Detection algorithm of weak infrared point targets under complicated background of sea and sky

The new algorithm based on wavelet transform modulus maxima was presented t o resolve the problem of weak infrared point targets detection under the co mplicated background of sea and sky. All the singularity points were got th rough the wavelet transfrom modulus maxima. The algorithm eliminates the co mplicated background of clouds, offing and sea antenna, enhances the abilit y of point target detection in single frame. Experimental results show that the algorithm can detect the point targets with SCR of 2.