用阈值函数分析粒子场同轴全息非线性记录对再现像的影响

用阈值函数分析了粒子场同轴全息非线性记录对再现像的影响，从理论上得到了非线性记录影响粒子场同轴全息再现像的模型，并数值模拟了不同形状粒子在非线性记录下的再现像，得到再现像出现了边缘剪切效应.实验验证了数值模拟的结果，完善了粒子场同轴全息理论，并为粒子场同轴全息图像处理提供了光学产生边缘剪切效果，节约了图像处理的时间.

Analysis of Influences of Coaxial Holographic Nonlinear Recording for Particles Field on Image Reconstruction by Using the Threshold Value Function

The influence on image reconstruction of the coaxial holographic nonlinear recording for particles field was analyzed by using the threshold value function. In theory, the simulation model was built, in which the reconstructions of different shapes particles were recorded in the nonlinear segment of D-LogE. The effect of edge shearing appeared in the reconstruction. The simulation result and the experimental result are in good agreement. The result can develop the theory of the in-line holography. The effect of edge shearing not only offer the optic method for the image manipulation in the particle in-line holography but also shorten the time of image.