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ECG noise generator
Kachlík, Miloš ; Vítek, Martin (referee) ; Hrubeš, Jan (advisor)
The aim of this work is to create the ECG signal noise generator in system MATLAB to verify the correct functioning of filtering methods. When the ECG signal is filtered, it can occur to its deformation. Differences before and after filtration are clearly visible, when it used a pure ECG signal. Well-defined interference is most appropriate for this purpose, because interference parameters are known and properties of filtering methods can be modified to achieve the maximum efficiency while the ECG signal shape distortion was minimal. Created program implements the basic types of ECG signal interferences, powerline interference, myopotentials, electrode artifacts and baseline wander.
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Implementation of a metric for video quality evaluation
Kachlík, Miloš ; Dostál, Petr (referee) ; Slanina, Martin (advisor)
The aim of this work is to create a program able to implement the metric CPqD-IES to evaluate the quality of video in system MATLAB. This metric is described in Recommendation ITU-R BT.1683 for objective video quality measurement techniques for standard definition digital broadcast television with presence of a full reference. Video quality assessment is calculated objective parameters based on image segmentation. Natural scenes are segmented into edge, plane and texture regions. Objective parameters are assigned to each of these contexts. The relationship between each objective parameter and a subjective impairment level is approximated by the logistic curve, which is resulting in an estimated impairment level for each parameter.
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ECG noise generator
Kachlík, Miloš ; Vítek, Martin (referee) ; Hrubeš, Jan (advisor)
The aim of this work is to create the ECG signal noise generator in system MATLAB to verify the correct functioning of filtering methods. When the ECG signal is filtered, it can occur to its deformation. Differences before and after filtration are clearly visible, when it used a pure ECG signal. Well-defined interference is most appropriate for this purpose, because interference parameters are known and properties of filtering methods can be modified to achieve the maximum efficiency while the ECG signal shape distortion was minimal. Created program implements the basic types of ECG signal interferences, powerline interference, myopotentials, electrode artifacts and baseline wander.
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|
|
Implementation of a metric for video quality evaluation
Kachlík, Miloš ; Dostál, Petr (referee) ; Slanina, Martin (advisor)
The aim of this work is to create a program able to implement the metric CPqD-IES to evaluate the quality of video in system MATLAB. This metric is described in Recommendation ITU-R BT.1683 for objective video quality measurement techniques for standard definition digital broadcast television with presence of a full reference. Video quality assessment is calculated objective parameters based on image segmentation. Natural scenes are segmented into edge, plane and texture regions. Objective parameters are assigned to each of these contexts. The relationship between each objective parameter and a subjective impairment level is approximated by the logistic curve, which is resulting in an estimated impairment level for each parameter.
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