5 research outputs found

    Π˜Π½Ρ‚Π΅Π»Π»Π΅ΠΊΡ‚ΡƒΠ°Π»ΠΈΠ·Π°Ρ†ΠΈΡ контроля Π²Π°Π³ΠΎΠ½ΠΎΠ² Π² ΠΆΠ΅Π»Π΅Π·Π½ΠΎΠ΄ΠΎΡ€ΠΎΠΆΠ½ΠΎΠΌ сортировочном ΠΏΠ°Ρ€ΠΊΠ΅

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    The railway marshalling station occupies a central place in the technological chain of freight transportation processes, since the speed of processing trains at marshalling yards determines the volume and cost of transportation. Therefore, development of automation and computerization of sorting processes results in growing efficiency of freight transportation in general. The objective of the study is to formalize the problem of cars’ monitoring within the railway marshalling yard and to develop a method for solving it with the use of algorithms of recognizing and positioning of dynamic objects through the intelligent data analysis of streaming video. The article presents a new approach to solution of the problem of monitoring moving units in the hump (sorting) yard of marshalling stations. The article suggests core criteria for identifying speed and positioning of the railway wagons when they are running after been separated at the hump. The article specifies that monitoring of moving units at hump yard is less automated in comparison with the monitoring at the hump itself, and that confirms the relevance of the research. To get the problem of the automation monitoring of moving units in the hump yard solved, the authors have suggested an algorithm that is based on the image data intelligent analysis, that is on computer vision, and have described the model of its implementation at a station. The methods used are based on the theory of computer vision and are aimed at recognizing key dynamic objects in streaming video and at their subsequent positioning. The study has resulted in substantiation of acceptability of the use of computer vision in the process of separation and formation of trains. It is planned to proceed with further improvement of the presented approach to develop a software product allowing to objectify information about hump yard in order to increase the efficiency of targeted braking at the hump.ЖСлСзнодороТная сортировочная станция Π·Π°Π½ΠΈΠΌΠ°Π΅Ρ‚ Ρ†Π΅Π½Ρ‚Ρ€Π°Π»ΡŒΠ½ΠΎΠ΅ мСсто Π² тСхнологичСской Ρ†Π΅ΠΏΠΎΡ‡ΠΊΠ΅ Π³Ρ€ΡƒΠ·ΠΎΠ²Ρ‹Ρ… ΠΏΠ΅Ρ€Π΅Π²ΠΎΠ·ΠΎΡ‡Π½Ρ‹Ρ… процСссов, ΠΏΠΎΡΠΊΠΎΠ»ΡŒΠΊΡƒ ΡΠΊΠΎΡ€ΠΎΡΡ‚ΡŒ ΠΏΠ΅Ρ€Π΅Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ ΠΆΠ΅Π»Π΅Π·Π½ΠΎΠ΄ΠΎΡ€ΠΎΠΆΠ½Ρ‹Ρ… составов Π½Π° Π½Π΅ΠΉ опрСдСляСт ΠΎΠ±ΡŠΡ‘ΠΌ ΠΈ ΡΡ‚ΠΎΠΈΠΌΠΎΡΡ‚ΡŒ ΠΏΠ΅Ρ€Π΅Π²ΠΎΠ·ΠΎΠΊ. ΠŸΠΎΡΡ‚ΠΎΠΌΡƒ Ρ€Π°Π·Π²ΠΈΡ‚ΠΈΠ΅ срСдств Π°Π²Ρ‚ΠΎΠΌΠ°Ρ‚ΠΈΠ·Π°Ρ†ΠΈΠΈ ΠΈ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ‚ΠΈΠ·Π°Ρ†ΠΈΠΈ сортировочных процСссов Π²Π΅Π΄Ρ‘Ρ‚ ΠΊ ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡŽ эффСктивности Π³Ρ€ΡƒΠ·ΠΎΠ²Ρ‹Ρ… ΠΏΠ΅Ρ€Π΅Π²ΠΎΠ·ΠΎΠΊ Π² Ρ†Π΅Π»ΠΎΠΌ. ЦСлью Ρ€Π°Π±ΠΎΡ‚Ρ‹ являСтся формализация Π·Π°Π΄Π°Ρ‡ΠΈ контроля Π²Π°Π³ΠΎΠ½ΠΎΠ² Π² ΠΆΠ΅Π»Π΅Π·Π½ΠΎΠ΄ΠΎΡ€ΠΎΠΆΠ½ΠΎΠΌ сортировочном ΠΏΠ°Ρ€ΠΊΠ΅ ΠΈΡ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° ΠΌΠ΅Ρ‚ΠΎΠ΄Π° Π΅Ρ‘ Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ, основанного