Single-lens three-dimensional image reconstruction method based on laser radar point cloud data assistance

A point cloud data and lidar technology, applied in the field of single-lens 3D image reconstruction assisted by lidar point cloud data, can solve the problem of lack of texture information in lidar point cloud data, and achieve high-precision 3D point cloud model reconstruction , Improve the registration accuracy and reduce the effect of distortion

Pending Publication Date: 2020-12-18
HUNAN SHENGDING TECH DEV CO LTD
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However, since the lidar point cloud data lacks texture information, it is necessary to ...

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  • Single-lens three-dimensional image reconstruction method based on laser radar point cloud data assistance
  • Single-lens three-dimensional image reconstruction method based on laser radar point cloud data assistance
  • Single-lens three-dimensional image reconstruction method based on laser radar point cloud data assistance

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[0034] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0035] The technical solutions provided by the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0036] Such as figure 1 As shown, an embodiment of the present invention provides a single-lens three-dimensional image reconstruction method based on laser radar point cloud data assistance, and ...

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Abstract

The invention discloses a single-lens three-dimensional image reconstruction method based on laser radar point cloud data assistance. The method comprises the steps: acquiring multiple visible light images and laser radar point cloud data of a scanned object; based on the laser radar point cloud data, adopting an incremental motion recovery structure algorithm to carry out three-dimensional reconstruction on the visible light image so as to acquire an image point cloud; and registering the image point cloud and the laser radar point cloud data by adopting a mode of combining rigid transformation and non-rigid transformation to obtain a three-dimensional point cloud model of a scanned object. According to the method, geometric correction is carried out by adding virtual ground control points in the three-dimensional reconstruction process of the image in a mode of searching homonymous points of the image and the laser radar point cloud, so that the distortion condition in the three-dimensional reconstruction process of the image can be reduced; and image point cloud and laser radar point cloud data are registered in a rigid transformation and non-rigid transformation combined mode,the registration precision can be improved, and high-precision three-dimensional point cloud model reconstruction is achieved.

Description

technical field [0001] The invention relates to the technical field of image data fusion, in particular to a single-lens three-dimensional image reconstruction method based on lidar point cloud data assistance. Background technique [0002] Image information has rich texture information, high resolution and edge precision, and flexible and convenient acquisition methods. However, in the modeling process based on image 3D reconstruction, a large number of image control points are required for subsequent data processing, and the workload is heavy. Moreover, due to the limitation of natural conditions, there are many areas where field measurement and control is difficult and a large number of areas without effective image control points, and effective ground control points cannot be obtained during the measurement process. Therefore, the accuracy of 3D reconstruction data based on image information is relatively low. Big difference. Lidar can acquire 3D point cloud data of the...

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Application Information

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IPC IPC(8): G06T15/00G06T7/33
CPCG06T15/00G06T2207/10012G06T2207/10044G06T7/33
Inventor 王怀採李修庆李庆红赵健康徐静冉
Owner HUNAN SHENGDING TECH DEV CO LTD
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