Sökning: "histogram analysis"
Visar resultat 1 - 5 av 30 avhandlingar innehållade orden histogram analysis.
1. Discrete Scale-Space Theory and the Scale-Space Primal Sketch
Sammanfattning : This thesis, within the subfield of computer science known as computer vision, deals with the use of scale-space analysis in early low-level processing of visual information. The main contributions comprise the following five subjects:The formulation of a scale-space theory for discrete signals. LÄS MER
2. Applications of diffusion MRI: Tensor-valued encoding, time-dependent diffusion, and histological validation
Sammanfattning : Diffusion MRI (dMRI) sensitizes the MR signal to the diffusion of water molecules at the microscopic level and thereby non-invasively probes tissue microstructure. This is relevant when determining biological properties of tissues, for example, cancer type and its malignancy. LÄS MER
3. Image and Data Analysis for Biomedical Quantitative Microscopy
Sammanfattning : This thesis presents automatic image and data analysis methods to facilitate and improve microscopy-based research and diagnosis. New technologies and computational tools are necessary for handling the ever-growing amounts of data produced in life science. LÄS MER
4. Segmentation and Visualisation of Human Brain Structures
Sammanfattning : In this thesis the focus is mainly on the development of segmentation techniques for human brain structures and of the visualisation of such structures. The images of the brain are both anatomical images (magnet resonance imaging (MRI) and autoradigraphy) and functional images that show blood flow (functional magnetic imaging (fMRI), positron emission tomography (PET), and single photon emission tomograpy (SPECT)). LÄS MER
5. Global-Scale Modelling of the Land-Surface Water Balance : Development and Analysis of WASMOD-M
Sammanfattning : Water is essential for all life on earth. Global population increase and climate change are projected to increase the water stress, which already today is very high in many areas of the world. The differences between the largest and smallest global runoff estimates exceed the highest continental runoff estimates. LÄS MER