Patent ID: 6128345
Filing Date: 2000-10-03
Classification: H04N

Abstract:
A video signal conversion system for converting between a first motion video signal representative of sequential video images including first and second video images and a second motion video signal comprising:a decoder detecting the scanning sequence of transform coefficients used in transform coding, and decoding the transform coefficients to produce information representative of the first and second video images;a field memory for storing information representative of the first video image as plural image fields;a predictive signal generator, operatively connected to said field memory, and supplying a predictive signal from the plural fields stored in said field memory;wherein a signal representative of the second video image is assembled from a predictive error signal output from said decoder and developed from a difference between the first video image and the second video image and is composed into blocks;a block deformer, operatively connected to said decoder and decomposing a blocked predictive error signal representative of the second video image into the predictive error signal to remove the blocking therefrom; anda combiner, operatively connected to said block deformer and combining the predictive error signal from said block deformer with the predictive signal obtained from said predictive signal generator.