According to the present invention, not only still images but also moving images can be compressed with high quality. In an image coding apparatus, a wavelet transform unit low-pass filters and high-pass filters an input image signal in the vertical and horizontal directions to hierarchically transform...http://www.google.fr/patents/US7127111?utm_source=gb-gplus-shareBrevet US7127111 - Image coding apparatus and method, image decoding apparatus and method, and recording medium
Image coding apparatus and method, image decoding apparatus and method, and ...
