7 research outputs found

    Π€ΠΎΡ€ΠΌΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ комплСксного изобраТСния Π·Π΅ΠΌΠ½ΠΎΠΉ повСрхности Π½Π° основС кластСризации пиксСлСй Π»ΠΎΠΊΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… снимков Π² ΠΌΠ½ΠΎΠ³ΠΎΠΏΠΎΠ·ΠΈΡ†ΠΈΠΎΠ½Π½ΠΎΠΉ Π±ΠΎΡ€Ρ‚ΠΎΠ²ΠΎΠΉ систСмС

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    ΠŸΡ€Π΅Π΄Π»Π°Π³Π°Π΅Ρ‚ΡΡ способ комплСксирования разноракурсных ΠΈΠ·ΠΎΠ±Ρ€Π°ΠΆΠ΅Π½ΠΈΠΉ с ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠ° ΠΊΠ²Π°Π·ΠΈΠΎΠΏΡ‚ΠΈΠΌΠ°Π»ΡŒΠ½ΠΎΠΉ кластСризации пиксСлСй ΠΊ исходным снимкам Π·Π΅ΠΌΠ½ΠΎΠΉ повСрхности. Π˜ΡΡ…ΠΎΠ΄Π½Ρ‹Π΅ разноракурсныС изобраТСния, сформированныС Π±ΠΎΡ€Ρ‚ΠΎΠ²ΠΎΠΉ Π°ΠΏΠΏΠ°Ρ€Π°Ρ‚ΡƒΡ€ΠΎΠΉ ΠΌΠ½ΠΎΠ³ΠΎΠΏΠΎΠ·ΠΈΡ†ΠΈΠΎΠ½Π½Ρ‹Ρ… Π»ΠΎΠΊΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… систСм, ΡΠΎΡΡ‚Ρ‹ΠΊΠΎΠ²Ρ‹Π²Π°ΡŽΡ‚ΡΡ Π² Π΅Π΄ΠΈΠ½Ρ‹ΠΉ составной снимок ΠΈ ΠΏΡ€ΠΈ ΠΏΠΎΠΌΠΎΡ‰ΠΈ высокоскоростного Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠ° ΠΊΠ²Π°Π·ΠΈΠΎΠΏΡ‚ΠΈΠΌΠ°Π»ΡŒΠ½ΠΎΠΉ кластСризации пиксСлСй Ρ€Π΅Π΄ΡƒΡ†ΠΈΡ€ΡƒΡŽΡ‚ΡΡ Π΄ΠΎ Π½Π΅ΡΠΊΠΎΠ»ΡŒΠΊΠΈΡ… Ρ†Π²Π΅Ρ‚ΠΎΠ² с сохранСниСм Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€Π½Ρ‹Ρ… Π³Ρ€Π°Π½ΠΈΡ†. ΠžΡΠΎΠ±Π΅Π½Π½ΠΎΡΡ‚ΡŒ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠ° ΠΊΠ²Π°Π·ΠΈΠΎΠΏΡ‚ΠΈΠΌΠ°Π»ΡŒΠ½ΠΎΠΉ кластСризации Π·Π°ΠΊΠ»ΡŽΡ‡Π°Π΅Ρ‚ΡΡ Π² Π³Π΅Π½Π΅Ρ€Π°Ρ†ΠΈΠΈ сСрии Ρ€Π°Π·Π±ΠΈΠ΅Π½ΠΈΠΉ с постСпСнно ΡƒΠ²Π΅Π»ΠΈΡ‡ΠΈΠ²Π°ΡŽΡ‰Π΅ΠΉΡΡ Π΄Π΅Ρ‚Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠ΅ΠΉ Π·Π° счСт ΠΏΠ΅Ρ€Π΅ΠΌΠ΅Π½Π½ΠΎΠ³ΠΎ числа кластСров. Π­Ρ‚Π° ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡ‚ΡŒ позволяСт Π²Ρ‹Π±Ρ€Π°Ρ‚ΡŒ подходящиС разбиСния ΠΏΠ°Ρ€ состыкованных ΠΈΠ·ΠΎΠ±Ρ€Π°ΠΆΠ΅Π½ΠΈΠΉ ΠΈΠ· сСрии сгСнСрированных. На ΠΏΠ°Ρ€Π΅ ΠΈΠ·ΠΎΠ±Ρ€Π°ΠΆΠ΅Π½ΠΈΠΉ ΠΈΠ· Π²Ρ‹Π±Ρ€Π°Π½Π½ΠΎΠ³ΠΎ разбиСния состыкованного снимка осущСствляСтся поиск ΠΎΠΏΠΎΡ€Π½Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ Π²Ρ‹Π΄Π΅Π»Π΅Π½Π½Ρ‹Ρ… ΠΊΠΎΠ½Ρ‚ΡƒΡ€ΠΎΠ². Для этих Ρ‚ΠΎΡ‡Π΅ΠΊ опрСдСляСтся Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ΅ ΠΏΡ€Π΅ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΈ послС Π΅Π³ΠΎ примСнСния ΠΊ исходным снимкам осущСствляСтся ΠΎΡ†Π΅Π½ΠΊΠ° стСпСни коррСляции комплСксированного изобраТСния. Как ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅ ΠΎΠΏΠΎΡ€Π½Ρ‹Ρ… Ρ‚ΠΎΡ‡Π΅ΠΊ ΠΊΠΎΠ½Ρ‚ΡƒΡ€Π°, Ρ‚Π°ΠΊ ΠΈ само искомоС Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ΅ ΠΏΡ€Π΅ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ уточняСтся Π΄ΠΎ Ρ‚Π΅Ρ… ΠΏΠΎΡ€, ΠΏΠΎΠΊΠ° ΠΎΡ†Π΅Π½ΠΊΠ° качСства комплСксирования Π½Π΅ Π±ΡƒΠ΄Π΅Ρ‚ ΠΏΡ€ΠΈΠ΅ΠΌΠ»Π΅ΠΌΠΎΠΉ. Π’ΠΈΠ΄ Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ прСобразования подбираСтся ΠΏΠΎ Ρ€Π΅Π΄ΡƒΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹ΠΌ ΠΏΠΎ Ρ†Π²Π΅Ρ‚Ρƒ изобраТСниям, Π° Π·Π°Ρ‚Π΅ΠΌ примСняСтся ΠΊ исходным снимкам. Π­Ρ‚ΠΎΡ‚ процСсс повторяСтся для кластСризованных ΠΈΠ·ΠΎΠ±Ρ€Π°ΠΆΠ΅Π½ΠΈΠΉ с большСй Π΄Π΅Ρ‚Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠ΅ΠΉ Π² Ρ‚ΠΎΠΌ случаС, Ссли ΠΎΡ†Π΅Π½ΠΊΠ° качСства комплСксирования Π½Π΅ являСтся ΠΏΡ€ΠΈΠ΅ΠΌΠ»Π΅ΠΌΠΎΠΉ. ЦСлью настоящСго исслСдования являСтся Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° способа, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‰Π΅Π³ΠΎ ΡΡ„ΠΎΡ€ΠΌΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ комплСксноС ΠΈΠ·ΠΎΠ±Ρ€Π°ΠΆΠ΅Π½ΠΈΠ΅ Π·Π΅ΠΌΠ½ΠΎΠΉ повСрхности ΠΈΠ· Ρ€Π°Π·Π½ΠΎΡ„ΠΎΡ€ΠΌΠ°Ρ‚Π½Ρ‹Ρ… ΠΈ Ρ€Π°Π·Π½ΠΎΡ€ΠΎΠ΄Π½Ρ‹Ρ… снимков. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ прСдставлСны ΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΠ΅ особСнности способа комплСксирования. ΠŸΠ΅Ρ€Π²Π°Ρ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡ‚ΡŒ Π·Π°ΠΊΠ»ΡŽΡ‡Π°Π΅Ρ‚ΡΡ Π² ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠ΅ Π΅Π΄ΠΈΠ½ΠΎΠ³ΠΎ составного изобраТСния ΠΈΠ· ΠΏΠ°Ρ€Ρ‹ состыкованных исходных снимков Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠΌ кластСризации пиксСлСй, Ρ‡Ρ‚ΠΎ позволяСт ΠΏΠΎΠ΄ΠΎΠ±Π½Ρ‹ΠΌ ΠΎΠ±Ρ€Π°Π·ΠΎΠΌ Π²Ρ‹Π΄Π΅Π»ΠΈΡ‚ΡŒ ΠΎΠ΄ΠΈΠ½Π°ΠΊΠΎΠ²Ρ‹Π΅ области Π½Π° Π΅Π³ΠΎ Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… частях. Вторая ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡ‚ΡŒ Π·Π°ΠΊΠ»ΡŽΡ‡Π°Π΅Ρ‚ΡΡ Π² ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ прСобразования ΠΏΠΎ Π²Ρ‹Π΄Π΅Π»Π΅Π½Π½Ρ‹ΠΌ Ρ‚ΠΎΡ‡ΠΊΠ°ΠΌ ΠΊΠΎΠ½Ρ‚ΡƒΡ€Π° Π½Π° ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Π°Π½Π½ΠΎΠΉ ΠΏΠ°Ρ€Π΅ кластСризованных снимков, ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ΅ ΠΈ примСняСтся ΠΊ исходным изобраТСниям для ΠΈΡ… комплСксирования. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ прСдставлСны Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ формирования комплСксного изобраТСния ΠΊΠ°ΠΊ ΠΏΠΎ ΠΎΠ΄Π½ΠΎΡ€ΠΎΠ΄Π½Ρ‹ΠΌ (оптичСским) снимкам, Ρ‚Π°ΠΊ ΠΈ ΠΏΠΎ Ρ€Π°Π·Π½ΠΎΡ€ΠΎΠ΄Π½Ρ‹ΠΌ (Ρ€Π°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹ΠΌ ΠΈ оптичСским) снимкам. ΠžΡ‚Π»ΠΈΡ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ Ρ‡Π΅Ρ€Ρ‚ΠΎΠΉ ΠΏΡ€Π΅Π΄Π»Π°Π³Π°Π΅ΠΌΠΎΠ³ΠΎ способа являСтся ΡƒΠ»ΡƒΡ‡ΡˆΠ΅Π½ΠΈΠ΅ качСства формирования, ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΠ΅ точности ΠΈ информативности ΠΈΡ‚ΠΎΠ³ΠΎΠ²ΠΎΠ³ΠΎ комплСксного изобраТСния Π·Π΅ΠΌΠ½ΠΎΠΉ повСрхности

