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Structured light 3D reconstruction method and device based on array camera

An array camera and 3D reconstruction technology, applied in the direction of using optical devices, measuring devices, 3D modeling, etc., can solve the problem of increased calculation

Active Publication Date: 2020-03-24
HUATIAN TECH KUNSHAN ELECTRONICS
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Problems solved by technology

The increase of the auxiliary phase mechanism reduces the mismatching phenomenon caused by the fuzzy target features, but at the same time the amount of calculation increases correspondingly

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  • Structured light 3D reconstruction method and device based on array camera
  • Structured light 3D reconstruction method and device based on array camera

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Embodiment Construction

[0022] In order to understand the technical content of the present invention more clearly, the following examples are given in detail, the purpose of which is only to better understand the content of the present invention but not to limit the protection scope of the present invention. The components in the structures in the drawings of the embodiments are not scaled according to the normal scale, so they do not represent the actual relative sizes of the structures in the embodiments.

[0023] Such as figure 1 As shown, a structured light three-dimensional reconstruction device based on an array camera includes a projection module 1, an array camera 2 composed of several cameras arranged in an array, and a processor 3. characteristics and the statistical properties of the random light field are the projection distance of the structured light onto the three-dimensional target object 4 to be measured, the cameras of the array camera provide several imaging channels at different p...

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Abstract

The invention discloses a structured light three-dimensional reconstruction method and device based on array cameras. The device comprises a projection module, the array cameras and a processor. The projection module is used for projecting structured light, which has light intensity random distribution characteristics and statistical properties of a random light field of which is a function of theprojection distance, so that the structured light is allowed to have a uniqueness characteristic. The projection module projects the structured light to provide many fixed and different characteristic points, so that image matching difficulty can be reduced, and correct matching reliability is improved. The array cameras comprise a plurality of cameras arranged into an array, and can provide N imaging channels (N>=2); and each camera (imaging channel) in the array cameras collects image information at different positions and from different visual angles. Since optical parameters of the arraycameras can be ensured by semiconductor processing technology, the optical parameters between each imaging channel and a light source channel do not need to be calibrated, and calibration quality of the camera system can be ensured effectively; and the device is suitable for batch production.

Description

technical field [0001] The invention relates to the technical field of optical three-dimensional measurement, in particular to a structured light three-dimensional reconstruction method and device based on an array camera. Background technique [0002] According to different measurement methods, optical three-dimensional measurement methods can be divided into active sensing and passive sensing. The main difference between the active sensing type and the passive sensing type is that it needs to project structured light for three-dimensional measurement. Since the three-dimensional characteristics of the object will modulate the space or time of the structured light field, the obtained modulation information contains the measured For the height information of the object, the height information of each point on the object can be obtained by demodulating the modulated information. Active sensing optical three-dimensional measurement mainly includes time-of-flight method, laser...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/25G06T17/00
CPCG01B11/2518G06T17/00
Inventor 李凡月马晓月
Owner HUATIAN TECH KUNSHAN ELECTRONICS
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