EP 1763974 A1 20070321 - AMBIENT LIGHTING DERIVED FROM VIDEO CONTENT AND WITH BROADCAST INFLUENCED BY PERCEPTUAL RULES AND USER PREFERENCES
Title (en)
AMBIENT LIGHTING DERIVED FROM VIDEO CONTENT AND WITH BROADCAST INFLUENCED BY PERCEPTUAL RULES AND USER PREFERENCES
Title (de)
AUS VIDEOINHALT ABGELEITETES UMGEBUNGSLICHT, UND WOBEI DIE AUSSTRAHLUNG DURCH WAHRNEHMUNGSBEZOGENE REGELN UND BENUTZERPRÄFERENZEN BEEINFLUSST WIRD
Title (fr)
ECLAIRAGE AMBIANT DERIVE D'UN CONTENU VIDEO, A DIFFUSION REGIE PAR DES REGLES PERCEPTIVES ET DES PREFERENCES UTILISATEUR
Publication
Application
Priority
- IB 2005052152 W 20050628
- US 58419804 P 20040630
- US 68501605 P 20050526
Abstract (en)
[origin: WO2006003624A1] Extracting video content encoded in a rendered color space for broadcast by an ambient light source, using perceptual rules in concert with user preferences for intelligent dominant color selection. Steps include quantizing the video color space; performing dominant color extraction by using a mode, median, mean, or weighted average of pixel chromaticities; applying perceptual rules to further derive dominant chromaticities via [1] chromaticity transforms; [2] a weighted average using a pixel weighting function influenced by scene content; and [3] extended dominant color extraction where pixel weighting is reduced for majority pixels;[4] Spatial extraction, temporal delivery and luminance perceptual rules; and [5] transforming the dominant color chosen to the ambient light color space using tristimulus matrices All perceptual rules are modulated in response to explicit indicated user preferences obtained via remote controls, sensors, video meta data, or a graphical user interface.
IPC 8 full level
H05B 37/02 (2006.01); H04N 9/64 (2006.01); H04N 21/431 (2011.01)
CPC (source: EP US)
H04N 9/73 (2013.01 - EP US); H05B 47/10 (2020.01 - EP US); H05B 47/165 (2020.01 - EP US); Y02B 20/40 (2013.01 - EP)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006003624 A1 20060112; EP 1763974 A1 20070321; JP 2008505384 A 20080221
DOCDB simple family (application)
IB 2005052152 W 20050628; EP 05756729 A 20050628; JP 2007518799 A 20050628