IP Library › Granted Patent US 9,900,607
Granted Patent B2
US 9,900,607 · App. 14/984,509 · Granted Feb 20, 2018

Decoding device and decoding method, encoding device, and encoding method

Inventors: Shinobu Hattori (Tokyo, JP); Hiroaki Eto (Kanagawa, JP); Takumi Tsuru (Chiba, JP); Kenichi Kanai (Tokyo, JP); Toshiya Hamada (Saitama, JP)
Assignee: SONY CORPORATION
H04N19/46G09G5/02H04N9/73H04N19/30H04N19/70H04N19/85G09G2340/02H04N1/648
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Quick Facts
Patent No.
US 9,900,607
App. No.
14/984,509
Granted
Feb 20, 2018
Kind
B2
Abstract

The present disclosure relates to a decoding device, a decoding method, an encoding device, and an encoding method, which are capable of enabling a decoding side to accurately recognize a color gamut of an encoding target image. The decoding device includes circuitry configured to receive an encoded stream including encoded data of an image and color primary information indicating a coordinate of at least one color primary of the image. The circuitry extracts the encoded data and the color primary information from the received encoded stream. The circuitry decodes the encoded data to generate the image. Further, the circuitry adjusts a color space of the generated image based on the extracted color primary information. The present disclosure can be applied to, for example, a decoding device of a high efficiency video coding (HEVC) scheme.

Claims (105)

1. A decoding device, comprising:

circuitry configured to

receive encoded data of an image, color primary information indicating a coordinate of at least one color primary, and luminance information indicating luminance of a certain color of a first display unit that displayed the image while the image was being authored;

decode the encoded data to generate the image; and

adjust a color space of the generated image based on the color primary information, wherein

the first display unit that displayed the image while the image was being authored is different from a second display unit that displays the image generated by the circuitry.

2. The decoding device according to claim 1 , wherein the circuitry is further configured to

adjust a dynamic range of the generated image based on the luminance information.

3. The decoding device according to claim 2 , wherein the luminance information indicates white luminance of the display unit.

4. A decoding method performed by a decoding device, comprising:

receiving encoded data of an image, color primary information indicating a coordinate of at least one color primary, and luminance information indicating luminance of a certain color of a first display unit, which displayed the image while the image was being authored;

decoding, by circuitry of the decoding device, the encoded data to generate the image; and

adjusting, by the circuitry, a color space of the generated image based on the color primary information, wherein

the first display unit that displayed the image while the image was being authored is different from a second display unit that displays the image generated by the circuitry.

5. The decoding method according to claim 4 , further comprising:

adjusting a dynamic range of the generated image based on the luminance information.

6. The decoding method according to claim 5 , wherein the luminance information indicates white luminance of the display unit.

7. A decoding device, comprising:

circuitry configured to

receive encoded data of an image, color primary information indicating coordinates of three color primaries, and luminance information indicating luminance of a master display unit;

decode the encoded data to generate the image; and

adjust luminance of the generated image based on the luminance information, wherein

the master display unit is different from a display unit that displays the image generated by the circuitry.

8. The decoding device according to claim 7 , wherein the circuitry is further configured to

adjust a dynamic range of the generated image based on the luminance information.

9. The decoding device according to claim 8 , wherein the luminance information indicates white luminance of the master display unit.

10. A decoding method performed by a decoding device, comprising:

receiving encoded data of an image, color primary information indicating coordinates of three color primaries, and luminance information indicating luminance of a master display unit;

decoding, by circuitry of the decoding device, the encoded data to generate the image; and

adjusting, by the circuitry, luminance of the generated image based on the luminance information, wherein

the master display unit is different from a display unit that displays the image generated by the circuitry.

11. The decoding method according to claim 10 , further comprising:

adjusting a dynamic range of the generated image based on the luminance information.

12. The decoding method according to claim 11 , wherein the luminance information indicates white luminance of the master display unit.

13. A display apparatus, comprising:

a display configured to display an image; and

circuitry configured to

receive encoded data of an image, color primary information indicating coordinates of three color primaries, and luminance information indicating luminance of another display apparatus;

decode the encoded data to generate the image;

adjust luminance of the generated image based on the received luminance information; and

output the adjusted image to the display.

14. The display apparatus according to claim 13 , wherein the other display apparatus is a reference display.

15. The display apparatus according to claim 13 , wherein the other display apparatus is a master display.

16. The display apparatus according to claim 13 , wherein the other display apparatus displayed the image while the image was being edited.

