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 17 of 17 for “"monocular vision"”.
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Corridor Navigation for Monocular Vision Mobile Robots
<p>Monocular vision robots use a single camera to process information about its environment. By analyzing this scene, the robot can determine the best navigation direction. Many modern approaches to robot hallway navigation involve using a plethora of sensors to detect certain features in the …
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Monocular vision for collision avoidance in vehicles
… Inc. on the potential substitution of stereovision systems in car automation with monocular vision systems. The monocular system pairs a camera and passive lens with an active lens. Most active lenses require linear actuating systems to adjust the optical parameters of the system but this …
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Monocular Vision and Image Correlation to Accomplish Autonomous Localization
… aims to provide one such technique based on monocular vision. First, the system requires a map be generated, which consists of a set of geo-referenced video images. This map is generated offline before autonomous navigation is required. When an autonomous vehicle is later deployed, it will be …
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Real-time Monocular Vision-based Tracking For Interactive Augmented Reality
The need for real-time video analysis is rapidly increasing in today's world. The decreasing cost of powerful processors and the proliferation of affordable cameras, combined with needs for security, methods for searching the growing collection of video data, and an appetite for high-tech …
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Monocular vision based navigation using image moments of polygonal features
This thesis presents a novel monocular-vision-based localization and mapping algorithm using moments of polygon features. The landmarks we use are polygonal regions instead of a dense set of feature points, which can significantly reduce the computational complexity of data association and produce …
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Six degrees of freedom estimation using monocular vision and moiré patterns
We present the vision-based estimation of the position and orientation of an object using a single camera relative to a novel target that incorporates the use of moire patterns. The objective is to acquire the six degree of freedom estimation that is essential for the operation of vehicles in close …
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Geometry model for marker-based localisation
… a novel approach for position estimation from monocularvision. It has been shown that vision systems have great capability in reaching precise and accurate measurements and are becoming the state-of-the-art innavigation. Navigation systems have only been integrated in commercial mobile robots …
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A semi-autonomous vision-based navigation system for a mobile robotic vehicle
… this thesis aims to develop a semi-autonomous vision-based navigation system for a small mobile robotic vehicle designed by Draper Laboratory. The system relies on monocular vision processing to employ an optical flow balance strategy for real-time obstacle avoidance. The system utilizes a …
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Design and development of an autonomous mobile robot for parking lot mapping
… Towards this goal, this thesis presents a monocular vision-based perception system that generates a visually interpretable parking lot map using a constructed 1/3rd scale Security Patrol Robot (SPR). The proposed perception pipeline uses semantic segmentation, inverse perspective mapping, …
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Vision-Aided Navigation for Autonomous Vehicles Using Tracked Feature Points
… on a ground robot and a quadrotor UAV. The vision-aided navigation algorithms are implemented on data-collected from sensors on an unmanned ground vehicle and a quadrotor, and the results are validated by comparison with GPS data. The thesis investigates sensor fusion techniques for …
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Geo-referencing and mosaicing agricultural field images from a close-range sensing platform
… be extracted. For these purposes, two computer vision algorithms were developed for pre-processing the field images from two monocular vision systems. One algorithm was used for a tower remote sensing system data pre-processing for image distortion removal and the mosaic to generate …
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Fixed-wing Classification through Visually Perceived Motion Extraction with Time Frequency Analysis
… as for recognizing aircraft that may not be so. Vision systems offer significant size, weight, power, and cost (SWaP-C) advantages, which motivates exploration of algorithms to further aid with monitoring performance. A method to classify aircraft using vision systems to measure their motion …
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Sensor development for estimation of biomass yield applied to Miscanthus Giganteus
… An alternative system based on a machine vision based diameter sensor, which supported the dynamic measurement, was applied. A binocular stereo vision based diameter sensor and a structured lighting-based monocular vision diameter estimation system were developed and evaluated in sequence. …
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The Effect of Jungle Light Spectrum on the Fearfulness of Commercial Broiler Chickens
… Chickens are prey animals that depend on their vision safety. Chickens “see” the word differently than humans and other animals in several significant ways. They have four cones for color vision compared to three for humans. This results in a broader light spectrum range especially in the lower …
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Floor Plan Based Indoor Vision Navigation Using Smart Device
… navigation guidance. In this thesis, a vision navigation system is developed for pedestrian indoor navigation using smart device. In order to derive the three-dimensional camera position from the monocular camera vision, a geo-reference database is needed. Floor plan is a ubiquitous …
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Vision based estimation, localization, and mapping for autonomous vehicles
… estimation framework primarily using monocular vision sensors. A primary contribution of this work is to use a robot-centric mapping framework concurrently with a world-centric localization method. We exploit the differential equation of motion of the normalized pixel coordinates of …
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Estimation de l'échelle absolue par vision passive monofocale et application à la mesure 3D de néoplasies en imagerie coloscopique
Vision-based metrology devices generally embed stereoscopic sensors or active measurement systems. Most of the passive 3D reconstruction techniques (Structure-from-Motion, Shape from-Shading) adapted to monocular vision suffer from scale ambiguity. Because the processing of image acquisition …