Journal of Remote Sensing / 2022 / Article / Fig 8

Research Article

Through-Foliage Tracking with Airborne Optical Sectioning

Figure 8

RGB values of target (, red circles) and background (, blue points) pixels for all raw images and resulting integral image of the two example sets shown in Figures 4 (top two rows) and 5 (bottom two rows). The spectral mean background vectors (, green crosses) and 2σ ellipses (enclosing 95% of the pixel data) generated from the eigenvectors and eigenvalues of the covariance matrices (blue and red ellipses for background and target data, respectively) are illustrated. RGB space is projected to two principle axes in (a)–(c), and is 3D rendered, zoomed, and cropped to show details in (d).