Patent ID: 6084914
Filing Date: 2000-07-04
Classification: H04N

Abstract:
A video coding device comprising:lower-layer coding means for coding a video sequence at a lower frame rate;upper-layer coding means for coding one or more specified part-areas of the video sequence at a higher frame rate;synthesizing means for synthesizing a video sequence of the upper-layer with a video sequence of the lower-layer by using part-area-information representing the specified part-areas;wherein the synthesizing means generates a lower-layer frame for synthesizable frame in case of the absence of the lower-layer frame corresponding to the temporal position of the synthesizable frame in order to fill the absence,by using a first part-area-information of a lower-layer existing temporally before the synthesizable frame and a second part-area-information of a lower-layer frame existing temporally after the synthesizable frame, andby using the lower-layer frame existing temporally after the synthesizable frame for a portion of only the first part-area, and by using the lower-layer frame existing temporally before the synthesizable frame for a portion of only the second part-area.