Object Imaging and Point-spread-function Retrieving through Scattering Media via Bispectrum Analysis Combined Phase-diversity

Abstract

Noninvasive object imaging through scattering media has attracted the attention of experts given that the potential application in the biomedical. The traditional method includes speckle correlation and bispectrum analysis suffer from the requirement of high-resolution speckle pattern and multiple iterations, due to these methods are based on the idea of statistical average. Meanwhile, the object imaging processes are complexity due to the point-spread-function of system is approximately the Dirac delta function or real number in these methods. Therefore, we report an effective noninvasive imaging method through scattering media via bispectrum analysis combined phase-diversity. Object imaging and point-spread-function retrieving using low speckle pattern, no multiple iterations, nor randomly assign initial values. In additional, the imaging efficient is increased by deconvolution operation using retrieved point-spread-function. This work has been proved by simulations and experiments, which will be beneficial to further biomedical applications.