    Formation of Fused Images of the Land Surface from Radar and Optical Images in Spatially Distributed On-Board Operational Monitoring Systems

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    This paper considers the issues of image fusion in a spatially distributed small-size on-board location system for operational monitoring. The purpose of this research is to develop a new method for the formation of fused images of the land surface based on data obtained from optical and radar devices operated from two-position spatially distributed systems of small aircraft, including unmanned aerial vehicles. The advantages of the method for integrating information from radar and optical information-measuring systems are justified. The combined approach allows removing the limitations of each separate system. The practicality of choosing the integration of information from several widely used variants of heterogeneous sources is shown. An iterative approach is used in the method for combining multi-angle location images. This approach improves the quality of synthesis and increases the accuracy of integration, as well as improves the information content and reliability of the final fused image by using the pixel clustering algorithm, which produces many partitions into clusters. The search for reference points on isolated contours is carried out on a pair of left and right images of the docked image from the selected partition. For these reference points, a functional transformation is determined. Having applied it to the original multi-angle heterogeneous images, the degree of correlation of the fused image is assessed. Both the position of the reference points of the contour and the desired functional transformation itself are refined until the quality assessment of the fusion becomes acceptable. The type of functional transformation is selected based on clustered images and then applied to the original multi-angle heterogeneous images. This process is repeated for clustered images with greater granularity in case if quality assessment of the fusion is considered to be poor. At each iteration, there is a search for pairs of points of the contour of the isolated areas. Areas are isolated with the use of two image segmentation methods. Experiments on the formation of fused images are presented. The result of the research is the proposed method for integrating information obtained from a two-position airborne small-sized radar system and an optical location system. The implemented method can improve the information content, quality, and reliability of the finally established fused image of the land surface

    A Model of Pixel and Superpixel Clustering for Object Detection

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    The paper presents a model of structured objects in a grayscale or color image, described by means of optimal piecewise constant image approximations, which are characterized by the minimum possible approximation errors for a given number of pixel clusters, where the approximation error means the total squared error. An ambiguous image is described as a non-hierarchical structure but is represented as an ordered superposition of object hierarchies, each containing at least one optimal approximation in g0 = 1, 2,..., etc., colors. For the selected hierarchy of pixel clusters, the objects-of-interest are detected as the pixel clusters of optimal approximations, or as their parts, or unions. The paper develops the known idea in cluster analysis of the joint application of Ward’s and K-means methods. At the same time, it is proposed to modernize each of these methods and supplement them with a third method of splitting/merging pixel clusters. This is useful for cluster analysis of big data described by a convex dependence of the optimal approximation error on the cluster number and also for adjustable object detection in digital image processing, using the optimal hierarchical pixel clustering, which is treated as an alternative to the modern informally defined β€œsemantic” segmentation

    Recueil de voyages et de mΓ©moires. Tome 5 / , publiΓ© par la SociΓ©tΓ© de gΓ©ographie

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    Comprend : Voyages de Marco Polo ; Peregrinatio Marci Pauli ; Relation de Ghanat et des coutumes de ses habitans ; Recherches sur les antiquitΓ©s des Etats-Unis de l'AmΓ©rique septentrionale ; Orographie de l'Europe ; Description des merveilles d'une partie de l'Asie ; GΓ©ographie d'Edrisi ; Grammaire et dictionnaire abrΓ©gΓ©s de la langue berbΓ¨re ; ItinΓ©raires de l'Afrique septentrionale ; MΓ©moire sur la partie mΓ©ridionale de l'Asie centrale ; MΓ©moire sur l'ethnographie de la PerseAppartient Γ  l’ensemble documentaire : Sinica1Appartient Γ  l’ensemble documentaire : RfnEns0Appartient Γ  l’ensemble documentaire : RfnAfn1Appartient Γ  l’ensemble documentaire : RfnCoop1Appartient Γ  l’ensemble documentaire : FranceJp0Appartient Γ  l’ensemble documentaire : BbLevt
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