METHOD FOR CODING AND RECONSTRUCTING A PIXEL BLOCK AND A CORRESPONDING DEVICE FOR OMITTING NECESSITY OF CODING AN ILLUMINATION LOCAL VARIATION PARAMETER OR PARAMETERS

摘要

PURPOSE: A method for coding and reconstructing a pixel block and a corresponding device are provided to implement an illumination variation parameter or refinement of parameters, thereby improving coding efficiency.;CONSTITUTION: A coding device decodes and inversely quantizes N residual coefficients(100). The coding device determines N reference coefficients. The coding device repetitively reconstructs N coefficients for a current block from N prediction coefficients determined from the N reference coefficients by using an illumination variation model which is defined by one or more illumination variation parameters(175). The coding device converts the N coefficients into the current block of N pixels(180).;COPYRIGHT KIPO 2013;[Reference numerals] (160) All C^i_rec?; (AA) No; (BB) Yes