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 8 of 8 for “"Image stitching"”.
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Towards Parking Lot Occupancy Assessment Using Aerial Imagery and Computer Vision
… downstream applications. To this end, aerial imagery could be leveraged to analyze the usage of parking lots. This would enable retail centres to allocate space better and eliminate the parking oversupply problem. With this use case in mind, the proposed research introduces a novel framework …
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Autoencoder-based image dimensionality reduction methods
In this thesis, we study how images can be represented in a more compact way that still captures their most important features and preserves the similarities and dissimilarities between the images. These compact representations of images, also known as ‘image encodings’, allow us to identify …
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Computational Optical Imaging Systems for Spectroscopy and Wide Field-of-View Gigapixel Photography
… the object scene. Traditional pushbroom spectral imagers acquire high resolution spectral and spatial resolution at the expense of acquisition time. Multiplexed spectral imagers acquire spectral and spatial information at each instant of time. Using a coded aperture and dispersive element, the …
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3D sensing and mapping using mobile color and depth sensors
… a novel algorithm that takes in few depth images and utilizes them to simultaneously denoise and calibrate time-of-flight based depth cameras. Our formulation is based on two key elements. We first use depth planarization in 3D to denoise the depth at each corner pixel. Thereafter, we use …
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Interferometric light microscopy for wafer defect inspection and three-dimensional object reconstruction
… defects, we further reduced the noise in the images by developing an image post-processing method, called 2DISC (2nd-order image difference, image stitching, and convolution). With the 2DISC method, we examined a 22 nm node intentional defect array (IDA) wafer. The results showed that we can …
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Integrated Growth and Process Technology for Atomically Thin Single Crystal Films
… studied through the use of Raman spectroscopy, image analysis and film etching to characterise the defect density of the graphene film under different parameters. It was found that the current best method of suppressing graphene nucleation density, an oxidative pretreatment to remove carbon …
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Dynamic patterning of maternal mRNAs in the Early C. elegans embryo
… thesis. We also customized correlation-based image registration algorithm to perform image stitching for more direct visualization of a big field of tissue sample. We found that the AER surprisingly expresses both the epithelial marker and the mesenchymal marker, unlike a normal …
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Time Delay Mitigation in Aerial Telerobotic Operations Using Predictors and Predictive Displays
… were developed that modify the delayed video imagery that would otherwise be presented to the operator in a way that provides an almost immediate visual response to the operator's control actions. The usability of the system is determined through human performance testing with and without the …