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Performance Evaluation of the Codec Agnostic Approach in MPEG-I Video-Based Point Cloud Compression

2021; Institute of Electrical and Electronics Engineers; Volume: 9; Linguagem: Inglês

10.1109/access.2021.3137036

2169-3536

Tianyu Dong, Kyutae Kim, Euee S. Jang,

3D Shape Modeling and Analysis

In this study, we evaluated the codec agnostic approach of video-based point cloud compression (V-PCC) by applying several video codecs to V-PCC. The main concept of V-PCC is to use a video codec to compress the 2D patch images generated from the 3D point cloud. As a new immersive media standard of the Moving Picture Experts Group (MPEG), V-PCC is designed to support the codec agnostic approach, which can be employed to compress point cloud data by using any video codec. At present, the V-PCC reference software is designed by using MPEG High-Efficiency Video Coding. We extended the evaluation of the video codec applicability for PCC with well-known MPEG video coding standards, such as Advanced Video Coding, Essential Video Coding, and Versatile Video Coding. During the evaluation, we identified several key strategies for applying a video codec to V-PCC to maximize compression efficiency or computational complexity. Furthermore, the coding efficiency and time complexity of each codec were tested. The evaluation tests revealed that V-PCC supports the codec agnostic approach and that the performance of the video codec has a positive correlation with the V-PCC final coding efficiency. Reviewing these key strategies would help to develop V-PCC with different video codecs based on their profiles and levels.