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Update 7/5/2019

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This commit is contained in:
João Narciso
2019-05-07 16:36:02 +02:00
parent 431ff5f7d4
commit cd47edb1fd
4 changed files with 117 additions and 36 deletions
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Code/test_OOP.m
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@ -1,16 +1,23 @@
% Test Script
% TO DO LIST:
% - Display phases
% - Heart beat reconstruction with steady respiratory phase
% - Multislice analysis
% - Choose IMF based on Instantaneous Frequency
% - Error messages and robustness of the methods
clear classes
%% Extracts data
phase = Phase; % creates a Phase object
phase.GetData; % extracts data
%% Time Information
time = 0:1:phase.nFrames-1;
repetitionTime = (1/15); % time between samples
time = repetitionTime*time; % sampling moments in time
%% Workload information
% Should become a set method
% User sets the workload, important to choose the correct IMF
list = {'Rest','Exercise','Continuous Acquisition'};
@ -18,17 +25,47 @@ list = {'Rest','Exercise','Continuous Acquisition'};
str = list{indx};
phase.WorkLoad = str;
phase.GetSignal % gets mean intensity level of the images
phase.GetEMD % decompose the siganl using EMD
phase.GetPhase % turn the modes into phase information
%% Instantaneous Phase Extraction (cardiac ad respiratory)
phase.GetSignal; % gets mean intensity level of the images
phase.GetEMD; % decompose the siganl using EMD
phase.GetModes; % turn the modes into phase information
cardiac_phase = CardiacPhase(phase) % creates a CradiacPhase object
cardiac_phase.SelectPhase % choose the right imf besed on the work load
cardiac_phase = CardiacPhase(phase); % creates a CradiacPhase object
cardiac_phase.SelectPhase; % choose the right imf besed on the work load IMPROVE
respiratory_phase = RespiratoryPhase(phase); % creates a RespiratoryPhase object
respiratory_phase.SelectPhase; % choose the right imf based on the work load IMPROVE
cardiac_phase.Display
hold on
respiratory_phase.Display
% hold on
% hline = refline([0 cardiac_phase.SystoleTreshold]); % Reference line for systole treshold phase
% hline.Color = 'b';
% hline.LineStyle = ':';
% hold on
% hline = refline([0 cardiac_phase.DiastoleTreshold]); % Reference line for diastole treshold phase
% hline.Color = 'b';
% hline.LineStyle = ':'
% hold on
% hline = refline([0 respiratory_phase.InspirationTreshold]); % Reference line for systole treshold phase
% hline.Color = 'r';
% hline.LineStyle = ':';
% hold on
% hline = refline([0 respiratory_phase.ExpirationTreshold]); % Reference line for diastole treshold phase
% hline.Color = 'r';
% hline.LineStyle = ':';
title('Cardiac and Respiratory Phase');
legend('Cardiac Phase','Respiratory Phase');
te=repetitionTime;
xt=get(gca,'xtick');
set(gca,'xticklabel',arrayfun(@num2str,xt*te,'un',0)); % adjust x axis to time values
xlabel('Time (sec)');
ylabel('Phase(rad)');
%% Cardiac and Respiratory events
cardiac_phase.Diastole % detects diastolic events
cardiac_phase.Systole % detects systolic events
respiratory_phase = RespiratoryPhase(phase) % creates a RespiratoryPhase object
respiratory_phase.SelectPhase % choose the right imf besed on the work load
respiratory_phase.Expiration % detects expirtion moments
respiratory_phase.Inspiration % detects inspiration moments
@ -43,6 +80,27 @@ phase.ShowFrames(SE,'End-systolic frames in expiration');
phase.ShowFrames(DI,'End-diastolic frames in inpiration');
phase.ShowFrames(DE,'End-diastolic frames in expiration');
%% Heart Beat Reconstruction
n_ranges = 30; % number of phase ranges
ranges = linspace(respiratory_phase.MinRespPhase,respiratory_phase.MaxRespPhase,n_ranges+1); % splits the respiratory phase in n_ranges equal parts
for i=1:1:n_ranges
Ltreshold = ranges(i);
Utreshold = ranges(i+1);
index(i,:) = respiratory_phase.Values < Utreshold & respiratory_phase.Values > Ltreshold; % the respiratory phase is within the upper and lower treshold of this range
indexNumeric{i} = find(index(i,:)); % indexes of the frames satifying the previous condition
if iscolumn(indexNumeric{i})
indexNumeric{i} = indexNumeric{i}.'; % puts the indexes in a vector
end
values{i} = cardiac_phase.Values(indexNumeric{i}); % cardiac phase values of frames within this respiratory range
% Sorts cardiac phase values and their indexes by ascending cardiac phase
[ordered_values{i}, oredered_index{i}] = sort(values{i});
k = indexNumeric{i};
j = oredered_index{i};
new_index{i} = k(j); % ordered indexes
end
selected_range = n_ranges-2;
phase.ShowFrames(new_index{selected_range},'Heart Beat Reconstruction');
% c = ImageSequence
% c.ToBeSetByUser=15
% c.ToBeSetByUser=true