New Adaptive Algorithms for GOP Size Control with Return Channel Suppression in Wyner-Ziv Video Coding

Table 1

Number of additional operations per frame for each GOP size 𝑘, 1≤𝑘≤𝑆_max, incurred by the proposed GOP size control algorithm.

Operation	Average Interpolation	Reconstruction	Quantization (WZ and SI)	Estimation of the α parameter	PSNR estimation	Rate (𝑅) estimation
Additions	𝑃𝑄	𝑃𝑄		2𝑃𝑄−1	2𝑃𝑄−1	1×2^2𝑀−1
Multiplications	𝑃𝑄			𝑃𝑄+1	𝑃𝑄+4	5×2^2𝑀+1
Log or Exp					1	2×2^2𝑀
Comparisons		𝑃𝑄
Logical AND			2𝑃𝑄
TOTAL	2𝑃𝑄	2𝑃𝑄	2𝑃𝑄	3𝑃𝑄	3𝑃𝑄+3	8×2^2𝑀