Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 124 for “"Optical flow"”.
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Optical flow based local navigation
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
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Fast scheduling for Optical Flow Switching
Optical Flow Switching (OFS) is a key enabler of future scalable optical networks. In the past decade, the OFS architecture has been studied to build an all-optical data plane to provide an end-to-end, cost-effective data transport to users with large transactions. Flow switching provides low-cost …
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Threshold schemes for optical flow switching
… In WDM networks, an alternative to IP routing is Optical Flow switching. The idea behind the Optical Flow switching is to set up WDM cut-trough transmissions for large messages. Unfortunately, current WDM systems only have a limited number of channels that can be used for cut-through …
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Dense Optical Flow Estimation using Diffusion Distances
… we can apply the diffusion framework to dense optical flow estimation where diffusion maps are used to embed distributions of local spatial gradients. We review the problem of dense optical flow estimation and several broad types of approaches to computing accurate estimate of the flow. We then …
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Optical flow using phase information for deblurring
… information generated with a phase-based optical flow calculation. The optical flow method applies a set of frequency-tuned Gabor filters to an image sequence in order to determine the component velocities for each pixel by tracking temporally separated phase contours. The resulting set of …
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Improvement in Frame Prediction using Optical Flow
… reduce model uncertainty shown in predictions, optical flow information from each video was extracted and combined with the video frames. An optical flow-based approach is uncommon in frame prediction and has not been implemented with a fully Convolutional Neural Network (CNN) based …
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Structure from Motion Using Optical Flow Probability Distributions
… to work properly because of the noise in the optical flow values. Most structure from motion algorithms implicitly assume that the noise is identically distributed and that the noise is white. Both assumptions are false. Some points can be track more easily than others and some points can be …
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Design and analysis of optical flow switched networks
In the four decades since optical fiber was introduced as a communications medium, optical networking has revolutionized the telecommunications landscape. It has enabled the Internet as we know it today, and is central to the realization of Network-Centric Warfare in the defense world. Sustained …
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Optical flow for obstacle detection in mobile robots
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
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Three-dimensional optical flow measurements with short coherence holography
Die holographische Aufzeichnung kleinster Streuteilchen hat sich als wertvolle Methode für die Messung drei-dimensionaler Strömungsgeschwindigkeitsfelder herausgestellt. Nach Einführung der Holographic Particle Image Velocimetry (HPIV) wird auf deren Rauschempfindlichkeit eingegangen. Mit einer …
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Metropolitan Area Network architecture design for Optical Flow switching
Optical Flow switching (OFS) is a key enabler of future scalable all-optical networks for the large traffic flows. In this thesis, we provide design concepts of efficient physical topology and routing architectures for an all-optical Metropolitan Area Network (MAN) that supports OFS. We use …
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End-to-end data reliability in optical flow switching
Ever since optical fiber was introduced in the 1970s as a communications medium, optical networking has revolutionized the telecommunications landscape. With sustained exponential increase in bandwidth demand, innovation in optical networking needs to continue to ensure cost-effective …
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Exploiting texture-motion duality in optical flow and image segmentation
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.
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Terrain mapping from a mobile platform through optical flow techniques
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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Optical Flow Switching with time deadlines for high-performance applications
… design and analysis of scheduling approaches for Optical Flow Switching (OFS) serving high performance applications with very stringent time deadline constraints. In particular, we attempt to meet setup times only slightly longer than one roundtrip time with networks at moderate to high loading. …
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Negative fluorescence : an optical flow cytometric technique for cell volume determination
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1981.
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Implementation and modeling of a scheduled Optical Flow Switching (OFS) network
In this thesis we present analysis of Optical Flow Switching (OFS), an architectural approach for enabling all-optical user to user connections for transmission of Internet traffic. We first describe a demonstration of OFS on the ONRAMP test environment which is a MAN optical network implemented in …
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Perception of Heading From Optical Flow: Effects of Conflicting Velocity and Trajectory Information
… determining heading: the radial trajectories of optical flow, and invariant sources of trajectory information in retinal flow. The present research presents an alternative source of information for determining heading based on gradients of statistical properties of retinal image flow. This …
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A Graph Convolutional Neural Network Based Approach for Object Tracking Using Augmented Detections With Optical Flow
… frame detections into each new frame using optical flow. These are treated as added object proposals which are then classified as objects. A new traffic monitoring dataset is also provided, which includes naturalistic video footage from current infrastructure cameras in Virginia Beach City …
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