ADAPTIVE CU DEPTH RANGE ESTIMATION IN HEVC ENCODER

摘要

Provided is an adaptive coding unit (CU) depth range estimation method to increase speed of an HEVC encoder. According to an embodiment of the present invention, the CU depth range estimation method estimates the current CU depth range by acquiring depths of a part of z-order indexes among adjacent CUs of the current CU to be encoded. At this time, depths of one line or one z-order index are acquired. Accordingly, an amount of calculation is reduced in an HEVC image encoder, and thus speed of the HEVC encoder is expected to increase.