Method for processing images
AssigneeBeyond Innovation Technology Co., Ltd.
InventorsChung-Li Shen, Yu-Chieh Chung, Hung-Lin Kuan
Life of this patent
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Abstract
An image processing method is provided. According to the present method, the formulas of the prediction modes of a 4*4 block in intra frame prediction are expanded and applied to 4*4 blocks or 8*8 blocks in a 16*16 block. The prediction modes of the 4*4 blocks or 8*8 blocks in the 16*16 block are determined within one pass, or the prediction modes of the 8*8 blocks in the 16*16 block are determined within three passes. Accordingly, the operation of determining the prediction mode of each 4*4 block is saved, and the time for processing intra frame prediction of the 4*4 blocks is effectively reduced. Eventually, the efficiency of image processing is improved.
Claims42
An image processing method, suitable for processing an image which is divided into a plurality of prediction blocks, comprising:
- a. calculating the sums of squared differences between pixels in the prediction blocks and corresponding marginal pixels under a plurality of prediction modes;
- b. determining the prediction modes for reconstructing the pixels in the prediction blocks according to the result of step a;
- and
- c. reconstructing the pixels in the prediction blocks according to the result of step b.
An image processing method, suitable for processing an image which is divided into a plurality of prediction blocks, comprising:
- a. dividing the prediction blocks into a plurality of domains, wherein each of the domains comprises at least two of the prediction blocks;
- b. regarding one of the domains, calculating the sums of squared differences between pixels in the prediction blocks in the domain and corresponding marginal pixels;
- c. determining the prediction modes for reconstructing the pixels in the prediction blocks in the domain according to the result of step b;
- d. reconstructing the pixels in the prediction blocks in the domain according to the result of step c;
- and
- e. reconstructing pixels in the prediction blocks in a neighboring domain using the reconstructed marginal pixels of the domain according to the result of step d.
An image processing method, suitable for processing an image which is divided into a plurality of prediction blocks, comprising:
- a. dividing the prediction blocks into a plurality of domains, wherein each domain comprises at least two of the prediction blocks;
- b. calculating the sums of squared differences between pixels in the prediction blocks in each of the domains and corresponding marginal pixels under a plurality of prediction modes;
- c. determining the prediction modes for reconstructing the pixels in the prediction blocks in each of the domains according to the result of step b;
- and
- d. reconstructing the pixels in the prediction blocks in each of the domains according to the result of step c.
Dependencies are inferred from the claim text.