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Generalized radar/radiometry imaging problems

Prudyus I., Voloshynovskiy S., Synyavskyy A., Holotyak T., Lazko L.

Journal of Telecommunications and Information Technology

2001

nr 4

15-20

In the paper the results of spatio-temporal imaging simulation based on radar, synthetic aperture radar (SAR) and radiometry systems are presented. The analytical relationship between object scattering/emitting and the formed image is given and the general approach for the description of imaging system by means of Frendholm equation solution is developed. The potential limit of image resolution based on Rao-Cramer inequality is estimated.

Nonlinear adaptive-parametric image restoration

Hrytskiv Z., Voloshynovskiy S.

Machine Graphics and Vision

1998

Vol. 7, No. 1/2

445-454

In this paper the problem of restoration of defocused images corrupted by mixed noise is considered. To enhance the noise immunity of restoration algorithm based on iterative method with adaptive regularization and parametric constrains on the solution the prefiltering is proposed to be carried out. To avoid double images blurring on the prefiltering stage the simultaneous suppresion of gaussian and impulse noises is performed according to the local image structure using adaptive nonlinear filter.