Adaptive Selection Of Block Aperture In Transform Coding Of Images
Matthias F. Carlsohn · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1987
Transform coding suffers from a necessary block segmentation of the entire image. The block size defines the image resolution by the low-pass characteristic of the bit assignment. Detail-dependent variations of the block aperture achieve adaptive modification of the resolution parameters.