7 research outputs found
Gradient-based technique for image structural analysis and applications
This paper is devoted to application of gradients field characteristics in selected problems of image intellectual analysis and processing. To analyse the properties and structure of an image several approaches and models based on the use of the gradients field characteristics, are proposed. In this paper, models based on Weibull distribution are considered, an image dominant direction estimation algorithm using the parameters of scattering ellipse of gradients field components is proposed, and a similarity measure of two images with arbitrary dimensions and orientation is proposed. Some examples of applications of these models for estimation of blur and structuredness of an image, for the quality assessment of resizing and rotating algorithms, as well as for detection of a specified object on the image delivered by an unmanned aerial vehicle, are given.This work was supported by the State Committee of Science of the Ministry of Education and Science of the Republic of Armenia, under the research project No. 15T-1B274 and by Russian-Armenian University under the research project funded by the Ministry of Education and Science of the Russian Federation
Gradient-Based Technique for Image Structural Analysis and Applications
Π‘ΡΠ°ΡΡΡ ΠΏΠΎΡΠ²ΡΡΠ΅Π½Π° ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ Π³ΡΠ°Π΄ΠΈΠ΅Π½ΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠ»Ρ Π² ΠΈΠ·Π±ΡΠ°Π½Π½ΡΡ
Π·Π°Π΄Π°ΡΠ°Ρ
ΠΈΠ½ΡΠ΅Π»Π»Π΅ΠΊΡΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΠΈ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ ΠΈΠ·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΠΉ. ΠΠ»Ρ ΠΎΠΏΠΈΡΠ°Π½ΠΈΡ ΡΠ²ΠΎΠΉΡΡΠ² ΠΈ ΡΡΡΡΠΊΡΡΡΡ ΠΈΠ·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΡ ΠΏΡΠ΅Π΄Π»Π°Π³Π°ΡΡΡΡ Π½Π΅ΡΠΊΠΎΠ»ΡΠΊΠΎ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ΠΎΠ² ΠΈ ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ, ΠΎΡΠ½ΠΎΠ²Π°Π½Π½ΡΡ
Π½Π° ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠΈ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ Π³ΡΠ°Π΄ΠΈΠ΅Π½ΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠ»Ρ. Π ΡΠ°ΡΡΠ½ΠΎΡΡΠΈ, ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°ΡΡΡΡ ΠΌΠΎΠ΄Π΅Π»ΠΈ, ΠΎΡΠ½ΠΎΠ²Π°Π½Π½ΡΠ΅ Π½Π° ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ ΠΠ΅ΠΉΠ±ΡΠ»Π»Π°, ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ Π°Π»Π³ΠΎΡΠΈΡΠΌ ΠΎΡΠ΅Π½ΠΊΠΈ Π΄ΠΎΠΌΠΈΠ½ΠΈΡΡΡΡΠ΅Π³ΠΎ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΈΠ·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΡ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΡΠ»Π»ΠΈΠΏΡΠ° ΡΠ°ΡΡΠ΅ΠΈΠ²Π°Π½ΠΈΡ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ Π³ΡΠ°Π΄ΠΈΠ΅Π½ΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠ»Ρ ΠΈ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π° ΠΌΠ΅ΡΠ° ΠΏΠΎΠ΄ΠΎΠ±ΠΈΡ Π΄Π²ΡΡ
