Patent ID: 6801574
Filing Date: 2004-10-05
Classification: H04N

Abstract:
An apparatus for layering and encoding a video signal on the basis of spatial resolution, comprising:first resolution transformation means to generate a second video signal with low resolution from a first video signal with high resolution which is an input video signal; first encoding means to encode said second video signal; decoding means to decode the encoded second video signal; second resolution transformation means to generate a third video signal with the same resolution as said first video signal from the decoded video signal of said second video signal; second encoding means to encode said first video signal, based on a time axis correlation of the first video signal and based on said third video signal as a predicted video signal; frequency distribution measuring means to measure a frequency distribution of said first video signal; and encoding quantity control means to control an encoding rate at which said second video signal is encoded by said first encoding means and an encoding rate at which said first video signal is encoded by said second encoding means, based on the measured frequency distribution.