METHOD AND SYSTEM OF VIDEO CODING WITH POST-PROCESSING INDICATION

• US 20170111661A1
• Filed: 04/14/2016
• Published: 04/20/2017
• Est. Priority Date: 10/20/2015
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: BOYCE, JILL
• Granted Patent: US 10,798,422 B2
• Time in Patent Office: Days
• CPC Class Codes: H04N 19/44 Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
• CPC Class Codes: H04N 19/70 characterised by syntax aspects related to video coding, e.g. related to compression standards
• CPC Class Codes: H04N 19/85 using pre-processing or post-processing specially adapted for video compression

Abstract

Methods, systems, and articles are described herein related to video coding with post-processing indication.

Claims

1. A computer-implemented method of video coding with post-processing indication comprising:

obtaining image data;

encoding the image data in conformance with a video coding profile having a profile_tier_level syntax comprising profile syntax elements indicating the conformance parameters of a video coding standard and for decoded video,

wherein one of the profile syntax elements of the profile_tier_level syntax is a general context interpretation code that indicates that the image data is to be post-processed after decoding, and wherein the general context interpretation code is an existing profile syntax element originally established for reasons other than post-processing; and

providing the image data and profile_tier_level syntax settings in a bitstream to be transmitted to a decoder to have the image data decoded, post-processed after the decoding depending on a setting of the general context interpretation code, and available to display images.

2. The method of claim 1 wherein the video coding profile is a high efficiency video coding (HEVC) profile and the general context interpretation code is the general_profile_space code.

3. The method of claim 1 wherein the setting of the general context interpretation code is alternatively a first value to indicate decoding without required post-processing, a second value to indicate post-processing is necessary after decoding, and any other value to indicate decoding may be skipped for the image data.

4. The method of claim 1 comprising setting the value of the general context interpretation code so that a decoder that does not have access to a type of post-processing expected by the use of the value of the profile code setting does not decode the image data, while a decoder that does have access to a type of post-processing expected by the use of the value does decode the image data.

5. The method of claim 1 wherein the general context interpretation code has a plurality of values that indicate post-processing, and wherein individual values indicate a different type of post-processing or a combination of post-processing types.

6. The method of claim 1 wherein the post-processing is related to at least one of:

converting image data from standard dynamic range (SDR) to high dynamic range (HDR),

converting YUV image data to RGB color space image data, and

modifying the color temperature of the image data.

7. The method of claim 1 wherein the video coding profile is a high efficiency video coding (HEVC) profile and the general context interpretation code is the general_profile_space code;

wherein the setting of the general context interpretation code is alternatively a first value to indicate decoding without required post-processing, a second value to indicate post-processing is necessary after decoding, and any other value to indicate decoding may be skipped for the image data;

the method comprising setting the value of the general context interpretation code so that a decoder that does not have access to a type of post-processing expected by the use of the value of the profile code setting does not decode the image data, while a decoder that does have access to a type of post-processing expected by the use of the value does decode the image data;

wherein the general context interpretation code has a plurality of values that indicate post-processing, and wherein individual values indicate a different type of post-processing or a combination of post-processing types;

wherein the post-processing is related to at least one of;

converting image data from standard dynamic range (SDR) to high dynamic range (HDR),

converting YUV image data to RGB color space image data, and

modifying the color temperature of the image data.

8. A computer-implemented method of video coding with post-processing indication comprising:

obtaining encoded image data and profile_tier_level syntax settings of a video coding profile and having profile syntax elements indicating the conformance parameters of a video coding standard and for decoded video,

wherein one profile syntax element of the profile_tier_level syntax indicates that the image data is to be post-processed after decoding, and wherein the one profile syntax element is an existing profile syntax element originally established for reasons other than post-processing;

decoding the encoded image data; and

depending on the setting of the one profile syntax element, providing the decoded image data to be post-processed to use the post-processed image data to display images.

9. The method of claim 8 wherein the one profile syntax element is a general context interpretation code.

10. The method of claim 8 wherein the video coding profile is a high efficiency video coding (HEVC) profile and the one profile syntax element is the general_profile_space code.

11. The method of claim 8 wherein the post-processing indicated by the one profile syntax element establishes normative post-processing to form a profile conformance point after the post-processing of image data.

12. The method of claim 8 comprising obtaining non-profile data that indicates at least one type of post-processing indicated by the profile code setting.

13. The method of claim 8 comprising skipping the decoding of a video sequence at a decoder when a setting of the one profile syntax element indicates that the image data is to be post-processed but the decoder does not have capability to perform the post-processing indicated by the profile code setting.

