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DT_Feature_Extraction_from_SegmentedCSV_Backup_v3.m
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function []= DT_Feature_Extraction_from_SegmentedCSV(folderName)
%% Specifying the Parent Folder and Initialize variables for Folders
% From the GoogleDrive folder in D-drive
% clear
% clc
% foldeName=strcat('UM3_Corner_Wall_',num2str(10),'p');
% The folder containing all the segmented data
originFolder = strcat('D:\GDrive\DT_Data\DAQ_Auto_SegmentedData');
% Folder to save the features
destinationFolder =strcat('D:\GDrive\DT_Data\DAQ_Auto_Features');
%DaQ sampling rate is 20 kHz
fs=20e3;
%Check for the total channels in the origin folder
totalChannelFolderst=dir(strcat(originFolder,'\',folderName));
%exclude unncessary files
%TODO: Make it automatic later!
totalChannelFolders=totalChannelFolderst(3:27);
%% Initialize Global Variables for Feature Extraction
%Time step used by all the feature extraction functions
universalStep=0.05;
universalOverlap=0.5;
%% Initialization Variables for Time Domain Features
Time_numLags = 2; % for autocorrelation
Time_orders = 4; % number of orders for moments
Time_bins = 5; % bins for historgram
Time_peakNumber = 5; % for peak analysis
Time_peakNumberEnvelop = 3; % peaks for envelop analysis
Time_peakNumberGradient = 5; % peaks for gradient analysis
Time_Overlap=universalOverlap; % time overlap windows
Time_step= universalStep; % time step size
Time_win=Time_step./(1-Time_Overlap); %Determine window based on overlap
%Get the feature names
timeFeatureFileName='timeFeatures.csv';
timeFeatureLabelFileName='timeLabel.csv';
%% Initialization for Frequency Domain Features
Frequency_Overlap=universalOverlap;
Frequency_step= universalStep;
Frequency_win=Frequency_step./(1-Frequency_Overlap); %Determine window based on overlap
Frequency_freqrange= [40 5000];
Frequency_param = 0.9;
Frequency_harmonicNumber =3;
Frequency_numberOfMFCCCoef=13;
frequencyFeatureFileName='frequencyFeatures.csv';
frequencyFeatureLabelFileName='frequencyLabel.csv';
%% Initialization for STFT Stastistics Features
STFT_Overlap=universalOverlap;
STFT_step= universalStep;
STFT_win=STFT_step./(1-STFT_Overlap); %Determine window based on overlap
STFT_FFTPeakNumber=10;
frequencySTFTStastisticsFeatureFileName='STFTFeatures.csv';
frequencySTFTStastisticsFeatureLabelFileName='STFTLabel.csv';
%% Initialization for CWT Stastistics Features
CWT_Overlap=universalOverlap;
CWT_step= universalStep;
CWT_win=CWT_step./(1-CWT_Overlap); %Determine window based on overlap
CWT_FFTPeakNumber=10;
frequencyCWTStastisticsFeatureFileName='CWTFeatures.csv';
frequencyCWTStastisticsFeatureLabelFileName='CWTFeaturesLabel.csv';
%% Create Folder to Store Feature Data
creatFolder(destinationFolder,folderName);
%% Start Reading and Extracting the Features
fprintf('\n3D Object Folder: %s',folderName);
for channel_i = 1:1%size(totalChannelFolders,1)
segmentChannelFolders =dir(strcat(originFolder,...
'\',folderName,'\',totalChannelFolders(channel_i).name,...
'\segments*'));
%Create Folder for Channel
creatFolder(strcat(destinationFolder,...
'\',folderName),totalChannelFolders(channel_i).name);
fprintf('\nChannel Name: %s',totalChannelFolders(channel_i).name);
for segmentFolder_i=2:2%1:size(segmentChannelFolders,1)
segmentFiles =dir(strcat(originFolder,...
'\',folderName,'\',totalChannelFolders(channel_i).name,...
'\',segmentChannelFolders(segmentFolder_i).name,...
'\segment*.csv'));
%Create Folder for Segment
creatFolder(strcat(destinationFolder,...
'\',folderName,'\',totalChannelFolders(channel_i).name),...
segmentChannelFolders(segmentFolder_i).name);
fprintf('\nSegment Name: %s',...
segmentChannelFolders(segmentFolder_i).name);
for segment_i=1:1%size(segmentFiles,1)
fileName=strcat(originFolder,'\',...
folderName,'\',totalChannelFolders(channel_i).name,...
'\',segmentChannelFolders(segmentFolder_i).name,...
'\',segmentFiles(segment_i).name);
%Create Folder for Segment
creatFolder(strcat(destinationFolder,...
'\',folderName,'\',totalChannelFolders(channel_i).name,'\',...
segmentChannelFolders(segmentFolder_i).name),...
segmentFiles(segment_i).name(1:end-4));
fprintf('\nSegment Number: %s',segmentFiles(segment_i).name);
%read the signals
data=csvread(fileName);
%% Extract and store Features
%timeFeatures
fileNameFull=strcat(destinationFolder,...
'\',folderName,'\',totalChannelFolders(channel_i).name,...
'\',segmentChannelFolders(segmentFolder_i).name,...
'\',segmentFiles(segment_i).name(1:end-4),'\',...
timeFeatureFileName);
labelNameFull=strcat(destinationFolder,...
