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A 3D acquisition and dimensioning method for the space domain

A collection method and 3D technology, which are applied in measurement devices, 3D modeling, and optical devices, etc., can solve the problems that the size of the target is difficult to accurately determine and cannot be applied, and achieve strong applicability, improve synthesis accuracy, and improve synthesis speed. Effect

Active Publication Date: 2021-06-15
天目爱视(北京)科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in practical applications, it is found that the size of objects in space is difficult to accurately determine, so this method cannot be applied

Method used

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  • A 3D acquisition and dimensioning method for the space domain
  • A 3D acquisition and dimensioning method for the space domain
  • A 3D acquisition and dimensioning method for the space domain

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Embodiment Construction

[0036] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0037] 3D Acquisition Calibration Process

[0038] When the target object to be collected is constantly changing, or the target object is far away, or the mark point cannot be placed on the target object, etc., you can:

[0039] Set the coordinate system xyz to collect the position and attitude of the device, and the coordinate system XYZ to calibrate the space.

[0040] Place a pose sensor on the acquisition device to measure t...

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Abstract

The embodiment of the present invention provides a collection device and method in 3D modeling, (1) using the collection device to collect multiple images of the target object; (2) the calibration device to obtain the position and location of the collection device when the collection device collects each image Attitude information; (3) The processor synthesizes the three-dimensional model of the target object according to the above-mentioned multiple images, and simultaneously obtains the three-dimensional coordinates corresponding to the image point of the same name according to the position and attitude information of the acquisition device, thereby obtaining a three-dimensional model point cloud with accurate three-dimensional coordinates; The calibration device obtains position and attitude information according to the comparison between the collected star map and the navigation star map. The absolute size calibration of the target object is realized through the method of obtaining the camera position and attitude, and the method of calculating the image point of the same name is adopted, so there is no need to place the calibration object on the target object in advance, or project the calibration point.

Description

technical field [0001] The invention relates to the technical field of shape measurement, in particular to the technical field of 3D shape measurement. Background technique [0002] Most of the 3D model construction is done on the ground or in the air. But no one has yet mentioned how 3D models in space are constructed. In fact, camera photography is currently used for satellite monitoring, meteorite tracking, and other monitoring, measurement, and identification of objects outside the atmosphere. However, all the information obtained in this way is two-dimensional information, and the three-dimensional shape of the target cannot be accurately obtained, which will affect the effect of measurement, identification and tracking. [0003] But at the same time, it is impossible to place a calibration point on the target because the target in space is far away and many targets cannot be determined in advance. Then how to accurately obtain the absolute size of the target object ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00G06T7/80G06T7/70G01B11/24G01B11/00
CPCG01B11/002G01B11/24G06T17/00G06T2207/10028G06T7/70G06T7/85
Inventor 左忠斌左达宇
Owner 天目爱视(北京)科技有限公司
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