Method & apparatus for generating digital video signals representing an image

摘要

The present invention relates to generating digital video signals which together represent an image for subsequent reproduction by a display device. The digital video signals are generated in the form of individual digital data streams representing respective sub-elements of a high definition television image. The sub-elements constitute an array of spatially adjoining segments which together constitute the complete image. Each of the data streams is compressed before the data streams are multiplexed into a transport stream of data. The compression is effected using a quantisation algorithm and by intra-frame and predictive coding algorithms. The compression is controlled so that the joins between different segments of the image are made less visible upon decoding and reproduction of the image. <IMAGE>