Patent ID: 7571382

Claim:
A method of compressing an image at a server, storing a compressed representation of the image at the server and transmitting at least part of the compressed representation of the image from the server to at least one client, the method comprising: transforming the image into a frequency domain to form frequency domain coefficients; after said transforming, subdividing the frequency domain coefficients corresponding to the image into at least one block, each block comprising at least one transformed coefficient; compressing, via entropy coding, at least a first block and at least a second block into different independently decodable coding units, respectively; after said compressing, storing at least one of the first and second coding units on the server; receiving a request at said server; and responsive to the request, transmitting from the server to at least one client the coding unit(s) corresponding to the request so that upon receiving the request the coding unit(s) corresponding to the request are transmitted to the at least one client without the server having to employ further entropy encoding with respect thereto.