private bool isIntermediaryFrameValidGestureFrame(GESTURE gesture, GestureDatabase gestureDatabase)
{
Skeleton currentSkeleton;
AppropriateJointInfo currentAptJointInfo;
gestureDatabase.getLastRecord(out currentSkeleton, out currentAptJointInfo);
Vector2D currentElbowShoulder = new Vector2D((currentAptJointInfo.shoulderRightPos.X - currentAptJointInfo.elbowRightPos.X),
(currentAptJointInfo.shoulderRightPos.Y - currentAptJointInfo.elbowRightPos.Y));
Vector2D currentElbowHand = new Vector2D((currentAptJointInfo.handRightPos.X - currentAptJointInfo.elbowRightPos.X),
(currentAptJointInfo.handRightPos.Y - currentAptJointInfo.elbowRightPos.Y));
double angle = currentElbowShoulder.angleTo(currentElbowHand);
switch (gesture)
{
case GESTURE.CONST_LEFT:
{
if (currentAptJointInfo.shoulderCenterPos.Y > currentAptJointInfo.handRightPos.Y &&
currentAptJointInfo.shoulderCenterPos.Y > currentAptJointInfo.elbowRightPos.Y &&
currentAptJointInfo.handRightPos.X < currentAptJointInfo.elbowRightPos.X &&
currentElbowShoulder.cpsign(currentElbowHand) > 0 &&
angle >= CONST_LEFT_GESTURE_MIN_THETA - THRESHOLD_ANGLE_DEFLECTION &&
angle <= CONST_LEFT_GESTURE_MAX_THETA + THRESHOLD_ANGLE_DEFLECTION)
{
return true;
}
}
break;
case GESTURE.CONST_RIGHT:
{
if (
currentAptJointInfo.shoulderCenterPos.Y > currentAptJointInfo.elbowRightPos.Y &&
currentAptJointInfo.elbowRightPos.Y > currentAptJointInfo.handRightPos.Y &&
currentAptJointInfo.handRightPos.X > currentAptJointInfo.elbowRightPos.X &&
currentElbowShoulder.cpsign(currentElbowHand) < 0 &&
angle >= CONST_RIGHT_GESTURE_MIN_THETA - THRESHOLD_ANGLE_DEFLECTION &&
angle <= CONST_RIGHT_GESTURE_MAX_THETA + THRESHOLD_ANGLE_DEFLECTION)
{
return true;
}
}
break;
}
return false;
}
private bool isHandAngleDeflectionWithInBounds(GESTURE gesture, GestureDatabase gestureDatabase)
{
Skeleton skeleton;
AppropriateJointInfo aptJoint;
switch (gesture)
{
case GESTURE.CONST_LEFT:
{
gestureDatabase.getLastRecord(out skeleton, out aptJoint);
Vector2D elbowShoulder = new Vector2D(aptJoint.shoulderRightPos.X - aptJoint.elbowRightPos.X, aptJoint.shoulderRightPos.Y - aptJoint.elbowRightPos.Y);
Vector2D elbowHand = new Vector2D(aptJoint.handRightPos.X - aptJoint.elbowRightPos.X, aptJoint.handRightPos.Y - aptJoint.elbowRightPos.Y);
if (elbowShoulder.cpsign(elbowHand) > 0 &&
elbowShoulder.angleTo(elbowHand) >= CONST_LEFT_GESTURE_MIN_THETA - THRESHOLD_ANGLE_DEFLECTION &&
elbowShoulder.angleTo(elbowHand) <= CONST_LEFT_GESTURE_MAX_THETA + THRESHOLD_ANGLE_DEFLECTION)
{
return true;
}
break;
}
case GESTURE.CONST_RIGHT:
{
gestureDatabase.getLastRecord(out skeleton, out aptJoint);
Vector2D elbowShoulder = new Vector2D(aptJoint.shoulderRightPos.X - aptJoint.elbowRightPos.X, aptJoint.shoulderRightPos.Y - aptJoint.elbowRightPos.Y);
Vector2D elbowHand = new Vector2D(aptJoint.handRightPos.X - aptJoint.elbowRightPos.X, aptJoint.handRightPos.Y - aptJoint.elbowRightPos.Y);
if (elbowShoulder.cpsign(elbowHand) < 0 &&
elbowShoulder.angleTo(elbowHand) >= CONST_RIGHT_GESTURE_MIN_THETA - THRESHOLD_ANGLE_DEFLECTION &&
elbowShoulder.angleTo(elbowHand) <= CONST_RIGHT_GESTURE_MAX_THETA + THRESHOLD_ANGLE_DEFLECTION)
{
return true;
}
break;
}
}
return false;
}