Π½Π° использовании Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ² распознавания ΠΈ позиционирования динамичСских ΠΎΠ±ΡŠΠ΅ΠΊΡ‚ΠΎΠ² ΠΏΡƒΡ‚Ρ‘ΠΌ ΠΈΠ½Ρ‚Π΅Π»Π»Π΅ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° Π΄Π°Π½Π½Ρ‹Ρ… ΠΏΠΎΡ‚ΠΎΠΊΠΎΠ²ΠΎΠ³ΠΎ Π²ΠΈΠ΄Π΅ΠΎ. Π’ Ρ€Π°Π±ΠΎΡ‚Π΅ прСдставлСн Π½ΠΎΠ²Ρ‹ΠΉ ΠΏΠΎΠ΄Ρ…ΠΎΠ΄ ΠΊ Ρ€Π΅ΡˆΠ΅Π½ΠΈΡŽ Π·Π°Π΄Π°Ρ‡ΠΈ контроля ΠΏΠΎΠ΄Π²ΠΈΠΆΠ½Ρ‹Ρ… Π΅Π΄ΠΈΠ½ΠΈΡ† Π² ΠΏΠΎΠ΄Π³ΠΎΡ€ΠΎΡ‡Π½ΠΎΠΌ (сортировочном) ΠΏΠ°Ρ€ΠΊΠ΅ ΠΆΠ΅Π»Π΅Π·Π½ΠΎΠ΄ΠΎΡ€ΠΎΠΆΠ½Ρ‹Ρ… сортировочных станций. ΠŸΡ€ΠΈΠ²ΠΎΠ΄ΡΡ‚ΡΡ основныС ΠΊΡ€ΠΈΡ‚Π΅Ρ€ΠΈΠΈ опрСдСлСния скорости двиТСния ΠΈ позиционирования Π³Ρ€ΡƒΠΏΠΏ Π²Π°Π³ΠΎΠ½ΠΎΠ² ΠΏΡ€ΠΈ ΠΈΡ… Π΄Π²ΠΈΠΆΠ΅Π½ΠΈΠΈ послС расформирования Π½Π° сортировочной Π³ΠΎΡ€ΠΊΠ΅. ΠžΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΎ, Ρ‡Ρ‚ΠΎ ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŒ ΠΏΠΎΠ΄Π²ΠΈΠΆΠ½Ρ‹Ρ… Π΅Π΄ΠΈΠ½ΠΈΡ† Π² сортировочном ΠΏΠ°Ρ€ΠΊΠ΅ являСтся ΠΌΠ΅Π½Π΅Π΅ Π°Π²Ρ‚ΠΎΠΌΠ°Ρ‚ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹ΠΌ процСссом ΠΏΠΎ ΡΡ€Π°Π²Π½Π΅Π½ΠΈΡŽ с ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»Π΅ΠΌ Π½Π° сортировочной Π³ΠΎΡ€ΠΊΠ΅. Для Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ поставлСнной Π·Π°Π΄Π°Ρ‡ΠΈ Π°Π²Ρ‚ΠΎΠΌΠ°Ρ‚ΠΈΠ·Π°Ρ†ΠΈΠΈ контроля ΠΏΠΎΠ΄Π²ΠΈΠΆΠ½Ρ‹Ρ… Π΅Π΄ΠΈΠ½ΠΈΡ† Π² сортировочном ΠΏΠ°Ρ€ΠΊΠ΅ ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌ Π½Π° Π±Π°Π·Π΅ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² ΠΈΠ½Ρ‚Π΅Π»Π»Π΅ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° Π²ΠΈΠ΄Π΅ΠΎΠ΄Π°Π½Π½Ρ‹Ρ… – ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½ΠΎΠ³ΠΎ зрСния – ΠΈ прСдставлСна Π΅Π³ΠΎ модСль Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ Π½Π° ΠΊΠΎΠ½ΠΊΡ€Π΅Ρ‚Π½ΠΎΠΌ ΠΎΠ±ΡŠΠ΅ΠΊΡ‚Π΅. ΠœΠ΅Ρ‚ΠΎΠ΄Ρ‹ Ρ€Π°Π±ΠΎΡ‚Ρ‹ основаны Π½Π° Ρ‚Π΅ΠΎΡ€ΠΈΠΈ ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½ΠΎΠ³ΠΎ зрСния ΠΈ Π½Π°ΠΏΡ€Π°Π²Π»Π΅Π½Ρ‹ Π½Π° распознаваниС ΠΊΠ»ΡŽΡ‡Π΅Π²Ρ‹Ρ… динамичСских ΠΎΠ±ΡŠΠ΅ΠΊΡ‚ΠΎΠ² Π½Π° ΠΏΠΎΡ‚ΠΎΠΊΠΎΠ²ΠΎΠΌ Π²ΠΈΠ΄Π΅ΠΎ с ΠΈΡ… ΠΏΠΎΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΠΌ ΠΏΠΎΠ·ΠΈΡ†ΠΈΠΎΠ½ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠΌ ΠΏΡ€ΠΎΠ²Π΅Π΄Ρ‘Π½Π½ΠΎΠΉ Ρ€Π°Π±ΠΎΡ‚Ρ‹ являСтся обоснованиС Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚ΠΈ использования ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Π½ΠΎΠ³ΠΎ зрСния Π² процСссС расформирования-формирования ΠΆΠ΅Π»Π΅Π·Π½ΠΎΠ΄ΠΎΡ€ΠΎΠΆΠ½Ρ‹Ρ… составов. Π’ дальнСйшСм планируСтся ΡΠΎΠ²Π΅Ρ€ΡˆΠ΅Π½ΡΡ‚Π²ΠΎΠ²Π°Π½ΠΈΠ΅ прСдставлСнных Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΎΠΊ для ΠΏΠΎΠ΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΠΈ Π³ΠΎΡ‚ΠΎΠ²ΠΎΠ³ΠΎ ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΠ½ΠΎΠ³ΠΎ ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚Π°, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‰Π΅Π³ΠΎ ΠΎΠ±ΡŠΠ΅ΠΊΡ‚ΠΈΠ²ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΡŽ ΠΎ сортировочном ΠΏΠ°Ρ€ΠΊΠ΅ для ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΡ эффСктивности ΠΏΡ€ΠΈΡ†Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ тормоТСния Π½Π° сортировочной Π³ΠΎΡ€ΠΊΠ΅

