Publishing House SB RAS:

Publishing House SB RAS:

Address of the Publishing House SB RAS:
Morskoy pr. 2, 630090 Novosibirsk, Russia



Advanced Search

Avtometriya

2007 year, number 1

1.
Spatial Spectra Non-Quadratic Regularization Methodwith False Component Filtering

V. N. Shevchenko, N. M. Ivanov, and Yu. A. Zvezdina
Federal State Unitary Enterprise
Pages: 1-6

Abstract >>
A non-quadratic regularization algorithm modification is proposed. It ensures identifying and filtering angular spectrum false components by choosing regularizing functional parameters. The algorithm efficiency was proved by modeling while solving the problem of multibeam wavefield division using one input data realization.



2.
Sequencing Points of the Spatial Image of a Group Point Object Based on Amplitude-Phase Representation

D. G. Khafizov
Mari State Technical University, Ioshkar-Ola, Russia, E-mail: RTS@MARSTU.MARI.RU
Pages: 7-17

Abstract >>
Amplitude-phase representation of spatial group point objects given as quaternion signals is considered. The problem of estimating the rotation parameters and sequencing the point marks incorporated in a group object is solved. The obtained results allow using the matched filtering algorithm to solve the problem of recognizing spatial group point objects with unknown parameters of rotation and numbering of points in the object.



3.
Analysis, Filtering, and Decomposition of Electron Microscope Images Based on Orthogonal Transformations

B. N. Grudin, E. G. Kislenok, V. S. Plotnikov, and V. K. Fishchenko
Far East State University, Vladivostok, Russia, E-mail: grudin@lemoi.phys.dvgu.ru
Pages: 18-27

Abstract >>
Methods for estimating the integral characteristics of electron microscope image periodograms, based on Hartley transform, Q-transform, and cosine transform, are proposed. It is shown that the cosine transform is more appropriate for filtering and improvement of psychophysical image perception on its basis. Various approaches to implementing matched filtering via cosine transform are considered. A procedure of electron microscope image decomposition with the use of various orthogonal transforms and filters based on Fourier patterns of Gauss and Morle wavelets is proposed and studied. It is shown that electron microscope image structure analysis using scalograms of orthogonal image transforms is promising



4.
Histogram Clustering Validation for Multispectral Image

V. S. Sidorova
Institute of Computational Mathematics and Mathematical Geophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia, E-mail: svs@ooi.sscc.ru
Pages: 28-32

Abstract >>
A measure of assessment of uncontrolled space image classification by a clustering technique based on a multivariate histogram is proposed. The measure is used to choose the best vector partitions corresponding to different detail of data representation. It is experimentally shown that well-separated unimodal clusters of the partitions correspond to representative information classes of a sensed land cover.



5.
A Modified Algorithm for Adaptive Filtering Point Object Images

T. Kurmanbek uulu
Institute of Automation and Electrometry, Siberian Branch of the Russian Academy of Sciences,Novosibirsk, Russia, E-mail: ilim-elim@mail.ru
Pages: 33-36

Abstract >>
A four-channel point object image filtering algorithm obtained by modifying an adaptive filtering algorithm is proposed. It is shown that the quality of four-channel filtering deteriorates only slightly compared with the adaptive filtering whereas the computational complexity is reduced several times.



6.
Evaluation of Impulse Signal Reconstruction Errors in Multichannel Recording

Yu. V. Bondarenko
Institute of Automation and Electrometry, Siberian Branch of the Russian Academy of Sciences,Novosibirsk, Russia, E-mail: bjuv@iae.nsk.su
Pages: 37-42

Abstract >>
Results of computer simulation are presented. They allow evaluating the reconstruction errors of an impulse signal at the multichannel recorder output versus the accuracy of determining the phase shifts between channels and their gain.



7.
On the Nonparametric Approaches to Applied Spectral Analysis

V. G. Alekseev
Obukhov Institute of Aerophysics of the Russian Academy of Sciences,Zvenigorod, Moscow oblast, Russia
Pages: 43-49

Abstract >>
The nonparametric approaches to applied spectral analysis of generally stationary discrete-time stochastic processes are reviewed. The classical periodogram estimator of spectral density f(w) of the analyzed stochastic process and the Welch-type estimator are considered in detail. Practical advice on choosing the parameters of both the statistical estimators is presented.



8.
Identifying an Object Model Defined as a Fuzzy Relational Equation

A. V. Eliseev
Rostov Military Institute of Missile Troops, Rostov-on-Don, Russia,
E-mail: eliseev_av@ctsnet.ru
Pages: 50-58

Abstract >>
Synthesis of the structure of an adaptive fuzzy controller for multistructure objects is considered. An algorithm for identifying the fuzzy multistructure model defined as a fuzzy relational equation is described



9.
Experimental Study of Laser Recording and Heterodyne Detecting of Microstructures in Volume Media

A. Yu. Belikov, N. N. V’yukhina, V. N. Zatolokin, P. E. Tverdokhleb, A. V. Trubetskoi, I. Sh. Steinberg, and Yu. A. Shchepetkin
Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, E-mail: peter@iae.nsk.su
Pages: 59-69

Abstract >>
Results of an experimental study of a two-beam laser method of recording and heterodyne detection of elementary microstructures (microgratings) in



10.
Apochromatic Correction of the Rigid GRIN Endoscope

E. G. Ezhov1 and S. A. Stepanov2
1Samara State Aerospace University, Samara, Russia, E-mail: drozd.k@gmail.com
2Penza State University of Architecture and Civil Engineering, Penza, Russia, E-mail: grey@gasa.penza.com.ru
Pages: 70-75

Abstract >>
A technique for apochromatic correction of rigid endoscope



11.
Gradient Method for Calculating the Eikonal for Focusing to a Given Region

A. A. Belousov, L. L. Doskolovich, and S. I. Kharitonov
Korolev Samara State Aerospace University, Samara,Institute of Image Processing Systems, RAS, Samara, E-mail: leonid@smr.ru
Pages: 76-82

Abstract >>
An iterative method for designing a field eikonal that creates conditions for light beam focusing to a given 2D region is considered. The eikonal function that ensures focusing from a circular to rectangular region is calculated. Application of the method to design of refractive optical elements is considered. The refractive element that focuses a plane beam with a circular section to a rectangle is designed.



12.
White-Light Interferometer with Partial Correlogram Scanning

E. V. Sysoev
Technological Design Institute of Scientific Instrument Engineering, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, E-mail: evsml@mail.ru
Pages: 83-89

Abstract >>
A method for measurement of a surface microprofile with a nanometer resolution is described. The method is based on partial scanning of correlograms in a Linnik white-light interferometer. Experimental results on measurements of thin film thickness are presented. It is shown that a depth resolution of better than 1 nm can be obtained by correlogram scanning in the range from 1 to 2 periods.



13.
Control System for Complementary Two-Coordinate Scanning Devices

V. P. Bessmeltsev and N. V. Goloshevsky
Institute of Automation and Electrometry, Siberian Branch of the Russian Academy of Sciences, E-mail: nickolayg@iae.nsk.su
Pages: 90-98

Abstract >>
A complementary scanning device control system was developed. In the system, the laser beam is displaced by deflectors inside the writing zone confined by the focusing objective field. The deflectors are placed in a scanning head that, in its turn, can move over the entire writing field. Based on the proposed control system model it is shown that the chosen system implementation allows precision image writing on formats that are much greater than the writing field of the focusing objective; the writing speed is primarily determined by the scanning head deflectors. Results of simulating the system behavior and experimental results are presented.