Segmentation of point velocity vectors in image sequence - segmenting velocity data based on movement prediction to generate representative vector for processing

摘要

The segmentation of the velocity vector data into roughly homogeneous blocks which can be represented by a vector is performed in part at least during the prior process of estimation of movement (11). This permits minimisation of the number of components representing the image, as well as the flow of data to control and reconstruct of an image at the decoder. The segmentation uses selection of a limited number of candidate vectors from among the predicted velocity vectors, then subjecting them to a dispersion around their original value before reallocating them in an adaptive 'aggregation/division' process among the image blocks. USE/ADVANTAGE - Optimised compression and faster image generation in sequences of images used in high definition television, e.g. MAC system.