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Patent Searching and Data


Title:
CODING METHOD AND CODING DEVICE
Document Type and Number:
Japanese Patent JP2008259217
Kind Code:
A
Abstract:

To provide a coding method and a coding device capable of more effectively removing redundancy of information included in data (quantized coefficient) to be subjected to variable length coding processing according to characteristics of quantized coefficients and the state of coding processing on the quantized coefficients and then further improving the compression rate for an image signal or the like.

The number of uncoded conversion coefficients as conversion coefficients which are not coded is found, and based upon information on the number of uncoded conversion coefficients, variable length coding of coefficient values of the conversion coefficients is performed.


Inventors:
SUMINO SHINYA
KONDO TOSHIYUKI
HAGAI MAKOTO
ABE SEISHI
Application Number:
JP2008109894A
Publication Date:
October 23, 2008
Filing Date:
April 21, 2008
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H03M7/42; G06T9/00; H04N19/31; G11B20/14; H03M5/14; H03M7/40; H03M7/46; H04N1/41; H04N7/50; H04N19/13; H04N19/134; H04N19/136; H04N19/176; H04N19/18; H04N19/189; H04N19/196; H04N19/60; H04N19/70; H04N19/91; H04N19/93
Attorney, Agent or Firm:
Kenichi Hayase