'\',folderName,'\',totalChannelFolders(channel_i).name,...
'\',segmentChannelFolders(segmentFolder_i).name,...
'\',segmentFiles(segment_i).name(1:end-4),'\',...
timeFeatureLabelFileName);
extractFeatures_Time (fileNameFull,labelNameFull, ...
data,fs,Time_win, Time_step,Time_numLags,...
Time_orders,Time_bins,Time_peakNumber,...
Time_peakNumberEnvelop,Time_peakNumberGradient);
%frequency Features
fileNameFull=strcat(destinationFolder,...
'\',folderName,'\',totalChannelFolders(channel_i).name,...
'\',segmentChannelFolders(segmentFolder_i).name,...
'\',segmentFiles(segment_i).name(1:end-4),'\',...
frequencyFeatureFileName);
labelNameFull=strcat(destinationFolder,...
'\',folderName,'\',totalChannelFolders(channel_i).name,...
'\',segmentChannelFolders(segmentFolder_i).name,...
'\',segmentFiles(segment_i).name(1:end-4),'\',...
frequencyFeatureLabelFileName);
extractFeatures_frequency (fileNameFull,labelNameFull, ...
data, fs, Frequency_win,...
Frequency_step, Frequency_freqrange,...
Frequency_harmonicNumber,Frequency_numberOfMFCCCoef,...
Frequency_param);
%STFT Features
fileNameFull=strcat(destinationFolder,...
'\',folderName,'\',totalChannelFolders(channel_i).name,...
'\',segmentChannelFolders(segmentFolder_i).name,...
'\',segmentFiles(segment_i).name(1:end-4),'\',...
frequencySTFTStastisticsFeatureFileName);
labelNameFull=strcat(destinationFolder,...
'\',folderName,'\',totalChannelFolders(channel_i).name,...
'\',segmentChannelFolders(segmentFolder_i).name,...
'\',segmentFiles(segment_i).name(1:end-4),'\',...
frequencySTFTStastisticsFeatureLabelFileName);
extractFeatures_STFT (fileNameFull,labelNameFull, ...
data, fs, STFT_win, STFT_step, STFT_FFTPeakNumber);
%CWT Features
fileNameFull=strcat(destinationFolder,...
'\',folderName,'\',totalChannelFolders(channel_i).name,...
'\',segmentChannelFolders(segmentFolder_i).name,...
'\',segmentFiles(segment_i).name(1:end-4),'\',...
frequencyCWTStastisticsFeatureFileName);
labelNameFull=strcat(destinationFolder,...
'\',folderName,'\',totalChannelFolders(channel_i).name,...
'\',segmentChannelFolders(segmentFolder_i).name,...
'\',segmentFiles(segment_i).name(1:end-4),'\',...
frequencyCWTStastisticsFeatureLabelFileName);
extractFeatures_CWT(fileNameFull,labelNameFull, ...
data, fs, CWT_win, CWT_step, CWT_FFTPeakNumber);
end
end
end
end
%% Create Folders for storing the Feature
function []=creatFolder (destination,foldername)
if (exist(fullfile(destination,foldername),'dir')==0)
mkdir (destination, foldername);
end
end
function []=extractFeatures_Time (fileNameFull,labelNameFull, data,...
fs,Time_win, Time_step,Time_numLags,Time_orders,...
Time_bins,Time_peakNumber,Time_peakNumberEnvelop,...
Time_peakNumberGradient)
featureNames= DT_timeFeatures(Time_numLags,...
Time_orders,Time_bins,Time_peakNumber);
%TODO: Extract all the features for this csv file
features = DT_FeatureExtraction_Time(data, fs,...
Time_win, Time_step,Time_numLags,Time_orders,...
Time_bins,Time_peakNumber,Time_peakNumberEnvelop,...
Time_peakNumberGradient);
features=features';
% labels=1:8;
% labels=labels';
% Save the time features and labels
% DT_saveFeatureAndLabels(fileNameFull,...
% labelNameFull, featureNames, features,labels);
DT_saveFeatures(fileNameFull,featureNames, features);
end
function []=extractFeatures_frequency (fileNameFull,labelNameFull, ...
data, fs, win,...
step, freqrange,...
harmonicNumber,numberOfMFCCCoef,param)
featureNames= DT_frequencyFNames(harmonicNumber,numberOfMFCCCoef);
%TODO: Extract all the features for this csv file
features = DT_FeatureExtraction_Frequency(data,...
fs, win, step, freqrange,harmonicNumber,numberOfMFCCCoef,param);
features=features';
DT_saveFeatures(fileNameFull,featureNames, features);
end
function []=extractFeatures_STFT (fileNameFull,labelNameFull, ...
data, fs, win, step, FFTPeakNumber)
featureNames= DT_STFTNames(FFTPeakNumber);
%TODO: Extract all the features for this csv file
features = DT_STFTStatistics(data, fs, win, step, FFTPeakNumber );
features=features';
DT_saveFeatures(fileNameFull,featureNames, features);
end
function []=extractFeatures_CWT(fileNameFull,labelNameFull, ...
data, fs, win, step, FFTPeakNumber)
featureNames= DT_CWTNames(FFTPeakNumber);
%TODO: Extract all the features for this csv file
features = DT_CWTStatistics(data, fs, win, step, FFTPeakNumber);
features=features';
DT_saveFeatures(fileNameFull,featureNames, features);
end