Method for measuring object through multiple cameras and device thereof

A multi-camera, object technology, applied in the field of image processing, can solve the problem of reducing the accuracy of object size measurement results, etc.

Active Publication Date: 2016-08-03
HANS LASER TECH IND GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide a method and device for measuring objects with multiple cameras to solve the problem of reducing the accuracy of object size measurement results

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  • Method for measuring object through multiple cameras and device thereof
  • Method for measuring object through multiple cameras and device thereof
  • Method for measuring object through multiple cameras and device thereof

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Embodiment Construction

[0047] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0048] figure 1 It is an application environment diagram of a system for measuring objects with multiple cameras in one embodiment. The system for measuring objects with multiple cameras includes a terminal 110 and a plurality of cameras (camera 131, camera 132, camera 133, camera 134, camera 134, camera 135, camera 136, camera 137 and camera 138), wherein the plurality of cameras are all connected to the terminal 110 , a plurality of cameras can be controlled through the terminal 110 , which also includes a measured object 120 .

[0049] Such as figure 2 As shown, in one embodiment, a method f...

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Abstract

The invention relates to a method for measuring an object through multiple cameras and a device thereof. The method comprises the steps that images of different areas of a calibration board photographed by multiple cameras respectively are received; the mapping relation between the pixel coordinate system of each camera and a calibration coordinate system is acquired according to the images of different areas of the calibration board; the images of different areas of an object photographed by the multiple cameras respectively are received, and the pixel coordinates of the images of different areas of the object are acquired; the pixel coordinates of the images of different areas of the object are mapped to the calibration coordinate system according to the mapping relation; and the measurement result of the object is obtained according to the coordinates of the images of different areas of the object in the calibration coordinate system. Therefore, the object or the cameras does / do not need to be rotated or moved so that mechanical error caused by rotation or movement of the cameras can be avoided, and accuracy of the object measurement result can be enhanced.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and a device for measuring an object with multiple cameras. Background technique [0002] Due to the limitation of the camera's field of view and the shooting environment, it is difficult for a single camera to measure and image the entire larger-sized object. The traditional measurement method is to measure and image different areas of large-scale objects by rotating and moving the platform on which the object is placed, or by moving the camera. When measuring the size of the object, these methods need to calculate complex pixel coordinate systems and platform coordinate systems. And coordinate conversion between calibration coordinate systems. In addition, there will be some mechanical errors in the movement of the platform or camera, which will reduce the accuracy of the final measurement results. Contents of the invention [0003] Based on this, it is ne...

Claims

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Application Information

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IPC IPC(8): G01B11/00
CPCG01B11/002
Inventor 文茜舒远李玉廷王光能闫静高云峰
Owner HANS LASER TECH IND GRP CO LTD
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