cqg0223/pmp

This repository is a implementation of "phase-shift + multi-frequency heterodyne" in the traditional Phase Measurement Profilometry.

PMP(Phase Measurement Profilometry)

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Introduction

This repository is a python implementation of "phase-shift + multi-frequency heterodyne" in the traditional PMP method. The image data in the './data' is collected by a "binocular camera + single projector". The projector projects 3 frequency fringe images separately, and each frequency fringe image projects 4 phase-shift fringes, so each camera acquires 12 images.

Figure1.The camera acquires an image of a certain frequency of stripes(4 phase shift)

Figure2.Wrap phase image of three frequencies(left:28 middle:26 right:24)

Figure3.Unwrap the image(left:combining 28 and 26 middle:combining 26 and 24)

Figure4.The result of unwrapping the phase

Getting Started

Make sure the './Resourse' folder is empty.

python main.py