Title:
METHOD AND APPARATUS FOR REPRESENTING IMAGE GRANULARITY BY ONE OR MORE PARAMETERS
Document Type and Number:
WIPO Patent Application WO/2004/105250
Kind Code:
A2
Abstract:
To simulate film grain in a compressed video signal, a decoder (15, 28) receives a message containing information that contains a set of one or more parameters, each specifying certain attribute associated with the film grain. For example, one of the parameters will specify the model used to simulate the film grain, whereas other parameters each specify a particular factor associated with that model. Upon receipt of the message, the decoder selects the model, and simulates the film grain for addition to the video signal following decompression.
More Like This:
Inventors:
GOMILA CRISTINA (US)
KOBILANSKY ALEXANDER (US)
KOBILANSKY ALEXANDER (US)
Application Number:
PCT/US2004/009866
Publication Date:
December 02, 2004
Filing Date:
March 30, 2004
Export Citation:
Assignee:
THOMSON LICENSING SA (FR)
GOMILA CRISTINA (US)
KOBILANSKY ALEXANDER (US)
GOMILA CRISTINA (US)
KOBILANSKY ALEXANDER (US)
International Classes:
G06T5/00; G06T9/00; H04N5/262; (IPC1-7): H03M/
Domestic Patent References:
| WO2002033958A2 | 2002-04-25 |
Foreign References:
| US5641596A | 1997-06-24 | |||
| US20020034337A1 | 2002-03-21 | |||
| US6269180B1 | 2001-07-31 |
Other References:
CAMPISI P ET AL: "Signal-dependent film grain noise generation using homomorphic adaptive filtering" IEE PROCEEDINGS: VISION, IMAGE AND SIGNAL PROCESSING, INSTITUTION OF ELECTRICAL ENGINEERS, GB, vol. 147, no. 3, 23 June 2000 (2000-06-23), pages 283-287, XP006014574 ISSN: 1350-245X
JACKY CHUN KIT YAN ET AL: "Signal-dependent film grain noise removal and generation based on higher-order statistics" HIGHER-ORDER STATISTICS, 1997., PROCEEDINGS OF THE IEEE SIGNAL PROCESSING WORKSHOP ON BANFF, ALTA., CANADA 21-23 JULY 1997, LOS ALAMITOS, CA, USA,IEEE COMPUT. SOC, US, 21 July 1997 (1997-07-21), pages 77-81, XP010239820 ISBN: 0-8186-8005-9
JACKY CHUN KIT YAN ET AL: "Signal-dependent film grain noise removal and generation based on higher-order statistics" HIGHER-ORDER STATISTICS, 1997., PROCEEDINGS OF THE IEEE SIGNAL PROCESSING WORKSHOP ON BANFF, ALTA., CANADA 21-23 JULY 1997, LOS ALAMITOS, CA, USA,IEEE COMPUT. SOC, US, 21 July 1997 (1997-07-21), pages 77-81, XP010239820 ISBN: 0-8186-8005-9
Attorney, Agent or Firm:
Tripoli, Joseph S. (Two Independence Way Suite #20, Princeton NJ, US)
Download PDF:
Previous Patent: VOLTAGE SHIFT CONTROL CIRCUIT FOR PLL
Next Patent: COORDINATION OF BEAM FORMING IN WIRELESS COMMUNICATION SYSTEMS
Next Patent: COORDINATION OF BEAM FORMING IN WIRELESS COMMUNICATION SYSTEMS