Research Article

Microwave Imaging of Voids in Oil Palm Trunk Applying UWB Antenna and Robust Time-Reversal Algorithm

Table 1

The MSE and SSIM comparison of the reconstructed images.

ImagesMSESSIMImagesMSESSIM

Figures 710, RTR255.0050.9775Figure 14(b), RTR213.64720.9818
Figures 710, TR295.2330.8756Figure 14(b), TR216.7440.9752
Figures 710, DMAS458.560.8021Figure 14(b), DMAS201.0020.9872
Figures 710, DAS580.560.7898Figure 14(b), DAS198.93200.9832
Figure 11(a), RTR290.230.9687Figure 15, RTR113.050.9921
Figure 11(a), TR311.650.8567Figure 15, TR122.350.9811
Figure 11(a), DMAS384.2210.8187Figure 15, DMAS146.520.9750
Figure 11(a), DAS488.320.7923Figure 15, DAS178.230.9115
Figure 11(b), RTR135.250.9843Figure 18, RTR189.81030.9833
Figure 11(b), TR158.360.9278Figure 18, TR192.68190.9826
Figure 11(b), DMAS256.580.872Figure 18, DMAS196.03040.9824
Figure 11(b), DAS399.580.8055Figure 18, DAS202.92460.9816
Figure 12, RTR129.150.9899Figure 19, RTR187.77920.9838
Figure 12, TR294.560.9679Figure 19, TR226.48090.9807
Figure 12, DMAS390.570.8943Figure 19, DMAS254.39810.9793
Figure 12, DAS530.480.74Figure 19, DAS411.21050.9688
Figure 13, RTR125.3696.25Figure 20, RTR102.2440.9901
Figure 13, TR255.34985.258Figure 20, TR351.96880.9672
Figure 13, DMAS288.9880.522Figure 20, DMAS421.35490.9598
Figure 13, DAS321.00578.85Figure 20, DAS605.52440.9456
Figure 14(a), RTR110.320.9978Figure 21, RTR105.5110.9956
Figure 14(a), TR243.28010.9802Figure 21, TR286.24670.9646
Figure 14(a), DMAS277.98020.975Figure 21, DMAS353.98070.9696
Figure 14(a), DAS390.60240.9658Figure 21, DAS355.29210.9678