Essays about: "Autofocus"

Showing result 1 - 5 of 8 essays containing the word Autofocus.

  1. 1. Real-time Autofocus Algorithm in Laser Speckle Contrast Imaging

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Giovanni Russo; [2023]
    Keywords : Laser speckle contrast imaging; Autofocus; Blind image sharpness assessment; Speckle noise; Perimed’s Perfusion Speckle Imager;

    Abstract : Microcirculation is defined as the blood flow in the smallest blood vessels. Laser speckle contrast imaging (LSCI) is a full field imaging technique that provides instantaneous 2-D perfusion maps of illuminated tissues based on speckle contrast. READ MORE

  3. 2. Contribution to the Understanding of the Effects of Propagation through the Ionosphere of P-band SAR Data

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Johannes Samuel Erland Rönner; [2023]
    Keywords : Synthetic aperture radar; Ionosphere;

    Abstract : The BIOMASS mission from the European Space Agency (ESA) is designed to measurebiomass and carbon content in Earth’s forests. To account for phase changes caused byionospheric variations, a map-drift autofocus algorithm is developed, which utilises a phasescreen of the ionosphere to eliminate phase errors in the signal. READ MORE

  4. 3. Comparison of Autofocus Methods for Highly Reflective Surfaces : A Case Study on the Inspection of Optical Filters

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Axel Hedvall; [2023]
    Keywords : autofocus; reflective surface; optical filter; visual inspection; autofokus; reflekterande yta; optiskt filter; visuell inspektion;

    Abstract : Visual inspection is a crucial final step when manufacturing products, as it determines if a product can be sold or rejected. The inspection is often performed manually by trained inspectors, which is time-consuming and often subjective. By automating the inspection, it can be performed faster and more accurately. READ MORE

  5. 4. Development of a tool to analyze back-focus characteristics of fix-focal cameras

    University essay from Lunds universitet/Innovation

    Author : Björn Lind; [2022]
    Keywords : Technology and Engineering;

    Abstract : Fix-focal cameras require careful alignment of the sensor relative to the lens during assembly in order to produce a sharp image. Axis developed wide- and fish-eye network cameras are, for a number of reasons, focused at infinity when aligned. READ MORE

  6. 5. Towards the Performance Assessment of aMapdrift Autofocus for a P-Band SARMission Implementation

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Andrés Felipe Betancourt Payán; [2019]
    Keywords : SAR; Autofocus; P-Band; Biomass;

    Abstract : In the context of the ESA BIOMASS mission in which for the first time, a P-Band SAR sensor isgoing to be mounted into a spaceborne system. With its penetration capability, it will contributeto the measurement of the biomass and carbon content in the Earth’s forests. READ MORE