17. The display apparatus according to claim 13 , wherein the circuitry is further configured to adjust a dynamic range of the generated image based on the luminance information.

18. The display apparatus according to claim 13 , wherein the luminance information indicates white luminance of the other display apparatus.

19. The display apparatus according to claim 13 , wherein the luminance of the other display apparatus is represented in candelas per square meter.

20. The display apparatus according to claim 13 , wherein the circuitry is further configured to receive white point information indicating a coordinate of a white point.

21. A decoding method performed by a display apparatus, comprising:

receiving encoded data of an image, color primary information indicating coordinates of three color primaries, and luminance information indicating luminance of another display apparatus;

decoding, by circuitry of the display apparatus, the encoded data to generate the image;

adjusting, by the circuitry, luminance of the generated image based on the received luminance information; and

outputting the adjusted image to a display of the display apparatus for display.

22. The decoding method according to claim 21 , wherein the other display apparatus is a reference display.

23. The decoding method according to claim 21 , wherein the other display apparatus is a master display.

24. The decoding method according to claim 21 , wherein the other display apparatus displayed the image while the image was being edited.

25. The decoding method according to claim 21 , further comprising:

adjusting a dynamic range of the generated image based on the luminance information.

26. The decoding method according to claim 21 , wherein the luminance information indicates white luminance of the other display apparatus.

27. The decoding method according to claim 21 , wherein the luminance of the other display apparatus is represented in candelas per square meter.

28. The decoding method according to claim 21 , further comprising:

receiving white point information indicating a coordinate of a white point.

29. A display device, comprising:

circuitry configured to

receive data of an image, audio, and luminance information indicating luminance of another display device;

separate the received image and the received audio;

output the received audio;

adjust luminance of the image based on the received luminance information; and

display the image and a menu superimposed on the image.

30. The display device according to claim 29 , wherein the other display device is a master display.

31. The display device according to claim 29 , wherein the other display device displayed the image while the image was being edited.

32. The display device according to claim 29 , wherein the circuitry is further configured to adjust the luminance of the image based on a user setting.

33. The display device according to claim 29 , wherein the circuitry is further configured to adjust a dynamic range of the generated image based on the luminance information.

34. The display device according to claim 29 , wherein the luminance information indicates white luminance of the other display device.

35. The display device according to claim 29 , wherein the luminance of the other display device is represented in candelas per square meter.

36. The display device according to claim 29 , wherein the circuitry is further configured to receive white point information.

37. A method performed by a display device, comprising:

receiving, by circuitry of the display device, data of an image, audio, and luminance information indicating luminance of another display device;

separating the received image and the received audio;

outputting the received audio;

adjusting, by the circuitry, luminance of the image based on the received luminance information; and

displaying the image and a menu superimposed on the image.

38. The method according to claim 37 , wherein the other display device is a master display.

39. The method according to claim 37 , wherein the other display device displayed the image while the image was being edited.

40. The method according to claim 37 , further comprising:

adjusting the luminance of the image based on a user setting.

41. The method according to claim 37 , further comprising:

adjusting a dynamic range of the generated image based on the luminance information.

42. The method according to claim 37 , wherein the luminance information indicates white luminance of the other display device.

43. The method according to claim 37 , wherein the luminance of the other display device is represented in candelas per square meter.

44. The method according to claim 37 , further comprising:

receiving white point information.

45. A display device, comprising:

circuitry configured to

receive data of an image, audio, and luminance information indicating luminance of another display device;

separate the received image and the received audio;

output the received audio;

adjust luminance of the image based on a user setting; and

display the image and a menu superimposed on the image.

46. The display device according to claim 45 , wherein the other display device is a master display.

47. The display device according to claim 45 , wherein the other display device displayed the image while the image was being edited.

48. The display device according to claim 45 , wherein the circuitry is further configured to adjust a dynamic range of the generated image based on the luminance information.

49. The display device according to claim 45 , wherein the luminance information indicates white luminance of the other display device.

50. The display device according to claim 45 , wherein the luminance of the other display device is represented in candelas per square meter.

51. The display device according to claim 45 , wherein the circuitry is further configured to receive white point information.

Priority Claims (2)
JP 2013-182578 · Sep 3, 2013 · national
JP 2013-272944 · Dec 27, 2013 · national
Continuity (3)
Continuation 14490444 · Sep 18, 2014
Continuation PCTJP2014072104 · Aug 25, 2014
Related Publication 20160112714A1 · Apr 21, 2016