Essays about: "Signal processing"

Showing result 21 - 25 of 706 essays containing the words Signal processing.

  1. 21. A Machine Learning Approach to Skin Cancer Delineation on Photoacoustic Imaging

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Beräkningsbiologi och biologisk fysik - Genomgår omorganisation

    Author : Alice Fracchia; [2023]
    Keywords : Skin cancer; carcinoma; photoacoustic imaging; ultrasound imaging; machine learning; dimensionality reduction; sandpiles algorithm; active contour; multilayer perception MLP ; convolutional neural networks CNN ; autoencoder; Physics and Astronomy;

    Abstract : Skin cancer is a growing public health concern due to its prevalence among the population. Current clinical procedures require high invasiveness and multiple surgeries, which are responsible for patient discomfort and high medical expenses. READ MORE

  3. 22. Calibration and preparation of the data analysis of the DORN experiment on board the Chang'E 6 lunar mission.

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

    Author : Íñigo de Loyola Chacartegui Rojo; [2023]
    Keywords : Radon; lunar mission; alpha spectrometry; space instrumentation; performance testing and validation;

    Abstract : As part of the first agreement between the French (CNES) and the Chinese (CNSA) space agencies in terms of space exploration, the DORN instrument will fly on board the Chinese Chang'E 6 mission in 2024. It aims to measure the amount of Radon escaping from the lunar soil to better understand what governs the concentration of this noble gas which contributes to the endogenous origin of the lunar exosphere. READ MORE

  4. 23. Improving Objectivity and Reliability of Observational Risk Assessment Tools by using Technical Instruments

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

    Author : Cephas Charsmar-Etor; [2023]
    Keywords : Direct measurement instruments; Observational instruments; Body segments and postures; Inertial measurement unit; Wearable sensors;

    Abstract : Ergonomic assessments to determine risks of work-related musculoskeletal disorders as well as to compare designs of work-tasks and workstations, are imperative for high sustainability and productivity in any given industry. Hence, assessment tools that can objectively and reliably capture postures, joint angles and muscle activities play very important role in properly determining risks relating to work and various tasks. READ MORE

  5. 24. Speckle suppression in ultrasound images of heterogeneous materials

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

    Author : Simon Johnsson; [2023]
    Keywords : Ultrasound; non-destructive testing; wiener filter; signal processing;

    Abstract : Performing non-destructive testing (NDT) on materials is a helpful tool for maintenance and quality control because the materials are not destroyed or disturbed; ultrasound imaging is one type of NDT. Ultrasound imaging of heterogeneous materials contains many echoes from the material itself. READ MORE

  6. 25. Development of an embedded system platform for signal analysis and processing

    University essay from Uppsala universitet/Signaler och system

    Author : Philip Lind; [2023]
    Keywords : Digital signal processing; DSP; digital filter; FIR; IIR; Butterworth; Chebychev; windowed sinc; Digital signalbehandling; DSP; digitalt filter; FIR; IIR; Butterworth; Chebychev; sinc; fönstermetoder;

    Abstract : Information is often stored and transmitted through electrical signals. This information may need refinement, which may be done by processing and altering the electrical signals, in which it is transmitted. When refining a signal, a frequency selective filter is often used. It can be implemented through digital signal processing (DSP). READ MORE