void frameListener(Frame frame) // the frame handler
{
currentFrame = frame;
double[] distances = new double[5];
i++;
if (i == Constants.framesInterval)
{
if (UpdateEnable == true)
{
distances = LeapEventListener.getDistances(frame);
OutputData1.Text = distances[0].ToString();
OutputData2.Text = distances[1].ToString();
OutputData3.Text = distances[2].ToString();
OutputData4.Text = distances[3].ToString();
OutputData5.Text = distances[4].ToString();
}
i = 0;
}
}
void TranslateInstance(Frame frame)
{
// Create a new Linear kernel
IKernel kernel = new Linear();
// Create a new Multi-class Support Vector Machine with one input,
// using the linear kernel and for four disjoint classes.
var machine = new MulticlassSupportVectorMachine(5, kernel, numOfClasses);
// Create the Multi-class learning algorithm for the machine
var teacher = new MulticlassSupportVectorLearning(machine, inputs, outputs);
// Configure the learning algorithm to use SMO to train the
// underlying SVMs in each of the binary class subproblems.
teacher.Algorithm = (svm, classInputs, classOutputs, i, j) =>
new SequentialMinimalOptimization(svm, classInputs, classOutputs);
// Run the learning algorithm
double error = teacher.Run(); // output should be 0
double[] distances = new double[5];
distances = LeapEventListener.getDistances(frame);
int decision = machine.Compute(distances); //svm AI
output.Text = output.Text + Char2SvmClass.class2svm(decision);
}
public MainMenu()
{
InitializeComponent();
//initializing listener and controller
this.controller = new Controller();
this.listener = new LeapEventListener(this);
controller.AddListener(listener);
}
public CountinuousTranslate()
{
InitializeComponent();
InitializeSVM();
InitilizeTimer();
this.controller = new Controller();
this.listener = new LeapEventListener(this);
controller.AddListener(listener);
}
private int i = 0; // listener interval
public SingleInstanceTranslate()
{
InitializeComponent();
InitializeSVM();
this.controller = new Controller();
this.listener = new LeapEventListener(this);
controller.AddListener(listener);
}
private int i = 0; // listener interval
public SignsDatabase()
{
InitializeComponent();
this.Focus();
InitializeList(); // initialize samples from database to a list
//initializing listener and controller
controller = new Controller();
listener = new LeapEventListener(this);
controller.AddListener(listener);
}
private void Timer_Tick(Object sender, EventArgs e) //timer for continuous check
{
if (currentFrame != null)
{
double[] velocityArr = LeapEventListener.getVelocity(currentFrame);
ts++;
if (velocityArr[0] < Constants.velocityThreshold && velocityArr[1] < Constants.velocityThreshold && velocityArr[2] < Constants.velocityThreshold && velocityArr[3] < Constants.velocityThreshold && velocityArr[4] < Constants.velocityThreshold)
{
if (LeapEventListener.isZeros(velocityArr) == false)
{
/*
* if (ts - timeStamp > Constants.positionStallThreshold / 10)
* {
* tempFrame = currentFrame;
* timeStamp = ts;
* TranslateInstance(tempFrame);
*
* }
*/
if (toExtract == false) // if the letter is not ready for extraction
{
tempFrame = currentFrame;
timeStamp = ts;
toExtract = true;
printPermission = true; // gives permission for the letter to be printed, prevent duplicates
}
if (ts - timeStamp > (Constants.positionStallThreshold / 10) / 2) //check if the user stayed in the same position 1 sec
{
tempFrame = currentFrame;
}
if (ts - timeStamp > Constants.positionStallThreshold / 10 && toExtract == true && printPermission == true) //check if the user stayed in the same position 1 sec
{
printPermission = false;
TranslateInstance(tempFrame);
timeStamp = 0;
ts = 0;
}
}
}
else//user switch to the next letter
{
toExtract = false;
printPermission = false;
// timeStamp = ts; // sahar
}
}
}
private void saveSapmle(Frame fr)
{
double[] distances = new double[5];
distances = LeapEventListener.getDistances(fr);
if (fr == null || LeapEventListener.isZeros(distances) == true)
{
MessageBox.Show("The frame is null.\n Try reconnecting the Leap device", "Application Error",
MessageBoxButtons.OKCancel, MessageBoxIcon.Warning);
}
else
{
if (MessageBox.Show("Do you want to save the sample as " + LettersCombo.Text + "?", "Signs DataSet",
MessageBoxButtons.YesNo, MessageBoxIcon.Question)
== DialogResult.Yes)
{
saveSampleToDB(LettersCombo.Text, distances[0], distances[1], distances[2], distances[3], distances[4]);
}
}
}
private void TranslateBtn_Click(object sender, EventArgs e)
{
double[] distances = new double[5];
distances = LeapEventListener.getDistances(currentFrame);
if (LeapEventListener.isZeros(distances) == true)
{
MessageBox.Show("The frame is null.\n Try reconnecting the Leap device", "Application Error",
MessageBoxButtons.OKCancel, MessageBoxIcon.Warning);
}
else
{
// Create a new Linear kernel
IKernel kernel = new Linear();
// Create a new Multi-class Support Vector Machine with one input,
// using the linear kernel and for four disjoint classes.
var machine = new MulticlassSupportVectorMachine(5, kernel, numOfClasses);
// Create the Multi-class learning algorithm for the machine
var teacher = new MulticlassSupportVectorLearning(machine, inputs, outputs);
// Configure the learning algorithm to use SMO to train the
// underlying SVMs in each of the binary class subproblems.
teacher.Algorithm = (svm, classInputs, classOutputs, i, j) =>
new SequentialMinimalOptimization(svm, classInputs, classOutputs);
// Run the learning algorithm
double error = teacher.Run(); // output should be 0
int decision = machine.Compute(distances); //svm AI
output.Text = output.Text + Char2SvmClass.class2svm(decision);
}
}
