ZTE Communications ›› 2023, Vol. 21 ›› Issue (4): 3-16.DOI: 10.12142/ZTECOM.202304002

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Perceptual Quality Assessment for Point Clouds : A Survey

ZHOU Yingjie(), ZHANG Zicheng(), SUN Wei, MIN Xiongkuo, ZHAI Guangtao   

  1. Institute of Image Communication and Network Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2023-10-07 Online:2023-12-07 Published:2023-12-07
  • About author:ZHOU Yingjie (zyj2000@sjtu.edu.cn) received his BE degree in electronics and information engineering from China University of Mining and Technology in 2023. He is currently pursuing a PhD degree at the Institute of Image Communication and Network Engineering, Shanghai Jiao Tong University, China. His current research interests include 3D quality assessment and virtual digital human.
    ZHANG Zicheng (zzc1998@sjtu.edu.cn) received his BE degree from Shanghai Jiao Tong University, China in 2020 and he is currently pursuing a PhD degree at the Institute of Image Communication and Network Engineering, Shanghai Jiao Tong University. His research interest include image quality assessment, video quality assessment, and 3D visual quality assessment.
    SUN Wei received his BE degree from the East China University of Science and Technology, China in 2016. He is currently pursuing a PhD degree at the Institute of Image Communication and Network Engineering, Shanghai Jiao Tong University, China. His research interests include image quality assessment, perceptual signal processing, and mobile video processing.
    MIN Xiongkuo received his BE degree from Wuhan University, China in 2013, and PhD degree from Shanghai Jiao Tong University, China in 2018. From January 2016 to January 2017, he was a visiting student with the University of Waterloo, Canada. From June 2018 to September 2021, he was a postdoctoral researcher with Shanghai Jiao Tong University. From January 2019 to January 2021, he was a visiting postdoctoral researcher with The University of Texas at Austin, USA and the University of Macau, China. He is currently a tenure-track associate professor with the Institute of Image Communication and Network Engineering, Shanghai Jiao Tong University. His research interests include image/video/audio quality assessment, quality of experience, visual attention modeling, extended reality, and multimodal signal processing.
    ZHAI Guangtao received his BE and ME degrees from Shandong University, China in 2001 and 2004, respectively, and PhD degree from Shanghai Jiao Tong University, China in 2009. From 2008 to 2009, he was a visiting student with the Department of Electrical and Computer Engineering, McMaster University, Canada, where he was a postdoctoral fellow from 2010 to 2012. From 2012 to 2013, he was a Humboldt Research Fellow with the Institute of Multimedia Communication and Signal Processing, Friedrich Alexander University of Erlangen–Nuremberg, Germany. He is currently a professor with the Department of Electronics Engineering, Shanghai Jiao Tong University. He has published more than 100 journal articles on the topics including visual information acquisition, image processing, and perceptual signal processing.

Abstract:

A point cloud is considered a promising 3D representation that has achieved wide applications in several fields. However, quality degradation inevitably occurs during its acquisition and generation, communication and transmission, and rendering and display. Therefore, how to accurately perceive the visual quality of point clouds is a meaningful topic. In this survey, we first introduce the point cloud to emphasize the importance of point cloud quality assessment (PCQA). A review of subjective PCQA is followed, including common point cloud distortions, subjective experimental setups and subjective databases. Then we review and compare objective PCQA methods in terms of model-based and projection-based. Finally, we provide evaluation criteria for objective PCQA methods and compare the performances of various methods across multiple databases. This survey provides an overview of classical methods and recent advances in PCQA.

Key words: point cloud quality assessment, PCQA databases, subjective quality assessment, objective quality assessment