Multi-Scale Block Adaptive Sampling Rate Compression Sensing Algorithm

Deqiang Cheng; Lirong Shao; Yan Li; Zenglun Guan

doi:10.3788/LOP56.031005

Laser & Optoelectronics Progress, Volume. 56, Issue 3, 031005(2019)

Multi-Scale Block Adaptive Sampling Rate Compression Sensing Algorithm

Deqiang Cheng^1、*, Lirong Shao¹, Yan Li¹, and Zenglun Guan²

¹ School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China

² China Coal Energy Group Co. Ltd., Beijing 100120, China

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Figures & Tables(12)

Fig. 1. Schematic of three level wavelet transform

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Fig. 2. Schematic of neighbor block combination

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Fig. 3. Flow chart of adaptive sampling of high-frequency signal

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Fig. 4. Block diagram of algorithm

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Fig. 5. Reconstruction effects by different algorithms. (a) BCS-SPL; (b) MS-BCS-SPL; (c) TD-MS-BCS-SPL; (d) proposed method

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Fig. 6. Reconstruction effect of Lena image. (a) Original picture; (b) BCS-SPL; (c) MS-BCS-SPL; (d) TD-BCS-SPL; (e) proposed method

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Fig. 7. Reconstruction effect of Goldhill image. (a) Original image; (b) BCS-SPL; (c) MS-BCS-SPL; (d) TD-BCS-SPL; (e) proposed method

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Fig. 8. Reconstruction effect of Mandrill image. (a) Original image; (b) BCS-SPL; (c) MS-BCS-SPL; (d) TD-BCS-SPL; (e) proposed method

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Fig. 9. Reconstruction effect and PSNR value of Peppers under different block sizes. (a) 4×4; (b) 8×8; (c) 16×16; (d) 32×32

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Fig. 10. Reconstruction effect and PSNR value of Barbara under different block sizes. (a) 4×4; (b) 8×8; (c) 16×16; (d) 32×32

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Table 1. PSNR value of reconstructed image

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Table 1. PSNR value of reconstructed image

Image	Algorithm	Sampling rate
Image	Algorithm	0.1	0.2	0.3	0.4	0.5
Lena	BCS-SPL	28.56	29.30	29.87	30.44	31.65
	MS-BCS-SPL	30.67	32.77	33.75	34.20	34.57
	TD-MS-BCS-SPL	31.76	34.54	35.94	35.83	36.29
	Proposed algorithm	33.47	35.86	37.05	38.95	39.64
Mandrill	BCS-SPL	20.27	21.03	22.47	23.80	25.39
	MS-BCS-SPL	21.37	22.78	24.26	25.16	26.01
	TD-MS-BCS-SPL	21.45	22.87	24.52	25.43	26.11
	Proposed algorithm	22.86	24.25	25.96	27.55	28.75
Goldhill	BCS-SPL	27.86	28.16	29.01	30.85	31.27
	MS-BCS-SPL	28.51	29.94	30.94	31.45	31.89
	TD-MS-BCS-SPL	29.00	30.84	31.78	32.09	32.14
	Proposed algorithm	30.17	30.85	33.38	34.85	36.05
Barbara	BCS-SPL	20.46	22.11	23.21	24.92	26.09
	MS-BCS-SPL	22.45	23.57	25.23	26.77	28.55
	TD-MS-BCS-SPL	23.49	23.74	26.67	27.59	30.09
	Proposed algorithm	25.21	26.79	28.39	29.97	31.57

Table 2. Calculation time of Lena image at 0.3 sampling rate for different algorithms
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Table 2. Calculation time of Lena image at 0.3 sampling rate for different algorithms
Algorithm Time /s
BCS-SPL 30
MS-BCS-SPL 46
TD-MS-BCS-SPL 35
Proposed algorithm 15

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Deqiang Cheng, Lirong Shao, Yan Li, Zenglun Guan. Multi-Scale Block Adaptive Sampling Rate Compression Sensing Algorithm[J]. Laser & Optoelectronics Progress, 2019, 56(3): 031005

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