Sökning: "Background subtraction"

Visar resultat 11 - 15 av 40 uppsatser innehållade orden Background subtraction.

  1. 11. Dating lake bottom sediment by searching for 210Pb using gamma-ray spectroscopy

    Kandidat-uppsats, Uppsala universitet/Tillämpad kärnfysik

    Författare :William Bäckström; [2020]
    Nyckelord :sediment dating; dating; spectroscopy; gamma-ray; nuclear; lead; HPGe detector; sedimentation; sedimentation rate; attenuation; migration; limnologist; least squares;

    Sammanfattning : In a collaboration with limnologists at Uppsala University a planar HPGe detector has been used to find 210Pb in lake bottom sediment in hopes of getting an estimation for the sedimentation rate. Using a least squares fit to the data, the sedimentation rate was calculated to 0.08 ± 0. LÄS MER

  3. 12. SEG-YOLO: Real-Time Instance Segmentation Using YOLOv3 and Fully Convolutional Network

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Zhuoyue Wang; [2019]
    Nyckelord :;

    Sammanfattning : Computer vision technology has been widely applied to augment sports TV broadcast experience.  Some of these broadcasts require accurate fore- ground segmentation on the outdoor sports scene, i.e., segmentation of po- tential sports players and highlight them. LÄS MER

  4. 13. Electronic structure calculations of defects in diamond for quantum computing : A study of the addition of dopants in the diamond structure

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Diana Elisa Murillo Navarro; [2019]
    Nyckelord :Density Functional Theory; Quantum computing; Diamond; Dopants; Quantum physics; NV color center;

    Sammanfattning : When doing computations on the negatively (positively) charged NV-center in diamond, the common procedure is to add (subtract) an electron from the system. However, when using periodic boundary conditions, this addition/subtraction of an electron from the supercell would result in a divergent electrostatic energy. LÄS MER

  5. 14. Performance of jet subtraction in pPb and PbPb collisions, without collectivity

    Kandidat-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Författare :Sebastian Grabowski; [2018]
    Nyckelord :heavy ion: scattering; Angantyr; underlying event; subtraction; jet: quenching; non-collectivity; stacking; jet: correlation; non-colliective; background; Physics and Astronomy;

    Sammanfattning : We investigated the performance of basic jet subtraction, by the utilization of jet reconstruction generally used at the Large Hadron Collider (LHC). This was done by studying Z-bosons, in the dielectron decay channel, and the associated jet correlation in pp, pPb and PbPb collisions, using datasets generated by the Monte Carlo generator PYTHIA8. LÄS MER

  7. 15. A performance measurement of a Speaker Verification system based on a variance in data collection for Gaussian Mixture Model and Universal Background Model

    Magister-uppsats, Malmö universitet/Fakulteten för teknik och samhälle (TS)

    Författare :Zeid Bekli; William Ouda; [2018]
    Nyckelord :Speaker recognition; Speaker Verification; Speaker authentication; Speaker classification; Gaussian mixture model; Gaussian Mixture Model-Universal Background Model; Biometric System; Equal Error Rate; False Negative Rate; False Positive Rate; Mel Frequency Cepstrum Coefficients;

    Sammanfattning : Voice recognition has become a more focused and researched field in the last century,and new techniques to identify speech has been introduced. A part of voice recognition isspeaker verification which is divided into Front-end and Back-end. LÄS MER