Image processing apparatus, image processing program and...

Details Image processing apparatus, image processing program and... Image processing apparatus, image processing program and...

2007-01-09

2007-01-09

Couso, Jose L. (Department: 2624)

Image analysis

Image compression or coding

Including details of decompression

Reexamination Certificate

active

10372215

ABSTRACT:
To provide an image processing apparatus suitable for simplifying and accelerating a filtering process at the time of decoding an image and implementing an effective filter effect. A deblock filtering process judges whether or not difference values between values of subject pixels v0to v7and values of reference pixels ry0to ry7are exceeding a threshold, performs horizontal filter operation as to the subject pixels v0to v7based solely on the values of the subject pixels v0to v7and the values of the reference pixels rx0and rx1, determines whether or not to perform vertical filter operation as to the subject pixels v0to v7based solely on the judgment result, and performs the vertical filter operation as to the subject pixels v0to v7based solely on the values of the subject pixels v0to v7and the values of the reference pixels ry0to ry7.

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Lee et al., “Loop filtering and post-filtering for low-bit-rates moving picture coding,” Signal Processing: Image Communication 16, pp. 871-890, 2001.

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