Method and apparatus for processing three dimensional video data

Abstract

A video processing method and apparatus, the video processing method including: decoding two-dimensional video data; adjusting a brightness of the decoded two-dimensional video data; converting the brightness-adjusted two-dimensional video data into three-dimensional video data; and displaying the three-dimensional video data.

1 . A video processing method of a video processing apparatus, the video processing method comprising:
 decoding, by the video processing apparatus, a current frame of two-dimensional video data;   adjusting, by the video processing apparatus, a brightness of the decoded current frame;   converting the brightness-adjusted current frame into three-dimensional video data; and   displaying the converted three-dimensional video data.   
     
     
         2 . The video processing method as claimed in  claim 1 , wherein the adjusting of the brightness comprises:
 adjusting a brightness distribution in a frequency distribution table of the current frame, in which the brightness is divided into 256 grades, from 0 to 255, and a number of pixels of the current frame for each of the grades constitutes a frequency.   
     
     
         3 . The video processing method as claimed in  claim 2 , wherein, when a brightness level of a pixel of the current frame having a highest brightness from among pixels of the current frame is lower than 255, the adjusting of the brightness distribution comprises adjusting the brightness distribution by increasing brightness levels of all of the pixels of the current frame by as much as, or less than, a difference between the brightness level of the pixel having the highest brightness from among the pixels of the current frame and 255 so as to change the brightness of the current frame. 
     
     
         4 . The video processing method as claimed in  claim 2 , wherein, when a brightness level of a pixel having a lowest brightness from among pixels of the current frame is N, a brightness level of a pixel having a highest brightness from among the pixels of the current frame is M, and M is less than 255, the adjusting of the brightness distribution comprises adjusting the brightness distribution so that the brightness level of the pixel having the lowest brightness is N and the brightness level of the pixel having the highest brightness is 255. 
     
     
         5 . The video processing method as claimed in  claim 4 , wherein the adjusting of the brightness distribution so that the brightness level of the pixel having the lower brightness is N and the brightness level of the pixel having the highest brightness is 255 comprises:
 adjusting the brightness distribution so that distances between grades between N and 255 are equal.   
     
     
         6 . The video processing method as claimed in  claim 2 , wherein, when a brightness level of a pixel having a lowest brightness from among pixels of the current frame is N, a brightness level of a pixel having a highest brightness from among the pixels of the current frame is M, and K is greater than N and less than M, the adjusting of the brightness distribution comprises adjusting the brightness distribution so that a distance between grades between N and K is less than a distance between grades between K and M. 
     
     
         7 . A computer-readable recording medium encoded with the method of  claim 1  and implemented by the image processing apparatus. 
     
     
         8 . A video processing method of a video processing apparatus, the video processing method comprising:
 decoding, by the video processing apparatus, a current frame of two-dimensional video data;   converting, by the video processing apparatus, the current frame of the two-dimensional video data into three-dimensional video data; and   adjusting a brightness of the converted three-dimensional video data; and   displaying the brightness-adjusted three-dimensional video data.   
     
     
         9 . The video processing method as claimed in  claim 8 , wherein the adjusting of the brightness comprises:
 adjusting a brightness distribution in a frequency distribution table of the current frame, in which the brightness is divided into 256 grades, from 0 to 255, and a number of pixels of the current frame for each of the grades constitutes a frequency.   
     
     
         10 . The video processing method as claimed in  claim 9 , wherein, when a brightness level of a pixel of the current frame having a highest brightness from among pixels of the current frame is lower than 255, the adjusting of the brightness distribution comprises adjusting the brightness distribution by increasing brightness levels of all of the pixels of the current frame by as much as, or less than, a difference between the brightness level of the pixel having the highest brightness from among the pixels of the current frame and 255 so as to change the brightness of the current frame. 
     
     
         11 . The video processing method as claimed in  claim 9 , wherein, when a brightness level of a pixel having a lowest brightness from among pixels of the current frame is N, a brightness level of a pixel having a highest brightness from among the pixels of the current frame is M, and M is less than 255, the adjusting of the brightness distribution comprises adjusting the brightness distribution so that the brightness level of the pixel having the lowest brightness is N and the brightness level of the pixel having the highest brightness is 255. 
     
     
         12 . The video processing method as claimed in  claim 11 , wherein the adjusting of the brightness distribution so that the brightness level of the pixel having the lowest brightness is N and the brightness level of the pixel having the highest brightness is 255 comprises:
 adjusting the brightness distribution so that distances between grades between N and 255 are equal.   
     
     
         13 . The video processing method as claimed in  claim 9 , wherein, when a brightness level of a pixel having a lowest brightness from among pixels of the current frame is N, a brightness level of a pixel having a highest brightness from among the pixels of the current frame is M, and K is greater than N and less than M, the adjusting of the brightness distribution comprises adjusting the brightness distribution so that a distance between grades between N and K is less than a distance between grades between K and M. 
     
     
         14 . A computer-readable recording medium encoded with the method of  claim 8  and implemented by the image processing apparatus. 
     
