EP 3782368 A4 20211208 - PROCESSING VIDEO PATCHES FOR THREE-DIMENSIONAL CONTENT
Title (en)
PROCESSING VIDEO PATCHES FOR THREE-DIMENSIONAL CONTENT
Title (de)
VERARBEITUNG VON VIDEOPATCHES FÜR DREIDIMENSIONALE INHALTE
Title (fr)
TRAITEMENT DE CORRECTIFS VIDÉO POUR UN CONTENU TRIDIMENSIONNEL
Publication
Application
Priority
- GB 201806370 A 20180419
- FI 2019050297 W 20190412
Abstract (en)
[origin: GB2572996A] A plurality of patches (61, 62) (e.g. volumetric pixels, points of a point cloud or mesh) representing part of a volumetric scene are provided, along with patch visibility information for each patch indicative of directions from which a forward surface of the patch is visible. One or more viewing positions (60) associated with a client device (V) are provided, and the patch(es) are processed dependent on whether the patch visibility information indicates that the forward surface of the patch(es) is visible from the viewing position(s). If rear-facing (e.g. patch 61), a patch may not be rendered, or may not be transmitted to a client. Providing the patches may comprise estimating surface normals from points of a volumetric scene, and grouping together points having similar surface normals to provide a given patch. Metadata (e.g. SEI messages, manifest or descriptor of media content) indicative of the patch visibility may be transmitted to the client device.
IPC 8 full level
H04N 19/597 (2014.01); G06T 3/00 (2006.01); G06T 15/20 (2011.01); G06T 15/40 (2011.01); G06T 19/00 (2011.01); H04N 13/178 (2018.01); H04N 19/167 (2014.01); H04N 19/17 (2014.01); H04N 21/218 (2011.01); H04N 21/2343 (2011.01); H04N 21/262 (2011.01); H04N 21/2662 (2011.01); H04N 21/4402 (2011.01); H04N 21/462 (2011.01); H04N 21/482 (2011.01); H04N 21/81 (2011.01); H04N 21/845 (2011.01); H04N 21/854 (2011.01)
CPC (source: EP GB)
G06T 15/04 (2013.01 - EP); G06T 15/40 (2013.01 - EP GB); H04N 13/111 (2018.04 - GB); H04N 13/178 (2018.04 - EP GB); H04N 13/275 (2018.04 - GB); H04N 13/388 (2018.04 - EP); H04N 19/46 (2014.11 - EP); H04N 19/597 (2014.11 - EP); H04N 19/70 (2014.11 - EP); H04N 21/21805 (2013.01 - EP); H04N 21/2343 (2013.01 - EP); H04N 21/26258 (2013.01 - EP); H04N 21/2662 (2013.01 - EP); H04N 21/4402 (2013.01 - EP); H04N 21/4621 (2013.01 - EP); H04N 21/4825 (2013.01 - EP); H04N 21/816 (2013.01 - EP); H04N 21/8456 (2013.01 - EP); H04N 21/85406 (2013.01 - EP); H04N 19/132 (2014.11 - EP); H04N 19/167 (2014.11 - EP); H04N 19/17 (2014.11 - EP)
Citation (search report)
- [I] US 2012147005 A1 20120614 - TSAI TSUNG-YU [TW], et al
- [I] US 2015199383 A1 20150716 - ROIMELA KIMMO T [FI]
- [I] US 5357600 A 19941018 - SHIRMAN LEON A [US], et al
- [I] US 2016125649 A1 20160505 - JEONG MINKYU [KR], et al
- [A] GB 2547689 A 20170830 - NOKIA TECHNOLOGIES OY [FI]
- [A] US 2016224856 A1 20160804 - PARK YOUNGMIN [AT], et al
- [A] WO 2017140945 A1 20170824 - NOKIA TECHNOLOGIES OY [FI]
- See references of WO 2019202207A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
GB 201806370 D0 20180606; GB 2572996 A 20191023; EP 3782368 A1 20210224; EP 3782368 A4 20211208; WO 2019202207 A1 20191024
DOCDB simple family (application)
GB 201806370 A 20180419; EP 19789175 A 20190412; FI 2019050297 W 20190412