Spatial-temporal frequency interleaved processing of a television signal.

摘要

To enable the high spatial frequency content of a video signal to be transmitted and received by way of a bandwidth limited channel, the spatial frequency spectrum of the image contained in the video signal is reconfigured by interleaving. Spatial repeat spectra (1a'-4a' Fig. 4D) of at least portions (1a-4a) of the image spectrum are created at complementary interleaved positions adjacent the image spectrum (23), from which positions the original contents of the image spectrum have been removed. These portions of the image spectrum to which the repeat spectra correspond are also removed, so that the final signal includes only a selected reduced bandwidth, portion of the original image spectrum with the repeat spectra interleaved therewith.