METHOD AND APPARATUS FOR PROCESSING SIGNAL FOR THREE-DIMENSIONAL REPRODUCTION OF ADDITIONAL DATA

• US 20110037833A1
• Filed: 08/17/2010
• Published: 02/17/2011
• Est. Priority Date: 08/17/2009
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: LEE, Dae-jong, BAK, Bong-gil
• Application Number:
  US12/857,724
• Publication Number:
  US 20110037833A1
• Time in Patent Office: Days
• US Class Current: 348/46
• CPC Class Codes: H04N 13/111 Transformation of image signals corresponding to virtual viewpoints, e.g. spatial image interpolation
• CPC Class Codes: H04N 13/183 On-screen display [OSD] information, e.g. subtitles or menus

Abstract

A method and apparatus for processing a signal, including: extracting three-dimensional (3D) reproduction information for reproducing a subtitle, which is reproduced with a video image, in 3D, from additional data for generating the subtitle; and reproducing the subtitle in 3D by using the additional data and the 3D reproduction information.

Claims

1. A method of processing a signal, the method comprising:

extracting three-dimensional (3D) reproduction information for reproducing a subtitle, the subtitle being reproduced with a video image, in 3D, from additional data for generating the subtitle; and

reproducing the subtitle in 3D by using the additional data and the 3D reproduction information.

2. The method of claim 1, wherein the 3D reproduction information comprises offset information comprising at least one of:

a movement value, a depth value, a disparity, and parallax of a region where the subtitle is displayed.

3. The method of claim 2, wherein the 3D reproduction information further comprises an offset direction indicating a direction in which the offset information is applied.

4. The method of claim 3, wherein the reproducing of the subtitle in 3D comprises adjusting a location of the region where the subtitle is displayed by using the offset information and the offset direction.

5. The method of claim 4, wherein:

the additional data comprises text subtitle data; and

the extracting of the 3D reproduction information comprises extracting the 3D reproduction information from a dialog presentation segment included in the text subtitle data.

6. The method of claim 5, wherein the dialog presentation segment comprises:

a number of the regions where the subtitle is displayed; and

a number of pieces of offset information equaling the number_of_regions where the subtitle is displayed.

7. The method of claim 5, wherein the adjusting of the location comprises:

extracting dialog region location information from a dialog style segment included in the text subtitle data; and

adjusting the location of the region where the subtitle is displayed by using the dialog region location information, the offset information, and the offset direction.

8. The method of claim 4, wherein:

the additional data comprises subtitle data;

the subtitle data comprises a composition page;

the composition page comprises a page composition segment; and

the extracting of the 3D reproduction information comprises extracting the 3D reproduction information from the page composition segment.

9. The method of claim 4, wherein:

the additional data comprises subtitle data;

the subtitle data comprises a composition page;

the composition page comprises a depth definition segment; and

the extracting of the 3D reproduction information comprises extracting the 3D reproduction information from the depth definition segment.

10. The method of claim 8, wherein the 3D reproduction information further comprises information about whether the 3D reproduction information is generated, based on offset information of the video image or based on a screen having zero (0) disparity.

11. The method of claim 8, wherein the extracting of the 3D reproduction information comprises extracting at least one of:

offset information according to pages and offset information according to regions in a page.

12. The method of claim 4, wherein:

the additional data comprises a subtitle message; and

the extracting of the 3D reproduction information comprises extracting the 3D reproduction information from the subtitle message.

13. The method of claim 12, wherein:

the subtitle message comprises simple bitmap information; and

the extracting of the 3D reproduction information comprises extracting the 3D reproduction information form the simple bitmap information.

14. The method of claim 13, wherein the extracting of the 3D reproduction information comprises:

extracting the offset information from the simple bitmap information; and

extracting the offset direction from the subtitle message.

15. The method of claim 12, wherein:

the subtitle message further comprises a descriptor defining the 3D reproduction information; and

the extracting of the 3D reproduction information comprises extracting the 3D reproduction information from the descriptor included in the subtitle message.

16. The method of claim 15, wherein the descriptor comprises:

offset information about at least one of;

a character and a frame; and

the offset direction.

17. The method of claim 12, wherein:

the subtitle message further comprises a subtitle type; and

in response to the subtitle type indicating another view subtitle, the subtitle message further comprises information about the other view subtitle.

18. The method of claim 17, wherein the information about the other view subtitle comprises frame coordinates of the other view subtitle.

19. The method of claim 17, wherein the information about the other view subtitle comprises disparity information of the other view subtitle with respect to a reference view subtitle.

20. The method of claim 17, wherein the information about the other view subtitle comprises information about a subtitle bitmap for generating the other view subtitle.

21. The method of claim 9, wherein the 3D reproduction information further comprises information about whether the 3D reproduction information is generated based on:

offset information of the video image;

or

a screen having zero (0) disparity.

22. The method of claim 9, wherein the extracting of the 3D reproduction information comprises extracting at least one of:

offset information according to pages; and

offset information according to regions in a page.

