HEVC Texture-bassed Early Decision Method of Block Size for Fast Intra Prediction in an HEVC Encoder

摘要

The present invention relates to a block candidate early decision method based on an image characteristic for improving an intra prediction speed of an HEVC encoder; A method for determining a block size candidate for an HEVC intra prediction, the method comprising: a first step of selecting a plurality of partitions having a low cost by calculating a cost of partitions using the SATD value of each prediction mode calculated in the RMD step; And a second step of performing RDO for determining an optimal mode using the selected partition candidates if it is determined that the selected plurality of candidate partitions have homogeneous image characteristics. According to the present invention, the cost of partitions is calculated by using the SATD value of each prediction mode calculated in the RMD step, and a plurality of partitions having a low cost are selected as candidates to determine an optimal mode. In the RDO step, Thereby improving the intra prediction speed of the HEVC encoder.