Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2014, Vol. 11, No. 4, pp. 257-264
Research of fine structure of hyperspectral space information on technosphere objects and natural environment
A.G. Tsybanov
Physical Problems in Diagnostics and Safety of Technosphere, Academy of Natural Sciences, Moscow 123056, Russia
The research of hyperspectral characteristics of technosphere and natural environment objects (reservoirs, roofs, forest, soil, roads and other) is carried out. Data of Hyperion space hyperspectrometer were used. The purpose of research was to determine the possibilities of space monitoring and diagnostics of such objects. It is noticed that the characteristic peculiarity of technospere objects is their smaller sizes as compared to natural objects. The use of high and ultrahigh spatial and spectral resolution space systems is required for the observation. Such sensors are the modern hyperspectrometers of aviation and space deployment. For the research of fine hyperspectral image structures, the techniques of smoothing and spectral signature superposition were used. The application of the smoothing and superposition procedures to the hyperspectral images allowed to obtain an expressed pattern distinction between technosphere and natural objects in visual and near infrared spectral bands. It was discovered that the technosphere objects had hyperspectral signatures with evident maximums in contrast to those of natural objects with minimums. The distinction between objects within a group (natural or technosphere) is characterized by a clear difference in absolute values of spectral brightness. This property of the spectra enables to unambiguously distinguish the technosphere and natural objects in visual and near infrared bands.
Keywords: hyperspectrometer, technospere, natural objects, space diagnostics, monitoring, method, smothing, robust, exponential
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