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1. WO2020064376 - APPARATUS AND METHOD FOR GENERATING AND RENDERING A VIDEO STREAM

Publication Number WO/2020/064376
Publication Date 02.04.2020
International Application No. PCT/EP2019/074606
International Filing Date 16.09.2019
IPC
H04N 21/218 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
21Server components or server architectures
218Source of audio or video content, e.g. local disk arrays
H04N 19/597 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
597specially adapted for multi-view video sequence encoding
CPC
H04N 19/105
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
105Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
H04N 19/162
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
134characterised by the element, parameter or criterion affecting or controlling the adaptive coding
162User input
H04N 19/169
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
H04N 19/30
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
30using hierarchical techniques, e.g. scalability
H04N 19/597
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
597specially adapted for multi-view video sequence encoding
H04N 21/21805
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
21Server components or server architectures
218Source of audio or video content ; , e.g. local disk arrays
21805enabling multiple viewpoints, e.g. using a plurality of cameras
Applicants
  • KONINKLIJKE PHILIPS N.V. [NL]/[NL]
Inventors
  • SONNEVELDT, Bartolomeus, Wilhelmus, Damianus
  • VAREKAMP, Christiaan
Agents
  • PHILIPS INTELLECTUAL PROPERTY & STANDARDS
Priority Data
18196433.925.09.2018EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS AND METHOD FOR GENERATING AND RENDERING A VIDEO STREAM
(FR) APPAREIL ET PROCÉDÉ DE GÉNÉRATION ET DE RENDU D’UN FLUX VIDÉO
Abstract
(EN)
An apparatus comprises a processor (301) providing a plurality of reference video streams for a plurality of reference viewpoints for a scene. A receiver (305) receives a viewpoint request from a remote client where the viewpoint request is indicative of a requested viewpoint. A generator (303) generates an output video stream comprising a first video stream with frames from a first reference video stream and a second video stream with frames from a second reference video stream. The frames of the second video stream are differentially encoded relative to the frames of the first video stream. A controller (307) selects the reference video stream for the first and second video streams in response to the viewpoint request and may be arranged to swap the reference video streams between being non-differentially encoded and being differentially encoded when the viewpoint request meets a criterion.
(FR)
Un appareil comprend un processeur (301) fournissant une pluralité de flux vidéo de référence pour une pluralité de points de vue de référence pour une scène. Un récepteur (305) reçoit, en provenance d’un client distant, une demande de point de vue, la demande de point de vue indiquant un point de vue demandé. Un générateur (303) génère un flux vidéo de sortie, comprenant un premier flux vidéo avec des trames provenant d’un premier flux vidéo de référence, et un second flux vidéo avec des trames provenant d’un second flux vidéo de référence. Les trames du second flux vidéo sont codées de manière différente par rapport aux trames du premier flux vidéo. Un contrôleur (307) sélectionne le flux vidéo de référence pour les premier et second flux vidéo en réponse à la demande de point de vue et peut être conçu pour permuter les flux vidéo de référence pour que ceux-ci soient des flux non codés de manière différente ou des flux codés de manière différente lorsque la demande de point de vue satisfait un critère.
Also published as
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