Essays about: "pixel resolution"

Showing result 16 - 20 of 93 essays containing the words pixel resolution.

  1. 16. High resolution x-ray imaging by measuring the induced charge distribution

    University essay from KTH/Fysik

    Author : Zihui Jin; [2022]
    Keywords : Computed tomography; photon-counting detector; silicon; spatial resolution; Datortomografi; fotonräknande detektor; kisel; spatial upplösning;

    Abstract : Computed tomography (CT) is a medical imaging technique used to create cross-section images of human bodies based on x-rays. The emerging photon-counting CT detector shows several advantages compared with the traditional energy integrating detector. READ MORE

  3. 17. Development of methods and software for rapid quality control in fluoroscopy

    University essay from Umeå universitet/Institutionen för fysik

    Author : Majid Khosamadi; [2021]
    Keywords : ;

    Abstract : Background: Fluoroscopy is a common imaging technique which uses X-ray to derive a real time imaging of patient anatomy to determine diagnosis and positioning of patients for interventional procedures. It is therefore important that the fluoroscopy systems maintain their performance. READ MORE

  4. 18. Behind the early warning: Improving impact-based forecasting of riverine floods in Malawi using passive microwave remote sensing

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Lone Mokkenstorm; [2021]
    Keywords : Physical Geography; Ecosystem Analysis; Early Warning; Riverine Floods; Humanitarian Work; Impact-based Forecasting; Malawi; Earth and Environmental Sciences;

    Abstract : This thesis investigates whether freely available, coarse-resolution, Passive Microwave Remote Sensing (PMRS) data (37 GHz) can be effectively used for early warning systems for floods in Malawi. The Shire River Basin in Chikwawa and the smaller-scale North Rukuru River Basin in Karonga were studied using two alternative, ratio-based satellite indices that make use of the signal difference between wet and dry pixel cells: The m index and the rcmc index. READ MORE

  5. 19. Upscaling of pictures using convolutional neural networks

    University essay from Uppsala universitet/Avdelningen för visuell information och interaktion

    Author : Caspar Norée Palm; Hugo Granström; [2021]
    Keywords : super; resolution; convolutional; neural; networks; upscaling; pictures; psnr; u-net; unet;

    Abstract : The task of upscaling pictures is very ill-posed since it requires the creation of novel data. Any algorithm or model trying to perform this task will have to interpolate and guess the missing pixels in the pictures. Classical algorithms usually result in blurred or pixelated interpolations, especially visible around sharp edges. READ MORE

  6. 20. Local Feature Correspondence on Side-Scan Sonar Seafloor Images

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Li Ling; [2021]
    Keywords : ;

    Abstract : In underwater environments, the perception and navigation systems are heavily dependent on the acoustic wave based sonar technology. Side-scan sonar (SSS) provides high-resolution, photo-realistic images of the seafloor at a relatively cheap price. READ MORE