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METHOD OF IMPLEMENTING INTRA PREDICTION COMPUTATION APPLIED TO H.264 DIGITAL VIDEO CODING AND DEVICE
METHOD OF IMPLEMENTING INTRA PREDICTION COMPUTATION APPLIED TO H.264 DIGITAL VIDEO CODING AND DEVICE
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机译：实现用于H.264数字视频编码和设备的帧内预测计算的方法
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摘要
The present invention provides a method of implementing an intra prediction computation applied to the H.264 digital video coding and a device. The method according to present invention of implementing the intra prediction computation applied to the H.264 video coding comprises selecting an image block to be intra-predicted and extracting the neighboring pixel values of said block; determining the prediction mode of said block, and perform first adding operation on said neighboring pixel values when the prediction mode is one of Diagonal_Down_Left, Diagonal_Down_Right, Vertical_Right, Horizontal_Down, Vertical_Left, and Horizontal_Up; performing first shifting operation and second adding operation on the result of first adding operation respectively; performing second shifting operation on the result of second adding operation; selecting a corresponding value to output from the results of first and second shifting operation according to said prediction mode and size of block. The method and circuit device according to present invention will decrease most of the repeated calculations and improve the efficiency without greatly increasing the required chip real estate area.
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