Dynamic search-range control algorithm for fast interframe coding in scalable video coding

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.…”

“…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. On the other hand, other algorithms in [12, 23, 24] need more than 2.851% extra bit rate on average and achieves about 0.166 PSNR losses while achieving about 75.83% time saving. As HEVC answers the need for high quality videos at lower bit rates, therefore, our proposed algorithm focuses on the PSNR quality and the extra needed bit rate.…”