Mode decision for inter prediction in video coding
View Patent ↗A method for inter-mode prediction in video coding, the method comprising checking a data block of an image for zero motion; computing frame difference of the data block based on the checking for zero motion; and making an inter-mode prediction selection based on the computed frame difference.
1. A method for inter-mode prediction in video coding, the method comprising:
checking a data block of an image for zero motion;
computing frame difference of the data block based on the checking for zero motion; and
making an inter-mode prediction selection based on the computed frame difference,
wherein the inter-mode prediction selection comprises selecting a block size for coding, based on the computed frame difference;
checking a homogeneity of the data block; and
making the inter-mode prediction selection based on the checking of the homogeneity of the data block;
wherein making the inter-mode prediction selection further based on the checking of the homogeneity of the data block further comprises making the inter-mode selection based on intra-mode prediction selection, and wherein the intra-mode prediction selection comprises a vertical versus horizontal intra-mode prediction selection.
2. The method as claimed in claim 1 , wherein the vertical versus horizontal intra-mode prediction selection comprises generating edge directional information of the image, and detecting the direction of one or more edges of the image.
3. The method as claimed in claim 1 , wherein the intra-mode prediction selection is conducted prior to checking the data block of the image for zero motion.
4. The method as claimed in claim 1 , further comprising making the inter-mode prediction selection further based on checking of the homogeneity of subtypes of the data block.
5. The method as claimed in claim 1 , further comprising performing motion estimation on different selected block sizes based on the inter-mode prediction selection.
6. The method as claimed in claim 1 , further comprising performing rate distortion optimization on different selected block sizes based on the inter-mode prediction selection.
7. The method as claimed in claim 1 , wherein the step of checking the data block for zero motion comprises checking if a collocated previous data block has zero motion vector.
8. A system for inter-mode prediction in video coding, the system comprising:
a motion detection unit checking a data block of an image for zero motion; and
a processor unit computing frame difference of the data block based on the checking for zero motion; and making an inter-mode prediction selection based on the computed frame difference,
wherein the inter-mode prediction selection comprises selecting a block size for coding, based on the computed frame difference;
a homogeneity detection unit checking a homogeneity of the data block, and
the processor unit further makes the inter-mode prediction selection based on the checking of the homogeneity of the data block;
wherein, in making the inter-mode prediction selection based on the checking of the homogeneity of the data block, the processor unit further makes the inter-mode selection based on intra-mode prediction selection, and wherein the intra-mode prediction selection comprises a vertical versus horizontal intra-mode prediction selection.
9. The system as claimed in claim 8 , wherein the vertical versus horizontal intra-mode prediction selection comprises generating edge directional information of the image, and detecting the direction of one or more edges of the image.
10. The system as claimed in claim 8 , further comprising making the inter-mode prediction selection based on checking of the homogeneity of subtypes of the data block by the homogeneity detection unit.
11. The system as claimed in claim 8 , wherein the processor unit further performs motion estimation on different selected block sizes based on the inter-mode prediction selection.
12. The system as claimed in claim 8 , wherein the processor unit further performs rate distortion optimization on different selected block sizes based on the inter-mode prediction selection.
13. The system as claimed in claim 8 , wherein the motion detection unit checks if a collocated previous data block has zero motion vector to check for zero motion of the data block.
14. A non-transitory data storage medium having stored thereon computer readable code means for instructing a computer to execute a method for inter-mode prediction in video coding, the method comprising:
checking a data block of an image for zero motion;
computing frame difference of the data block based on the checking for zero motion; and
making an inter-mode prediction selection based on the computed frame difference,
wherein the inter-mode prediction selection comprises selecting a block size for coding, based on the computed frame difference;
checking a homogeneity of the data block, and
making the inter-mode prediction selection based on the checking of the homogeneity of the data block;
wherein the making the inter-mode prediction selection further based on the checking of the homogeneity of the data block further comprises making the inter-mode selection based on intra-mode prediction selection, and wherein the intra-mode prediction selection comprises a vertical versus horizontal intra-mode prediction selection.
15. The data storage medium as claimed in claim 14 , wherein the method further comprises making the inter-mode prediction selection based on checking of the homogeneity of subtypes of the data block by the homogeneity detection unit.
16. The data storage medium as claimed in claim 14 , wherein the checking the data block for zero motion comprises checking if a collocated previous data block has zero motion vector.