public void Dispose()
{
if (IsDisposed)
{
return;
}
if (_analysisThread != null)
{
_analysisThread.Dispose();
_analysisThread = null;
}
if (_smoother != null)
{
_smoother.Dispose();
_smoother = null;
}
if (_mova != null)
{
_mova.Dispose();
_mova = null;
}
if (_isb != null)
{
_isb.Dispose();
_isb = null;
}
IsDisposed = true;
}
/// <summary>
/// Extracts the bouts from an instant speed trace
/// </summary>
/// <param name="isb">The instant speed trace</param>
/// <param name="speedThreshold">Speeds below this threshold will be set to 0</param>
/// <param name="minFramesPerBout">For a movement to be called a bout we require at least this number of frames</param>
/// <param name="maxFramesAtPeak">Bouts should have clearly defined peaks. Bouts with a peak longer than this number get rejected</param>
/// <param name="frameRate">The framerate used for acquisition</param>
/// <returns>A queue of bout structures describing every bout</returns>
public Queue <Bout> DetectBouts(InstantSpeedBuffer isb, float speedThreshold, int minFramesPerBout, int maxFramesAtPeak, int frameRate)
{
if (IsDisposed)
{
throw new ObjectDisposedException(this.ToString());
}
if (_isCalc == null)
{
_isCalc = new InstantSpeedBuffer(isb.Size.width);
}
else if (_isCalc.Size.width != isb.Size.width)
{
_isCalc.Dispose();
_isCalc = new InstantSpeedBuffer(isb.Size.width);
}
Queue <Bout> retval = new Queue <Bout>();
int i = 0;
//threshold the speed trace - copy result into our calculation buffer
ip.ippiThreshold_LTVal_32f_C1R(isb.Buffer, isb.Stride, _isCalc.Buffer, _isCalc.Stride, isb.Size, speedThreshold, 0);
while (i < _isCalc.Size.width)
{
if (_isCalc[i] == 0)
{
i++;
continue;
}
else//found potential bout start since speed above threshold
{
int peaklength = 0;
Bout b = new Bout();
b.BoutStart = i;
b.PeakSpeed = _isCalc[i];
b.BoutPeak = i;
b.TotalDisplacement = _isCalc[i] / frameRate;
//loop over following frames collecting all frames that belong to the bout
while (i < _isCalc.Size.width && _isCalc[i] > 0)
{
if (_isCalc[i] > b.PeakSpeed)
{
b.PeakSpeed = _isCalc[i];
b.BoutPeak = i;
peaklength = 0; //new peakspeed found, reset peaklength
}
else if (_isCalc[i] == b.PeakSpeed) //another frame with the same speed as our peak
{
peaklength++;
}
b.TotalDisplacement += _isCalc[i] / frameRate;
i++;
}
b.BoutEnd = i - 1;
//check our bout criteria
if ((b.BoutEnd - b.BoutStart + 1) >= minFramesPerBout && peaklength <= maxFramesAtPeak)
{
//we have a valid bout
if (b.BoutStart == b.BoutPeak)
{
b.BoutStart--;
}
retval.Enqueue(b);
}
}//found potential bout
}
return(retval);
}