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No-Reference Point Cloud Quality Assessment (NR-PCQA) is critical for evaluating 3D content in real-world applications where reference models are unavailable.

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Abdelouahed Laazoufi , Mohammed El Hassouni , Hocine Cherifi

Full-reference (FR) point cloud quality assessment (PCQA) has achieved impressive progress in recent years. However, in many cases, obtaining the reference point clouds is difficult, so no-reference (NR) metrics have become a research…

Image and Video Processing · Electrical Eng. & Systems 2022-07-25 Yipeng Liu , Qi Yang , Yiling Xu , Le Yang

No-reference bitstream-layer point cloud quality assessment (PCQA) can be deployed without full decoding at any network node to achieve real-time quality monitoring. In this work, we develop the first PCQA model dedicated to Trisoup-Lifting…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Juncheng Long , Honglei Su , Qi Liu , Hui Yuan , Wei Gao , Jiarun Song , Zhou Wang

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

During the compression, transmission, and rendering of point clouds, various artifacts are introduced, affecting the quality perceived by the end user. However, evaluating the impact of these distortions on the overall quality is a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Michael Neri , Federica Battisti

Point cloud compression (PCC) has made remarkable achievement in recent years. In the mean time, point cloud quality assessment (PCQA) also realize gratifying development. Some recently emerged metrics present robust performance on public…

Image and Video Processing · Electrical Eng. & Systems 2021-09-16 Yipeng Liu , Qi Yang , Yiling Xu , Zhan Ma

The visual quality of point clouds plays a crucial role in the development and broadcasting of immersive media. Therefore, investigating point cloud quality assessment (PCQA) is instrumental in facilitating immersive media applications,…

Image and Video Processing · Electrical Eng. & Systems 2025-01-28 Yipeng Liu , Qi Yang , Yujie Zhang , Yiling Xu , Le Yang , Xiaozhong Xu , Shan Liu

Objective geometry quality assessment of point clouds is essential to evaluate the performance of a wide range of point cloud-based solutions, such as denoising, simplification, reconstruction, and watermarking. Existing point cloud quality…

Multimedia · Computer Science 2022-11-03 Zhiyong Su , Chao Chu , Long Chen , Yong Li , Weiqing Li

In this paper, we focus on subjective and objective Point Cloud Quality Assessment (PCQA) in an immersive environment and study the effect of geometry and texture attributes in compression distortion. Using a Head-Mounted Display (HMD) with…

Image and Video Processing · Electrical Eng. & Systems 2024-10-30 Xinju Wu , Yun Zhang , Chunling Fan , Junhui Hou , Sam Kwong

With the rapid development of 3D vision, point cloud has become an increasingly popular 3D visual media content. Due to the irregular structure, point cloud has posed novel challenges to the related research, such as compression,…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Ziyu Shan , Qi Yang , Rui Ye , Yujie Zhang , Yiling Xu , Xiaozhong Xu , Shan Liu

The evolution of point cloud processing algorithms necessitates an accurate assessment for their quality. Previous works consistently regard point cloud quality assessment (PCQA) as a MOS regression problem and devise a deterministic…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Songlin Fan , Wei Gao , Zhineng Chen , Ge Li , Guoqing Liu , Qicheng Wang

Large Multimodal Models (LMMs) have recently enabled considerable advances in the realm of image and video quality assessment, but this progress has yet to be fully explored in the domain of 3D assets. We are interested in using these…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Shashank Gupta , Gregoire Phillips , Alan C. Bovik

We present a novel no-reference quality assessment metric, the image transferred point cloud quality assessment (IT-PCQA), for 3D point clouds. For quality assessment, deep neural network (DNN) has shown compelling performance on…

Computer Vision and Pattern Recognition · Computer Science 2022-03-14 Qi Yang , Yipeng Liu , Siheng Chen , Yiling Xu , Jun Sun

An increased interest in immersive applications has drawn attention to emerging 3D imaging representation formats, notably light fields and point clouds (PCs). Nowadays, PCs are one of the most popular 3D media formats, due to recent…

Image and Video Processing · Electrical Eng. & Systems 2020-10-13 Alireza Javaheri , Catarina Brites , Fernando Pereira , João Ascenso

No-reference bitstream-layer point cloud quality assessment (PCQA) can be deployed without full decoding at any network node to achieve real-time quality monitoring. In this work, we focus on the PCQA problem dedicated to Octree-RAHT…

Multimedia · Computer Science 2024-10-21 Dongshuai Duan , Honglei Su , Qi Liu , Hui Yuan , Wei Gao , Jiarun Song , Zhou Wang

Full-reference point cloud objective metrics are currently providing very accurate representations of perceptual quality. These metrics are usually composed of a set of features that are somehow combined, resulting in a final quality value.…

Image and Video Processing · Electrical Eng. & Systems 2025-04-07 Joao Prazeres , Rafael Rodrigues , Manuela Pereira , Antonio M. G. Pinheiro

The continual improvement of 3D sensors has driven the development of algorithms to perform point cloud analysis. In fact, techniques for point cloud classification and segmentation have in recent years achieved incredible performance…

Computer Vision and Pattern Recognition · Computer Science 2021-01-05 Junming Zhang , Weijia Chen , Yuping Wang , Ram Vasudevan , Matthew Johnson-Roberson

With the wide applications of colored point cloud in many fields, point cloud perceptual quality assessment plays a vital role in the visual communication systems owing to the existence of quality degradations introduced in various stages.…

Computer Vision and Pattern Recognition · Computer Science 2022-12-01 Qi Liu , Yiyun Liu , Honglei Su , Hui Yuan , Raouf Hamzaoui

With the increased interest in immersive experiences, point cloud came to birth and was widely adopted as the first choice to represent 3D media. Besides several distortions that could affect the 3D content spanning from acquisition to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-16 Marouane Tliba , Aladine Chetouani , Giuseppe Valenzise , Frederic Dufaux

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