Patent ID: 7724964
Filing Date: 2010-05-25
Classification: G11B,H04N

Abstract:
1. A method of digital intermediate (DI) processing, comprising: using a computer to implement the steps of a) providing a scalable compressed codestream for a sequence of uncompressed digital images, said codestream providing random access to packets of compressed data to extract spatial regions of the images at a plurality of resolutions and/or a plurality 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; d) post-processing the proxy image to create a decision list of operations performed on the proxy image; e) repeating steps b through d for a plurality of post-processing functions on one or more proxy images; and f) applying the decision lists to the sequence of uncompressed digital images.