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Point clouds denote a prominent solution for the representation of 3D photo-realistic content in immersive applications. Similarly to other imaging modalities, quality predictions for point cloud contents are vital for a wide range of…

Multimedia · Computer Science 2024-08-14 Evangelos Alexiou , Xuemei Zhou , Irene Viola , Pablo Cesar

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

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

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

Although large multi-modality models (LMMs) have seen extensive exploration and application in various quality assessment studies, their integration into Point Cloud Quality Assessment (PCQA) remains unexplored. Given LMMs' exceptional…

Computer Vision and Pattern Recognition · Computer Science 2024-08-07 Zicheng Zhang , Haoning Wu , Yingjie Zhou , Chunyi Li , Wei Sun , Chaofeng Chen , Xiongkuo Min , Xiaohong Liu , Weisi Lin , Guangtao Zhai

The rapid growth of 3D point cloud data, driven by applications in autonomous driving, robotics, and immersive environments, has led to criticals demand for efficient compression and quality assessment techniques. Unlike traditional 2D…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Yiling Xu , Yujie Zhang , Shuting Xia , Kaifa Yang , He Huang , Ziyu Shan , Wenjie Huang , Qi Yang , Le Yang

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

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

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

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

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

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

Three-dimensional (3D) point cloud, as an emerging visual media format, is increasingly favored by consumers as it can provide more realistic visual information than two-dimensional (2D) data. Similar to 2D plane images and videos, point…

Computer Vision and Pattern Recognition · Computer Science 2024-11-13 Wu Chen , Qiuping Jiang , Wei Zhou , Feng Shao , Guangtao Zhai , Weisi Lin

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

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

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

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

Full-reference point cloud quality assessment (FR-PCQA) aims to infer the quality of distorted point clouds with available references. Most of the existing FR-PCQA metrics ignore the fact that the human visual system (HVS) dynamically…

Computer Vision and Pattern Recognition · Computer Science 2024-09-30 Yujie Zhang , Qi Yang , Yiling Xu , Shan Liu

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

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
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