Title:
ビデオ管理技術
Document Type and Number:
Japanese Patent JP2010533305
Kind Code:
A
Abstract:
Embodiments of a system (730) that includes one or more integrated circuits are described. During operation, the system transforms (742-1) the video image from an initial brightness domain to a linear brightness domain, which includes a range of brightness values corresponding to substantially equidistant adjacent radiant-power values in a displayed video image. In this linear brightness domain, the system may determine (750) an intensity setting (718) of the light source based on at least a portion of the transformed video image, such as the portion of the transformed video image that includes spatially varying visual information in the video image. Moreover, the system may modify (748) the transformed video image so that a product of the intensity setting and a transmittance associated with the modified video image approximately equals a product of a previous intensity setting and a transmittance associated with the video image. For example, the modification may include changing brightness values in the transformed video image.
Inventors:
Burnricher, Ulrich Ti
Colelet, Barry Jay
Areshi, Victor Yee
Yao, Way H
Chain way
Colelet, Barry Jay
Areshi, Victor Yee
Yao, Way H
Chain way
Application Number:
JP2010515080A
Publication Date:
October 21, 2010
Filing Date:
June 25, 2008
Export Citation:
Assignee:
Apple Inc.
International Classes:
G06T5/00; G09G3/36; G09G3/20; G09G3/34; G09G5/00; G09G5/02; G09G5/06; G09G5/10; G09G5/36; H04N5/66; H04N9/30
Domestic Patent References:
| JP2005249891A | 2005-09-15 | |||
| JP2007148331A | 2007-06-14 | |||
| JPH1165528A | 1999-03-09 | |||
| JP2005346032A | 2005-12-15 | |||
| JP2007140483A | 2007-06-07 | |||
| JPH1165537A | 1999-03-09 | |||
| JPH11296127A | 1999-10-29 | |||
| JP2002099250A | 2002-04-05 |
Attorney, Agent or Firm:
Masaki Yamakawa
Shigeki Yamakawa
Shigeki Yamakawa