Arrangement of encoding motion image signals using motion compensation and orthogonal transformation

Claim 1

An arrangement of encoding a plurality of image signals successively applied thereto, said arrangement comprising: first means for storing a first image signal; second means which is coupled to said first means and extracts a motion region included in a second image signal by comparing said first and second image signals, said second image signal having been applied to said arrangement immediately after said first image signal; third means which is coupled to said second means and approximates in shape said motion region to a first polygon and extracting vertices of said first polygon and calculating coordinate values of said vertices, said third means generator first information indicative of said coordinates values from said arrangement; fourth means which is arranged to receive said first and second image signals and a signal indicative of said first polygon, said fourth means generating motion parameters and a predicted image signal, said motion parameters being derived from said arrangement; fifth means which is arranged to compare said predicted image signal and said second image signal, said fifth means extracting, from said second signal, a first region which is required to be orthogonally transformed; sixth means which is arranged to receive said first region and said second image signal, said sixth means dividing said first region into a plurality of second regions; seventh means, coupled to said sixth means, for approximating in shape each of said second regions to second polygons and extracting vertices of each of said second polygons and calculating coordinate values of said vertices of each of said second polygons, said seventh means generating second information indicating said coordinate values of said vertices of each of said second polygons, said second information being derived from said arrangement.