ΠΈΠ·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΠΉ Ρ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ»ΡΠ½ΡΠΌΠΈ ΡΠ°Π·ΠΌΠ΅ΡΠ°ΠΌΠΈ ΠΈ ΠΎΡΠΈΠ΅Π½ΡΠ°ΡΠΈΠ΅ΠΉ. ΠΡΠΈΠ²Π΅Π΄Π΅Π½Ρ ΠΏΡΠΈΠΌΠ΅ΡΡ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΡΡΠΈΡ
ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ Π΄Π»Ρ ΠΎΡΠ΅Π½ΠΈΠ²Π°Π½ΠΈΡ ΡΠ°Π·ΠΌΡΡΠΎΡΡΠΈ ΠΈΠ·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΡ, ΠΎΡΠ΅Π½ΠΈΠ²Π°Π½ΠΈΡ ΠΊΠ°ΡΠ΅ΡΡΠ²Π° Π°Π»Π³ΠΎΡΠΈΡΠΌΠΎΠ² ΠΈ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌ ΠΌΠ°ΡΡΡΠ°Π±ΠΈΡΠΎΠ²Π°Π½ΠΈΡ, ΠΈΠ½ΡΠ΅Π»Π»Π΅ΠΊΡΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° Π²ΠΈΠ΄Π΅ΠΎΠΏΠΎΡΠΎΠΊΠΎΠ², Π° ΡΠ°ΠΊΠΆΠ΅ Π² Π·Π°Π΄Π°ΡΠ΅ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π½ΠΎΠ³ΠΎ ΠΎΠ±ΡΠ΅ΠΊΡΠ° Π½Π° Π²ΠΈΠ΄Π΅ΠΎΠΈΠ·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΠΈ, ΠΏΠΎΡΡΠ°Π²Π»ΡΠ΅ΠΌΠΎΠΌ Π±Π΅ΡΠΏΠΈΠ»ΠΎΡΠ½ΡΠΌ Π»Π΅ΡΠ°ΡΠ΅Π»ΡΠ½ΡΠΌ Π°ΠΏΠΏΠ°ΡΠ°ΡΠΎΠΌ. The paper is devoted to application of gradient field characteristics in selected problems of image intellectual analysis and processing. To describe the properties and structure of an image several approaches and models based on the use of the gradient field characteristics, are proposed. In particular, the models based on Weibull distribution are considered, an image dominant direction estimation algorithm using the parameters of the scattering ellipse of the gradient field components is presented, and a similarity measure of two images with arbitrary dimensions and dominant orientation is proposed. Some examples of applications of these models for estimation of an image blur, for estimation of the quality of resizing algorithms and software, for intellectual analysis of a video are proposed, as well as a procedure for specified object detection on the image delivered by an unmanned aerial vehicle is described.ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΎ Π² Π ΠΎΡΡΠΈΠΉΡΠΊΠΎ-ΠΡΠΌΡΠ½ΡΠΊΠΎΠΌ (Π‘Π»Π°Π²ΡΠ½ΡΠΊΠΎΠΌ) ΡΠ½ΠΈΠ²Π΅ΡΡΠΈΡΠ΅ΡΠ΅ Π·Π° ΡΡΡΡ ΡΡΠ΅Π΄ΡΡΠ², Π²ΡΠ΄Π΅Π»Π΅Π½Π½ΡΡ
Π² ΡΠ°ΠΌΠΊΠ°Ρ
ΡΡΠ±ΡΠΈΠ΄ΠΈΠΈ ΠΠΠ Π Π€ Π½Π° ΡΠΈΠ½Π°Π½ΡΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ Π½Π°ΡΡΠ½ΠΎ-ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΠ΅Π»ΡΡΠΊΠΎΠΉ Π΄Π΅ΡΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ Π ΠΠ£.
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΎ ΠΏΡΠΈ ΡΠΈΠ½Π°Π½ΡΠΎΠ²ΠΎΠΉ ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΊΠ΅ ΠΠΎΡΡΠ΄Π°ΡΡΡΠ²Π΅Π½Π½ΠΎΠ³ΠΎ ΠΊΠΎΠΌΠΈΡΠ΅ΡΠ° ΠΏΠΎ Π½Π°ΡΠΊΠ΅ ΠΠΠ Π Π Π² ΡΠ°ΠΌΠΊΠ°Ρ
Π½Π°ΡΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΠ΅ΠΊΡΠ° β 15T-1B274