Shipborne sandstone volume automatic computation method supporting real-time monitoring

Abstract

The invention relates to a shipborne sandstone volume automatic computation method supporting real-time monitoring. The method comprises the following steps: configuring a three-dimensional laser scanner; scanning a no-load sand ship, automatically identifying to extracting a target monomer clean ship in scene point cloud data, performing point cloud loophole auto-patching, and establishing a no-load sand ship point cloud data model; scanning a fully-loaded sand ship, automatically identifying to extract the target monomer fully-loaded ship data in the scene point cloud data; performing high-precision automatic registering on the no-load and fully-loaded monomer sand ship point cloud data; extracting the cabin region data of the sand ship point cloud data at two stages, and resolving the volume of the ship sand transport quantity through elevation difference integral. The real-time collection, efficient transmission and precise computation on the ship sandstone transport data can be realized through the method disclosed by the invention.

Description

technical field [0001] The invention relates to the technical field of geospatial information systems, in particular to an automatic calculation method for ship-borne sandstone volume supporting real-time monitoring. Background technique [0002] The existing management methods in the sand mining and sand transportation industry are still at a relatively backward technical level. There is no accurate calculation method for the volume of sand excavated by ships, and the actual volume of the ship cannot be accurately measured by manual measurement of "draft level". . With the development of information technology and the continuous deepening of sand and gravel work, how to use 3S technology to automatically, quickly and accurately obtain the volume of sand and gravel has become an urgent problem to be solved. In the past ten years, with the rapid development of 3D lidar and multi-temporal point cloud registration technology, the large-scale point cloud data that can be quickl...

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Problems solved by technology

[0003] In order to solve the above problems, the purpose of the present invention is to provide a real-time monitoring ship-borne sandstone volume automatic calculation method, the method for the floating platform to obtain point cloud data scene complex, large amount of data, using sample downsampling and The cluster analysis based on the preset seed points realizes the fast and accurate extraction of the target ship in the point cloud scene; considering the floating nature of the ship during transportation, the local feature error of the point cloud data is caused, the global feature is introduced, and the plane is used as the primitive Realize the automatic registration of point cloud data; considering the impact of the lack of ship point cloud data on the calculation accuracy of sand and gravel volume, the present invention uses the improved bilinear nearest neighbor interpolation algorithm to realize the repair of scanning data loopholes, thereby realizing the accuracy of ship transportation of sand and gravel. Real-time data collection, efficient transmission, accurate calculation

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