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20 September 1995 Remote cloud velocity measurements by image data processing
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Proceedings Volume 2506, Air Pollution and Visibility Measurements; (1995)
Event: European Symposium on Optics for Environmental and Public Safety, 1995, Munich, Germany
Velocity measurements of drifting atmospheric clouds have been regularly carried out by collecting imaged sites above the ground and statistical data processing of successive images. Time variations for in-plane moving with variable pre-set velocities dots, related to different parts of the imaged area, are obtained after the in-line selection of image pixels from non- collinear directions in the image plane. The temporary instability dependencies are constructed afterwards and their minima are located to determine the cloud main drift velocity direction first. New in-line data selection in the image plane, as close as possible to the already obtained velocity direction, provides the calculation of time variations for getting the velocity module for various sectors in the imaged area, possibly drifting with different velocities.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Vladimir Alexandrov Mitev and Grigor I. Sokolinov "Remote cloud velocity measurements by image data processing", Proc. SPIE 2506, Air Pollution and Visibility Measurements, (20 September 1995);

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