Granted Patent B2

US 9,237,358 · App. 13/645,296 · Granted Jan 12, 2016

Abstract

Claims (141)

1. A method of encoding video data, the method comprising:

determining a first prediction type for a block of video data in a P slice;

representing the first prediction type as a P slice prediction type syntax element;

determining a second prediction type for a block of video data in a B slice;

representing the second prediction type as a B slice prediction type syntax element;

determining a third prediction type for a block of video data in an I slice;

representing the third prediction type as an I slice prediction type syntax element;

determining a P slice binarization for the P slice prediction type syntax element using a first binarization mapping;

determining a B slice binarization for the B slice prediction type syntax element using the first binarization mapping;

determining an I slice binarization for the I slice prediction type syntax element using a second binarization mapping, the second binarization mapping being different than the first binarization mapping; and

encoding the video data based on the binarizations of the P slice prediction type syntax element, the B slice prediction type syntax element, and the I slice prediction type syntax element, wherein each of the first prediction type, second prediction type, and third prediction type specifies a respective prediction mode and a respective partition type.

2. The method of claim 1 , wherein encoding the video data comprises:

binarizing the P slice prediction type syntax element with the determined P slice binarization;

binarizing the B slice prediction type syntax element with the determined B slice binarization;

binarizing the I slice prediction type syntax element with the determined I slice binarization;

applying context adaptive binary arithmetic coding (CABAC) to the binarized P slice prediction type syntax element;

applying CABAC to the binarized B slice prediction type syntax element; and

applying CABAC to the binarized I slice prediction type syntax element.

3. The method of claim 1 , wherein the prediction mode includes one of inter-prediction and intra-prediction.

4. The method of claim 1 , wherein the partition type includes one of symmetric partitions and asymmetric partitions.

5. A method of decoding video data, the method comprising:

mapping a binarized P slice prediction type syntax element to a first prediction type using a first binarization mapping for a block of video data in a P slice;

mapping a binarized B slice prediction type syntax element to a second prediction type using the first binarization mapping for a block of video data in a B slice;

mapping a binarized I slice prediction type syntax element to a third prediction type using a second binarization mapping for a block of video data in an I slice, the second binarization mapping being different than the first binarization mapping, wherein each of the first prediction type, second prediction type, and third prediction type specifies a respective prediction mode and a respective partition type; and

decoding the video data based on the mapped first prediction type, second prediction type and third prediction type.

6. The method of claim 5 , further comprising:

receiving a context adaptive binary arithmetic coded P slice prediction type syntax element which indicates the first prediction type for the block of video data in the P slice;

receiving a context adaptive binary arithmetic coded B slice prediction type syntax element which indicates the second prediction type for the block of video data in the B slice; and

receiving a context adaptive binary arithmetic coded I slice prediction type syntax element which indicates the third prediction type for the block of video data in the I slice,

wherein decoding the video data further comprises:

decoding the P slice prediction type syntax element to produce the binarized P slice prediction type syntax element;

decoding the B slice prediction type syntax element to produce the binarized B slice prediction type syntax element; and

decoding the I slice prediction type syntax element to produce the binarized I slice prediction type syntax element.

7. The method of claim 5 , wherein the prediction mode includes one of inter-prediction and intra-prediction.

8. The method of claim 5 , wherein the partition type includes one of symmetric partitions and asymmetric partitions.

9. An apparatus configured to encode video data, the apparatus comprising:

means for determining a first prediction type for a block of video data in a P slice;

means for representing the first prediction type as a P slice prediction type syntax element;

means for determining a second prediction type for a block of video data in a B slice;

means for representing the second prediction type as a B slice prediction type syntax element;

means for determining a third prediction type for a block of video data in an I slice;

means for representing the third prediction type as an I slice prediction type syntax element;

means for determining a P slice binarization for the P slice prediction type syntax element using a first binarization mapping;

means for determining a B slice binarization for the B slice prediction type syntax element using the first binarization mapping;

means for determining an I slice binarization for the I slice prediction type syntax element using a second binarization mapping, the second binarization mapping being different than the first binarization mapping; and

means for encoding the video data based on the binarizations of the P slice prediction type syntax element, the B slice prediction type syntax element, and the I slice prediction type syntax element, wherein each of the first prediction type, second prediction type, and third prediction type specifies a respective prediction mode and a respective partition type.

