Airborne laser point cloud data and vehicle laser point cloud data fusion method

A point cloud data, vehicle-mounted laser technology, applied in the field of image processing, to achieve the effect of precise correction, improved accuracy and simple operation

CN106056563AInactive Publication Date: 2016-10-26CAPITAL NORMAL UNIVERSITY +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2016-10-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an airborne laser point cloud data and vehicle laser point cloud data fusion method, comprising: employing airborne data as reference data to extract homonymy points or same characteristic lines of vehicle laser point cloud data; matching the vehicle laser point cloud data and airborne laser point cloud data in a vehicle laser point cloud data coordinate system; performing thinning treatment on the vehicle laser point cloud data in the coordinate system, and removing superfluous vehicle laser point cloud data; classifying the vehicle laser point cloud data in the coordinate system according to ground object types, and obtaining vehicle laser point cloud data of different types; and deleting the overlapped section between the airborne laser point cloud data and the vehicle laser point cloud data under the same category in the coordinate system, maintaining the point cloud data with relatively high data density in the overlapped section under the same category, and obtaining fused point cloud data. The scheme overcomes the difference of resolution ratio and data size between two types of data, and can well fuse the two types of data.
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