Patent ID: 6970507

Claim:
A process for motion-compensated prediction of moving images or pictures using an interpolation method considering past image points as well as neighboring image points, said process comprising the steps of: a) making a motion-compensated picture signal (Å tri (tâˆ’1)) using past image point information (s tri (tâˆ’2)), wherein said past image point information is displaced or shifted to obtain said motion-compensated picture signal (Å tri (tâˆ’1)) according to a product of a scanning rate increase factor (L) and a previously determined motion vector (d(tâˆ’1)); b) producing an intermediate picture (s e (tâˆ’1)) from a reference picture (sâ€²(tâˆ’1)) by increasing scanning rate by said scanning rate increase factor (L) and inserting marker values (m) at intervening points between image points of the reference picture (sâ€²(tâˆ’1)) to form an interpolation raster; and c) replacing said marker values (m) in said intermediate picture (s e (tâˆ’1)) at locations in said intermediate picture where image point information of said motion-compensated picture signal (Å tri (tâˆ’1)) is present with said image point information of said motion-compensated picture signal (Å tri (tâˆ’1)) and retaining values in said intermediate picture at other locations in said intermediate picture where image point information of said motion-compensated picture signal is not present.