14. The method of claim 8 wherein the one profile syntax element is a general context interpretation code;

wherein the video coding profile is a high efficiency video coding (HEVC) profile and the one profile syntax element is the general_profile_space code;

wherein the post-processing indicated by the one profile syntax element establishes normative post-processing to form a profile conformance point after the post-processing of image data;

the method comprising;

obtaining non-profile data that indicates at least one type of post-processing indicated by the profile code setting; and

skipping the decoding of a video sequence at a decoder when a setting of the one profile syntax element indicates that the image data is to be post-processed but the decoder does not have capability to perform the post-processing indicated by the profile code setting.

15. A computer-implemented system of video coding with post-processing indication comprising:

at least one memory;

at least one display;

at least one processor communicatively connected to the at least one display and at least one memory; and

an encoder operated by the at least one processor and arranged to;

obtain image data;

encode the image data in conformance with a video coding profile having a profile_tier_level syntax comprising profile syntax elements indicating the conformance parameters of a video coding standard and for decoded video,

wherein one of the profile syntax elements of the profile_tier_level syntax is a general context interpretation code that indicates that the image data is to be post-processed after decoding, and wherein the general context interpretation code is an existing profile syntax element originally established for reasons other than post-processing; and

provide the image data and profile_tier_level syntax settings in a bitstream to be transmitted to a decoder to have the image data decoded, post-processed after the decoding depending on a setting of the general context interpretation code, and available to display images.

16. The system of claim 15 wherein the video coding profile is a high efficiency video coding (HEVC) profile and the general context interpretation code is the general_profile_space code.

17. The system of claim 15 wherein the general context interpretation code is alternatively a first value to indicate decoding without required post-processing, at least one second value to indicate post-processing is necessary after decoding, and any other value to indicate decoding may be skipped for corresponding image data.

18. The system of claim 15 wherein the general context interpretation code has a plurality of post-processing values wherein individual post-processing value indicate a different type of post-processing or a combination of post-processing types.

19. The system of claim 15 wherein the post-processing indicated by the one profile syntax element establishes normative post-processing to form a profile conformance point after the post-processing of image data.

20. The system of claim 15 wherein the video coding profile is a high efficiency video coding (HEVC) profile and the general context interpretation code is the general_profile_space code;

wherein the general context interpretation code is alternatively a first value to indicate decoding without required post-processing, at least one second value to indicate post-processing is necessary after decoding, and any other value to indicate decoding may be skipped for corresponding image data;

wherein the general context interpretation code has a plurality of post-processing values wherein individual post-processing value indicate a different type of post-processing or a combination of post-processing types;

wherein the post-processing indicated by the one profile syntax element establishes normative post-processing to form a profile conformance point after the post-processing of image data.

21. A computer-readable medium having instructions thereon that when executed by a computing device cause the computing device to:

obtain encoded image data and profile_tier_level syntax settings of a video coding profile and having profile syntax elements indicating the conformance parameters of a video coding standard and for decoded video,

wherein one profile syntax element of the profile_tier_level syntax indicates that the image data is to be post-processed after decoding, and wherein the one profile syntax element is an existing profile syntax element originally established for reasons other than post-processing;

decode the encoded image data; and

depending on the setting of the one profile syntax element, provide the decoded image data to be post-processed to use the post-processed image data to display images.

22. The medium of claim 21 wherein the one profile syntax element is a general context interpretation code.

23. The medium of claim 21 wherein the video coding profile is a high efficiency video coding (HEVC) profile and the one profile syntax element is the general_profile_space code.

24. The medium of claim 21 wherein the post-processing indicated by the profile syntax element establishes normative post-processing to form a profile conformance point after the post-processing of image data.

25. The medium of claim 21 wherein the video coding profile is a high efficiency video coding (HEVC) profile and the general context interpretation code is the general_profile_space code;

wherein the setting of the general context interpretation code is alternatively a first value to indicate decoding without required post-processing, a second value to indicate post-processing is necessary after decoding, and any other value to indicate decoding may be skipped for the image data;

the executed instructions cause the computing device to operate by setting the value of the general context interpretation code so that a decoder that does not have access to a type of post-processing expected by the use of the value of the profile code setting does not decode the image data, while a decoder that does have access to a type of post-processing expected by the use of the value does decode the image data;

wherein the general context interpretation code has a plurality of values that indicate post-processing, and wherein individual values indicate a different type of post-processing or a combination of post-processing types;

wherein the post-processing is related to at least one of;

converting image data from standard dynamic range (SDR) to high dynamic range (HDR),

converting YUV image data to RGB color space image data, and

modifying the color temperature of the image data.