Patent ID: 6539054
Filing Date: 2003-03-25
Classification: H04N

Abstract:
An image output apparatus which receives encoded video object data with display time set in each frame as a display process unit, which is obtained by encoding video object data respectively corresponding to individual objects composing a predetermined image, and decodes and composites the encoded video object data, to output reproduced data used for displaying the predetermined image, said apparatus comprising:decoders for decoding the encoded video object data corresponding to respective objects and outputting a plurality of decoded data; video data composition means for compositing the plurality of decoded data to generate composite data corresponding to a frame, frame by frame; a buffer for storing the composite data of a predetermined number of frames; image display means for selecting composite data corresponding to a specified frame according to a result of comparison between set display time of respective composite data stored in said buffer and scheduled display time determined by display process ability, and outputting the selected composite data as the reproduced data; and means for determining a video data composition period, which determines a composition period of a composition process according to the result of comparison between the set display time and the scheduled display time and outputs composition period information, wherein said video data composition means perform the composition process according to the composition period indicated by the composition period information.