Apparatus for re-coding an image signal

Details Apparatus for re-coding an image signal Apparatus for re-coding an image signal

2006-06-13

2006-06-13

Mancuso, Joseph (Department: 2621)

Image analysis

Image compression or coding

Transform coding

C382S235000, C382S250000

Reexamination Certificate

active

07062102

ABSTRACT:
An apparatus for re-coding an image signal, which conducts re-coding processing using a decoded image signal subjected to coding processing as an input image signal, includes: a DCT unit for subjecting the input image signal to a discrete cosine transform (DCT); a DCT coefficient counter for counting a feature amount on a picture basis using a DCT coefficient output from the DCT unit; a picture type detector for detecting a picture type in coding processing in a previous stage, using the feature amount output from the DCT coefficient counter; a coding control portion for determining coding parameters in re-coding in accordance with detection results of the picture type detector; and a coding portion for conducting re-coding processing, using the coding parameters determined by the coding control portion.

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