Object-oriented analysis-synthesis coding of moving images

Abstract An object-oriented analysis-synthesis coder is presented which encodes objects instead of blocks of N × N picture elements. The objects are described by three parameter sets defining the motion, shape and colour of an object. The parameter sets are obtained by image analysis based on source models of either moving 2D-objects or moving 3D-objects. Known coding techniques are used to encode the parameter sets. An object-depending parameter coding allows to introduce geometrical distortions instead of quantization errors. Using the transmitted parameter sets an image can be reconstructed by model-based image synthesis. Experimental results achieved with a first implementation of the coder are given and are discussed.