Implementation of target trackability metric based on gray-level co-occurrence matrix (GLCM)

A target metric (TM) based on the gray-level co-occurrence matrix (GLCM) has been implemented as a Windows program. The model can be used for calculating a target´s trackability in an image sequence as a function of frame index. An alternative use for the model can be to calculate the trackability of a target in an image assuming that the target could be moved to different positions in the image. If LLCM TM is used with care it is a powerful tool for evaluation of a target´s trackability. The trackability metric for a target can be used as a measure for how well a target´s signature has been adapted to its surroundings. It can also be used to evaluate an obscurant countermeasure. An example of how GLCM TM can be used has been presented. In this example the effect of multispectral waterfog as a countermeasure for an armored vehicle was evaluated. The results were also compared to results from a correlation tracker. Multispectral waterfog was shown to be very effective against a target tracker. However, in order to show that, additional tools had to be used in order to interpret the GLCM TM results correctly.