Patent ID: 6097842
Filing Date: 2000-08-01
Classification: H04N

Abstract:
A picture encoding device for encoding a first picture using a second picture different in resolution from the first picture, said picture encoding device comprises:enlarging/contracting means for enlarging or contracting said second picture based on the difference in resolution between the first and second pictures;first picture encoding means for predictive coding said first picture using an output of said enlarging/contracting means as a reference picture;second picture encoding means for encoding said second picture;position setting means for setting positions of said first picture and said second picture in a pre-set absolute coordinate system and for outputting the first position information or the second position information of the position of said first or second picture, respectively; andmultiplexing means for multiplexing outputs of said first picture encoding means, said second picture encoding means, and said position setting means;in which said first picture encoding means recognizes the position of said first picture based on said first position information and converts said second position information in response to an enlarging ratio or a contracting ratio by which said enlarging/contracting means has enlarged or contracted said second picture to obtain a position of said reference picture so as to perform predictive coding.