Development of a system for graphic captcha systems recognition using competing cellular automata
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 6, Issue 2
Abstract
<p>Peculiarities of the use of competing cellular automata for problems of recognition of complex captcha systems have been explored. For this purpose, the concept of competing cellular automata has been introduced and a mathematical model of their functioning and interaction has been developed. The mathematical model of competing cellular automata based on the set theory has been described to specify moving cellular automata, which shift to the neighboring states of characters and implement their transition rules in such a way. Based on this mathematical model, a recognition system for captcha images implemented in the code by means of JavaFX 2.0 technology has been developed, which allowed reaching the crossplatformness and correct functioning on different operating systems.</p><p>The libraries of cellular automata have been developed for the English language. Each symbol of the alphabet is represented in the form of a state system, which is aligned with a cellular automaton with states describing the given symbol.</p><p>We used Java programming language for development and OpenCV library for the ability to handle images which allowed us to achieve high-quality recognition results. The architecture of the developed system of recognition of complex captcha images in the form of diagrams of classes of the main blocks with detailed descriptions of each class has been considered. Computer experiments have been carried out with different sets of distorted characters used in actual captcha systems and recognition quality indices of the developed software obtained.</p><p>It has been shown that the probability of obtaining the correct result of captcha image recognition exceeds 80 % with a degree of deformation of characters up to 20 %. With a degree of deformation of characters over 30 %, there is a high probability of false character recognition.</p>The advantages of the method of text character recognition based on competing cellular automata include simplicity of rules of engagement, ability to parallelize the process of recognition easily, capability of recognition of distorted and partially overlapping characters that are the basis of modern captcha systems
Authors and Affiliations
Ivan Myroniv, Viktoriia Zhebka, Sergey Ostapov, Oleksander Val
Keywords
Related Articles
- EP ID EP528252
- DOI 10.15587/1729-4061.2018.148307
- Views 67
- Downloads 0
Determining the electromagnetic field parameters to kill flies at livestock facilities
<p>We have considered the electromagnetic method to kill the larvae of flies ‒ agricultural pests. To address the task, a problem on the distribution of electromagnetic fields in their body was solved. The solution is ba...
Analysis of possibilities for improving energy indicators of induction electric motors for propulsion complexes of autonomous floating vehicles
<p>This study proposes additional possibilities to improve, at minimal efforts, a number of technical-economic indicators of three-phase standard industrial induction motors (IM). We suggest that such engines should be u...
The effect of additive on combustion characteristics and cycle to cycle variations on si engine fueled by gasoline and bioethanol
<span lang="EN-US">Currently, the main energy source is heavily dependent on fossil energy. The current transportation technology also uses fossil-derived energy sources to make vehicle engines are ignited. Also, the ele...
Modeling of customeroriented construction project management using the gender logic systems
<p>The specificity of the feminine and masculine contexts of managing the customer needs in the construction project is highlighted. It is substantiated that the customer-oriented context of the gender logic systems of c...
A study of the effect of electrostatic processing on performance characteristics of axle oil
<p>The effect<strong> </strong>of electrostatic processing on performance characteristics of axle oil is investigated. Axle oil is used for wetting motor-axial bearings (MAB) of locomotives. There is a pressing and urgen...