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Calibration method and device for relative pose parameters and device for determining three-dimensional shape

A relative pose and calibration method technology, applied in image data processing, image analysis, image enhancement, etc., can solve problems such as difficult three-dimensional shape measurement and complex control field

Active Publication Date: 2018-08-03
湖南峰华智能科技有限公司
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Problems solved by technology

[0007] The present invention provides a calibration method and device for relative pose parameters and a device for determining a three-dimensional shape, which are used to solve the problem of constructing a two-dimensional Or the complexity of the three-dimensional control field leads to the difficulty of three-dimensional shape measurement

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  • Calibration method and device for relative pose parameters and device for determining three-dimensional shape

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Embodiment Construction

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0051] Using the structured light projected by the projector and the digital camera to recover the geometric model in the three-dimensional space, this process is referred to as structured light three-dimensional imaging hereinafter. The principle of structured light three-dimensional imaging is to use the recognizable pattern projected by the pro...

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Abstract

The invention discloses a method and a device for calibrating the relative pose parameters of a structured light projector and a camera, and a device for determining a three-dimensional shape. The calibration method of the relative pose parameters includes: calculating independent parameters ω, κ, by, bz; using the one-dimensional control information and the obtained parameters ω, κ, by, bz to obtain the baseline component Tx; determining the Tx in the three-dimensional space Rigid body transformation model (R,T). An embodiment of the present invention proposes a calibration method for realizing the relative pose relationship between a projector and a digital camera by using one-dimensional control information. This method does not need to establish a special control field, which has advantages in the simplicity of the method.

Description

technical field [0001] The invention relates to the field of three-dimensional shape measurement, in particular to a calibration method and device for relative pose parameters and a device for determining three-dimensional shape. Background technique [0002] In several technical fields, there is a great need to determine the three-dimensional shape of objects, for example: mechanical engineering, construction, automotive, mining, dentistry, etc. The shapes of objects to be measured are various and not standardized. This makes it difficult to accurately measure the shape in all dimensions. [0003] Using the structured light projected by the projector and the digital camera to restore the geometric model in the three-dimensional space is an important technical means to realize three-dimensional imaging. A method to calculate the three-dimensional shape of the surface of the object to be measured in a non-contact manner. Hereinafter, this process is referred to as structur...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/70
CPCG06T2207/10004G06T2207/20048G06T2207/30244
Inventor 回丙伟滕书华李洪
Owner 湖南峰华智能科技有限公司
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