[Mp4-tech] a fast intra-coding algorithm for sale
Changhsu Lee
changhsu25 gmail.com
Mon Mar 12 16:50:52 EDT 2007
This is a fast intra-coding algorithm, taking advantage of both
temporal and spacial redundance, for encoding only. It is a generic
algorithm, not confined to specific coding standards, such as h264,
AVS or other coding standards in the future. It might be helpful for
soft encoder, video conference software, IM, camera and cell phone or
any other video collection devices. The patent was filed last year. I
am self-employed and the only applicant and owner of the patent. I
intend to sell all the rights related to the patent for $20k,
including PCT priority right. I didn't translate the whole document
into English, just a brief description. Any questions or comments, let
me know please.
Here is main flow of the algorithm. There are some other variations of
the algorithm that I will not mention for concision.
1. For intra frames: compare the pixels of current_mb with pixels of
the same location(previous_mb) in a preious intra-coded frame
(possibly with neighbor pixels together, or compare the pixel pattern)
2. If the difference < threshold, coding current_mb with the
intra-mode of previous_mb, or simply copy the bitstream of
previous_mb(depends on the entropy coding scheme).
3 Otherwise do the intra-coding analysis as usual.
Regards
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