7. Computer methods for processing signals and images

V.A. Arbuzov, N.A. Dvornikov, V.G. Nechaev, O.N. Novoselova
Novosibirsk state technical university, Russia, Institute of thermophysics of S.S.Kutateladze of the Siberian Branch of the Russian Academy of Science, Russia

Polychromatic hilbert-diagnostics of evolution of the ring whirlwinds arising at diffraction of front of pressure upon the aperture

Formation and distribution evolution gas-dynamic the toroidal vortical structures in pairs arising and extending in opposite directions at various values of pressure in the gas chamber is considered. In work the color gilbert-filtration of not coherent optical field revolted with investigated vortical structure was applied to registration of whirlwinds inside and outside of the chamber. The color gilbert-visual analyzer phase objects in real time on the basis of the shadow device with the polychromatic slot-hole light source coordinated with the phase filter, and the digital camera operated by means of the computer was used.
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