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Precision evaluation method and system, electronic equipment and storage medium

An accuracy evaluation and flatness technology, applied in the field of calibration, can solve the problems of large measurement space and high cost of spherical target size, and achieve the effect of reducing costs and difficulties, low cost, and easy to set up quickly.

Pending Publication Date: 2021-05-21
GUANGDONG BOZHILIN ROBOT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specifically, the actual measurement robot with the spherical target device is often used to evaluate the indication error, but the building measurement space is too large, the size of the spherical target is small, the cost is high, and it is difficult to match the wall and ceiling. etc. data object

Method used

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  • Precision evaluation method and system, electronic equipment and storage medium
  • Precision evaluation method and system, electronic equipment and storage medium
  • Precision evaluation method and system, electronic equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] figure 1 It is a flow chart of an accuracy evaluation method provided by Embodiment 1 of the present invention. This embodiment can be applied to the imaging quality of a single frame point cloud or the accuracy evaluation of the splicing effect of a multi-frame point cloud. This method can be provided by the embodiment of the present invention. Accuracy evaluation system to perform, including the following steps:

[0070] S110. Obtain point cloud data of a plurality of characteristic targets arranged on a designated area of ​​the indoor building, wherein each characteristic target has the same size and is uniformly arranged.

[0071] S120. Calculate one or more accuracy evaluation indicators according to the point cloud data, so as to be used for accuracy evaluation.

[0072] In this embodiment, the feature target may be a calibration paper, which may be pasted on a designated area of ​​the indoor building. Among them, the number and arrangement of the feature target...

Embodiment 2

[0079] image 3 It is a schematic flow chart of an accuracy evaluation method provided in Embodiment 2 of the present invention, which is used to evaluate the accuracy of the imaging quality of a single frame point cloud. The method includes:

[0080] S210. Obtain point cloud data of multiple characteristic targets arranged in a designated area of ​​the indoor building, wherein the plurality of characteristic targets arranged in the designated area of ​​the indoor building include: a corner area in a room of the indoor building , a plurality of characteristic targets arranged on the three building surfaces constituting the inner corner area.

[0081] S220. Calculate one or more of target repeatability, spatial repeatability, and spatial distance indication error according to the point cloud data, so as to be used for accuracy evaluation.

[0082] In this embodiment, when evaluating the accuracy of the imaging quality of a single-frame point cloud, the designated areas of the...

Embodiment 3

[0109] Image 6 It is a schematic flowchart of an accuracy evaluation method provided in Embodiment 3 of the present invention, which is used to evaluate the splicing effect of multi-frame point clouds. The method includes:

[0110] S310. Acquire multi-frame point cloud data of multiple characteristic targets arranged on a building surface of a room in an indoor building.

[0111] S320. Extract point cloud data of the matching feature targets at the joint.

[0112] S330. Calculate one or more of splicing flatness and splicing coincidence according to the point cloud data, so as to be used for accuracy evaluation.

[0113] In this embodiment, the specified area where the characteristic target is set on the building surface is determined according to the collection range of the point cloud data of the calibration device. Wherein, the specified area can be the overlapping area of ​​two adjacent point cloud data, and a building surface can include multiple specified areas, and ...

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Abstract

The invention discloses a precision evaluation method and system, electronic equipment and a storage medium. The precision evaluation method is used for precision evaluation of the imaging quality of a single-frame point cloud or the splicing effect of a multi-frame point cloud, and the precision evaluation method comprises the following steps: obtaining point cloud data of a plurality of feature targets arranged on a designated area of an indoor building, wherein the feature targets are consistent in size and are uniformly arranged; and calculating one or more precision evaluation indexes according to the point cloud data for precision evaluation. According to the technical scheme of the embodiment, the plurality of feature targets are arranged in the designated area of the indoor building, point cloud scanning is performed on the feature identifiers set in the designated area, and precision evaluation is performed based on the obtained point cloud data. The feature targets are low in cost, the feature targets can be conveniently and rapidly arranged in the designated area of the indoor building, and the cost and difficulty of precision evaluation are reduced.

Description

technical field [0001] This application claims priority based on Chinese patent 201911135057.1 filed in China on November 19, 2019, the disclosure of which is hereby incorporated by reference. [0002] Embodiments of the present invention relate to calibration technology, and in particular to an accuracy evaluation method, system, electronic equipment and storage medium. Background technique [0003] In the construction stage, due to the limitation of manual work efficiency, the actual measurement workers can only partially collect the data, and the collection methods are mostly based on experience and feeling. Although there are operating technical specifications, it is actually difficult to strictly implement them. In this way, regardless of the type of building data or the method of data collection, it is difficult to evaluate and guarantee the accuracy of the actual measurement results. [0004] At present, building actual measurement robots can perform three-dimensiona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/80G06T7/62G06T3/40
CPCG06T7/0002G06T7/80G06T7/62G06T3/4038G06T2207/10028
Inventor 欧清扬
Owner GUANGDONG BOZHILIN ROBOT CO LTD