Method and apparatus for coding framework based on residual movement transformed on the basis of supercompleta for compression of vu00ecdeo

摘要

Method and apparatus for coding framework based on residual movement transformed on the basis of supercompleta for compression of vu00ecdeo ".The present invention relates to a method for compressing images of mobile digital or video signals based on a processed base supercompleta using a search algorithm to correspondThe modified apperance. More specifically, this invention relates to efficient coding of residual image motion, which is generated by the process of estimation and motion compensation.An algorithm of segmentation of residual energy (RESA) can be used to obtain an initial estimate of the shape and position of regions of high energy in the residual image.A progressive elimination algorithm (PEA) can be used to reduce the number of evaluations in the process of searching for corresponding correlation.The RESA or pea can accelerate the encoder many times to find the base matched dictionary based supercompleto pre specified.Three parameters of the pattern matched form an atom, which defines the index in the dictionary and the position of the selected basis.As the domestic product between the basic standard chosen, and the residual signal.The present invention provides a new coding method of position of atom using techniques such as quad tree and a new scheme of quantification of module of atom.A simple and efficient adaptive mechanism is provided for the design of quantification and coding position to allow a system according to the present invention operates properly.M situations of low, medium and high bit rate.These new components of the algorithm may result in an encoding process faster and in an improved compression performance for the video encoder based on demand DAnd the previous correspondence.