METHOD AND APPARATUS FOR ENCODING AND DECODING

摘要

PURPOSE: A video encoding method and a computer-readable recording medium are provided to improve encoding efficiency by performing a frequency transformation and scanning of a chrominance signal efficiently. CONSTITUTION: A prediction mode specify unit specifies an intra prediction mode for a current block (S1350). A scanning unit scans a residual signal from the intra prediction of the current block (S1370). The scanning unit determines a scanning type of a residual signal of a luminance signal and a chrominance signal based on the intra prediction mode for a luminance sample of the current block. [Reference numerals] (AA,CC,EE,GG) No; (BB,DD,FF,HH) Yes; (S1310) Estimation within a screen ?; (S1320) Convert a length value into an index; (S1330) Obtain IntraPreMode