10. The apparatus of claim 9 , wherein the means for encoding the video data comprises:

means for binarizing the P slice prediction type syntax element with the determined P slice binarization;

means for binarizing the B slice prediction type syntax element with the determined B slice binarization;

means for binarizing the I slice prediction type syntax element with the determined I slice binarization;

means for applying context adaptive binary arithmetic coding (CABAC) to the binarized P slice prediction type syntax element;

means for applying CABAC to the binarized B slice prediction type syntax element; and

means for applying CABAC to the binarized I slice prediction type syntax element.

11. The apparatus of claim 9 , wherein the prediction mode includes one of inter-prediction and intra-prediction.

12. The apparatus of claim 9 , wherein the partition type includes one of symmetric partitions and asymmetric partitions.

13. An apparatus configured to decode video data, the apparatus comprising:

means for mapping a binarized P slice prediction type syntax element to a first prediction type using a first binarization mapping for a block of video data in a P slice;

means for mapping a binarized B slice prediction type syntax element to a second prediction type using the first binarization mapping for a block of video data in a B slice; means for mapping a binarized I slice prediction type syntax element to a third prediction type using a second binarization mapping for a block of video data in an I slice, the second binarization mapping being different than the first binarization mapping, wherein each of the first prediction type, second prediction type, and third prediction type specifies a respective prediction mode and a respective partition type; and

means for decoding the video data based on the mapped first prediction type, second prediction type and third prediction type.

14. The apparatus of claim 13 , further comprising:

means for receiving a context adaptive binary arithmetic coded P slice prediction type syntax element which indicates the first prediction type for the block of video data in the P slice;

means for receiving a context adaptive binary arithmetic coded B slice prediction type syntax element which indicates the second prediction type for the block of video data in the B slice; and

means for receiving a context adaptive binary arithmetic coded I slice prediction type syntax element which indicates the third prediction type for the block of video data in the I slice,

wherein the means for decoding the video data further comprises:

means for decoding the P slice prediction type syntax element to produce the binarized P slice prediction type syntax element;

means for decoding the B slice prediction type syntax element to produce the binarized B slice prediction type syntax element; and

means for decoding the I slice prediction type syntax element to produce the binarized I slice prediction type syntax element.

15. The apparatus of claim 13 , wherein the prediction mode includes one of inter-prediction and intra-prediction.

16. The apparatus of claim 13 , wherein the partition type includes one of symmetric partitions and asymmetric partitions.

17. An apparatus configured to encode video data, the apparatus comprising:

a memory configured to store the video data; and

a video encoder configured to:

determine a first prediction type for a block of the video data in a P slice;

represent the first prediction type as a P slice prediction type syntax element;

determine a second prediction type for a block of the video data in a B slice;

represent the second prediction type as a B slice prediction type syntax element;

determine a third prediction type for a block of video data in an I slice;

represent the third prediction type as an I slice prediction type syntax element;

determine a P slice binarization for the P slice prediction type syntax element using a first binarization mapping;

determine a B slice binarization for the B slice prediction type syntax element using the first binarization mapping;

determine an I slice binarization for the I slice prediction type syntax element using a second binarization mapping, the second binarization mapping being different than the first binarization mapping; and

encode the video data based on the binarizations of the P slice prediction type syntax element, the B slice prediction type syntax element, and the I slice prediction type syntax element, wherein each of the first prediction type, second prediction type, and third prediction type specifies a respective prediction mode and a respective partition type.

18. The apparatus of claim 17 , wherein the video encoder is further configured to:

binarize the P slice prediction type syntax element with the determined P slice binarization;

binarize the B slice prediction type syntax element with the determined B slice binarization;

binarize the I slice prediction type syntax element with the determined I slice binarization;

apply context adaptive binary arithmetic coding (CABAC) to the binarized P slice prediction type syntax element; and

apply CABAC to the binarized B slice prediction type syntax element; and

apply CABAC to the binarized I slice prediction type syntax element.

19. The apparatus of claim 17 , wherein the prediction mode includes one of inter-prediction and intra-prediction.

20. The apparatus of claim 17 , wherein the partition type includes one of symmetric partitions and asymmetric partitions.

21. An apparatus configured to decode video data, the apparatus comprising:

a memory configured to store the video data; and

a video decoder configured to:

map a binarized P slice prediction type syntax element to a first prediction type using a first binarization mapping for a block of video data in a P slice;

map a binarized B slice prediction type syntax element to a second prediction type using the first binarization mapping for a block of video data in a B slice;

map a binarized I slice prediction type syntax element to a third prediction type using a second binarization mapping for a block of video data in an I slice, the second binarization mapping being different than the first binarization mapping, wherein each of the first prediction type, second prediction type, and third prediction type specifies a respective prediction mode and a respective partition type; and

decode the video data based on the mapped first prediction type, second prediction type and third prediction type.

