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Speckle correlation imaging method and speckle correlation imaging device based on Wirtinger Flow algorithm

A related imaging and speckle image technology, applied in 2D image generation, calculation, image enhancement and other directions, can solve problems such as general robustness effect, and achieve the effect of improving robustness and quality

Active Publication Date: 2020-02-18
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

Although improved, it still does not avoid the need for prior information, and the effect on the robustness to measurement noise and system distortion in the reconstruction process is average.

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  • Speckle correlation imaging method and speckle correlation imaging device based on Wirtinger Flow algorithm
  • Speckle correlation imaging method and speckle correlation imaging device based on Wirtinger Flow algorithm
  • Speckle correlation imaging method and speckle correlation imaging device based on Wirtinger Flow algorithm

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Embodiment Construction

[0052] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0053] The speckle correlation imaging method and device based on the Wirtinger Flow algorithm proposed according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0054] First, a speckle correlation imaging method based on a Wirtinger Flow algorithm proposed according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0055] figure 1 It is a flowchart of a speckle correlation imaging method based on the Wirti...

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Abstract

The invention discloses a speckle correlation imaging method and device based on a Wirtinger Flow algorithm, and the method comprises the steps: S1, obtaining a target speckle image, and carrying outthe autocorrelation Fourier transform of the target speckle image according to the Wiener-Khinchin theorem, and obtaining a target power spectrum; and S2, establishing a cost function of the target image and the target power spectrum through a Wirtinger Flow algorithm, optimizing the cost function through an optimization algorithm, solving an optimal solution of the cost function, and reconstructing the target image according to the optimal solution. According to the method, the robustness of the target reconstruction process to measurement noise and system distortion can be improved, any prior information of the target is not needed, and the quality of the reconstructed target is improved.

Description

technical field [0001] The invention relates to the technical field of anti-scattering imaging, in particular to a speckle correlation imaging method and device based on the Wirtinger Flow algorithm. Background technique [0002] The light waves carrying target information will scatter when they pass through strong scattering media such as biological tissue, smoke, egg film, etc., so that the target information carried by the light waves will be re-encoded, and what the detector receives is a random speckle image, which cannot Identify the outlines and details of objects. [0003] Speckle correlation imaging technology is a technology developed based on the inherent optical memory effect of strong scattering media, which can perform imaging in the presence of strong scattering media on the transmission path. The optical memory effect was first proposed by Israeli scientist I. Freund et al., that is, after the light wave passes through the scattering medium, when the inciden...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/00
CPCG06T11/003G06T2207/20056
Inventor 边丽蘅李一鸣张军曹先彬
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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