Phase unwrapping method and device in Doppler optical coherence tomography

Abstract

An embodiment of the present invention provides a phase unwrapping method and device in Doppler optical coherence tomography, wherein the method includes: based on the entangled image in Doppler optical coherence tomography, using a pre-established deep learning-based The phase unwrapping classification model of the residual network obtains the winding number corresponding to the winding phase in the winding image; based on the winding phase and its corresponding winding number, calculates the real phase corresponding to the winding image; wherein, the depth-based The phase unwrapping classification model of the learning residual network is to set the deviation between the winding phase and the real phase at an integer multiple of 2π in advance, and based on this setting, a classification based on a deep learning residual network is constructed model, and transform the phase unwrapping problem into a semantic segmentation problem, and then use the constructed training samples for training and acquisition. The embodiment of the present invention can effectively shorten the time-consuming operation process, realize real-time unwrapping, and is more beneficial to realize multi-module integration.

Description

Technical field [0001] The present invention relates to the field of photoelectric imaging, and more particularly to a phase deraving method and apparatus in a Doppler optically coherent chromatographic imaging. Background technique [0002] Doppler optically coherent chromatography techniques are widely used in biomedical imaging due to their high resolution, non-invasive, real-time three-dimensional imaging. For fluid research (such as vascular imaging), accurate phase information can provide valuable potential biometric information. However, in the actual imaging system, the phase diagram appears from the measurement length exceeding one wavelength. [0003] For phase-wound problems, the phase deinterlergery is resolved by the phase delay refers to recovery of the wound phase from (-π, π) to obtain real phase information. In the previous studies, various phases have been proposed, such as path tracking methods (such as mask cutting methods, chart cutting, minimum discontinuous...

AI Technical Summary

Problems solved by technology

However, the calculation process of this method is complex and time-consuming, and it cannot achieve the effect of real-time unwrapping, which is not conducive to the realization of multi-module integration

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