Graphic image processing method and apparatus

• US 9,035,942 B2
• Filed: 06/27/2013
• Issued: 05/19/2015
• Est. Priority Date: 02/17/2009
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jung, Kil-Soo, Park, Sung-Wook, Lee, Dae-Jong, Jun, Hye-Young
• Primary Examiner(s): Nguyen, Kimbinh T
• Application Number:
  US13/928,861
• Publication Number:
  US 20130286008A1
• Time in Patent Office: 691 Days
• Field of Search: 345/419, 345/440, 345/420
• US Class Current: 345/419
• CPC Class Codes: G06T 15/00 3D [Three Dimensional] image rendering
• CPC Class Codes: H04N 13/156 Mixing image signals
• CPC Class Codes: H04N 13/183 On-screen display [OSD] information, e.g. subtitles or menus
• CPC Class Codes: H04N 13/261 with monoscopic-to-stereoscopic image conversion

Abstract

Provided are a method and apparatus for processing a graphic stream. The method may include determining whether a graphic picture is reproducible as a three-dimensional (3D) image by assigning different depth values according to graphic objects or by assigning the same depth value to the graphic picture, using 3D capability information.

Claims

1. A method of processing a graphic stream, the method comprising:

generating graphic objects by decoding the graphic stream;

generating composition information and color information by decoding the graphic stream;

generating a graphic picture in which the graphic objects are included using the composition information and the color information;

extracting three-dimensional (3D) capability information stored in a player setting register of a reproducing apparatus, the 3D capability information comprising a first flag representing a first capability value with respect to a presentation graphic stream and a second flag representing a second capability value with respect to an interactive graphic stream; and

generating a left eye graphic picture and a right eye graphic picture using the 3D capability information and the graphic picture,

wherein, in response to the first flag comprising a first value, graphic objects in the left eye graphic picture and the right eye graphic picture in the presentation graphic stream are assigned a same depth in 3D, and, in response to the first flag comprising a second value, the graphic objects in the left eye graphic picture and the right eye graphic picture in the presentation graphic stream are assigned different depths in 3D, respectively, and

in response to the second flag comprising the first value, graphic objects in the left eye graphic picture and the right eye graphic picture in the interactive graphic stream are assigned a same depth in 3D, and, in response to the second flag comprising the second value, the graphic objects in the left eye graphic picture and the right eye graphic picture in the interactive graphic stream are assigned different depths in 3D, respectively.

2. An apparatus for processing a graphic stream, the apparatus comprising:

a graphic processor configured to generate graphic objects, composition information, and color information by decoding a graphic stream, and to generate a graphic picture in which the graphic objects are included using the composition information and the color information;

a depth processor configured to extract three-dimensional (3D) capability information stored in a player setting register of a reproducing apparatus, the 3D capability information comprising a first flag representing a first capability value with respect to a presentation graphic stream and a second flag representing a second capability value with respect to an interactive graphic stream; and

a graphic picture output unit configured to generate a left eye graphic picture and a right eye graphic picture using the 3D capability information and the graphic picture,

wherein, in response to the first flag comprising a first value, graphic objects in the left eye graphic picture and the right eye graphic picture in the presentation graphic stream are assigned a same depth in 3D, and, in response to the first flag comprising a second value, the graphic objects in the left eye graphic picture and the right eye graphic picture in the presentation graphic stream are assigned different depths in 3D, respectively, and

in response to the second flag comprising the first value, graphic objects in the left eye graphic picture and the right eye graphic picture in the interactive graphic stream are assigned a same depth in 3D, and, in response to the second flag comprising the second value, the graphic objects in the left eye graphic picture and the right eye graphic picture in the interactive graphic stream are assigned different depths in 3D, respectively.

3. A non-transitory computer-readable storage medium having stored therein program instructions to cause a processor to implement a method of processing a graphic stream, the method comprising:

generating graphic objects by decoding a graphic stream;

generating composition information and color information by decoding the graphic stream;

generating a graphic picture in which the graphic objects are included using the composition information and the color information;

extracting three-dimensional (3D) capability information stored in a player setting register stored in a reproducing apparatus, the 3D capability information comprising a first flag representing a first capability value with respect to a presentation graphic stream and a second flag representing a second capability value with respect to an interactive graphic stream; and

generating a left eye graphic picture and a right eye graphic picture using the 3D capability information and the graphic picture,

wherein, in response to the first flag comprising a first value, graphic objects in the left eye graphic picture and the right eye graphic picture in the presentation graphic stream are assigned a same depth in 3D, and, in response to the first flag comprising a second value, the graphic objects in the left eye graphic picture and the right eye graphic picture in the presentation graphic stream are assigned different depths in 3D, respectively, and

in response to the second flag comprising the first value, graphic objects in the left eye graphic picture and the right eye graphic picture in the interactive graphic stream are assigned a same depth in 3D, and, in response to the second flag comprising the second value, the graphic objects in the left eye graphic picture and the right eye graphic picture in the interactive graphic stream are assigned different depths in 3D, respectively.

4. A non-transitory computer-readable storage medium comprising:

a graphic stream; and

metadata about the graphic stream for reproducing the graphic stream in a three-dimensional (3D) graphic picture based on 3D capability information stored in a player register of a reproducing apparatus, the 3D capability information comprising a first flag representing a first 3D capability value with respect to a presentation graphic stream and a second flag representing a second 3D capability value with respect to an interactive graphic stream,

wherein the metadata comprises depth information about a graphic object and depth information about a graphic picture, and

wherein, in response to the first flag comprising a first value, graphic objects in the left eye graphic picture and the right eye graphic picture in the presentation graphic stream are assigned a same depth in 3D, and, in response to the first flag comprising a second value, the graphic objects in the left eye graphic picture and the right eye graphic picture in the presentation graphic stream are each assigned different depths in 3D, respectively, and

in response to the second flag comprising the first value, graphic objects in the left eye graphic picture and the right eye graphic picture in the interactive graphic stream are assigned a same depth in 3D, and, in response to the second flag comprising the second value, the graphic objects in the left eye graphic picture and the right eye graphic picture in the interactive graphic stream are assigned different depths in 3D, respectively.