focus on learning blind image quality assessment (BIQA) models which predict the quality of a digital image with no access to…

Computer Vision and Pattern Recognition · Computer Science 2019-04-16 Kede Ma , Wentao Liu , Tongliang Liu , Zhou Wang , Dacheng Tao

Most of existing blind omnidirectional image quality assessment (BOIQA) models rely on viewport generation by modeling user viewing behavior or transforming omnidirectional images (OIs) into varying formats; however, these methods are…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Jiebin Yan , Kangcheng Wu , Junjie Chen , Ziwen Tan , Yuming Fang

Applying the knowledge of an object detector trained on a specific domain directly onto a new domain is risky, as the gap between two domains can severely degrade model's performance. Furthermore, since different instances commonly embody…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Minghao Xu , Hang Wang , Bingbing Ni , Qi Tian , Wenjun Zhang

Year after year, the demand for ever-better smartphone photos continues to grow, in particular in the domain of portrait photography. Manufacturers thus use perceptual quality criteria throughout the development of smartphone cameras. This…

Computer Vision and Pattern Recognition · Computer Science 2023-04-13 Nicolas Chahine , Ana-Stefania Calarasanu , Davide Garcia-Civiero , Theo Cayla , Sira Ferradans , Jean Ponce

Most object detection methods use bounding boxes to encode and represent the object shape and location. In this work, we explore a fuzzy representation of object regions using Gaussian distributions, which provides an implicit binary…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Jeffri M. Llerena , Luis Felipe Zeni , Lucas N. Kristen , Claudio Jung