    Occlusion handling in multiple people tracking

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    Object tracking with occlusion handling is a challenging problem in automated video surveillance. Occlusion handling and tracking have always been considered as separate modules. We have proposed an automated video surveillance system, which automatically detects occlusions and perform occlusion handling, while the tracker continues to track resulting separated objects. A new approach based on sub-blobbing is presented for tracking objects accurately and steadily, when the target encounters occlusion in video sequences. We have used a feature-based framework for tracking, which involves feature extraction and feature matching

    Detecting Steganography of Adaptive Multirate Speech with Unknown Embedding Rate

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    Online Selection of Tracking Features Using AdaBoost

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    [[abstract]]Β©2009 IEEE-This paper presents an online feature selection algorithm for video object tracking. Using the object and background pixels from the previous frame as training samples, we model the feature selection problem as finding a good subset of features to better classify object from background in current frame. This paper aims to improve existing methods by taking correlation between features into consideration. We propose to use AdaBoost algorithm to iteratively select one feature which best compensates the previously selected features. Using the selected features, we then construct a compound likelihood image, which shows the ability to discriminate better than the original frame, as the input for the tracking process. We also propose to use ellipse fitting to eliminate mislabeled pixels from our training process. In addition, we propose an online feature validity test to monitor the selected features and only re-select features when the previously selected features become out-of-date. Experimental results demonstrate that the proposed algorithm combined with mean-shift based tracking algorithm achieves very promising results.[[department]]θ³‡θ¨Šε·₯程學
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