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Rapid 3D measuring and comparing method

A measurement method and 3D technology, applied in the field of measurement, can solve problems such as inability to obtain comparisons, and achieve the effects of improving picture quality, improving synthesis effect, and improving accuracy

Active Publication Date: 2019-01-25
天目爱视(北京)科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing technology, it is difficult to quickly complete the measurement while ensuring the accuracy, and it is impossible to quickly and accurately complete the comparison.

Method used

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  • Rapid 3D measuring and comparing method
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  • Rapid 3D measuring and comparing method

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Embodiment Construction

[0071] 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.

[0072] An embodiment of the present invention provides a quick identification method, including the following steps, such as figure 1 Shown:

[0073] Step S101, arranging a camera group consisting of multiple cameras according to preset rules to acquire multiple image information of the first target at different angles;

[0074] Specifically, a camera group composed of multiple cameras is arranged according to preset rules. In or...

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Abstract

The invention provides a 3D size measuring method. The method comprises the following steps of acquiring information of multiple images of a first target at different angles; building a first point cloud 3D model of the first target according to the information of the multiple images; and comparing the first point cloud 3D model with point cloud 3D model samples bound with identity information andpre-stored in a first sample database one by one, finding the point cloud 3D model sample matched with the first point cloud 3D model, and measuring the geometric difference between the first point cloud 3D model and the point cloud 3D model sample, wherein the three images in the multiple images at least have parts representing the same region of a target object, and a point cloud is a sparse point cloud or a dense point cloud. It is proposed that the sparse or dense point cloud of the target object and the sample are used for performing measurement / comparison, so that the measurement / comparison speed is increased. It is creatively proposed that the picture quality influences the 3D measurement / comparison precision and speed. By means of optimizing a relation between adjacent shot pictures, the obtained picture is guaranteed to be high in synthesis precision.

Description

technical field [0001] The invention relates to the technical field of measurement, in particular to a fast 3D measurement and comparison method and system based on 3D data. Background technique [0002] At present, when performing 3D measurement of the target, the point cloud data of the target is usually obtained, and the calibration size is used for calculation, but in some cases not only the 3D size of the target is required, but also the measurement of each area of ​​the target and the standard The size gap between objects. Moreover, this situation is different from the usual 3D size measurement. It is usually used in occasions that require high measurement accuracy. However, if all the 3D models of the target are synthesized before measurement, the measurement speed will be greatly affected. [0003] There are also some existing methods for measuring the geometric size difference between the target and the standard target in order to increase the speed, including the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01B11/25G06T17/00G06K9/00G06K9/62
CPCG01B11/245G06V20/64G06V40/10
Inventor 左忠斌左达宇
Owner 天目爱视(北京)科技有限公司
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