Highly efficient oscillator for an optically pumped 192-μm far-infrared laser

Liu, Chuang; Qu, Yingdong; Zhao, Wenzhi; Zhang, Ruiliang

doi:10.1007/s00340-016-6338-7

Cited by 1 publication

(1 citation statement)

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“…As a new equipment of active three-dimensional spatial information acquisition sensor, LiDAR determines the distance information between the laser source and the target by detecting light pulses or modulated pulses [5], which has the advantages of high efficiency and accuracy. And it has been widely applied in the surveying and mapping fields such as stockpiling measurement, hydrological modeling, and forest investigation [6].Due to the complexity of spatial environment, noise is inevitably introduced into the twin point cloud. Isolated points, without any connection, is the typical noise in twin point cloud, which were caused by the occlusion of non-target objects.…”

Section: Introductionmentioning

confidence: 99%

Research on Isolated Cloud Point Fast-Filtering Algorithm for Digital Twin

Guo

Yang

et al. 2022

J. Phys.: Conf. Ser.

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With the establishment of the digital twin stereoscopic warehouse concept, the importance of twin data has become increasingly prominent for digital twin system. Aiming at the problem of low accuracy in obtaining twin data from warehouse stocks, an isolated point cloud filtering algorithm combine with digital signal processing is proposed. The algorithm can retrieve the coordinate value of isolated point in original twin point cloud by constructing a twin point cloud fitting model, thereby filter out the point information of isolated region and obtain the warehousing twin data. The experiment results show that the algorithm can filter all isolated points while keeping the characteristics of original twin point cloud. The method provides accurate twin data support for digital twin stereoscopic warehouse.

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Section: Introductionmentioning

confidence: 99%