Title:
HIGH QUALITY WIDE-RANGE MULTI-LAYER COMPRESSION CODING SYSTEM
Document Type and Number:
WIPO Patent Application WO2006031737
Kind Code:
A9
Abstract:
Systems, methods, and computer programs for high quality wide-range multi-layer image compression coding, including consistent ubiquitous use of floating point values in essentially all computations; an adjustable floating-point deadband; use of an optimal band-split filter; use of entire SNR layers at lower resolution levels; targeting of specific SNR layers to specific quality improvements; concentration of coding bits in regions of interest in targeted band-split and SNR layers; use of statically-assigned targets for high-pass and/or for SNR layers; improved SNR by using a lower quantization value for regions of an image showing a higher compression coding error; application of non-linear functions of color when computing difference values when creating an SNR layer; use of finer overall quantization at lower resolution levels with regional quantization scaling; removal of source image noise before motion-compensated compression or film steadying; use of one or more full-range low bands; use of alternate quantization control images for SNR bands and other high resolution enhancing bands; application of lossless variable-length coding using adaptive regions; use of a folder and file structure for layers of bits; and a method of inserting new intra frames by counting the number of bits needed for a motion compensated frame.
Application Number:
PCT/US2005/032428
Publication Date:
June 08, 2006
Filing Date:
September 12, 2005
Export Citation:
Assignee:
DEMOS GARY (US)
International Classes:
H04N7/26
Download PDF:
Previous Patent: BACTERIA AND MOLD RESISTANT WALLBOARD
Next Patent: SYSTEM AND METHOD FOR COMMUNICATING MESSAGES IN A MESH NETWORK
Next Patent: SYSTEM AND METHOD FOR COMMUNICATING MESSAGES IN A MESH NETWORK