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Bailing Li

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Proceedings Article | 8 October 2015 Paper

Analysis on correlation imaging based on fractal interpolation

Bailing Li, Wenwen Zhang, Qian Chen, Guohua Gu

Proceedings Volume 9675, 967536 (2015) https://doi.org/10.1117/12.2204938

KEYWORDS: Fractal analysis, Iterated function systems, Glasses, Light sources, Image analysis, Image resolution, Statistical analysis, Optical testing, Particles, Fuzzy logic

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One fractal interpolation algorithm has been discussed in detail and the statistical self-similarity characteristics of light field have been analized in correlated experiment. For the correlation imaging experiment in condition of low sampling frequent, an image analysis approach based on fractal interpolation algorithm is proposed. This approach aims to improve the resolution of original image which contains a fewer number of pixels and highlight the image contour feature which is fuzzy. By using this method, a new model for the light field has been established. For the case of different moments of the intensity in the receiving plane, the local field division also has been established and then the iterated function system based on the experimental data set can be obtained by choosing the appropriate compression ratio under a scientific error estimate. On the basis of the iterative function, an explicit fractal interpolation function expression is given out in this paper. The simulation results show that the correlation image reconstructed by fractal interpolation has good approximations to the original image. The number of pixels of image after interpolation is significantly increased. This method will effectively solve the difficulty of image pixel deficiency and significantly improved the outline of objects in the image. The rate of deviation as the parameter has been adopted in the paper in order to evaluate objectively the effect of the algorithm. To sum up, fractal interpolation method proposed in this paper not only keeps the overall image but also increases the local information of the original image.

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