Saisai Niu

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In order to improve the observation effect and further study on the human retinal cell image, image processing technology is used for restoration from the distortion and degradation of images, which are acquired through retinal cell imaging system based on adaptive optics. In this paper, two commonly used image restoration algorithms were introduced: Wiener(More)
—A new adaptive method is given in this paper to estimate the centroid of images caught by Hartmann-Shack wavefront sensor after analyzing the reason of causing error. This method is based on the morphological filter, dynamic tracing of spot window, and iterative approximation algorithm. It is more accurate and adaptive than general methods. The(More)
—In view of the characteristics of human eye aberrations, a set of adaptive optics system for real-time wave-front measurement and correction is designed. The system realizes wave-front reconstruction based on the model reconstruction algorithm of Zernike polynomials by obtaining the spot pattern of human eye wave-front aberrations with the aid of(More)
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