A packetization method and packet structure improve the robustness of a bitstream
generated when a still image is decomposed with a wavelet transform. The wavelet …

Techniques are described for harmonizing coding techniques when residual differential
pulse code modulation (RDPCM) is applied to a residual block. In some examples, a scan …

A method and apparatus for performing compression and/or decompression is described. In
one embodiment, the present invention comprises a system having a buffer, a wavelet …

Division of application No. 09/435,313,? led on Nov. OTHER PUBLICATIONS 5, 1999, noW
Pat. No. 6,549,666, Which is a division of application No. 08/847,074,? led on May 1, 1997 …

(57) ABSTRACT A method and apparatus to receive an image and to create a Smaller
representation of the image from a wavelet repre sentation of the image is described. The …

Methods and apparatus, including computer program products, for compression include
decomposing an image into wavelet transform coefficients, applying a first quantizer to the …

A compression and decompression system in which a reversible wavelet filter are used to
generates coefficients from input data, such as image data. The reversible wavelet filter is an …

A method and apparatus for performing compression and/or decompression is described. In
one embodiment, the present invention comprises a system having a buffer, a wavelet …

Embodiments describe a method, apparatus and system for processing images using block
based compression. In one embodiment, a method comprises determining whether two …

In encoding an input picture signal, the input signal is split by subband splitting into plural
frequency bands for generating signals of plural frequency bands, and the signals of the …