Method and apparatus for processing 3d video image

Abstract

A 3D video image processing method including: acquiring three-dimensional (3D) format information of a video image generated from video data to determine a 3D format of the video image; generating, from a first graphic image, a second graphic image corresponding to the determined 3D format of the video image using the 3D format information, the first graphic image being generated from graphic data; and overlaying the video image with the second graphic image.

1 . A video image processing method of a video image processing apparatus, the video image processing method comprising:
 acquiring, by the video image processing apparatus, three-dimensional (3D ) format information of a video image generated from video data to determine a 3D format of the video image;   generating, by the video image processing apparatus, from a first graphic image, a second graphic image corresponding to the determined 3D format of the video image using the 3D format information, the first graphic image being generated from graphic data that is distinct from the video image; and   overlaying, by the video image processing apparatus, the video image with the second graphic image.   
     
     
         2 . The video image processing method as claimed in  claim 1 , wherein the generating of the second graphic image comprises:
 when the determined 3D format is a side-by-side format, horizontally scaling down a frame of the first graphic image to generate two sub frames; and   generating the second graphic image having a frame including the generated two sub frames arranged in a horizontal direction.   
     
     
         3 . The video image processing method as claimed in  claim 1 , wherein the generating of the second graphic image comprises;
 when the determined 3D format is a top-and-down format, vertically scaling down a frame of the first graphic image to generate two sub frames; and   generating the second graphic image having a frame including the generated two sub frames arranged in a vertical direction   
     
     
         4 . The video image processing method as claimed in  claim 1 , wherein the acquiring of the 3D format information comprises:
 extracting an identifier representing whether the video image is a 3D format image from the video data; and   acquiring the 3D format information from the video data when the video image is the 3D format image using the identifier.   
     
     
         5 . The video image processing method as claimed in  claim 1 , further comprising:
 splitting the video image overlaid with the second graphic image into a left-eye image and a right-eye image; and   outputting the left-eye image and the right-eye image.   
     
     
         6 . The video image processing method as claimed in  claim 1 , further comprising:
 transmitting the video image overlaid with the second graphic image to an external device to be output as a left-eye image and a right-eye image.   
     
     
         7 . The video image processing method as claimed in  claim 1 , wherein:
 the graphic data includes presentation graphic data to provide subtitles and/or interactive graphic data to provide a menu;   when the graphic data includes the presentation graphic data and the interactive graphic data, the generating of the second graphic image comprises:
 generating a second interactive graphic image using a first interactive graphic image generated from the interactive graphic data and the 3D format information, and 
 generating a second presentation graphic image using a first presentation graphic image generated from the presentation graphic data and the 3D format information; and 
   the overlaying of the video image with the second graphic image comprises:
 overlaying the video image with the second presentation graphic image, and 
 overlaying the video image overlaid with the second presentation graphic image with the second interactive graphic image. 
   
     
     
         8 . The video image processing method as claimed in  claim 1 , wherein:
 the graphic data includes presentation graphic data to provide subtitles and/or interactive graphic data to provide a menu; and   when the graphic data includes the presentation graphic data and the interactive graphic data, the generating of the second graphic image comprises:
 generating a second interactive graphic image using a first interactive graphic image generated from the interactive graphic data and the 3D format information, and 
 generating a second presentation graphic image using a first presentation graphic image generated from the presentation graphic data and the 3D format information; and 
   the overlaying of the video image with the second graphic image comprises:
 overlaying the video image with the second interactive graphic image, and 
 overlaying the video image overlaid with the second interactive graphic image with the second presentation graphic image. 
   
     
     
         9 . The video image processing method as claimed in  claim 1 , wherein the generating of the second graphic image comprises:
 scaling down a frame of the first graphic image to generate two sub frames; and   generating the second graphic image having a frame including the generated two sub frames,   wherein the two sub frames comprise a first sub frame corresponding to a left-eye image and a second sub frame corresponding to a right-eye image.   
     
     
         10 . A video image processing method of a video image processing apparatus, the video image processing method comprising:
 acquiring, by the video image processing apparatus, three-dimensional (3D ) format information of a video image generated from video data;   converting, by the video image processing apparatus, the video image to a 3D interlaced format video image using the acquired 3D format information; and   overlaying, by the video image processing apparatus, the 3D interlaced format video image with a graphic image generated from graphic data that is distinct from the video image.   
     
     
         11 . The video image processing method as claimed in  claim 10 , wherein the converting of the video image to the 3D interlaced format video image comprises:
 when the video image is a top-and-down format including an upper image and a lower image, alternately arranging odd-numbered horizontal lines of the upper image and even-numbered horizontal lines of the lower image or alternately arranging even-numbered horizontal lines of the upper image and odd-numbered horizontal lines of the lower image to convert the video image to the 3D interlaced format video image.   
     
     
         12 . The video image processing method as claimed in  claim 10 , wherein the converting of the video image to the 3D interlaced format video image comprises:
 when the video image is a side-by-side format including a left image and a right image, alternately arranging odd-numbered vertical lines of the left image and even-numbered vertical lines of the right image or alternately arranging even-numbered vertical lines of the left image and odd-numbered vertical lines of the right image to convert the video image to the 3D interlaced format video image.   
     
     
         13 . The video image processing method as claimed in  claim 10 , further comprising:
 splitting the video image overlaid with the graphic image into a left-eye image and a right-eye image; and   outputting the left-eye image and the right-eye image.   
     
