INVERSE TRANSFORM UNIT DESIGN METHOD FOR HEVC DECODER

摘要

The present invention relates to a method for designing an inverter for an HEVC decoder, which can provide high-definition images at low frequencies while improving the decoding efficiency of HEVC, and can minimize the size of hardware by reducing complexity in calculation. In particular, the method can restructure a 3232 inversion matrix used in decoding the HEVC into two 1616 matrices, can calculate the restructured matrices using a shift calculator and an addition calculator, and can minimize the size of hardware and significantly improve the decoding efficiency even at low frequencies by applying a multi-cycle path to design of the hardware. In addition, the method can be applied to not only a 3232 inversion matrix but also 1616 or 88 inversion matrix, etc as well as HEVC encoding, and can be easily applied to various embedded systems for image processing. Therefore, the method can improve reliability and competitiveness in a high-definition video processing field using HEVC as well as similar or related fields.