Title:
METHOD AND DEVICE FOR CONTROLLING GRADATION DISPLAY OF STEREOSCOPIC IMAGE
Document Type and Number:
Japanese Patent JP3816673
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To make it difficult to recognize generation of picture quality interference like a dot pattern at the time of a stereoscopic display by individually controlling changes in the spatial density of brightness between images for the right and left eyes by mutually different methods.
SOLUTION: Respective digital signals converted from picture signals for the right and left eyes by A/D converters 1-R, 1-L are supplied to respective inverse gamma correction circuits 3-R, 3-L. Output signals from these circuits 3-R, 3-L are supplied to a gradation display control part 4. The control part 4 is a pseudo gradation preparing circuit part for falsely displaying the gradation of pictures for the right and left eyes which can not be originally displayed by a picture display device in accordance with changes in the spatial density of brightness of the display device. The control part 4 disperses errors on the pictures for the right and left eyes not by the same method but by mutually different methods.
Inventors:
Koichi Hamada
Taiichiro Kurita
Taiichiro Kurita
Application Number:
JP21266098A
Publication Date:
August 30, 2006
Filing Date:
July 28, 1998
Export Citation:
Assignee:
Japan Broadcasting Corporation
International Classes:
G09G3/36; H04N13/04; G06T5/00; G09G3/20; G09G5/00; G09G5/36; (IPC1-7): H04N13/04; G06T5/00; G09G3/20; G09G3/36; G09G5/00; G09G5/36
Domestic Patent References:
| JP8234705A | ||||
| JP9311669A | ||||
| JP9198000A | ||||
| JP62196618A | ||||
| JP8248392A |
Attorney, Agent or Firm:
Kosaku Sugimura
Hiroshi Tokunaga
Kazuaki Takami
Umemoto Masao
Juno Aoki
Shiro Fujitani
Hiroshi Tokunaga
Kazuaki Takami
Umemoto Masao
Juno Aoki
Shiro Fujitani