     
         14 . The video image processing method as claimed in  claim 10 , further comprising:
 transmitting the video image overlaid with the graphic image to an external device to be output as a left-eye image and a right-eye image.   
     
     
         15 . A video image processing apparatus comprising:
 a video data decoder to decode video data to generate a video image;   a graphic data decoder to decode graphic data to generate a first graphic image;   a second graphic image generator to extract three-dimensional (3D ) format information of the video image from the video data to determine a 3D format of the video image, and to generate, from the first graphic image, a second graphic image corresponding to the determined 3D format of the video image using the 3D format information; and   a blender overlay the video image with the second graphic image.   
     
     
         16 . The video image processing apparatus as claimed in  claim 15 , wherein when the determined 3D format is a side-by-side format, the second graphic image generator horizontally scales down a frame of the first graphic image to generate two sub frames, and generates the second graphic image including the generated two sub frames arranged in a horizontal direction. 
     
     
         17 . The video image processing apparatus as claimed in  claim 15 , wherein when the determined 3D format is a top-and-down format, the second graphic image generator vertically scales down a frame of the first graphic image to generate two sub frames, and generates the second graphic image including the generated two sub frames arranged in a vertical direction. 
     
     
         18 . The video image processing apparatus as claimed in  claim 15 , wherein the second graphic image generator extracts an identifier representing whether the video image is a 3D format image from the video data and acquires the 3D format information from the video data when the video image is the 3D format image using the identifier. 
     
     
         19 . The video image processing apparatus as claimed in  claim 15 , further comprising an output unit to split the video image overlaid with the second graphic image into a left-eye image and a right-eye image and to output the left-eye image and the right-eye image. 
     
     
         20 . The video image processing apparatus as claimed in  claim 15 , further comprising an output unit to transmit the video image overlaid with the second graphic image to an external device to be output as a left-eye image and a right-eye image. 
     
     
         21 . The video image processing apparatus as claimed in  claim 15 , wherein:
 the graphic data includes presentation graphic data to provide subtitles and/or interactive graphic data to provide a menu;   when the graphic data includes the presentation graphic data and the interactive graphic data, the second graphic image generator generates a second interactive graphic image using a first interactive graphic image generated from the interactive graphic data and the 3D format information, and generates a second presentation graphic image using a first presentation graphic image generated from the presentation graphic data and the 3D format information; and   the blender overlays the video image with the second presentation graphic image, and overlays the video image overlaid with the second presentation graphic image with the second interactive graphic image.   
     
     
         22 . The video image processing apparatus as claimed in  claim 15 , wherein:
 the graphic data includes presentation graphic data to provide subtitles and/or interactive graphic data to provide a menu;   when the graphic data includes the presentation graphic data and the interactive graphic data, the second graphic image generator generates a second interactive graphic image using a first interactive graphic image generated from the interactive graphic data and the 3D format information, and generates a second presentation graphic image using a first presentation graphic image generated from the presentation graphic data and the 3D format information; and   the blender overlays the video image with the second interactive graphic image, and overlays the video image overlaid with the second interactive graphic image with the second presentation graphic image.   
     
     
         23 . The video image processing apparatus as claimed in  claim 15 , wherein:
 the second graphic image generator scales down a frame of the first graphic image to generate two sub frames, and generates the second graphic image having a frame including the generated two sub frames; and   the two sub frames comprise a first sub frame corresponding to a left-eye image and a second sub frame corresponding to a right-eye image.   
     
     
         24 . A video image processing apparatus comprising:
 a video data decoder to decode video data to generate a video image;   a graphic data decoder to decode graphic data to generate a graphic image;   a format converter to extract three-dimensional (3D ) format information of the video image from the video data and to convert the video image to a 3D interlaced format video image using the extracted 3D format information; and   a blender to overlay the 3D interlaced format video image with the graphic image.   
     
     
         25 . The video image processing apparatus as claimed in  claim 24 , wherein when the video image is a top-and-down format including an upper image and a lower image, the format converter alternately arranges odd-numbered horizontal lines of the upper image and even-numbered horizontal lines of the lower image or alternately arranges even-numbered horizontal lines of the upper image and odd-numbered horizontal lines of the lower image to convert the video image to the 3D interlaced format video image. 
     
     
         26 . The video image processing apparatus as claimed in  claim 24 , wherein when the video image is a side-by-side format including a left image and a right image, the format converter alternately arranges odd-numbered vertical lines of the left image and even-numbered vertical lines of the right image or alternately arranges even-numbered vertical lines of the left image and odd-numbered vertical lines of the right image to convert the video image to the 3D interlaced format video image. 
     
     
         27 . The video image processing apparatus as claimed in  claim 24 , further comprising an output unit to split the video image overlaid with the graphic image into a left-eye image and a right-eye image and to output the left-eye image and the right-eye image. 
     
     
         28 . The video image processing apparatus as claimed in  claim 24 , further comprising an output unit to transmit the video image overlaid with the graphic image to an external device to be output as a left-eye image and a right-eye image. 
     
     
         29 . A computer readable recording medium storing a program to execute the method of  claim 1  and implemented by the video image processing apparatus. 
     
     
         30 . A computer readable recording medium storing a program to execute the method of  claim 10  and implemented by the video image processing apparatus. 
     
     
         31 . A computer-readable recording medium implemented by a video image processing apparatus, the computer-readable recording medium comprising:
 video data comprising a video image and three-dimensional (3D ) format information used by the video image processing apparatus to overlay the video image with a graphic image in a 3D format,   wherein the graphic image is generated from graphic data that is distinct from the video image.