Method for video processing, encoder for video processing, and decoder for video processing
A method for video processing, comprising: parsing a first bitstream to determine a first quantized motion feature, wherein the first quantized motion feature is formed from first motion information of a luma current picture, wherein the first motion information is determined based on the luma current picture and first bi-directional predictive (B/P) pictures in a first group of pictures (GOP) based on first sets of reference pictures of the luma current picture; and decoding the first quantized motion feature to form a luma motion information by an MV decoder.
1. A method for video processing, comprising:
parsing a first bitstream to determine a first quantized motion feature, wherein the first quantized motion feature is formed from first motion information of a luma current picture, wherein the first motion information is determined based on the luma current picture and first bi-directional predictive (B/P) pictures in a first group of pictures (GOP) based on first sets of reference pictures of the luma current picture; and
decoding the first quantized motion feature to form a luma motion information by an MV decoder.
2. The method of claim 1 , further comprising:
parsing a second bitstream to determine a second quantized motion feature, wherein the second quantized motion feature is formed from second motion information of a chroma current picture, wherein the second motion information is determined based on the chroma current picture and second B/P pictures in a second GOP based on second sets of reference pictures of the chroma current picture; and
decoding the second quantized motion feature to form a chroma motion information by the MV decoder.
3. The method of claim 2 , further comprising:
decoding the chroma and luma motion information by the MV decoder so as to form a latent motion feature of the luma current picture and the chroma current picture, respectively,
wherein a first compression parameter used by the MV decoder for the luma current picture is different from a second compression parameter used by the MV decoder for the chroma current picture.
4. The method of claim 2 , further comprising:
decoding residual information of the chroma and luma current pictures by a residual decoder so as to form a latent residual feature of the luma current picture and the chroma current picture, respectively,
wherein a first compression parameter used by the residual decoder for the luma current picture is different from a second compression parameter used by the residual decoder for the chroma current picture.
5. The method of claim 1 , wherein the GOP includes a first key picture (x s I ) and a second key picture (x e I ), wherein the first key picture is at a first time prior to the chroma or luma current picture, and wherein the second key picture is at a second time later than the chroma or luma current picture.
6. The method of claim 5 , further comprising:
generating a first reference picture based on the first key picture (x s I ); and
generating a second reference picture based on the second key picture (x e I ).
7. The method of claim 6 , wherein:
the first reference picture is a first reconstructed picture (x s C ) based on the first key picture (x s I ) processed by a better portable graphics (BPG) image compression tool; and
the second reference picture is a second reconstructed picture (x e C ) based on the second key picture (x e I ) processed by the BPG image compression tool.
8. An encoder for video processing, comprising:
a processor;
a memory configured to store instructions, which when executed by the processor, cause the processor to:
separate a video into a chroma component and a luma component;
receive a luma current picture of the luma component of the video;
determine luma bi-directional predictive (B/P) pictures in a group of pictures (GOP) associated with the luma current picture; and
perform a motion estimation (ME) process based on the luma current picture and the luma bi-directional predictive pictures so as to generate luma motion information of the luma current picture.
9. The encoder of claim 8 , wherein the instructions, when executed by the processor, further cause the processor to:
receive a chroma current picture of the chroma component of the video;
determine chroma B/P pictures in a GOP associated with the chroma current picture; and
perform the ME process based on the chroma current picture and the chroma bi-directional predictive pictures so as to generate chroma motion information of the chroma current picture.
10. The encoder of claim 9 , wherein the instructions, when executed by the processor, further cause the processor to:
encode the chroma and luma motion information by a motion vector (MV) encoder so as to form a latent motion feature of the luma current picture and the chroma current picture, respectively,
wherein a first compression parameter used by the MV encoder for the luma current picture is different from a second compression parameter used by the MV encoder for the chroma current picture.
11. The encoder of claim 8 , wherein the GOP includes a first key picture (x s I ) and a second key picture (x e I ), wherein the first key picture is at a first time prior to the chroma or luma current picture, and wherein the second key picture is at a second time later than the chroma or luma current picture.
12. The encoder of claim 11 , wherein the instructions, when executed by the processor, further cause the processor to:
generate a first reference picture based on the first key picture (x s I ); and
generate a second reference picture based on the second key picture (x e I ).
13. The encoder of claim 12 , wherein:
the first reference picture is a first reconstructed picture (x s C ) based on the first key picture (x s I ) processed by a better portable graphics (BPG) image compression tool; and
the second reference picture is a second reconstructed picture (x e C ) based on the second key picture (x e I ) processed by the BPG image compression tool.
14. A decoder for video processing, comprising:
a processor;
a memory configured to store instructions, which when executed by the processor, cause the processor to:
parse a first bitstream to obtain a first quantized motion feature, wherein the first quantized motion feature is formed from first motion information of a luma current picture, wherein the first motion information is determined based on first bi-directional predictive (B/P) pictures in a first group of pictures (GOP) based on first sets of reference pictures of the luma current picture, and wherein the luma current picture is from a luma component separated from a video;
decode the first quantized motion feature to form a luma motion information by an MV decoder.
15. The decoder of claim 14 , wherein the instructions, when executed by the processor, further cause the processor to:
parse a second bitstream to obtain a second quantized motion feature, wherein the second quantized motion feature is formed from second motion information of a chroma current picture, wherein the second motion information is determined based on second B/P pictures in a second GOP based on a second set of reference pictures of the chroma current picture, and wherein the chroma current picture is from a chroma component; and
decode the second quantized motion feature to form a chroma motion information by the MV decoder.
16. The decoder of claim 15 , wherein the instructions, when executed by the processor, further cause the processor to:
decode the chroma and luma motion information by the MV decoder so as to form a latent motion feature of the luma current picture and the chroma current picture, respectively,
wherein a first compression parameter used by the MV decoder for the luma current picture is different from a second compression parameter used by the MV decoder for the chroma current picture.
17. The decoder of claim 15 , wherein the instructions, when executed by the processor, further cause the processor to:
decode residual information of the chroma and luma current pictures by a residual decoder so as to form a latent residual feature of the luma current picture and the chroma current picture, respectively,
wherein a first compression parameter used by the residual decoder for the luma current picture is different from a second compression parameter used by the residual decoder for the chroma current picture.
18. The decoder of claim 14 , wherein the GOP includes a first key picture (x s I ) and a second key picture (x e I ), wherein the first key picture is at a first time prior to the chroma or luma current picture, and wherein the second key picture is at a second time later than the chroma or luma current picture.
19. The decoder of claim 18 , wherein the instructions, when executed by the processor, further cause the processor to:
generate a first reference picture based on the first key picture (x s I ); and
generate a second reference picture based on the second key picture (x e I ).
20. The decoder of claim 19 , wherein:
the first reference picture is a first reconstructed picture (x s C ) based on the first key picture (x s I ) processed by a better portable graphics (BPG) image compression tool; and
the second reference picture is a second reconstructed picture (x e C ) based on the second key picture (x e I ) processed by the BPG image compression tool.