Survey of Image Complexity Metrics for Infrared Target Recognition
Metrics of infrared image complexity were not only used to characterize the variation of complex scenario for target recognition,but also are applied widely in infrared imaging system performance prediction and evaluation,performance comparison of target recognition algorithms,constructing and improving target acquisition model,and other fields.The definition of image complexity for infrared target recognition is presented,and some recently presented and some classical image complexity metrics in this field are summarized and analyzed comparatively.The basis for choosing metrics is proposed,and the shortcomings and deficiencies of existing metrics are pointed out.Image complexity metrics for infrared target recognition will develop towards fusing many features or integrating many metrics in the future.