public static HandTracker Create(Device device = null)
{
IntPtr deviceHandle = IntPtr.Zero;
if (device != null && device.isValid)
deviceHandle = device.Handle;
IntPtr handle;
NiTE.throwIfError(HandTracker_create(out handle, deviceHandle));
HandTracker ut = new HandTracker(handle);
ut.handler_events = HandTracker_RegisterListener(handle, ut.internal_listener);
return ut;
}
void hTracker_onNewData(HandTracker hTracker)
{
if (!hTracker.isValid)
return;
using (HandTrackerFrameRef frame = hTracker.readFrame())
{
if (!frame.isValid)
return;
lock (image)
{
using (OpenNIWrapper.VideoFrameRef depthFrame = frame.DepthFrame)
{
if (image.Width != depthFrame.FrameSize.Width || image.Height != depthFrame.FrameSize.Height)
image = new Bitmap(depthFrame.FrameSize.Width, depthFrame.FrameSize.Height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
}
using (Graphics g = Graphics.FromImage(image))
{
g.FillRectangle(Brushes.Black, new Rectangle(new Point(0, 0), image.Size));
foreach (GestureData gesture in frame.Gestures)
if (gesture.isComplete)
hTracker.startHandTracking(gesture.CurrentPosition);
if (frame.Hands.Length == 0)
g.DrawString("Raise your hand", SystemFonts.DefaultFont, Brushes.White, 10, 10);
else
foreach (HandData hand in frame.Hands)
{
if (hand.isTracking)
{
Point HandPosEllipse = new Point();
PointF HandPos = hTracker.ConvertHandCoordinatesToDepth(hand.Position);
HandPosEllipse.X = (int)HandPos.X - 5;
HandPosEllipse.Y = (int)HandPos.Y - 5;
g.DrawEllipse(new Pen(Brushes.White, 5), new Rectangle(HandPosEllipse, new Size(5, 5)));
}
}
g.Save();
}
}
this.Invoke(new MethodInvoker(delegate()
{
fps = ((1000000 / (frame.Timestamp - lastTime)) + (fps * 4)) / 5;
lastTime = frame.Timestamp;
this.Text = "Frame #" + frame.FrameIndex.ToString() + " - Time: " + frame.Timestamp.ToString() + " - FPS: " + fps.ToString();
pb_preview.Image = image.Clone(new Rectangle(new Point(0, 0), image.Size), System.Drawing.Imaging.PixelFormat.Format24bppRgb);
}));
}
}
public static HandTracker Create(Device device = null)
{
IntPtr deviceHandle = IntPtr.Zero;
if (device != null && device.isValid)
{
deviceHandle = device.Handle;
}
IntPtr handle;
NiTE.throwIfError(HandTracker_create(out handle, deviceHandle));
HandTracker ut = new HandTracker(handle);
ut.handler_events = HandTracker_RegisterListener(handle, ut.internal_listener);
return(ut);
}
private void button1_Click(object sender, EventArgs e)
{
hTracker = HandTracker.Create();
btn_start.Enabled = false;
HandleError(hTracker.StartGestureDetection(GestureData.GestureType.HAND_RAISE));
hTracker.onNewData += new HandTracker.HandTrackerListener(hTracker_onNewData);
// FIXED Jun 2013
///* Because of incompatibility between current version of OpenNI and NiTE,
// * we can't use event based reading. So we put our sample in a loop.
// * You can copy OpenNI.dll from version 2.0 to solve this problem.
// * Then you can uncomment above line of code and comment below ones.
