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Projector calibration method, intelligent terminal and storage medium

A calibration method and projector technology, applied in the field of visual calibration, can solve the problem of low calibration accuracy of projectors

Active Publication Date: 2020-12-08
SHENZHEN UNIV
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  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a projector calibration method, an intelligent terminal and a storage medium, aiming to solve the problem of low calibration accuracy of projectors in the prior art

Method used

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  • Projector calibration method, intelligent terminal and storage medium
  • Projector calibration method, intelligent terminal and storage medium
  • Projector calibration method, intelligent terminal and storage medium

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Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0053] The projector calibration method described in the preferred embodiment of the present invention, such as figure 1 As shown, the projector calibration method includes the following steps:

[0054] Step S100, obtain the calibration image corresponding to the calibration board, and generate the world coordinate system corresponding to the calibration board, the camera image plane coordinate system corresponding to the camera, and the calibration image according to the preset coordinate parameters and the calibration image. The projector image plane coordinate system corresponding to...

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Abstract

The invention discloses a projector calibration method, an intelligent terminal and a storage medium, the projector calibration method is applied to a projector calibration system, and the projector calibration method comprises the following steps: obtaining a calibration image corresponding to a calibration plate, and according to a preset coordinate parameter and the calibration image, generating a world coordinate system, a camera image plane coordinate system and a projector image plane coordinate system; calculating calibration parameters of the projector according to the calibration image, the world coordinate system, the projector image plane coordinate system and the camera image plane coordinate system; correcting the image plane coordinate system of the projector according to thecalibration parameters to generate a first coordinate system of the projector; and randomly selecting a plurality of collinear correction points in the calibration plate, and correcting the projectorfirst coordinate system according to the correction point world coordinates corresponding to the correction points and the correction point first coordinates corresponding to the correction points inthe projector first coordinate system to generate a projector second coordinate system. The calibration efficiency of the projector can be effectively improved.

Description

technical field [0001] The technical field of visual calibration of the present invention, in particular, relates to a projector calibration method, an intelligent terminal and a storage medium. Background technique [0002] Structured light three-dimensional measurement technology is a non-contact three-dimensional measurement method, which has the advantages of non-destructive, high efficiency, low cost and high reliability. Among them, coded structured light in structured light does not need to be scanned and has high measurement efficiency, so it is widely used. A general structured light three-dimensional measurement system consists of a camera, a projector, and the object to be measured. The projector projects the coded stripes onto the object to be measured in chronological order. The surface of the object will distort the stripes and cause deformation. A deformed fringe image, and then decode the fringe image to obtain the three-dimensional coordinates of the object...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/25G01B11/00
CPCG01B11/2504G01B11/25G01B11/002
Inventor 钟小品朱智邓元龙
Owner SHENZHEN UNIV
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