Underwater Acoustic Image Encoding Based on Interest Region and Correlation Coefficient

Table 2

Experimental results comparison of different algorithms.

Algorithm	Image
	Ship			Plane
	Encoding Time (s)	PSNR	Compression ratio	Encoding Time (s)	PSNR	Compression ratio
		(dB)			(dB)
BFC (4 × 4)	30.40	159.70	5.12	29.19	160.12	5.12
BFC (8 × 8)	26.58	40.41	20.48	25.02	40.54	20.48
VBFC (4 × 4)	29.80	17.71	5.12	28.41	17.31	5.12
VBFC (8 × 8)	26.38	5.05	20.48	24.75	5.12	20.48
PSO (4 × 4)	29.23	11.78	5.12	28.04	11.38	5.12
PSO (8 × 8)	25.69	3.46	20.48	24.25	3.57	20.48
The proposed algorithm	28.77	3.02	13.87	27.49	3.15	13.25