3190

2864

كارشناسي ارشد

الكترونيك

اصفهان: دانشگاه صنعتي اصفهان، دانشكده برق و كامپيوتر

1384

يازده، 155، [II]ص.: مصور، جدول، شكل، نمودار

سعيد صدري

رسول امير فتاحي

1396/10/26

كتابنامه

برق و كامپيوتر

مهندسي برق و كامپيوتر

ID2864

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

AbstractObject tracking is one of the important and developing issues in image processing andmachine vision In fact Object tracking monitors the object position variations and tracksit during a video sequence for a particular purpose Historically object tracking has beenintroduced and developed in military area but after 1980 s much of attention have beenpaid to it in other fields One of the problems in the tracking algorithm is occlusion It isvery important to present the tracking algorithms that are robust when occlusion problem isencountered One of the methods for object tracking is a mesh based scheme Althoughthis algorithm is more efficient than other methods but it fails to track the desired object inthe presence of occlusion In this thesis we employ an adaptive mesh method to increasethe robustness of algorithm against occlusion In this algorithm mesh points are selectedaccording to amount of variations between two successive frames Modifying the meshstructure in successive frames and not using a fixed one for all the frames helps the meshto adapt itself with entrance and exit of different objects and also with occlusion throughsuccessive frames The most important parts of the algorithm are implementation of thepolygon approximation which is an important approximation in the object tracking modification the selection of mesh points implementation of a method of triangulation andproposal of a simple fast method for triangulation We present all above mentionedmodifications and proposals to overcome limitations of mesh tracking algorithm

سعيد صدري

رسول امير فتاحي