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 37 for “"Multispectral Imaging"”.
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Multispectral Imaging of Skin Oxygenation
This research focuses on the investigation of a multispectral imaging technique for quantitative measurement of skin tissue oxygen saturation (StO2). Oxygen saturation is the percentage of oxygen carried in the blood over the total oxygen carrying capacity of blood. Skin StO2 is an important …
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Imaging of mice and men; adventures in multispectral imaging
… light source we investigate the application of multispectral imaging in early stage prion disease. By analysis of the protein conformation sensitivity of the mid infrared spectra (with particular interest in the Amide I band) we seek to identify structurally relevant markers in a mouse model …
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Multispectral Imaging Techniques for Monitoring Vegetative Growth and Health
… (Normalized Difference Vegetation index) is an imaging technique for quantifying red edge contrast for the identification of vegetation. This imaging technique relies on reflectance values for radiation with wavelength equal to 680 nm and 830 nm. The imaging systems required to obtain this …
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Bioinspired 9-band camera for multispectral imaging in the near-infrared
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-12-01
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Shedding light on the molecular interactomes of fast, complex biological processes using multispectral imaging with uncompromised spatiotemporal resolution
… orchestrating biological processes. Moreover, imaging more than one labelled structure introduces a cost in temporal resolution as labels are imaged sequentially in independent channels. These compounding issues drastically limit our understanding of highly-dynamic, complex biological …
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A bio-inspired, asynchronous, time-domain, multispectral imaging system for high dynamic range near-infrared fluorescence image-guided surgery
DSpace SAF Submission Ingestion Package generated from Vireo submission #13250 on 2019-02-08 at 11:41:37
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A multispectral imaging method and device to detect and quantify the presence of fluid in the middle ear to facilitate the diagnosis and triage of ear infections
… diagnose middle ear infection, we propose a multispectral visible - nIR otoscope that operates in the range of 600 nm - 1050 nm. We have performed experiments to demonstrate the proof of concept of our device on phantoms that includes, 3D printed middle ear structure, tympanic membrane made …
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TACTILE AND MULTISPECTRAL BIMODAL IMAGING FOR BREAST CANCER RISK ASSESSMENT
… breast tumors and tissue using non-invasive imaging modalities. The proposed bimodal imaging system has tactile and multispectral imaging capabilities. Tactile imaging modality characterizes tumors by esti-mating their depth, size, and stiffness, along with the Tactile Index. Multispectral …
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Spinel: a framework for counting wheat spikes and kernels using UAV and ground-based imaging in breeding fields
… combines unmanned aerial vehicle (UAV)-captured multispectral imaging and fieldcaptured RGB camera imaging for advanced phenotyping. The framework employs three distinct YOLOv8 models tailored to specific detection tasks. UAV-based imaging and infield imaging through mobile cameras are used to …
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Alternaria Leaf Blight and Head Rot of Broccoli: UAV-Based Disease Detection and Fungicide Resistance Management
… of pathogens and fungicide program failures. Multispectral imaging is increasingly adopted for disease monitoring in specialty crops, though its efficacy for ABHR in broccoli fields is unexplored. During the 2021-2024 field seasons, samples with ABHR symptoms were collected from brassica crops …
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Application of optical and infrared remote sensing to the retrieval of selected land and sea features
… study on the potential applicability of airborne multispectral remote sensing technology to pasture biomass prediction in New Zealand. This was a pilot project, done in collaboration with AgResearch Ltd. and Dexcel Ltd. Charles Sturt University’s four-band airborne multispectral imaging system was …
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Innovative Approaches for Detection and Management of Fruit Rot Diseases in Annual Hill Plasticulture Strawberry Production System
… In recent years, remote sensing, including multispectral imaging, offers an advanced technological method for the early identification, mapping, and spatial tracking of pest and disease outbreaks. Additionally, anaerobic soil disinfestation (ASD) offers a promising alternative to …
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The Effects of Tamoxifen on Mammary Development in Prepubertal Heifers
… cells was impacted by TAM treatment. However, imaging analysis indicated a markedly higher intensity of ER expression in CON calves. TAM caused an increase in myoepithelial cell differentiation similar to what is seen in ovariectomy. We were able to effectively use a new technique of …
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Predicting Corn Response to Variable Synthetic Fertilizer Treatments Using UAV-Derived Imagery
… visible light and four monochrome sensors for multispectral imaging (red: 650 nm ± 16 nm, green: 560 nm ± 16 nm, near-infrared (NIR): 840 nm ± 26 nm, red-edge: 730 nm ± 16 nm). UAV-derived vegetation indices (VIs) responsive to Chl and indicative of crop yield potential were computed to model …
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EVALUATION OF THE HEPATIC MICROENVIRONMENT BEFORE AND AFTER ANTIVIRAL THERAPY FOR CHRONIC HEPATITIS C
… were analyzed using NanoString nCounter and multispectral imaging to determine gene expression and immune cells phenotypes. Then, the findings were correlated and analyzed with clinical outcomes. Patients achieved sustained virologic response (SVR) post-treatment, with significant reductions …
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The Immune Microenvironment of Microsatellite Instable Endometrial Cancer
… from these two groups followed by automated multispectral imaging and analysis to visualize and quantify staining in the tumor epithelial and stromal compartments. Nonparametric Mann-Whitney test was used to determine statistical significance (p value</p> <p>Overall, MSI-H EC demonstrated …
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Non-invasive objective assessment of diabetic foot ulcer healing with blood perfusion and tissue oxygenation
… saturation (StO2). The laser speckle integrated multispectral imaging system is an optical, non�invasive system that is able to provide quantitative and visual information of blood perfusion and tissue oxygen in diabetic ulcer. The estimation of blood perfusion is based on speckle contrast …
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Novel Optical Endoscopes for Early Cancer Diagnosis and Therapy
Imaging is the only medical tool currently capable of non-invasively capturing detailed, real time and spatially resolved biochemical information in vivo and thus delineating disease so that non-invasive curative resection or treatment of the affected area can take place. Though visible and near …
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Quantifying the Diversity of Agronomic Traits of Cicer Milkvetch (Astragalus cicer L.) Germplasm Collections Using UAV-Based Imagery
… from June to mid-October using UAV-based multispectral imaging, and 3) Identify UAV-based traits with significant correlations to the forage DMY and growth of cicer milkvetch. Near Clavet Saskatchewan, a completely randomized nursery of 27 cicer milkvetch populations was characterized nine …
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RGB and NIR Image Registration for Proximal Multiband Imaging
… agricultural productivity and sustainability. Multispectral imaging relying on red-green-blue (RGB) and near-infrared (NIR) imagery has become an essential tool in high-throughput plant phenotyping. However, accurate analysis requires precise alignment between the images captured using these …
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