Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. WO2020113068 - FUSION D'IMAGE BASÉE SUR DES BLOCS POUR LA SEGMENTATION ET LE TRAITEMENT CONTEXTUEL

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

WHAT IS CLAIMED IS:

1. An encoder, the encoder comprising circuitry configured to:

receive a video frame;

partition the video frame into blocks;

determine a first area within the video frame including a first grouping of a first subset of the blocks;

determine a first average measure of information of the first area; and

encode the video frame, the encoding including controlling, using the first average

measure of information of the first area, a quantization parameter.

2. The encoder of claim 1, wherein a block size of the blocks is 4 x 4.

3. The encoder of claim 1 further configured to receive semantic information, wherein the first grouping is determined based on the received semantic information.

4. The encoder of claim 4, wherein the semantic information includes data characterizing a facial detection.

5. The encoder of claim 1, wherein the first average measure of information is determined by calculating a sum of a plurality of information measures of the plurality of blocks.

6. The encoder of claim 5, wherein the first average measure of information is further

determined by multiplying the sum by a significance coefficient.

7. The encoder of claim 6, wherein the significance coefficient is determined based on a characteristic of the first area.

8. The encoder of claim 1, wherein the controlling includes determining a first quantization size based on the first measure of information.

9. The encoder of claim 1 further comprising:

a transform and quantization processor;

an inverse quantization and inverse transformation processor;

an in loop filter;

a decoder picture buffer;

a motion estimation and compensation processor; and

an intra prediction processor.

10. The encoder of claim 1 further configured to:

determine a second area within the video frame including a second grouping of a second subset of the blocks; and

determine a second average measure of information of the second area, wherein the controlling is further based on the second average measure of information of the second area.

11. A method comprising:

receiving, by an encoder, a video frame;

partitioning the video frame into blocks;

determining a first area within the video frame including a first grouping of a first subset of the blocks;

determining a first average measure of information of the first area; and

encoding the video frame, the encoding including controlling, using the first average measure of information of the first area, a quantization parameter.

12. The method of claim 11, wherein a block size of the blocks is 4 x 4.

13. The method of claim 11, further comprising receiving semantic information, wherein the first grouping is determined based on the received semantic information.

14. The method of claim 13, wherein the semantic information includes data characterizing a facial detection.

15. The method of claim 11, wherein the first average measure of information is determined by calculating a sum a plurality of information measures of the plurality of blocks.

16. The method of claim 16, wherein the first average measure of information is further determined by multiplying the sum by a significance coefficient.

17. The method of claim 17, wherein the significance coefficient is determined based on a characteristic of the first area.

18. The method of claim 11, wherein the controlling includes determining a first quantization size based on the first measure of information.

19. The method of claim 11, the encoder comprising:

a transform and quantization processor;

an inverse quantization and inverse transformation processor;

an in loop filter;

a decoder picture buffer;

a motion estimation and compensation processor; and

an intra prediction processor.

20. The method of claim 11 further comprising:

determining a second area within the video frame including a second grouping of a second subset of the blocks; and

determining a second average measure of information of the second area, wherein the controlling is further based on the second average measure of information of the second area.