Modeling method, system and device based on oblique photography and storage medium

A technology of oblique photography and modeling method, which is applied in 3D modeling, radio wave measurement system, photogrammetry/video measurement and other directions. Degree and visualization effect, the problem of ground object recognition effect, side structure or point cloud slope cannot be colored, etc.
CN111415409APending Publication Date: 2020-07-14BEIJIG YUPONT ELECTRIC POWER TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJIG YUPONT ELECTRIC POWER TECH
Publication Date
2020-07-14

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Abstract

The embodiment of the invention discloses a modeling method, system and device based on oblique photography and a storage medium. The modeling method based on oblique photography comprises the steps of: obtaining laser radar point cloud data and oblique image data of a preset flight area, wherein the laser radar point cloud data comprise first ground object data, and the oblique image data comprise second ground object data; constructing a map-free three-dimensional model by using the laser radar point cloud data from which the first surface feature data is removed; extracting second ground object data in the inclined image data, and constructing a live-action three-dimensional model by using the second ground object data; and fusing the map-free three-dimensional model and the live-actionthree-dimensional model to construct a target three-dimensional model. According to the embodiment of the invention, high-precision modeling in combination with laser radar and oblique photography technologies is realized.
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Description

technical field

[0001] Embodiments of the present invention relate to lidar technology, and in particular to a modeling method, system, device and storage medium based on oblique photography. Background technique

[0002] LiDAR (Light Laser Detection and Ranging) is the abbreviation of laser detection and ranging system. Radar using lasers as radiation sources. Lidar is the product of the combination of laser technology and radar technology. It is composed of transmitter, antenna, receiver, tracking frame and information processing. Lidar adopts two working modes of pulse or continuous wave, and the detection methods are divided into direct detection and heterodyne detection.

[0003] At present, the point cloud coloring of the laser radar system is commonly used to color the front camera. By calculating the actual GPS coordinate position of each pixel in each photo, and then comparing it with the GPS coordinate position of the resolved laser radar point cloud, Assign th...

Claims

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