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1. (WO2004095829) TECHNIQUE FOR SIMULATING FILM GRAIN ON ENCODED VIDEO
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2004/095829 International Application No.: PCT/US2004/005365
Publication Date: 04.11.2004 International Filing Date: 24.02.2004
IPC:
H04B 1/66 (2006.01) ,H04N 5/262 (2006.01) ,H04N 7/12 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
1
Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
66
for reducing bandwidth of signals; for improving efficiency of transmission
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
222
Studio circuitry; Studio devices; Studio equipment
262
Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
7
Television systems
12
Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
Applicants:
GOMILA, Cristina [ES/US]; US (UsOnly)
BOYCE, Jill, MacDonald [US/US]; US (UsOnly)
THOMSON LICENSING S.A. [FR/FR]; 46, quai A. Le Gallo F-92648 Boulogne, FR (AllExceptUS)
Inventors:
GOMILA, Cristina; US
BOYCE, Jill, MacDonald; US
Agent:
TRIPOLI, Joseph, S. ; Thomson Licensing Inc. Two Independence Way, Suite #200 Princeton, NJ 08540, US
Priority Data:
60/462,38910.04.2003US
Title (EN) TECHNIQUE FOR SIMULATING FILM GRAIN ON ENCODED VIDEO
(FR) TECHNIQUE DE SIMULATION DE GRAIN SUR UNE VIDEO CODEE
Abstract:
(EN) Simulating film grain in an encoded image occurs by extracting the film grain and then characterizing the film grain for encoding in a video stream to enable the film grain restoration upon decoding. Typically, the film grain is characterized based either on the type of film, or by using a particular model. In practice, the film grain particulars are transmitted as parallel information to the video coded stream, typically as a film grain Supplemental Enhancement Information (SEI) message when using the ITU T H.264 video coding standard.
(FR) L'invention concerne la simulation de grain dans une image codée survenant par extraction du grain, puis par caractérisation de celui-ci afin de le coder dans un flux vidéo en vue de permettre la restauration du grain lors du décodage. De manière générale, le grain est caractérisé soit par le type de film, soit au moyen d'un modèle particulier. Dans la pratique, les caractéristiques du grain sont transmises en tant qu'informations parallèles vers le flux vidéo codé, généralement sous forme de message d'informations d'amélioration supplémentaire du grain (SEI) lors de l'utilisation de la norme de codage vidéo UIT T H.264.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)