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

Table 1

Reconstruction performance of different interpolation methods on time reversal algorithm (5% noise).

Time reversal method	MSE (30)	PSNR (30)	TIME (30)/s	MSE (50)	PSNR (50)	TIME (50)/s
Conventional	0.3221	1.7114	0	0.1904	3.9955	0
Linear interpolation	0.1362	5.4504	0.1097	0.0498	9.8149	0.1091
Cubic convolution interpolation	0.1317	5.5954	0.0099	0.0490	9.8876	0.0100
Cubic spline interpolation	0.1220	5.9287	0.0122	0.0480	9.9752	0.0124
PSO optimized SVM interpolation	0.0765	7.9569	0.4958	0.0240	12.9815	0.4977