Figure 11.

Qualitative comparison between the proposed method and the original random forest: (a) original RGB images; (b) ground truths; (c) results of the original random forest; (d) results of the proposed method. The white region indicates the pixels that are correctly detected as FOD, the black indicates the pixels that are correctly detected as background, the yellow indicates the pixels that are incorrectly detected as FOD, and the green indicates the pixels that are incorrectly detected as background.