Information playback apparatus and information playback method

Abstract

There are provided a first image information output unit which overlaps first sub-picture information having high resolution HD onto main image information having high resolution HD to be outputted in accordance with a required image output format, and a second image information output unit which overlaps second sub-picture information having low resolution SD onto information into which the main image information having high resolution HD has been converted to have the low resolution SD to be outputted in accordance with a required image output format.

1 . An information playback apparatus comprising:
 a first image information output unit configured to overlap first sub-picture information onto main image information, the first sub-picture information having the same resolution as the main image information, and   a second image information output unit configured to overlap second sub-picture information onto information into which the main image information has been converted to have lower resolution than the resolution of the main image information, the second sub-picture information having the same resolution as the converted main image information.   
   
   
       2 . An information playback method comprising:
 overlapping first sub-picture information onto main image information, the first sub-picture information having the same resolution as the main image information, and   overlapping second sub-picture information onto information into which the main image information has been converted to have lower resolution than the resolution of the main image information, the second sub-picture information having the same resolution as the converted main image information.