Image encoding apparatus and method, program and recording...

Details Image encoding apparatus and method, program and recording... Image encoding apparatus and method, program and recording...

2008-04-08

2008-04-08

Wu, Jingge (Department: 2624)

Image analysis

Image compression or coding

Transform coding

C382S232000, C382S239000, C375S240200, C375S240020

Reexamination Certificate

active

07356191

ABSTRACT:
In an image encoder is provided, including a to-be-encoded object prediction unit which counts quantization coefficients which are newly made significant, for example, when each bit plane is encoded, on the basis of quantization coefficient for each bit plane in all code blocks to provide a feature amount, estimates the number of generated codes on the basis of the feature amount, and adds the estimated number of codes in a predetermined order. When an initial target number of codes is reached, the to-be-encoded object prediction unit stops the addition, and supplies the entropy encoder with information on the bit planes having the quantization coefficients thereof been added as to-be-encoded object information. In this entropy encoder, only the quantization coefficient in the bit planes represented by the to-be-encoded object information, is processed by three types of encoding passes while truncating the quantization coefficients of the other bit planes.

REFERENCES:
patent: 5926222 (1999-07-01), Nickerson
patent: 6356665 (2002-03-01), Lei et al.
patent: 6876700 (2005-04-01), Sugahara
patent: 2004/0252893 (2004-12-01), Togashi
patent: 11-225335 (1999-08-01), None
patent: 2002-165098 (2002-06-01), None
patent: 2003-032680 (2003-01-01), None
patent: 2004-064104 (2004-02-01), None
U.S. Appl. No. 10/691,650, filed Oct. 24, 2003, Fukuhara et al.
U.S. Appl. No. 10/724,102, filed Dec. 1, 2003, Hosaka et al.
U.S. Appl. No. 10/724,102, filed Dec. 1, 2003, Hosaka et al.
U.S. Appl. No. 10/933,274, filed Sep. 3, 2004, Fukuhara et al.

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