Sökning: "spatial distortions"
Hittade 4 uppsatser innehållade orden spatial distortions.
1. Faster Environment Modelling and Integration into Virtual Reality Simulations
Magister-uppsats, Högskolan i Skövde/Institutionen för ingenjörsvetenskapSammanfattning : The use of virtual reality in engineering tasks, such as in virtual commissioning, has increased steadily in recent years, where a robot, machine or object of interest can be simulated and visualized. Yet, for a more immerse experience, an environment for the object in question needs to be constructed. LÄS MER
2. Spatially Coupled Codes in Turbo Equalization
Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknikSammanfattning : In this thesis we investigate the application of spatial coupling in turbo equalization. We show that with spatial coupling we can have a fresh perspective on the trade-off between performance in the waterfall and error floor region often encountered in the choice of codes for turbo equalization. LÄS MER
3. Development of a Quality Assurance Strategy for Magnetic Resonance Imaging in Radiotherapy
Master-uppsats, Umeå universitet/Institutionen för fysik; Umeå universitet/RadiofysikSammanfattning : Radiotherapy is a common treatment option for malignant tumors. The use of magnetic resonance imaging in radiotherapy is increasing world-wide and sets additional requirements on the image quality compared to diagnostics applications. LÄS MER
4. Quality Assurance of the Spatial Accuracy of Large Field of View Magnetic Resonance Imaging
Master-uppsats, KTH/Skolan för teknik och hälsa (STH)Sammanfattning : In todays Radiotherapy Treatment Planning, RTP, it is common to use Computed Tomography, CT, together with Magnetic Resonance Imaging, MRI, where CT provides electron density information and a geometrical reference, and where MRI provides superior soft tissue contrast. To sim- plify the workflow and improve treatment accuracy, research groups have demonstrated how to exclude CT and use a MRI-only approach. LÄS MER