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MULTISPECTRAL TELEVISION MEASUREMENTS OF PARAMETERS OF NATURAL BIOLOGICAL MEDIA

Sergey Pohrebennyk

Abstract

TV measurement monitoring and diagnosis of the state of heterogeneous biological media can be carried out on the basis of processing the array of multispectral images of the object obtained by the CCD camera at characteristic wavelengths. The biophysical and structural parameters of inhomogeneous biological media of different origin influence their spectral characteristics, in particular, the coefficient of diffuse reflection. The aim of the work is to increase the reliability of monitoring of natural biological media by improving the method of multispectral television measurement control and developing appropriate means. The method consists in measuring multispectral parameters of inhomogeneous biological media under conditions of diffuse illumination by radiation sources with known spectral characteristics, analyzing the obtained multispectral images and indirectly determining the corresponding biophysical and structural parameters of inhomogeneous biological media by means of multiple regression. We have improved the method and means of television multispectral measurements of heterogeneous biological environments. The developed tools allow TV multispectral measuring control and diagnostics biophysical and structural parameters of heterogeneous biological environments while solving applied problems of ecological monitoring. According to the results, we can conclude that the method allows measurements of multispectral television accurately measure the concentration of chlorophyll a&b and carotenoids in heterogeneous biological media such as aquatic plants or phytoplankton.

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