Fast encoding method and system using adaptive intra prediction
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United States of America Patent
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Dec 11, 2012
Grant Date -
Dec 3, 2009
app pub date -
Oct 30, 2008
filing date -
May 28, 2008
priority date (Note) -
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Abstract
Fast encoding method and system are provided which can transmit video data in real time using adaptive intra prediction in accordance with the H.264/AVC (Advanced Video Codec) standard so as to efficiently provide security-related images or multimedia images in various network environments with high quality. An intra prediction method of compressing and encoding an image includes the steps of: comparing an SAD value C calculated from macro block data of a present frame and a previous frame with a reference value K to determine a prediction method; and selectively performing on input macro block data a first method of determining a best mode and a block size by prediction in a plurality of prediction modes based on spatial directivity and generating prediction data and a second method of generating prediction data using the best mode and the block size used in the previous frame, depending on the determined prediction method.
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