The detectors based on the ordered statistic (OS and CMLD) aim at overcoming this difficulty by rejecting some samples with high coherence value over an M-pixel local area.
7(c) shows the CMLD change map obtained with the following parameter values: M = 3 x 3, k = 5 and T = 0.603.
Figure 7(d) shows the change map obtained with CMLD using two guard cells in the range direction and the following parameter values: M = 3 x 3, k = 5 and T = 0.587.
8 and indicates that CMLD outperforms both MLD and OS.
The performance of the MLD, OS and CMLD detectors is significantly degraded.
The results show that CMLD is well suited to this kind of problem.