An autonomous predictive centroiding algorithm of unmatched stars is presented in this paper to obtain the real star centroidings of identified stars with star tracking algorithm.

An image centroid method for seam tracking in gas tungsten arc welding;

In this paper the degraded satellite images are restored by our suggested HMT ForWaRD method, in which the degraded image is deblurred by Wiener filter in Fourier domain and then the remained unwanted white gaussian noises are removed by hidden Markov tree (HMT) method in the complex wavelet domain.