Reduced complexity video decoding by reducing the IDCT...

Details Reduced complexity video decoding by reducing the IDCT... Reduced complexity video decoding by reducing the IDCT...

2006-07-18

2006-07-18

Dang, Duy M. (Department: 2627)

Image analysis

Image compression or coding

Including details of decompression

C382S236000

Reexamination Certificate

active

07079692

ABSTRACT:
The present invention is directed to reduced B-frame decoding. According to the present invention, the number of transform coefficients in B-frames are reduced to produce reduced B-frames. Also, inverse scanning and inverse quantization is performed on the reduced B-frames. Further, an inverse transform is performed on the reduced B-frames. In one embodiment of the present invention, the reduced B-frames are produced by identifying blocks associated with the B-frames and selecting transform coefficients included in a predetermined area of the identified blocks.

REFERENCES:
patent: 6025878 (2000-02-01), Boyce et al.

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