IEICE TRANSACTIONS on Information
Wider Depth Dynamic Range Using Occupancy Map Correction for Immersive Video Coding
Summary :
The MPEG Immersive Video (MIV) standard for immersive video coding provides users with an immersive sense of 6 degrees of freedom (6DoF) of view position and orientation by efficiently compressing multiview video acquired from different positions in a limited 3D space. In the MIV reference software called Test Model for Immersive Video (TMIV), the number of pixels to be compressed and transmitted is reduced by removing inter-view redundancy. Therefore, the occupancy information that indicates whether each pixel is valid or invalid must also be transmitted to the decoder for viewport rendering. The occupancy information is embedded in a geometry atlas and transmitted to the decoder side. At this time, to prevent occupancy errors that may occur during the compression of the geometry atlas, a guard band is set in the depth dynamic range. Reducing this guard band can improve the rendering quality by allowing a wider dynamic range for depth representation. Therefore, in this paper, based on the analysis of occupancy error of the current TMIV, two methods of occupancy error correction which allow depth dynamic range extension in the case of computer-generated (CG) sequences are presented. The experimental results show that the proposed method gives an average 2.2% BD-rate bit saving for CG compared to the existing TMIV.
- Publication
- IEICE TRANSACTIONS on Information Vol.E106-D No.5 pp.1102-1105
- Publication Date
- 2023/05/01
- Publicized
- 2023/02/10
- Online ISSN
- 1745-1361
- DOI
- 10.1587/transinf.2022EDL8077
- Type of Manuscript
- LETTER
- Category
- Image Processing and Video Processing
Authors
Sung-Gyun LIM
Korea Aerospace University
Dong-Ha KIM
Korea Aerospace University
Kwan-Jung OH
ETRI
Gwangsoon LEE
ETRI
Jun Young JEONG
ETRI
Jae-Gon KIM
Korea Aerospace University
Keyword
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Sung-Gyun LIM, Dong-Ha KIM, Kwan-Jung OH, Gwangsoon LEE, Jun Young JEONG, Jae-Gon KIM, "Wider Depth Dynamic Range Using Occupancy Map Correction for Immersive Video Coding" in IEICE TRANSACTIONS on Information,
vol. E106-D, no. 5, pp. 1102-1105, May 2023, doi: 10.1587/transinf.2022EDL8077.
Abstract: The MPEG Immersive Video (MIV) standard for immersive video coding provides users with an immersive sense of 6 degrees of freedom (6DoF) of view position and orientation by efficiently compressing multiview video acquired from different positions in a limited 3D space. In the MIV reference software called Test Model for Immersive Video (TMIV), the number of pixels to be compressed and transmitted is reduced by removing inter-view redundancy. Therefore, the occupancy information that indicates whether each pixel is valid or invalid must also be transmitted to the decoder for viewport rendering. The occupancy information is embedded in a geometry atlas and transmitted to the decoder side. At this time, to prevent occupancy errors that may occur during the compression of the geometry atlas, a guard band is set in the depth dynamic range. Reducing this guard band can improve the rendering quality by allowing a wider dynamic range for depth representation. Therefore, in this paper, based on the analysis of occupancy error of the current TMIV, two methods of occupancy error correction which allow depth dynamic range extension in the case of computer-generated (CG) sequences are presented. The experimental results show that the proposed method gives an average 2.2% BD-rate bit saving for CG compared to the existing TMIV.
URL: https://global.ieice.org/en_transactions/information/10.1587/transinf.2022EDL8077/_p
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@ARTICLE{e106-d_5_1102,
author={Sung-Gyun LIM, Dong-Ha KIM, Kwan-Jung OH, Gwangsoon LEE, Jun Young JEONG, Jae-Gon KIM, },
journal={IEICE TRANSACTIONS on Information},
title={Wider Depth Dynamic Range Using Occupancy Map Correction for Immersive Video Coding},
year={2023},
volume={E106-D},
number={5},
pages={1102-1105},
abstract={The MPEG Immersive Video (MIV) standard for immersive video coding provides users with an immersive sense of 6 degrees of freedom (6DoF) of view position and orientation by efficiently compressing multiview video acquired from different positions in a limited 3D space. In the MIV reference software called Test Model for Immersive Video (TMIV), the number of pixels to be compressed and transmitted is reduced by removing inter-view redundancy. Therefore, the occupancy information that indicates whether each pixel is valid or invalid must also be transmitted to the decoder for viewport rendering. The occupancy information is embedded in a geometry atlas and transmitted to the decoder side. At this time, to prevent occupancy errors that may occur during the compression of the geometry atlas, a guard band is set in the depth dynamic range. Reducing this guard band can improve the rendering quality by allowing a wider dynamic range for depth representation. Therefore, in this paper, based on the analysis of occupancy error of the current TMIV, two methods of occupancy error correction which allow depth dynamic range extension in the case of computer-generated (CG) sequences are presented. The experimental results show that the proposed method gives an average 2.2% BD-rate bit saving for CG compared to the existing TMIV.},
keywords={},
doi={10.1587/transinf.2022EDL8077},
ISSN={1745-1361},
month={May},}
Copy
TY - JOUR
TI - Wider Depth Dynamic Range Using Occupancy Map Correction for Immersive Video Coding
T2 - IEICE TRANSACTIONS on Information
SP - 1102
EP - 1105
AU - Sung-Gyun LIM
AU - Dong-Ha KIM
AU - Kwan-Jung OH
AU - Gwangsoon LEE
AU - Jun Young JEONG
AU - Jae-Gon KIM
PY - 2023
DO - 10.1587/transinf.2022EDL8077
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E106-D
IS - 5
JA - IEICE TRANSACTIONS on Information
Y1 - May 2023
AB - The MPEG Immersive Video (MIV) standard for immersive video coding provides users with an immersive sense of 6 degrees of freedom (6DoF) of view position and orientation by efficiently compressing multiview video acquired from different positions in a limited 3D space. In the MIV reference software called Test Model for Immersive Video (TMIV), the number of pixels to be compressed and transmitted is reduced by removing inter-view redundancy. Therefore, the occupancy information that indicates whether each pixel is valid or invalid must also be transmitted to the decoder for viewport rendering. The occupancy information is embedded in a geometry atlas and transmitted to the decoder side. At this time, to prevent occupancy errors that may occur during the compression of the geometry atlas, a guard band is set in the depth dynamic range. Reducing this guard band can improve the rendering quality by allowing a wider dynamic range for depth representation. Therefore, in this paper, based on the analysis of occupancy error of the current TMIV, two methods of occupancy error correction which allow depth dynamic range extension in the case of computer-generated (CG) sequences are presented. The experimental results show that the proposed method gives an average 2.2% BD-rate bit saving for CG compared to the existing TMIV.
ER -
English
