Multimedia information generation method and multimedia information reproduction device

• US 20050248561A1
• Filed: 04/24/2003
• Published: 11/10/2005
• Est. Priority Date: 04/25/2002
• Status: Abandoned Application

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Inoue, Satoru, Ito, Norio, Aono, Tomoko, Katata, Hiroyuki, Yabe, Hiroaki, Uchiumi, Tadashi, Nomura, Toshio
• Application Number:
  US10/512,056
• Publication Number:
  US 20050248561A1
• Time in Patent Office: Days
• US Class Current: 345/419
• CPC Class Codes: G09G 5/28 for enhancement of character form, e.g. smoothing
• CPC Class Codes: H04N 13/156 Mixing image signals
• CPC Class Codes: H04N 13/178 Metadata, e.g. disparity information
• CPC Class Codes: H04N 13/183 On-screen display [OSD] information, e.g. subtitles or menus
• CPC Class Codes: H04N 13/189 Recording image signals; Reproducing recorded image signals
• CPC Class Codes: H04N 13/194 Transmission of image signals
• CPC Class Codes: H04N 13/243 using three or more 2D image sensors
• CPC Class Codes: H04N 13/261 with monoscopic-to-stereoscopic image conversion
• CPC Class Codes: H04N 13/31 using parallax barriers
• CPC Class Codes: H04N 13/359 Switching between monoscopic and stereoscopic modes
• CPC Class Codes: H04N 19/597 specially adapted for multi-view video sequence encoding

Abstract

To a multimedia information file including three-dimensional image data, three-dimensional display control information is added that indicates an intended three-dimensional display method for the three-dimensional image data or a data format in which the data is recorded. A three-dimensional image reproduction apparatus performs conversion appropriate for data characteristics derived from the three-dimensional display control information and then provides display. Recorded three-dimensional image data is thus given versatility so that the same three-dimensional image data can be used commonly to different three-dimensional display schemes.

Claims

1. A multimedia information generation apparatus for generating multimedia information including at least one two-dimensional image or character information and at least one three-dimensional image, comprising:

a control information generation unit generating control information for controlling display of said three-dimensional image; and

a multimedia information generation unit generating said multimedia information including said at least one two-dimensional image or character information and at least one three-dimensional image and said control information, wherein

said at least one two-dimensional image or character information and at least one three-dimensional image are data to be synthesized.

3. The multimedia information generation apparatus according to claim 1 or 2, wherein said control information is provided correspondingly to each three-dimensional image.

4. The multimedia information generation apparatus according to claim 1 or 2, wherein said control information is provided correspondingly to a plurality of three-dimensional images.

5. The multimedia information generation method according to claim 1, wherein an identifier for identifying each of at least said two dimensional image and said three-dimensional image is set in advance, and said control information includes said identifier of the three-dimensional image.

7. The multimedia information generation apparatus according to claim 5 or 6, wherein said control information includes a plurality of identifiers.

8. The multimedia information generation apparatus according to claim 5 or 6, wherein a predetermined value of said identifier indicates that all of images included in said multimedia information are three-dimensional images.

9. The multimedia information generation apparatus according to claim 5, wherein a predetermined value of said identifier indicates that all of images included in said modules are three-dimensional images.

2. A multimedia information generation apparatus for generating multimedia information comprised of a plurality of modules, comprising

a module generation unit generating said modules including at least one two-dimensional image or character information and at least one three-dimensional image, wherein

said modules include control information for controlling display of said three-dimensional image, and said at least one two-dimensional image or character information and at least one three-dimensional image are data to be synthesized.

6. The multimedia information generation apparatus according to claim 2, wherein an identifier for identifying each of at least said two-dimensional image and said three-dimensional image is set in advance, and said control information includes said identifier of the three-dimensional image.

10. A multimedia information reproduction apparatus reproducing multimedia information including at least one two-dimensional image or character information and at least one three-dimensional images, comprising:

a generation unit generating a three-dimensional image from said two-dimensional image or character information; and

a first synthesis unit synthesizing said three-dimensional image generated by said generation unit and the three-dimensional image included in said multimedia information.

11. The multimedia information reproduction apparatus according to claim 10, further comprising a second synthesis unit synthesizing a plurality of two-dimensional images or character information, and

said generation unit generates three-dimensional image data from two-dimensional image data obtained through synthesis by said second synthesis unit, instead of said two-dimensional images or character information.

12. A multimedia information reproduction apparatus reproducing multimedia information including a plurality of sets of at least one two-dimensional image or character information and at least one three-dimensional image, comprising:

a page data decoding unit decoding graphic and character information included in said multimedia information to obtain a page image;

a 2D/3D conversion unit converting said page image into a three-dimensional image; and

a first synthesis unit synthesizing the three-dimensional image generated by said 2D/3D conversion unit and the three-dimensional image included in said multimedia information.

13. The multimedia information reproduction apparatus according to claim 12, further comprising a second synthesis unit synthesizing a plurality of two-dimensional images, and

said 2D/3D conversion unit converts two-dimensional image data obtained through synthesis by said second synthesis unit into three-dimensional image data.

14. The multimedia information reproduction apparatus according to claim 12 or 13, wherein a first font image and a second font image corresponding to the character information are provided, said first font image is used when the character information is three-dimensionally displayed and said second font image is used when the character information is two-dimensionally displayed.

15. The multimedia information reproduction apparatus according to claim 14, wherein said page data decoding unit uses said first or second font image to obtain the page image.

16. The multimedia information reproduction apparatus according to claim 14, wherein said 2D/3D conversion unit uses said first or second font image to obtain the three-dimensional image.

17. The multimedia information reproduction apparatus according to claim 15 or 16, further comprising:

a font image storage unit storing said first font image and said second font image; and

a switch selecting said first font image or said second font image.

18. The multimedia information reproduction apparatus according to claim 15 or 16, further comprising a font conversion unit converting the second font image into the first font image.

19. The multimedia information reproduction apparatus according to claim 14, wherein said first font image is comprised of a plurality of pieces of light/dark information and arranged so that apparent character thickness is thin.