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Three-dimensional object volume calculation method based on point cloud slicing

A technology for volume computing and 3D objects, applied in the field of 3D object volume computing based on point cloud slices, can solve the problem of high algorithm complexity, achieve efficient modeling and reconstruction, improve computing efficiency, and reduce complexity.

Active Publication Date: 2020-03-17
中电科新型智慧城市研究院有限公司
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  • Application Information

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Problems solved by technology

[0002] The traditional calculation method of spatial object volume based on point cloud data has high algorithm complexity

Method used

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  • Three-dimensional object volume calculation method based on point cloud slicing
  • Three-dimensional object volume calculation method based on point cloud slicing
  • Three-dimensional object volume calculation method based on point cloud slicing

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Embodiment Construction

[0027] 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 combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0028] like figure 1 As shown, a method for calculating the volume of a three-dimensional object based on point cloud slices proposed by the present invention includes the following steps:

[0029] S1: point cloud slice:

[0030] Cut the point cloud data vertically, the height of the point cloud is H, and cut the point cloud data sequentially from bottom to top with h as the interval, and get n groups of horizontal poin...

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Abstract

The invention discloses a three-dimensional object volume calculation method based on point cloud slicing. The method comprises the following steps: S1, carrying out point cloud slicing; S2, determining contour boundaries of the slice point cloud data; S3, calculating a slice area; S4, calculating point cloud volume. According to the method, the point cloud data has the characteristics of high precision, high density and high restoration, necessary conditions are provided for volume calculation of the space object due to the characteristics, and volume attributes can be effectively given to the three-dimensional GIS model; according to the method, the problem of volume calculation is indirectly converted into slice area calculation in a slice mode, so that the complexity of irregular volume calculation is greatly reduced, and the calculation efficiency is improved. According to the method, a bidirectional nearest point search method is adopted to sort the point cloud slices, and the problem that the concave polygon point cloud slices are difficult to sort correctly is solved. According to the method, the morphological reconstruction of the point cloud slice is realized, and on thebasis, the method can be applied to the volume calculation of the object and can also realize the efficient modeling reconstruction of the three-dimensional object.

Description

technical field [0001] The invention relates to the field of three-dimensional object volume calculation, in particular to a three-dimensional object volume calculation method based on point cloud slices. Background technique [0002] The traditional calculation method of spatial object volume based on point cloud data has high algorithm complexity. Due to the different shapes of objects, sorting the planar point clouds obtained by slicing has always been a relatively difficult problem in this field, which is a technical problem in the prior art. [0003] In order to solve the above problems, this application proposes a 3D object volume calculation method based on point cloud slices. Contents of the invention [0004] (1) Purpose of the invention [0005] In order to solve the technical problems existing in the background technology, the present invention proposes a method for calculating the volume of a three-dimensional object based on point cloud slices. [0006] (2)...

Claims

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Application Information

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IPC IPC(8): G06T15/00
CPCG06T15/005G06T2207/10028Y02P90/30
Inventor 魏俊博肖骥童章伟徐辉赵李明
Owner 中电科新型智慧城市研究院有限公司
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