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.
Results
Showing 1 to 12 of 12 for “"3D Camera"”.
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3D Camera Based on Gain-Modulated CMOS Avalanche Photodiodes
… In this thesis we propose a new concept of range camera exploiting linear-mode avalanche photodiodes as in-pixel demodulating detectors. Due to photocurrent gain modulation, avalanche photodiodes can combine optical sensing and light signal demodulation in a single device. The main advantage of …
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Development of Immersive and Interactive Virtual Reality Environment for Two-Player Table Tennis
… activities by employing tracking or even 3D display technology can be considered as a small scale VR. For the research presented in this thesis, a novel realistic real-time table tennis game combining immersive, interactive and competitive features is developed. The implemented system …
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Active Vision for Object Recognition by Dynamically Fusing Eye-in-Hand Data
… on active vision, that dynamically manipulate cameras (mounted on autonomous robots) in order to better explore and understand the environment, as compared to static camera solutions. Such an active vision approach can help with: (i) avoiding occlusion by direct camera manipulation, (ii) …
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Multi-scale metrology for automated non-destructive testing systems
… NDT applications. The method uses 2D and 3D camera measurements along with CAD models to extract and match shape information. It was found that optical large volume measurements could provide suffciently high accuracy measurements to allow ultrasonic alignment methods to work, establishing …
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Machine Learning with Geometric Algebra: Multivectors for Modelling, Understanding and Computing
… and structure prediction; Chapter 4 addresses 3D camera pose estimation and 3D line alignment; Chapter 5 focuses on the solution of partial differential equations for computational fluid dynamics and electromagnetism. We demonstrate that GA can be employed as a versatile, practical and …
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Design and Validation of a Dynamic Pressure-Based Loading Device and 3D Strain Tracking Protocol for Ventral Hernia Modeling
… By recording a video of the cough using a 3D camera, we were able to successfully track the deformation of the tissue in three-dimensions with an acceptable level of accuracy. The design and validation of this testing method will pave the way for a variety of experiments that will provide …
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Eye controlled semi-Robotic Wheelchair for quadriplegic users embedding Mixed Reality tools
… a non-invasive eye tracker, a monitor, and a 3D camera represent some of the core elements. The developed prototype integrates, on a standard power wheelchair, functionalities from the mobile robotics field, with the main benefit of providing to the user two driving options and comfortable …
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Accelerating point cloud cleaning
… task. Next, we introduce roll-corrected 3D camera navigation that allows a user to look around freely while reducing disorientation. A user study shows that this camera mode significantly reduces a user's navigation time (29.8% to 57.8%) between locations in a large point cloud thus …
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Development of a Full-Field Time-of-Flight Range Imaging System
… time-of-flight, image ranging system or 3D camera has been developed from a proof-of-principle to a working prototype stage, capable of determining the intensity and range for every pixel in a scene. The system can be adapted to the requirements of various applications, producing high …
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3D face modeling with a consumer depth camera
Modeling the 3D geometry of the face is an important research topic in computer graphics and computer vision. The applications for face models include computer animation and facial analysis. Over the past few decades, several face modeling techniques have been developed using both active and …
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Randomised cross-over trial assessing the impact of angle, area, distance, curvature, volume, spatial coordinates, and effect of eye exercises in surgical task performance: 2D vs 3D laparoscopic vision
… reasons for the apparent improvement in 3D surgical task performance nor the causes for the eye strain and possible ways to minimize this squeal.<br/><br/><b>Objective</b>: This study was aimed to investigate the effect of angle, area, distance, volume, curvature and spatial coordinates …
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Standardization for intelligent detection and autonomous operation of non-structured hardware, and its application on railcar brake release operation
This thesis introduces a standard framework for evaluating and planning for desired autonomous (or semi-autonomous) operations, then applies the framework, in detail, to the task of automating emergency brake release before rail-car decoupling. A significant hurdle to be accounted for is the lack …