Kovalev V. Improving the efficiency of optoelectronic guidance methods by combined analysis of frame elements

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0421U102726

Applicant for

Specialization

  • 05.12.17 - Радіотехнічні та телевізійні системи

06-05-2021

Specialized Academic Board

Д 35.052.10

Lviv Polytechnic National University

Essay

The dissertation research is devoted to the development of optical-electronic guidance methods in order to increase the efficiency of their functioning. In the dissertation work, a quantitative indicator of the effectiveness of optical-electronic guidance systems was developed, taking into account the natural factors of influence, the maneuverable characteristics of the carrier of the system, the maneuverable characteristics of targets, interference from the means of optical-electronic suppression, which makes it possible to evaluate the effectiveness of the optical-electronic guidance systems without conducting experiments. In this work, the method for calculating the optical flow of Lucas-Kanade was improved by introducing into the mathematical model the data obtained from the sensors of the inertial and high-altitude-velocity systems, which reduced the number of required layers in the method scale pyramid without increasing the processing time. A method of multichannel massive ranging based on the analysis of the optical flow has been developed, which provides the construction of a map of the relative and absolute depth of the image in uncalibrated horizontal stereopairs. The image preprocessing method was also improved by introducing adaptive filtering of high-frequency image noise. An algorithm and applied software have been developed that implement an improved method for calculating the optical flow and a method of multichannel ranging for operation as part of optoelectronic guidance systems. A set of design documentation has been developed and a prototype of an optical-electronic guidance system has been manufactured, which implements the methods for calculating the optical flow and measuring the range obtained as a result of the dissertation research.

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