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 20 of 51 for “"3D information"”.
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The Effects of Immersion on 3D Information Visualization
The effects of immersion with respect to information visualization have rarely been explored. In this thesis, we describe a methodology, two information visualization applications that were developed using the CAVE, and three user studies in order to explore, examine and attempt to quantify the …
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Analysis and exploration of virtual 3D city models using 3D information lenses
… addresses real-time rendering techniques for 3D information lenses based on the focus & context metaphor. It analyzes, conceives, implements, and reviews its applicability to objects and structures of virtual 3D city models. In contrast to digital terrain models, the application of focus & …
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Developing an accurate close-range photogrammetric technique for extracting 3D information from spherical panoramic images
… Panoramas have widely been used to texture 3D models generated from laser scanning, for creating virtual reality tour applications, documenting landscape and cultural heritage sites, advertising real estates and recording crime scenes. The goal of this research was to develop an accurate …
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Understanding scene structure from images
"The task of recovering 3D information from 2D images has long been a focus of Computer Vision research. Such information is useful in many applications: from robot navigation, where it allows the robot to understand the physical constraints of the environment it is in, to augmented reality, where …
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Next generation tools for smart electron microscopy
… cutting-edge vision models, incorporation of 3D information and vision transformers for improved neuronal segmentation and pipeline speedup. Our goal is to develop tools that improve the existing SmartEM pipeline, making it more versatile and effective for deployment in various practical …
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Machine learning methods for architected materials
… in-situ X-ray tomography can provide detailed 3D information, it has not been possible to achieve a similar level of detail for dynamic processes which cannot be interrupted. In the third part of the thesis, we develop a framework based on neural rendering which enables the reconstruction of 3D …
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C-ARM TOMOGRAPHIC IMAGING TECHNIQUE FOR DETECTION OF KIDNEY STONES
… (CT). As a traditional three-dimensional (3D) nephrolithiasis and kidney stones detection technique, computed tomography (CT) provides detailed cross-sectional images as well as 3D structure of kidney from moving the x-ray beam in a circle around the body. However, the risk of CT scans of …
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Tactile sensing using elastomeric sensors
… sensor, is a novel tactile sensor to get the 3D information of contacting surfaces. Using GelSight, some tactile properties, such as softness and roughness, could be gained through image processing techniques. In this thesis, I implemented GelSight principle to reconstruct surface geometry of …
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Three-dimensional image processing for synthetic holographic stereograms
… of one-step stereograms which are excellent 3D hardcopy displays with potential for applications that require fast visual communication of complex 3D information.
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Amodal video instance segmentation
… three improvements: First, we leverage temporal information. Specifically, we employ 3D convolutions and a flow alignment module which permits to aggregate the objects’ features across frames. Second, we develop a cascaded box-head with soft-non-maximum-suppression to address the challenge that …
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Efficient 3D building model generation from 2D floor plans
3D building models are beneficial to architects, interior designers, and ordinary people in visualizing indoor space in three dimensions. 3D building models appear to be more aesthetic to ordinary people than architectural drawings. Architects can benefit from such models in detecting any …
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Inferring system properties from thermodynamic fluctuations : a tool development approach
… a fluorescence imaging platform which allows 3D information combined with non-invasive and photostable probes named single-walled carbon nanotubes. The second chapter discusses an image processing algorithm for analyzing the fluorescence images acquired with the proposed custom-built …
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Underwater localization using imaging sonars in 3D environments
… under certain constraints, the extraction of 3D information from a sensor considered, in the literature, as 2D and also in situations where there is no reference at the same horizontal plane of the sensor transducer scanning axis. The localization in complex 3D environment is also an advantage …
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3D reconstruction from 2D images and applications to cell cytoskeleton
Approaches to achieve three dimensional (3D) reconstruction from 2D images can be grouped into two categories: computer-vision-based reconstruction and tomographic reconstruction. By exploring both the differences and connections between these two types of reconstruction, the thesis attempts to …
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Robotic 3D Reconstruction Utilising Structure from Motion
… and tackle the challenges of recovering 3D information from an environment using vision alone. There is a well-established literature on the principles of doing this, and some impressive demonstrations; but this thesis explores the practicality of doing vision-based 3D reconstruction …
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Collaborative Unmanned Air and Ground Vehicle Perception for Scene Understanding, Planning and GPS-denied Localization
… the systems involved are unable to use a priori information about the scene (e.g. road maps). This is especially true in disaster response scenarios, where existing maps are now out of date. Areas without GPS are another concern, especially when the involved systems are tasked with navigating a …
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Models for multi-view object class detection
… model, which exploits the relationship between 3D objects and their 2D projections for efficient and effective learning. The Potemkin model can be constructed from a few views of an object of the target class. We use the Potemkin model to transform images of objects from one view to several …
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Assisting Spatial Referencing for Collaborative Augmented Reality
… AR often requires detailed environment 3D information, which can be critical for the system to acquire as constrained by current technology. This dissertation seeks to address the issues related to spatial referencing in collaborative AR through 3D user interface design and different …
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Information visualization of the stock market ticks : toward a new trading interface
… to represent with traditional graphical methods. Information-intensive disciplines such as medicine, bioinformatics, the earth sciences, and computational fluid dynamics have adopted modern visualization methods to manage and explore their respective mountains of data. Finance, however, has done …
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