A structured light field three-dimensional imaging method and a system thereof

Abstract

A structured light field three-dimensional imaging method is provided. The method includes acquiring a structure light field recorded by an imaging device of a structured light field three-dimensional imaging system, solving the phase of the structured light field, comparing the solved phase of the structured light field with a reference plane phase to acquire a phase difference, calculating a depth value of each light line by utilizing a phase-depth mapping relation of the structured light field, and constructing multi-direction three-dimensional imaging by utilizing a direction and the calculated depth value of each light line in the structured light field. The structured light field three-dimensional imaging system is also provided. The structured light field is acquired by combining light field imaging and structured lighting in the technical scheme. The mapping relation between the phase and a scene depth of the structured light field is deduced. One time of collection and multi-direction three-dimensional imaging can be achieved. The method and the system facilitate further research of structured light field three-dimensional imaging theories and applications and meet requirements on multi-view three-dimensional digital imaging and measurement.

Description

technical field [0001] The invention relates to the field of optical imaging, in particular to a structured light field three-dimensional imaging method and system thereof. Background technique [0002] Optical 3D imaging based on fringe projection is a non-contact, full-field measurement method that has been widely used for its high imaging density, high imaging speed, and high imaging accuracy. [0003] The traditional fringe projection 3D imaging method can only acquire 3D data in a specific direction at one time. With the expansion of the application range of the fringe projection 3D imaging method, it has become difficult for single-viewpoint 3D imaging to meet the 3D imaging requirements for special objects and special performance. Therefore, there is an urgent need to develop an optical imaging method for one-time acquisition and multi-directional three-dimensional imaging. Contents of the invention [0004] In view of this, the purpose of the present invention is...

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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a structured light field three-dimensional imaging method and its system, which aims to solve the limitation of single-viewpoint imaging in the existing fringe projection three-dimensional imaging method, so as to realize one-time collection, multi-directional structured light field 3D imaging

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