Enhancement of 3D Point Cloud Contents Using 2D Image Super Resolution Network

Authors

DOI:

https://doi.org/10.13052/jwe1540-9589.21213

Keywords:

Point cloud, Super resolution, Deep learning network, 3D data

Abstract

Media technology has been developed to give users a sense of immersion. Recent media using 3D spatial data, such as augmented reality and virtual reality, has attracted attention. A point cloud is a data format that consists of a number of points, and thus can express 3D media using coordinates and color information for each point. Since a point cloud has a larger capacity than 2D images, a technology to compress the point cloud is required, i.e., standardized in the international standard organization MPEG as a video-based point cloud compression (V-PCC). V-PCC decomposes 3D point cloud data into 2D patches along orthogonal directions, and those patches are placed into a 2D image sequence, and then compressed using existing 2D video codecs. However, data loss may occur while converting a 3D point cloud into a 2D image sequence and encoding this sequence using a legacy video codec. This data loss can cause deterioration in the quality of a reconstructed point cloud. This paper proposed a method of enhancing a reconstructed point cloud by applying a super resolution network to the 2D patch image sequence of a 3D point cloud.

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Author Biographies

Seonghwan Park, Kyung Hee University, Korea

Seonghwan Park received B.S. in digital information engineering from Hankuk University of Foreign Studies, Yongin, South Korea, in 2013 and received M.S. in electronics engineering from Kyung Hee University, Yongin, South Korea, in 2015, where he is currently pursuing the Ph.D. degree in electronics engineering. His current research interests include MPEG systems, point cloud, super resolution and image processing

Junsik Kim, Kyung Hee University, Korea

Junsik Kim received the B.S. and M.S. degrees in electronics engineering from Kyung Hee University, Yongin, South Korea, in 2017 and 2019, respectively, where he is currently pursuing the Ph.D. degree in electronics engineering. His current research interests include point cloud compression, MPEG systems, digital broadcasting technologies, and image processing.

Yonghae Hwang, Kyung Hee University, Korea

Yonghae Hwang received B.S. in astronomy & space science and electronics engineering from Kyung Hee University, Yongin, South Korea, in 2020, where he is currently pursuing M.S. in electronics and information convergence engineering. His current research interests include MPEG 3DG, V-PCC, point cloud and video codec.

Doug Young Suh, Kyung Hee University, Korea

Doug Young Suh (Member, IEEE) received the B.S. degree in nuclear engineering from Seoul National University, Seoul, South Korea, in 1980, and the Ph.D. degree in electrical and computer engineering from the Georgia Institute of Technology, Atlanta, GA, USA, in 1990. In 1990, he joined the Korea Academy of Industry and Technology, and conducted research on HDTV until 1992. Since 1992, he has been a Professor with the College of Electronics and Information, Kyung Hee University, Seoul, South Korea. He has been a Korean Delegate for the ISO/IEC MPEG Forum since 1996. His research interests include networked video and computer games.

Kyuheon Kim, Kyung Hee University, Korea

Kyuheon Kim received the B.S. degree in electronic engineering from Hanyang University, Seoul, South Korea, in 1989, and the M.Phil. and Ph.D. degrees in electrical and electronic engineering from The University of Newcastle, Newcastle upon Tyne, U.K., in 1996. From 1996 to 1997, he was with Sheffield University, U.K., as a Research Fellow. From 1997 to 2006, he was with the Electronics and Telecommunications Research Institute, South Korea, as the Head of the Interactive Media Research Team, where he standardized and developed T-DMB specification, and conducted the Head of Korean delegates for MPEG standard body, from 2001 to 2005. Since 2006, he has conducted research at Kyung Hee University, Seoul. He has published numerous technical articles. His current research interests include interactive media processing, digital signal processing, and digital broadcasting technologies. He was a recipient of the Ministry Award from the Ministry of Information and Communication, in 2003 and the Prime Minister Award, in 2005.

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Published

2022-01-17

Issue

Section

SPECIAL ISSUE ON Future Multimedia Contents and Technology on Web in the 5G Era