The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
몰입형 비디오 코딩을 위한 MIV(MPEG Immersive Video) 표준은 제한된 6D 공간에서 서로 다른 위치에서 획득한 다시점 비디오를 효율적으로 압축하여 사용자에게 6DoF(3 자유도)의 시점 위치 및 방향에 대한 몰입감을 제공합니다. TMIV(Test Model for Immersive Video)라는 MIV 참조 소프트웨어에서는 인터뷰 중복을 제거하여 압축 및 전송되는 픽셀 수가 줄어듭니다. 따라서 각 픽셀의 유효 여부를 나타내는 점유 정보도 뷰포트 렌더링을 위해 디코더로 전송되어야 합니다. 점유 정보는 지오메트리 아틀라스에 내장되어 디코더 측으로 전송됩니다. 이때, 지오메트리 아틀라스 압축 시 발생할 수 있는 점유 오류를 방지하기 위해 깊이 다이내믹 레인지에 가드 밴드를 설정한다. 이 가드 밴드를 줄이면 깊이 표현을 위해 더 넓은 동적 범위를 허용하여 렌더링 품질을 향상시킬 수 있습니다. 따라서 본 논문에서는 현재 TMIV의 점유 오차 분석을 기반으로 CG(Computer-Generated) 시퀀스의 경우 깊이 동적 범위 확장을 허용하는 두 가지 점유 오차 보정 방법을 제시한다. 실험 결과는 제안하는 방법이 기존 TMIV에 비해 평균 2.2%의 BD-rate CG용 비트 절약을 제공함을 보여준다.
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
몰입형 비디오 코딩(MIV), VR, 6자유도, TMIV, 점유 지도
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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
부
@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},}
부
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 -