22. The apparatus of claim 21 , wherein the video decoder is further configured to:

receive a context adaptive binary arithmetic coded P slice prediction type syntax element which indicates the first prediction type for the block of video data in the P slice;

receive a context adaptive binary arithmetic coded B slice prediction type syntax element which indicates the second prediction type for the block of video data in the B slice;

receive a context adaptive binary arithmetic coded I slice prediction type syntax element which indicates the third prediction type for the block of video data in the I slice;

decode the P slice prediction type syntax element to produce the binarized P slice prediction type syntax element;

decode the B slice prediction type syntax element to produce the binarized B slice prediction type syntax element; and

decode the I slice prediction type syntax element to produce the binarized I slice prediction type syntax element.

23. The apparatus of claim 21 , wherein the prediction mode includes one of inter-prediction and intra-prediction.

24. The apparatus of claim 21 , wherein the partition type includes one of symmetric partitions and asymmetric partitions.

25. A non-transitory computer-readable storage medium storing instructions that, when executed, cause one or more processors configured to encode video data to:

determine a first prediction type for a block of video data in a P slice;

represent the first prediction type as a P slice prediction type syntax element;

determine a second prediction type for a block of video data in a B slice;

represent the second prediction type as a B slice prediction type syntax element;

determine a third prediction type for a block of video data in an I slice;

represent the third prediction type as an I slice prediction type syntax element;

determine a P slice binarization for the P slice prediction type syntax element using a first binarization mapping;

determine a B slice binarization for the B slice prediction type syntax element using the first binarization mapping;

determine an I slice binarization for the I slice prediction type syntax element using a second binarization mapping, the second binarization mapping being different than the first binarization mapping; and

encode the video data based on the binarizations of the P slice prediction type syntax element, the B slice prediction type syntax element, and the I slice prediction type syntax element, wherein each of the first prediction type, second prediction type, and third prediction type specifies a respective prediction mode and a respective partition type.

26. The non-transitory computer-readable storage medium of claim 25 , wherein the instructions further cause the one or more processors to:

binarize the P slice prediction type syntax element with the determined P slice binarization;

binarize the B slice prediction type syntax element with the determined B slice binarization;

binarize the I slice prediction type syntax element with the determined I slice binarization;

apply context adaptive binary arithmetic coding (CABAC) to the binarized P slice prediction type syntax element;

apply CABAC to the binarized B slice prediction type syntax element; and

apply CABAC to the binarized I slice prediction type syntax element.

27. The non-transitory computer-readable storage medium of claim 25 , wherein the prediction mode includes one of inter-prediction and intra-prediction.

28. The non-transitory computer-readable storage medium of claim 25 , wherein the partition type includes one of symmetric partitions and asymmetric partitions.

29. A non-transitory computer-readable storage medium storing instructions that, when executed, cause one or more processors configured to decode video data to:

map a binarized P slice prediction type syntax element to a first prediction type using a first binarization mapping for a block of video data in a P slice;

map a binarized B slice prediction type syntax element to a second prediction type using the first binarization mapping for a block of video data in a B slice;

map a binarized I slice prediction type syntax element to a third prediction type using a second binarization mapping for a block of video data in an I slice, the second binarization mapping being different than the first binarization mapping, wherein each of the first prediction type, second prediction type, and third prediction type specifies a respective prediction mode and a respective partition type; and

decode the video data based on the mapped first prediction type, second prediction type and third prediction type.

30. The non-transitory computer-readable storage medium of claim 29 , wherein the instructions further cause the one or more processors to:

receive a context adaptive binary arithmetic coded P slice prediction type syntax element which indicates the first prediction type for the block of video data in the P slice;

receive a context adaptive binary arithmetic coded B slice prediction type syntax element which indicates the second prediction type for the block of video data in the B slice;

receive a context adaptive binary arithmetic coded I slice prediction type syntax element which indicates the third prediction type for the block of video data in the I slice;

decode the P slice prediction type syntax element to produce the binarized P slice prediction type syntax element;

decode the B slice prediction type syntax element to produce the binarized B slice prediction type syntax element; and

decode the I slice prediction type syntax element to produce the binarized I slice prediction type syntax element.

31. The non-transitory computer-readable storage medium of claim 29 , wherein the prediction mode includes one of inter-prediction and intra-prediction.

32. The non-transitory computer-readable storage medium of claim 29 , wherein the partition type includes one of symmetric partitions and asymmetric partitions.

Assignments (6)