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- W45304046 abstract "The current thesis has been written as part of the undergraduate studies for the department of Electrical and Computer Engineering of Patras University. Its objective is the three-dimensional (3D) reconstruction from two, at least, photographs, which is part of computer vision. More specifically, this thesis analyzes in detail the case of stereo vision when the camera, among two successive shots of the same image, has zero relative rotation compared to its initial position and an average translation of about 5 cm. In this way, it attempts to simulate human vision since this is essential for many Artificial Intelligence applications.Humans take stereo vision for granted since they live in a three-dimensional world. However, this world becomes two-dimensional when recorded by a camera. We can still get information about the image depth but this is empirically done based on comparing various heights, shapes and sizes. Images are identified by the computer as any other file. Computers cannot draw conclusions about what is depicted in the real world. They need to combine at least two images of the same scene and of different positions to identify the image’s depth.This process is described in the current thesis. The first chapter describes stereo vision and why it is so useful. The second chapter provides the basic principles of projective geometry, the mathematical background for passing from the two-dimensional level to the three-dimensional. The third chapter refers to camera modeling and its parameters (instrisic and extrinsic). Chapter four analyzes the camera calibration process. Chapter five explains the matching process of points of interest in both pictures. The sixth chapter provides the basic principles of epipolar geometry. The seventh chapter shows the experimental procedure that we followed in order to estimate the depth of the scene. Chapter eight shows how the 3D reconstruction is finally done. Chapter nine talks about our conclusions and how the results could improve.Both theoretical and experimental parts of this project cover the key points of 3d reconstruction. The results of the experiments show that the existing methods are satisfying but could improve more. We want to thank our supervisor professor Mr. Dermatas for his collaboration and his understanding." @default.
- W45304046 created "2016-06-24" @default.
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- W45304046 date "2011-10-14" @default.
- W45304046 modified "2023-09-26" @default.
- W45304046 title "Τρισδιάστατη ανακατασκευή χώρου από ένα μικρό αριθμό φωτογραφιών" @default.
- W45304046 hasPublicationYear "2011" @default.
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