Fast center search algorithm with hardware implementation for motion estimation in HEVC encoder

Abstract

Abstract-This

Adaptive low‐complexity motion estimation algorithm for high efficiency video coding encoder

“…In addition, our proposed algorithm can achieve better time saving percentages comparing with [12] by changing its parameters α and search window range. Table 5 shows that our proposed algorithm can achieve the same time saving percentages in [12, 21, 23, 24] with better PSNR quality and less extra needed bit rate. Generally, CASA shows that it does not affect PSNR and bit rate and saves the same quality of full search.…”

“…Table 5 shows the PSNR, bit rate and time comparisons between the proposed method and adaptive search window selection algorithm for HEVC proposed in [12]. Compared with [12, 21, 23, 24], our proposed CASA with α = 2 and search window = 16 does not achieve the same time savings, however, it achieves better PSNR and bit rate with remarkable values. Our proposed algorithm saves the same quality of PSNR and needs just about 0.638% extra bit rate while achieving about 57.33% time savings on average.…”

“…3 a . FCSA as discussed in [21] has the possibility to check all candidates in search window, but, with a different order of search as shown in Fig. 3 b .…”