Acta Photonica Sinica, Volume. 47, Issue 4, 407001(2018)
Research of Phase Retrieval Method in Laser Reflective Tomography Imaging
The moving and jitter of the target will lead to the rotation of the center of rotation in the process of laser reflection tomography. This will lead to reconstruction image dislocation and artifact, a modified error reduction algorithm based on phase recovery technology was proposed. Firstly, the phase information of reconstructed target was obtained through iterative iteration of light intensity. In addition, the convergence of algorithm was also effectively improved by increasing the initial constraints and the constraints in the spatial and frequency domains. This method can effectively improve the easy to fall into the local minima problem and phase recovery method for image reconstruction optimization is obtained. The simulation experiments show that the mean square error of the three sets of reconstructed images is reduced from 0.774 to 0.551, and the image reconstruction artifact can be effectively eliminated. The experimental results also show that the resolution of the laser reflective tomography system is improved.
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YANG Biao, HU Yi-hua, LIN Fang. Research of Phase Retrieval Method in Laser Reflective Tomography Imaging[J]. Acta Photonica Sinica, 2018, 47(4): 407001
Received: Oct. 23, 2017
Accepted: --
Published Online: Mar. 15, 2018
The Author Email: Biao YANG (yangbiao135@163.com)