• V. A. Gorokhovatsky Kharkov Educational and Scientific Institute of Public Higher Education “University of Banking”, Ukraine
  • Y. P. Putyatin National University of Radio Electronics Kharkov, Ukraine
  • V. S. Stolyarov Kharkiv National University of Radio Electronics, Ukraine



Computer vision, structural image recognition, set of structural features, SURF descriptors, ORB descriptors, relevance of descriptions, vector of characteristics of classes, noise immunity, recognition performance.


Сontext. Increasing of productivity and extension of the functionality of modern computer vision systems require more effective methods for visual information processing. Main goals of structural recognition are related with the improvement of information classification technology in the space of features in a form of image key point descriptors, as well as the necessity of recognition performance estimation for application datasets. Particular attention is related to the investigation of data structure for the set of descriptors that directly affects the functioning of the recognition system.

Objective. Investigation of cluster representation for the set of structural features of application dataset was performed as well as the evaluation of cluster model performance in methods of visual objects structural recognition to provide compact representation of data was proposed.

Method. Methods of recognition based on transformation of structural features space by clustering and usage of cluster dataset image features were proposed. First method uses the integral representation of etalon images descriptions, the second one is based on the value of statistical distribution vector in matrix space cluster model during building the association between structural element and class. Result of research is creation of recognition methods and data models during construction of relevance vectors and features of classes in the transformed feature space.

Results. Using cluster transformation of the space of structural features allows to reduce the amount of computational costs, and improves recognition performance preserving desired efficiency in a hundred of times. Comparison between SURF and ORB methods for the formation of structural features was performed, processing time by ORB has appeared to be 60 times less. On the other hand, the set of SURF descriptors closely reflects the shape of visual objects. Modeling and experimental investigations of proposed recognition method for application dataset was performed. Effectiveness of the method in terms of efficiency was confirmed, comparative estimations of recognition quality depending on the level of additive noise for the analyzed treatment options were obtained.

Conclusions. Paper proposed the systematization and obtaining of perspective properties of recognition systems in the space of structural features of images. Classification methods based on cluster descriptions provide a sufficient level of image discrimination and high noise immunity. Scientific novelty of the research consists of synthesis of a method of structural image recognition based on the use of cluster processing and the construction of classification decisions in space of etalon cluster. Conversion to the vector-cluster presentation allows to significantly increase the speed of recognition by processing simplification. Practical value of paper is the obtaining of application program models for the modifications of structural image recognition method with the confirmation of the effectiveness and noise immunity of the proposed approach in a specific image dataset.

Author Biographies

V. A. Gorokhovatsky, Kharkov Educational and Scientific Institute of Public Higher Education “University of Banking”

Dr. Sc., Professor, Department of Information Technology and Higher Mathematics

Y. P. Putyatin, National University of Radio Electronics Kharkov

Dr. Sc., Professor, Head of Department of Computer Science

V. S. Stolyarov, Kharkiv National University of Radio Electronics



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How to Cite

Gorokhovatsky, V. A., Putyatin, Y. P., & Stolyarov, V. S. (2017). RESEARCH OF EFFECTIVENESS OF STRUCTURAL IMAGE CLASSIFICATION METHODS USING CLUSTER DATA MODEL. Radio Electronics, Computer Science, Control, (3), 78–85.



Neuroinformatics and intelligent systems

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