Hyperspectral Data Processing: Algorithm Design and Analysis

28.6 Real Data Experiments

In this section, the Hyperspectral Digital Imagery Collection Experiment (HYDICE) image scene shown in Figure 1.15(a) was used for experiments, which has a size of 64 × 64 pixel vectors with 15 panels in the scene and the ground truth map provided in Figure 1.15(b).

28.6.1 KFSSE

To implement KFSSE on the HYDICE real data, the variances of the two additive Gaussian noises v and u in the state and measurement equations were set to according to experiments conducted by Chang and Brumbley (1999a, 1999b), and σ_u was chosen as to achieve SNR = 30 dB. Figure 28.11(a)–(e) shows estimates of the five panel signatures p_i for , while Figure 28.12(a)–(e) shows the ratios of estimation errors to their corresponding reflectance spectra in Figure in terms of the logarithm function so as to achieve better visualization for assessement.

Figure 28.11 KFSSE-estimated spectra of the five reflectance spectra in Figure 1.16.

Figure 28.12 Ratios of estimation errors to the five reflectance spectra in Figure 1.16.

As shown in Figure 28.12, KFSSE performed relatively well in estimating ...