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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 visual quality of point clouds has been greatly emphasized since the ever-increasing 3D vision applications are expected to provide cost-effective and high-quality experiences for users. Looking back on the development of point cloud…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Zicheng Zhang , Wei Sun , Xiongkuo Min , Quan Zhou , Jun He , Qiyuan Wang , Guangtao Zhai

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

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

Point cloud is one of the most widely used digital formats of 3D models, the visual quality of which is quite sensitive to distortions such as downsampling, noise, and compression. To tackle the challenge of point cloud quality assessment…

Image and Video Processing · Electrical Eng. & Systems 2022-09-21 Yu Fan , Zicheng Zhang , Wei Sun , Xiongkuo Min , Wei Lu , Tao Wang , Ning Liu , Guangtao Zhai

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

Point cloud is one of the most widely used digital representation formats for three-dimensional (3D) contents, the visual quality of which may suffer from noise and geometric shift distortions during the production procedure as well as…

Computer Vision and Pattern Recognition · Computer Science 2023-12-07 Zicheng Zhang , Wei Sun , Yucheng Zhu , Xiongkuo Min , Wei Wu , Ying Chen , Guangtao Zhai

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

Point clouds are widely used in 3D content representation and have various applications in multimedia. However, compression and simplification processes inevitably result in the loss of quality-aware information under storage and bandwidth…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Zicheng Zhang , Yingjie Zhou , Wei Sun , Xiongkuo Min , Guangtao Zhai

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

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

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

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

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

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

No-reference point cloud quality assessment (NR-PCQA) aims to automatically evaluate the perceptual quality of distorted point clouds without available reference, which have achieved tremendous improvements due to the utilization of deep…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Ziyu Shan , Yujie Zhang , Qi Yang , Haichen Yang , Yiling Xu , Jenq-Neng Hwang , Xiaozhong Xu , Shan Liu

Following the advent of immersive technologies and the increasing interest in representing interactive geometrical format, 3D Point Clouds (PC) have emerged as a promising solution and effective means to display 3D visual information. In…

Computer Vision and Pattern Recognition · Computer Science 2022-11-07 Marouane Tliba , Aladine Chetouani , Giuseppe Valenzise , Frederic Dufaux

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

Point clouds are a general format for representing realistic 3D objects in diverse 3D applications. Since point clouds have large data sizes, developing efficient point cloud compression methods is crucial. However, excessive compression…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Ryosuke Watanabe , Shashank N. Sridhara , Haoran Hong , Eduardo Pavez , Keisuke Nonaka , Tatsuya Kobayashi , Antonio Ortega

Point cloud quality assessment (PCQA) has become an appealing research field in recent days. Considering the importance of saliency detection in quality assessment, we propose an effective full-reference PCQA metric which makes the first…

Computer Vision and Pattern Recognition · Computer Science 2022-10-03 Zhengyu Wang , Yujie Zhang , Qi Yang , Yiling Xu , Jun Sun , Shan Liu
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