Craig Birkmaier wrote: >> Is there a Moore's Law regarding codec efficiency, or >> is there a theoretical limit? I mean it seems to be >> impossible to represent an entire 1920x1080 frame with >> a single bit (unless the entire screen is monotone), >> so there must be a theoretical limit as to how much you >> can compress an image and still have it be a practical >> display. > > An excellent question John. With your permission, I may > incorporate it into my column on video compression for > the March issue of BE. > > And i am looking forward to other responses: this could > be an interesting thread! > > Moore's law is certainly a factor, as it provides some > indication of what we can expect in terms of > computational resources for video compression algorithms > in the future. Equally important, it can help us predict > the resources that will be available in low cost consumer > appliances in the future. Except that I *think* what John really wondered is whether there is a Shannon's Law equivalent for codecs. That is, a theoretical limit to how much a given image (or audio stream) can be compressed. This is independent of Moore's Law, other than the presumed requirement of more computing power needed as compresssion increases. Bert ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.