Time Reversal Reconstruction Algorithm Based on PSO Optimized SVM Interpolation for Photoacoustic Imaging

Table 2

Reconstruction performance of different interpolation methods on time reversal algorithm (15% noise).

Time reversal method	MSE (30)	PSNR (30)	TIME (30)/s	MSE (50)	PSNR (50)	TIME (50)/s
Conventional	0.3230	1.7000	0	0.1913	3.9749	0
Linear interpolation	0.1384	5.3813	0.1094	0.0522	9.6185	0.1090
Cubic convolution interpolation	0.1336	5.5324	0.0101	0.0511	9.7049	0.0105
Cubic spline interpolation	0.1236	5.8695	0.0121	0.0498	9.8194	0.0123
PSO optimized SVM interpolation	0.0776	7.8775	0.4978	0.0255	12.7833	0.4979