ADAPTIVE DEPTH GUARD BAND

WIPO Patent Application WO/2021/064289

A3

Apparatuses, methods, and computer programs are disclosed for an adaptive depth guard band. An example apparatus includes means for signaling a depth start of a patch data unit of a patch of data content based on an identifier of a tile and a patch index (802); wherein the depth start is used to derive a range of at least one depth value for the patch based on the patch index in a tile having the identifier (804); and means for signaling a depth threshold of an immersive video extension of the patch data unit (806); wherein the depth threshold specifies a threshold below which an occupancy value is defined to be unoccupied for the patch based on the patch index (806). The apparatus may further include means for encoding or decoding a three-dimensional model based on the depth start and the depth threshold.

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ROIMELA KIMMO (FI)
ILOLA LAURI (DE)
MALAMAL VADAKITAL VINOD (FI)

PCT/FI2020/050643

May 14, 2021

September 30, 2020

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NOKIA TECHNOLOGIES OY (FI)

H04N13/161; G06T15/20; H04N13/178; H04N19/70; H04N13/128; H04N19/597

WO2019158821A1

2019-08-22

S. SCHWARZ (NOKIA), M. M. HANNUKSELA (NOKIA), V. FAKOUR-SEVOM, N. SHEIKI-POUR, V. MALAMALVADAKITAL, A. AMINLOU: "Nokia's response to CfP for Point Cloud Compression (Category 2)", 120. MPEG MEETING; 20171023 - 20171027; MACAU; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11), 17 October 2017 (2017-10-17), pages 1 - 22, XP030070121
ANONYMOUS: "Working Draft 1 of Metadata for Immersive Media (Video)", 126. MPEG MEETING; 20190325 - 20190329; GENEVA; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11), 26 April 2019 (2019-04-26), pages 1 - 33, XP030208733
ANONYMOUS: "Text of ISO/IEC CD 23090-10 Carriage of PC data", 127. MPEG MEETING; 20190708 - 20190712; GOTHENBURG; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11), 21 September 2019 (2019-09-21), pages 1 - 21, XP030206798
KIMMO ROIMELA (NOKIA), VINOD KUMAR MALAMAL VADAKITAL, LAURI ILOLA: "[MPEG-I Visual] Adaptive multiplexing of occupancy and depth in IV", 128. MPEG MEETING; 20191007 - 20191011; GENEVA; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11), 2 October 2019 (2019-10-02), pages 1 - 6, XP030221284

NOKIA TECHNOLOGIES OY et al. (FI)

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