Некоторое содержание этого приложения в настоящий момент недоступно.
Если эта ситуация сохраняется, свяжитесь с нами по адресуОтзывы и контакты
1. (WO2019002171) METHOD AND APPARATUS FOR INTRA PREDICTION WITH MULTIPLE WEIGHTED REFERENCES
Примечание: Текст, основанный на автоматизированных процессах оптического распознавания знаков. Для юридических целей просьба использовать вариант в формате PDF

CLAIMS:

1 . A method, comprising:

forming a plurality of reference arrays from reconstructed samples of neighboring a block of video data, wherein said reconstructed samples are located at pixel positions equal to or greater than one position from said block of video data;

predicting a target pixel of the block of video data respectively from one or more of the plurality of reference arrays;

computing a final intra prediction for the target pixel of the block of video as a function of predictions respectively from one or more of the reference arrays; and,

encoding the block of video using the final prediction.

2. A method, comprising:

forming a plurality of reference arrays from decoded samples of a block of video data, wherein said reconstructed samples are located at pixel positions equal to or greater than one position from said block of video data;

predicting a target pixel of the block of video data respectively from one or more of the plurality of reference arrays;

computing a final intra prediction for the target pixel of the block of video as a function of predictions respectively from one or more of the reference arrays; and,

decoding the block of video using the final prediction.

3. An apparatus, comprising:

a memory, and

a processor, configured to perform:

forming a plurality of reference arrays from reconstructed samples of a block of video data, wherein said reconstructed samples are located at pixel positions equal to or greater than one position from said block of video data;

predicting a target pixel of the block of video data respectively from one or more of the plurality of reference arrays;

computing a final intra prediction for the target pixel of the block of video as a function of predictions respectively from one or more of the reference arrays; and,

encoding the block of video using the final prediction.

4. An apparatus, comprising:

a memory, and

a processor, configured to perform:

forming a plurality of reference arrays from decoded samples of a block of video data, wherein said reconstructed samples are located at pixel positions equal to or greater than one position from said block of video data;

predicting a target pixel of the block of video data respectively from one or more of the plurality of reference arrays;

computing a final intra prediction for the target pixel of the block of video as a function of predictions respectively from one or more of the reference arrays; and,

decoding the block of video using the final prediction.

5. The method of Claim 1 or 2, or the apparatus of Claim 3 or 4, wherein said function comprises a weighted combination.

6. The method of Claim 1 or 2, or the apparatus of Claim 3 or 4, wherein a reference array comprises a row of pixels above, and a column of pixels to the left of, said block of video data.

7. The method of Claim 1 or 2, or the apparatus of Claim 3 or 4, wherein said function is based on a number of rows of pixels above and a number of columns to the left of, said block of video data.

8. The method of Claim 1 or 2, or the apparatus of Claim 3 or 4, wherein said prediction from the reference array is made by interpolation of two adjacent samples of the reference array.

9. The method of Claim 1 or 2, or the apparatus of Claim 3 or 4, wherein said function comprises a normalized, weighted combination of N reference layers.

10. The method of Claim 1 or 2, or the apparatus of Claim 3 or 4, wherein said function comprises a weighted combination of reference layers, wherein weights are determined with offline training.

1 1. The method of Claim 1 or 2, or the apparatus of Claim 3 or 4, wherein said function comprises a weighted combination of reference layers, wherein weights vary with distance between a target pixel and said corresponding reference layer.

12. The method of Claim 1 or 2, or the apparatus of Claim 3 or 4, wherein said function comprises a weighted combination of reference layers, and a number of reference layers used is transmitted from an encoder to a decoder.

13. A non-transitory computer readable medium containing data content generated according to the method of any one of claims 1 and 5 to 12, or by the apparatus of any one of claims 3 and 5 to 12, for playback using a processor.

14. A signal comprising video data generated according to the method of any one of claims 1 and 5 to 12, or by the apparatus of any one of claims 3 and 5 to 12, for playback using a processor.

15. A computer program product comprising instructions which, when the program is executed by a computer, cause the computer to carry out the method of any one of claims 2 and 5 to 12