public bool IsCorrectGesture(string gestureName, Body[] record)
{
GestureData gestureData = gestureIndex.GestureDB[gestureName];
List <string> files = new List <string>();
foreach (string s in Directory.EnumerateFiles(@"..\..\..\..\database\"))
{
if (s.Contains(gestureData.fileName))
{
files.Add(s);
}
}
DTWComputer computer = new DTWComputer();
float sum = 0;
for (int i = 0; i < files.Count; i++)
{
sum = 0;
BodyManager reference = new BodyManager();
reference.LoadBodyData(files[i]);
computer.ComputeDTW(reference.RecordedDataAsArray, record);
foreach (BoneName boneName in Enum.GetValues(typeof(BoneName)))
{
for (int k = 0; k < 4; k++)
{
sum += computer.Result.Data[Mapper.BoneIndexMap[boneName]].BestCost[k];
}
}
// we need a confidence threshold... getting the max difference between samples is not
// the best solution... for now * 2 seems to work
if (sum < gestureData.threshold * 2)
{
Console.WriteLine("correct gesture threshold: " + sum);
closestSample = reference;
return(true);
}
}
Console.WriteLine("incorrect gesture threshold: " + sum);
closestSample = new BodyManager();
closestSample.LoadBodyData(files[0]);
return(false);
}
// to refactor
private float ComputeDTWThreshold()
{
float maxSum = 0;
List <string> files = new List <string>();
foreach (string s in Directory.EnumerateFiles(@"..\..\..\..\database\"))
{
if (s.Contains(gestureDB[newGesture].fileName))
{
files.Add(s);
}
}
DTWComputer computer = new DTWComputer();
for (int i = 0; i < files.Count; i++)
{
BodyManager reference = new BodyManager();
reference.LoadBodyData(files[i]);
for (int j = 0; j < files.Count; j++)
{
float sum = 0;
FileStream recordFileStream = new FileStream(files[j], FileMode.Open, FileAccess.Read);
BodyManager record = new BodyManager();
record.LoadBodyData(files[j]);
computer.ComputeDTW(reference.RecordedDataAsArray, record.RecordedDataAsArray);
foreach (BoneName boneName in Enum.GetValues(typeof(BoneName)))
{
for (int k = 0; k < 4; k++)
{
sum += computer.Result.Data[Mapper.BoneIndexMap[boneName]].BestCost[k];
}
}
if (sum > maxSum)
{
maxSum = sum;
}
}
}
maxSum *= 1.5f;
Console.WriteLine("threshold will be " + maxSum);
return(maxSum);
}