     
         15 . A video processing method of a video processing apparatus, the video processing method comprising:
 receiving, by the video processing apparatus, video data;   recognizing that a current frame of the received video data is converted from two-dimensional video data to three-dimensional video data;   adjusting, by the video processing apparatus, a brightness of the current frame of the received video data; and   outputting the brightness-adjusted current frame.   
     
     
         16 . The video processing method as claimed in  claim 15 , wherein the adjusting of the brightness comprises:
 adjusting a brightness distribution in a frequency distribution table of the current frame, in which the brightness is divided into 256 grades, from 0 to 255, and a number of pixels of the current frame for each of the grades constitutes a frequency.   
     
     
         17 . The video processing method as claimed in  claim 16 , wherein, when a brightness level of a pixel of the current frame having a highest brightness from among pixels of the current frame is lower than 255, the adjusting of the brightness distribution comprises adjusting the brightness distribution by increasing brightness levels of all of the pixels of the current frame by as much as, or less than, a difference between the brightness level of the pixel having the highest brightness from among the pixels of the current frame and 255 so as to change the brightness of the current frame. 
     
     
         18 . The video processing method as claimed in  claim 16 , wherein, when a brightness level of a pixel having a lowest brightness from among pixels of the current frame is N, a brightness level of a pixel having a highest brightness from among the pixels of the current frame is M, and M is less than 255, the adjusting of the brightness distribution comprises adjusting the brightness distribution so that the brightness level of the pixel having the lowest brightness is N and the brightness level of the pixel having the highest brightness is 255. 
     
     
         19 . The video processing method as claimed in  claim 18 , wherein the adjusting of the brightness distribution so that the brightness level of the pixel having the lowest brightness is N and the brightness level of the pixel having the highest brightness is 255 comprises:
 adjusting the brightness distribution so that distances between grades between N and 255 are equal.   
     
     
         20 . The video processing method as claimed in  claim 16 , wherein, when a brightness level of a pixel having a lowest brightness from among pixels of the current frame is N, a brightness level of a pixel having a highest brightness from among the pixels of the current frame is M, and K is greater than N and less than M, the adjusting of the brightness distribution comprises adjusting the brightness distribution so that a distance between grades between N and K is less than a distance between grades between K and M. 
     
     
         21 . A computer-readable recording medium encoded with the method of  claim 15  and implemented by the image processing apparatus. 
     
     
         22 . A video processing apparatus comprising:
 a video data decoder to decode a current frame of two-dimensional video data;   a brightness adjuster to adjust a brightness of the decoded current frame;   a three-dimensional video converter to convert the decoded current frame to three-dimensional video data; and   an output unit to output the converted three-dimensional video data having the brightness adjusted current frame to a display.   
     
     
         23 . The video processing apparatus as claimed in  claim 22 , wherein the brightness adjuster adjusts a brightness distribution in a frequency distribution table of the current frame, in which the brightness is divided into 256 grades, from 0 to 255, and a number of pixels of the current frame for each of the grades constitutes a frequency. 
     
     
         24 . The video processing apparatus as claimed in  claim 23 , wherein, when a brightness level of a pixel of the current frame having a highest brightness from among pixels of the current frame is lower than 255, the brightness adjuster adjusts the brightness distribution by increasing brightness levels of all of the pixels of the current frame by as much as, or less than, a difference between the brightness level of the pixel having the highest brightness from among the pixels of the current frame and 255 so as to change the brightness of the current frame. 
     
     
         25 . The video processing apparatus as claimed in  claim 23 , wherein, when a brightness level of a pixel having a lowest brightness from among pixels of the current frame is N, a brightness level of a pixel having a highest brightness from among the pixels of the current frame is M, and M is less than 255, the brightness adjuster adjusts the brightness distribution so that the brightness level of the pixel having the lowest brightness is N and the brightness level of the pixel having the highest brightness is 255. 
     
     
         26 . The video processing apparatus as claimed in  claim 25 , wherein the brightness adjuster adjusts the brightness distribution so that distances between grades between N and 255 are equal. 
     
     
         27 . The video processing apparatus as claimed in  claim 23 , wherein, when a brightness level of a pixel having a lowest brightness from among pixels of the current frame is N, a brightness level of a pixel having a highest brightness from among pixels of the current frame is M, and K is greater than N and less than M, the brightness adjuster adjusts the brightness distribution so that a distance between grades between N and K is less than a distance between grades between K and M. 
     
     
         28 . A video processing method of a video processing apparatus, the video processing method comprising:
 decoding, by the video processing apparatus, a current frame of video data;   adjusting, by the video processing apparatus, a brightness of the decoded current frame; and   displaying the brightness-adjusted current frame as three-dimensional video data.   
     
     
         29 . The video processing method as claimed in  claim 28 , wherein the decoded current frame is two-dimensional video data. 
     
     
         30 . The video processing method as claimed in  claim 28 , wherein the adjusting of the brightness comprises:
 adjusting a brightness distribution in a frequency distribution table of the current frame, in which the brightness is divided into 256 grades, from 0 to 255, and a number of pixels of the current frame for each of the grades constitutes a frequency.   
     
     
         31 . A computer-readable recording medium encoded with the method of  claim 28  and implemented by the image processing apparatus.