Essays about: "Point Spread function"

Showing result 16 - 20 of 30 essays containing the words Point Spread function.

  1. 16. Air flow disturbance by moving objects at local exhaust ventilation

    University essay from Högskolan i Gävle/Avdelningen för bygg- energi- och miljöteknik

    Author : Mikel Aguirre Sánchez; [2015]
    Keywords : Local exhaust ventilation;

    Abstract : The present thesis aims to study the effect of human movements on local exhaust ventilation. In its simplest terms, local exhaust ventilation is a system which has the function of extracting contaminated air situated close to the contaminant source, protecting a working person from exposure to hazardous substances by containing or capturing them locally, at the emission point. READ MORE

  3. 17. Stray Light Compensation in Optical Systems

    University essay from Lunds universitet/Matematik LTH

    Author : Aleksis Pirinen; Angelos Toytziaridis; [2015]
    Keywords : stray light; point spread function; deconvolution; image processing; Technology and Engineering;

    Abstract : All optical equipment suffers from a phenomenon called stray light, which is defined as unwanted light in an optical system. Images contaminated by stray light tend to have lower contrast and reduced detail, which motivates the need for reducing it in many applications. READ MORE

  4. 18. Optimization and design of a detection system based on transmission tomography with fast neutrons

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Tom Bjelkenstedt; [2014]
    Keywords : Transmission tomography; fast neutrons; scintillator; detector;

    Abstract : This thesis is part of a project focusedon investigating the possibility ofmeasuring void distributions usingtransmission tomography with fastneutrons. The measurements are plannedto be conducted at thermal hydraulictest loops. The project, called STUNT,is carried out at Uppsala University atthe division for applied nuclearphysics. READ MORE

  5. 19. Visual Quality Improvement of Digital Video by Stabilization Using Adaptive CMAC Filtering

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Amir Zahoor; Wittaya Koodtalang; [2013]
    Keywords : Digital video stabilization; DVS; Cerebellar model articulation controller; CMAC; Smoothness index; Peak signal to noise ratio; Point spread function;

    Abstract : A Digital Video Stabilization (DVS) system removes the unwanted shaking in the videos acquired by hand-held cameras and preserves the panning. In this thesis work, a digital video stabilization model is proposed based upon adaptive cerebellar model articulation controller (CMAC) filtering. READ MORE

  6. 20. Optimization of X-ray Source for Digital Mammography -  X-ray Optics Approach

    University essay from Institutionen för medicinsk teknik; Tekniska högskolan

    Author : Mineh Nazary; [2012]
    Keywords : ;

    Abstract : The work presents a new design of X-ray source for digital mammography imaging with the help of crystal sources and X-ray optics technology. The aim of the project was to introduce a new source for medical x ray imaging and evaluate its ability of performance. The source is build of an array of multiple micro-emitters instead of a single source. READ MORE