16.4.1 HYDICE Image Experiments
Since the precise knowledge of the 19 R panel pixels is known according to the ground truth provided in Figure 1.15(b), the mean of each of five panel signatures is calculated by averaging the R pixels for each of five rows and shown in Figure 1.16. These five panel signatures were used for discrimination and also as a database for identification. Table 16.1 tabulates identification errors of 19 R panel pixels resulting from pixel-based hyperspectral measures, ED, SAM, OPD, SID, and correlation-weighted hyperspectral measures, MDRX, MDCEM, MFDRX, and MFDCEM where all the four correlation-weighted hyperspectral measures made no errors compared to pixel-based hyperspectral measures that made errors ranging from 4 to 6 with the SID and ED being the best and worst measures.
Since the performance of a posteriori correlation-weighted hyperspectral measures varies with the knowledge of the U used in their measures, their results are not included in Table 16.1. Instead, this issue is investigated separately. To see the impact of various ...