Title:
IMAGE PROCESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/066836
Kind Code:
A1
Abstract:
To obtain an image processing device that allows picture quality and amount of delay to be appropriately adjusted in accordance with image playback conditions. The image processing device (1) comprises: an encoder (2) for performing an encoding process, which includes the process of quantizing an image signal; and a controller (3) for controlling quantization parameters in the quantization process. The controller (3) determines the quantization parameters for the current macroblocks to be processed. The determination is made on the basis of the difference between the target code amount per prescribed number (Z) of macroblocks and the generated code amount related to a predetermined number of macroblocks processed immediately prior. Thus, the prescribed number (Z) can be variably set by the controller (3).
Inventors:
TATSUKA TOSHIMITSU (JP)
HASEGAWA HIROMU (JP)
KOMURO TAKEAKI (JP)
YAMADA MASATO (JP)
HASEGAWA HIROMU (JP)
KOMURO TAKEAKI (JP)
YAMADA MASATO (JP)
Application Number:
PCT/JP2011/069340
Publication Date:
May 24, 2012
Filing Date:
August 26, 2011
Export Citation:
Assignee:
MEGACHIPS CORP (JP)
TATSUKA TOSHIMITSU (JP)
HASEGAWA HIROMU (JP)
KOMURO TAKEAKI (JP)
YAMADA MASATO (JP)
TATSUKA TOSHIMITSU (JP)
HASEGAWA HIROMU (JP)
KOMURO TAKEAKI (JP)
YAMADA MASATO (JP)
International Classes:
H04N19/00; H04N19/126; H04N19/134; H04N19/14; H04N19/146; H04N19/149; H04N19/176; H04N19/196; H04N19/80
Foreign References:
| JP2001169281A | 2001-06-22 | |||
| JPH1155671A | 1999-02-26 | |||
| JPH07212755A | 1995-08-11 |
Attorney, Agent or Firm:
TAKAO, KENGO (JP)
Kengo Takao (JP)
Kengo Takao (JP)
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Claims:
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