Sökning: "image processing"

Visar resultat 1 - 5 av 775 uppsatser innehållade orden image processing.

1. 1. Evaluation of whole-body bone scans performed using a gamma camera with Cadmium Zinc Telluride detector

   Master-uppsats,

   Författare :Victor Asp; [2022-01-13]
   Nyckelord :Medical physics; whole-body bone scans; gamma camera; Cadmium Zinc Telluride detector;

   Sammanfattning : The bone scan is a common nuclear medicine imaging procedure that is mainly used for evaluating several oncological patient groups. A radioactive tracer, 99mTc -labelled diphosphonate, is injected intravenously and accumulates in the skeleton. The distribution of the tracer in the body is measured with a gamma camera 3 hours post-injection. LÄS MER

3. 2. Exploiting Spatial Redundancy and Approximate Computing for Area Efficient Image Compression

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Saurav Arjun; [2022]
   Nyckelord :Image Compression; VLSI; Spatial redundancy; DCT; Compression; System Verilog; Technology and Engineering;

   Sammanfattning : Owing to the intensive computation involved in the Discrete Cosine Transform during image com- pression, the design of the efficient hardware architectures for fast computation of the transform has become imperative, especially for real-time applications. Although fast computation techniques have been able to minimise the hardware computation complexity to a certain limit, they could further extend the research to figure out the interesting approaches which can be implemented on applications where power, speed and area are crucial factors to determine the performance of the system. LÄS MER

4. 3. Geological characterization of rock samples by LIBS and ME-XRT analytical techniques

   Master-uppsats, Luleå tekniska universitet/Geovetenskap och miljöteknik

   Författare :Nsioh Elvis Nkioh; [2022]
   Nyckelord :geological characterization; analytical techniques; LIBS; ME-XRT; SEM; element maps; SEM-EDS; secondary electrons; rock samples; automated ore microscopy; SEM-Zeiss Merlin; element weight percentages; element oxide percentages; scanning techniques; analytical methods; laser induced breakdown spectrometry; multi energy x-ray transmission; scanning electron microscope; carbon coating; mineralogical classification; element composition; rock chemistry; rock chemical composition;

   Sammanfattning :      One of the major challenges in earth sciences and mineral exploration has been to determine with high accuracy and at a fast rate the elemental composition as well as the general chemistry of a rock sample. Many analytical techniques e.g. LÄS MER

5. 4. Human pose estimation in low-resolution images

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

   Författare :Hugo Nilsson; [2022]
   Nyckelord :Human Pose Estimation; Low-Resolution Images; Heatmap Decoding; Computer Vision; Deep Learning; Mänsklig Poseuppskattning; Lågupplösta Bilder; Färgdiagram Avkodning; Datorseende; Djupinlärning;

   Sammanfattning : This project explores the understudied, yet important, case of human pose estimation in low-resolution images. This is done in the use-case of images with football players of known scale in the image. Human pose estimation can mainly be done in two different ways, the bottom-up method and the top-down method. LÄS MER

7. 5. Optimization of an advanced algorithm for bone imaging

   Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

   Författare :Adam Mrozek; [2022]
   Nyckelord :osteoporosis; optimization; programming; engineering; X-ray; bone; mineral density; speed; faster; projection; MATLAB; C ; Technology and Engineering;

   Sammanfattning : Fracture risk in osteoporosis is increased and osteoporosis is the most common metabolic bone disease and treatment is expensive. Osteoporosis is diagnosed by measuring Bone Mineral Density (BMD), which does not consider other factors such as bone geometry or architecture. LÄS MER