A Fast and Efficient Adaptive Threshold Rate Control Scheme for Remote Sensing Images

Table 1

PSNR comparison of the proposed algorithm and the PCRD algorithm.

Test image	PSNR/dB						ΔPSNR/dB
	Bit rate	0.125	0.25	0.5	1.0	2.0	0.125	0.25	0.5	1.0	2.0
1	PCRD	19.160	20.604	23.080	27.622	36.548	0	−0.151	−0.022	0	0
	proposed	19.160	20.453	23.058	27.622	36.548
2	PCRD	21.207	22.750	25.086	29.021	35.497	0.008	−0.011	−0.012	0	−0.004
	proposed	21.215	22.739	25.074	29.021	35.493
3	PCRD	22.532	24.212	26.378	30.096	36.376	0	−0.002	−0.056	0	0
	proposed	22.532	24.210	26.322	30.096	36.376
4	PCRD	24.742	26.945	29.902	33.904	39.701	0	−0.005	0	0	−0.054
	proposed	24.742	26.940	29.902	33.904	39.647
5	PCRD	22.303	24.424	27.689	32.748	40.255	0.004	−0.018	0	0	−0.082
	proposed	22.307	24.406	27.689	32.748	40.173
6	PCRD	17.639	19.449	21.862	25.865	32.024	0	0.017	−0.011	0	0
	proposed	17.639	19.466	21.851	25.865	32.024
7	PCRD	22.908	24.864	27.303	30.702	36.664	−0.044	−0.022	−0.057	0	0
	proposed	22.864	24.840	27.246	30.702	36.664
8	PCRD	22.939	24.913	27.399	30.798	36.721	−0.052	−0.052	−0.098	0	0.002
	proposed	22.887	24.861	27.301	30.798	36.723