Image restoration by conventional deconvolution method in basis of RTF transformation
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2014, Vol 0, Issue 56
Abstract
Introduction. Conventional deconvolution method for image restoration is considered. It is need to calculate the noise energy on the base of priori information on the sources of distortion (degradation), to estimate the character and parameters of the distorting impulse response of reflection system. The problem statement. It should be moved from natural coordinates to the discrete orthogonal transformation region using this method to avoid overly cumbersome calculations. The RTF transformation method for restoration is proposed in this paper. It differs from the Fourier transform and it is the "tracing" of difference methods. Conclusions. Examples of reference images restoration with different levels of additive noise and different degradation impulse responses (caused not point character of the reflection system impulse response) are shown. Impulse responses are not selected "blindly" and assumed to be known.
Authors and Affiliations
V. Shebesta, N. Ivaniuk, K. Solokhnenko, A. Rybin
Keywords
Related Articles
- EP ID EP308953
- DOI 10.20535/RADAP.2014.56.25-33
- Views 87
- Downloads 0
Application of correlation matrix for solving the task of authentification of person after the dinamically entered signature
The work of method with use of correlation matrix for solving the task of authentification of person after the dinamically entered signature is illustrated.
Optimization of signals detection systems on the background clutter
Introduction. The article deals with the optimization of a moving target signals detection systems against clutter on probabilistic criteria. The object of research is the detection system implementing coherent rejection...
Homomorphic Two-Stage Image Sequence Filtering Algorithm in the Presence of Correlated Speckle Noise
Introduction. An images received from synthetic-aperture radar and ultrasonic medical coherent systems are distorted by speckle noise which can be spatially correlated. Sequence frame processing is applied due to poor qu...
The information-control systems efficiency assessment
The methodology for the information-control systems efficiency assessment is considered in this article. It is based on the information - probabilistic approach and the macroanalysis principles. The basic relation betwee...
Reduction of the peak factor in channels with OFDM using median filtering and block coding
In given ar- ticle the algorithm of median filtering and algorithm of block coding to reduction of the peakfactor in systems which use OFDM signals.