Digital intermediate (DI) processing and distributing with scalable compression in the post-production of motion pictures

摘要

A method of digital intermediate (DI) processing is disclosed. The method comprises: a) providing a scalable compressed codestream for a sequence of digital images, the codestream providing random access to packets of compressed data to extract spatial regions of the images at a number of resolutions and/or a number of quality levels; b) in response to a client request for certain images in the sequence in a spatial region at a reduced resolution and/or reduced quality level, extracting the appropriate packets from the compressed codestream; c) decompressing data from the packets to reconstruct and dynamically render a proxy image; and d) post-processing the proxy image to create at least one decision list of operations performed on the proxy image.