Method and device for determining characteristic parameters of selected structure of pipeline
A technology of structural characteristic parameters and determination methods, which is applied to the details of 3D image data, image data processing, instruments, etc., can solve the problems of cumbersome operation and complex characteristic parameters, and achieve the effect of high calculation efficiency and high accuracy
Active Publication Date: 2021-08-06
WUHAN EASY SIGHT TECH
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[0004] The present invention provides a method and device for determining the characteristic parameters of the selected structure of the pipeline, which are used to solve the defects of the related art that it is cumbersome to operate the designated area in the three-dimensional image of the pipeline, and the calculation of the characteristic parameters of the selected structure is very complicated. Can quickly select the specified structure in the three-dimensional drawing of the pipeline, and the calculation of the characteristic parameters of the specified structure is simple
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[0063] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0064] It should be understood that reference throughout this specification to "an embodiment" or "one embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Thus, appearances of "in an embodiment" or "in one embodiment" throughout the specification do not necessarily refer to the sam...
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The invention provides a method and a device for determining characteristic parameters of a selected structure of a pipeline. The method comprises the following steps: acquiring a point cloud data sequence of a pipeline section of a target pipeline; establishing a three-dimensional point cloud model and a two-dimensional plane expansion view of the target pipeline according to the point cloud data sequence, and establishing a mapping relation between pixel points of the two-dimensional plane expansion view and scanning points in the three-dimensional point cloud model; acquiring pixel point information of a polygonal region selected in the two-dimensional plane expansion graph; obtaining scanning point information of a selected three-dimensional structure corresponding to the polygonal region in the three-dimensional point cloud model according to the pixel point information of the polygonal region and the mapping relation; and obtaining characteristic parameters of the selected three-dimensional structure according to the scanning point information of the selected three-dimensional structure. According to the invention, the calculation efficiency of the characteristic parameters of the selected pipeline structure is high, the accuracy is high, and the selection mode of the selected pipeline structure is simple.
Description
technical field [0001] The invention relates to the technical field of pipeline detection, in particular to a method and device for determining selected structural characteristic parameters of pipelines. Background technique [0002] During pipeline inspection, it is usually necessary to conduct three-dimensional modeling of the pipeline, and then analyze the specified structure (such as a defect structure) in the pipeline three-dimensional model. [0003] In related technologies, it is cumbersome to operate the specified structure in the 3D view of the pipeline, because the 3D view of the pipeline only shows a part in one perspective, if the selected specified structure part includes part of the structure in the current view and parts in other views The structure needs to be selected while adjusting the viewing angle. In addition, since the pipe is curved, the lines of the selected structure on the pipe 3D map need to be curved with the surface of the 3D pipe, and the calc...
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Login to View More IPC IPC(8): G06T17/20
CPCG06T17/20G06T2200/04
Inventor 冯成会王翔王高峰吴海锋孙存于建辉
Owner WUHAN EASY SIGHT TECH