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Presentation Per Henrik Hogstad -Mathematics -Statistics -Physics(Main subject: Theoretical Nuclear Physics) -Computer Science -Programming / Objectorienting -Algorithms and Datastructures -Databases -Digital Image Processing -Supervisor Master Thesis -Research -Mathematics of Wavelets + Computer Application Wavelets/Medicine -SimReal+(SimReal + SimVideo)
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Projects External Projects Mathematics / Physics / Statistics / ICT Internal Projects SimReal+ (SimReal + SimVideo
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External Projects SINTEF Unimed Ultrasound in Trondheim The Norwegian Radiumhospital in Oslo Sørlandet hospitalin Kristiansand / Arendal Mathematics - Computer Science - Medicine
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The Norwegian Radiumhospital in Oslo -Control of the Linear Accelerator -Databases (patient/employee/activity) -Computations of patientpositions -Mathematical computations of medical image information -Different imageformat (bmp, dicom, …) -Noise Removal -Graylevel manipulation (Histogram, …) -Convolution, Gradientcomputation -Multilayer images -Transformations (Fourier, Wavelet, …) -Mammography -... Wavelet
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The Norwegian Radiumhospital in Oslo Linear Accelerator -Control of the Linear Accelerator -Databases (patient/employee/activity) -Computations of patient positions Patient Database Computer Linear Accelerator
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Wavelets New mathematical method with many interesting applications Divide a function into parts with frequency and time/position information Signal Processing-Image Processing-Astronomy/Optics/Nuclear Physics Image/Speech recognition-Seismologi-Diff.equations/Discontinuity …
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N=2 N=10 The Norwegian Radiumhospital Mammography Micro-calcifications Fourier Transformation
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Definition of The Continuous Wavelet Transform CWT The continuous-time wavelet transform (CWT) of f(x) with respect to a wavelet (x): L 2 (R )
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Wavelet Transform Morlet Wavelet Fourier / Wavelet Fourier Wavelet
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The Norwegian Radiumhospital Mammography Micro-calcifications Wavelet Transformation - Mexican Hat ECG Mammography Seismic
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The Norwegian Radiumhospital Mammography Micro-calcifications Diameter Relative contrast Number of microcalcifications Mathematical tranformation of the mammography imaging Mammography phantom Phantom information Transformed image
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Wavelet Transform Mammography - Video
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Osteroporosis External part E/I bone edge Morlet
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Ultrasound Image - Edge detection SINTEF – Unimed – Ultrasound - Trondheim -Ultrasound Images -Egde Detection -Noise Removal -Egde Sharpening -Edge Detection Prosthesis
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Internal / External links Lessons Exercises / Solutions Video lessons / Streaming Mastering PhysicsSimReal+ Subject Resources
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SimReal+ = SimReal + SimVideo SimReal+ SimReal SimVideo
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SimReal+ Interactice Learning Tool in Mathematics / Physics / Statistics / Computer Science Video Lesson / Live Streaming / Video Simulation / Interactive Simulation / Exercise / Applicaction Video Lesson Streaming Video Simulation Interactive Simulation Exercise Application
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Mathematics Parabel
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Live Streaming Different Chapters
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Live Streaming Contents Time
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Comments / Results - A great supplement, and very good academic contents - A great way to repeat past lectures - I wish this could be used in all my courses - Enables me to get a better understanding of the subject - Extremely impressive that you have spent all this time to create such a fantastic tool. Survey Exam - Physics Comments from the students
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SimReal+ - Research Brekke: LICE conference London International Conference on Education Brekke/Hogstad:Journal New teaching methods Using computer technology in physics and mathematics Elira Curri:Master Thesis (UiA, Albania) Ninni Marie Hogstad:Master Thesis (UiA)
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