62 lines
2.5 KiB
Matlab
62 lines
2.5 KiB
Matlab
classdef CardiacPhase < Phase
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properties
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FullPhase = Phase;
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SelectedPhase = [];
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SystolePositions = [];
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DiastolePositions = [];
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end
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methods %constructor
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function obj=CardiacPhase(Phase)
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if nargin==0;return;end
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% gets properties of superclass
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obj.FullPhase = Phase.Values;
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obj.WorkLoad = Phase.WorkLoad;
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obj.Video = Phase.Video;
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end
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%
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% methods %set methods
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% % function set.ToBeSetByUser(obj,val)
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% % if ~isboolean(val);error('provide a boolean value please');end
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% % obj.ToBeSetByUser=val;
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% % end
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% end
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%
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% Choose the correct IMF depending on the work load
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function SelectPhase(obj)
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if strcmp(obj.WorkLoad,'Rest')
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imf_number = 3;
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else if strcmp(obj.WorkLoad,'Exercise')
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imf_number = 2;
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else if strcmp(obj.WorkLoad,'Continuous Acquisition')
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imf_number = 3;
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end
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end
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end
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obj.SelectedPhase = obj.FullPhase(imf_number,:); % Phase corresponding to the cardiac phase
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end
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% Detects the frame's positions of diastolic events
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function Diastole(obj)
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max_heart_phase = max(obj.SelectedPhase); % cardiac phase maxima
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treshold_diast = 0.8*max_heart_phase; % diastole treshold
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index1 = obj.SelectedPhase > treshold_diast; % frames with phase above the diastolic treshold
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indexNumeric1 = find(index1);
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values1 = obj.SelectedPhase(indexNumeric1);
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[ordered_values1 oredered_index1] = sort(values1);
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obj.DiastolePositions = indexNumeric1(oredered_index1); % sorts the frames in ascending cardiac phase
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end
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% Detects the frame's positions of systolic events
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function Systole(obj)
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min_heart_phase = min(obj.SelectedPhase); % cardiac phase minima
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treshold_syst = 0.8*min_heart_phase; % systole treshold
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index2 = obj.SelectedPhase < treshold_syst; % frames with phase below the systolic treshold
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indexNumeric2 = find(index2);
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values2 = obj.SelectedPhase(indexNumeric2);
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[ordered_values2 oredered_index2] = sort(values2);
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obj.SystolePositions = indexNumeric2(oredered_index2); % sorts the frames in ascending cardiac phase
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end
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end
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end |