New Method for Infrared Small Target Detection under Complex Background
A new method based on the wavelet packet transform and skewness was proposed for infrared small target detection under complex background.The wavelet packets were applied to decompose the image into pyramid subbands at different scales and solve the problem of the higher frequencies having lower resolutions.Then a Gaussian measurement criterion based on skewness was proposed to test the Gaussian nature of the wavelet packet coefficients and finally the exact detection result was obtained.The experiments were performed for some real IR images, and the results prove that the proposed method is effective for small IR target detection.