Sökning: "Multispectral imaging"
Visar resultat 1 - 5 av 16 avhandlingar innehållade orden Multispectral imaging.
1. Colorimetric and Multispectral Image Acquisition
Sammanfattning : The trichromatic principle of representing color has for a long time been dominating in color imaging. The reason is the trichromatic nature of human color vision, but as the characteristics of typical color imaging devices are different from those of human eyes, there is a need to go beyond the trichromatic approach. LÄS MER
2. High Resolution Analysis of Halftone Prints : A Colorimetric and Multispectral Study
Sammanfattning : To reproduce color images in print, the continuous tone image is first transformed into a binary halftone image, producing various colors by discrete dots with varying area coverage. In halftone prints on paper, physical and optical dot gains generally occur, making the print look darker than expected, and making the modeling of halftone color reproduction a challenge. LÄS MER
3. Multispectral imaging of hemoglobin oxygen saturation in skin microcirculation
Sammanfattning : The ability to measure microcirculatory parameters such as hemoglobin oxygen saturation is important since it mirrors the microcirculatory state of the body. The microcirculation delivers oxygen and nutrients to the cells of the body and, if impaired, may be a sign of circulatory failure. LÄS MER
4. Frequency Recognition Algorithm for Multiple Exposures : Snapshot imaging using coded light
Sammanfattning : The central challenge tackled in this thesis is the development of an optical imaging approach capable of multidimensional image capture of dynamic samples. Many conventional optical imaging approaches, which can obtain dimensional information such as spectral, polarisation, or volumetric, to name a few, about samples either employ sequential image capture or parallelised detector arrangements. LÄS MER
5. Model-based Approaches to Diffuse Optical Imaging and Dosimetry
Sammanfattning : The work within this thesis investigates Photodynamic therapy and Fluorescence imaging for therapeutics and visualization of deeply embedded lesions. Photodynamic therapy (PDT) is a cancer treatment modality that can eradicate tumors when light, a photosensible drug and oxygen are present. LÄS MER