23. An apparatus for processing a signal, the apparatus comprising:

a subtitle decoder configured to extract three-dimensional (3D) reproduction information to;

reproduce a subtitle, the subtitle being reproduced with a video image, in 3D, from additional data for generating the subtitle; and

reproduce the subtitle in 3D by using the additional data and the 3D reproduction information.

24. The apparatus of claim 23, wherein the 3D reproduction information comprises offset information comprising at least one of:

a movement value, a depth value, a disparity, and parallax of a region where the subtitle is displayed.

25. The apparatus of claim 24, wherein the 3D reproduction information further comprises an offset direction indicating a direction in which the offset information is applied.

26. The apparatus of claim 25, wherein the subtitle decoder is further configured to adjust a location of the region where the subtitle is displayed by using the offset information and the offset direction.

27. The apparatus of claim 26, wherein:

the additional data comprises text subtitle data; and

the apparatus further comprises a dialog presentation controller configured to extract the 3D reproduction information from a dialog presentation segment included in the text subtitle data.

28. The apparatus of claim 27, wherein the dialog presentation segment comprises:

a number of the regions where the subtitle is displayed; and

a number of pieces of offset information equaling the number_of_regions where the subtitle is displayed.

29. The apparatus of claim 27, wherein the dialog presentation controller is further configured to:

extract dialog region location information from a dialog style segment included in the text subtitle data; and

adjust the location of the region where the subtitle is displayed by using the dialog region location information, the offset information, and the offset direction.

30. The apparatus of claim 26, wherein:

the additional data comprises subtitle data;

the subtitle data comprises a composition page;

the composition page comprises a page composition segment;

the apparatus further comprises a composition buffer; and

the subtitle decoder is further configured to store the 3D reproduction information extracted from the page composition segment in the composition buffer.

31. The apparatus of claim 26, wherein:

the additional data comprises subtitle data;

the subtitle data comprises a composition page;

the composition page comprises a depth definition segment;

the apparatus further comprises a composition buffer; and

the subtitle decoder is further configured to store the 3D reproduction information included in the depth definition segment, in the composition buffer.

32. The apparatus of claim 30, wherein the 3D reproduction information further comprises information about whether the 3D reproduction information is generated based on offset information of the video image or based on a screen having zero (0) disparity.

33. The apparatus of claim 30, wherein the extracting of the 3D reproduction information comprises extracting at least one of:

offset information according to pages and offset information according to regions in a page.

34. The apparatus of claim 26, wherein:

the additional data comprises a subtitle message; and

the subtitle decoder is further configured to extract the 3D reproduction information from the subtitle message.

35. The apparatus of claim 34, wherein:

the subtitle message comprises simple bitmap information; and

the subtitle decoder is further configured to extract the 3D reproduction information from the simple bitmap information.

36. The apparatus of claim 35, wherein the subtitle decoder is further configured to:

extract the offset information from the simple bitmap information; and

extract the offset direction from the subtitle message.

37. The apparatus of claim 34, wherein:

the subtitle message further comprises a descriptor defining the 3D reproduction information; and

the subtitle decoder is further configured to extract the 3D reproduction information from the descriptor included in the subtitle message.

38. The apparatus of claim 37, wherein the descriptor comprises offset information about:

at least one of;

a character and a frame; and

the offset direction.

39. The apparatus of claim 34, wherein:

the subtitle message further comprises a subtitle type; and

in response to the subtitle type indicating another view subtitle, the subtitle message further comprises information about the other view subtitle.

40. The apparatus of claim 39, wherein the information about the other view subtitle comprises frame coordinates of the other view subtitle.

41. The apparatus of claim 39, wherein the information about the other view subtitle comprises disparity information of the other view subtitle with respect to a reference view subtitle.

42. The apparatus of claim 39, wherein the information about the other view subtitle comprises information about a subtitle bitmap for generating the other view subtitle.

43. The apparatus of claim 31, wherein the 3D reproduction information further comprises information about whether the 3D reproduction information is generated based on offset information of the video image or based on a screen having zero (0) disparity.

44. The apparatus of claim 31, wherein the 3D reproduction information comprises at least one of:

offset information according to pages; and

offset information according to regions in a page.

45. A computer-readable recording medium having recorded thereon additional data for generating a subtitle that is reproduced with a video image, the additional data comprising text subtitle data, the text subtitle data comprising a dialog style segment and a dialog presentation segment, the dialog presentation segment comprising three-dimensional (3D) reproduction information for reproducing the subtitle in 3D.

46. A computer-readable recording medium having recorded thereon additional data for generating a subtitle that is reproduced with a video image, the additional data comprising subtitle data, the subtitle data comprising a composition page, the composition page comprising a page composition segment, the page composition segment comprising three-dimensional (3D) reproduction information for reproducing the subtitle in 3D.

47. A computer-readable recording medium having recorded thereon additional data for generating a subtitle that is reproduced with a video image, the additional data comprising subtitle data, the subtitle data comprising a subtitle message, and the subtitle message comprising three-dimensional (3D) reproduction information for reproducing the subtitle in 3D.