// */
//while (this.IsHandleCreated)
//{
// hTracker_onNewData(hTracker);
// Application.DoEvents();
//}
}
// ReSharper disable once ParameterHidesMember
private void HandTrackerOnNewData(HandTracker handTracker)
{
if (!handTracker.IsValid)
{
return;
}
HandTrackerFrameRef frame = handTracker.ReadFrame();
if (frame == null || !frame.IsValid)
{
return;
}
lock (this.image)
{
using (VideoFrameRef depthFrame = frame.DepthFrame)
{
if (this.image.Width != depthFrame.FrameSize.Width
|| this.image.Height != depthFrame.FrameSize.Height)
{
this.image = new Bitmap(
depthFrame.FrameSize.Width,
depthFrame.FrameSize.Height,
PixelFormat.Format24bppRgb);
}
}
using (Graphics g = Graphics.FromImage(this.image))
{
g.FillRectangle(Brushes.Black, new Rectangle(new Point(0, 0), this.image.Size));
foreach (GestureData gesture in frame.Gestures)
{
if (gesture.IsComplete)
{
handTracker.StartHandTracking(gesture.CurrentPosition);
}
}
if (frame.Hands.Length == 0)
{
g.DrawString("Raise your hand", SystemFonts.DefaultFont, Brushes.White, 10, 10);
}
else
{
foreach (HandData hand in frame.Hands)
{
if (hand.IsTracking)
{
Point handPosEllipse = new Point();
PointF handPos = handTracker.ConvertHandCoordinatesToDepth(hand.Position);
handPosEllipse.X = (int)handPos.X - 5;
handPosEllipse.Y = (int)handPos.Y - 5;
g.DrawEllipse(new Pen(Brushes.White, 5), new Rectangle(handPosEllipse, new Size(5, 5)));
}
}
}
g.Save();
}
}
this.Invoke(
new MethodInvoker(
delegate
{
this.fps = ((1000000 / (frame.Timestamp - this.lastTime)) + (this.fps * 4)) / 5;
this.lastTime = frame.Timestamp;
this.Text = @"Frame #" + frame.FrameIndex + @" - Time: " + frame.Timestamp + @" - FPS: "
+ this.fps;
this.pb_preview.Image = this.image.Clone(
new Rectangle(new Point(0, 0), this.image.Size),
PixelFormat.Format24bppRgb);
frame.Release();
}));
}
private bool Start()
{
RegisterFilter();
if (this.isIdle && this.broadcaster.HasServer())
{
MessageBox.Show(
@"Only one server is allowed.",
@"Multi-Server",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return false;
}
bool isSameDevice = this.currentDevice != null && this.currentDevice.IsValid
&& this.currentDevice.DeviceInfo.Uri == Settings.Default.DeviceURI;
bool isSameSensor = isSameDevice && this.currentSensor != null && this.currentSensor.IsValid
&& this.currentSensor.SensorInfo.GetSensorType()
== (Device.SensorType)Settings.Default.CameraType;
if (!isSameDevice)
{
if (Settings.Default.DeviceURI == string.Empty)
{
this.currentDevice = null;
MessageBox.Show(
@"Please select a device to open and then click Apply.",
@"Device Open",
MessageBoxButtons.OK,
MessageBoxIcon.Warning);
return false;
}
}
if (!isSameSensor)
{
if (Settings.Default.CameraType == -1)
{
this.currentDevice = null;
MessageBox.Show(
@"Please select a sensor to open and then click Apply.",
@"Sensor Create",
MessageBoxButtons.OK,
MessageBoxIcon.Warning);
return false;
}
}
if (!isSameDevice)
{
try
{
this.currentDevice = Device.Open(Settings.Default.DeviceURI);
}
catch (Exception ex)
{
this.currentDevice = null;
MessageBox.Show(
string.Format("Can not open selected Device. {0}", ex.Message),
@"Device Open",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return false;
}
}
if (!isSameSensor)
{
try
{
this.currentSensor =
this.currentDevice.CreateVideoStream((Device.SensorType)Settings.Default.CameraType);
this.currentSensor.OnNewFrame += this.CurrentSensorOnNewFrame;
}
catch (Exception ex)
{
this.currentSensor = null;
MessageBox.Show(
string.Format("Can not open selected Sensor from selected Device. {0}", ex.Message),
@"Sensor Create",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return false;
}
}
else
{
this.currentSensor.Stop();
}
VideoMode[] vmodes = this.currentSensor.SensorInfo.GetSupportedVideoModes().ToArray();
VideoMode selectedVideoMode = null;
switch (this.currentSensor.SensorInfo.GetSensorType())
{
case Device.SensorType.Color:
this.renderOptions = VideoFrameRef.CopyBitmapOptions.Force24BitRgb;
if (Settings.Default.Color_HD)
{
foreach (VideoMode vm in vmodes)
{
if (vm.Resolution.Width == 1280
&& (vm.Resolution.Height == 960 || vm.Resolution.Height == 1024))
{
if ((selectedVideoMode == null
|| (selectedVideoMode.Fps < vm.Fps
&& vm.DataPixelFormat < selectedVideoMode.DataPixelFormat))
&& vm.DataPixelFormat != VideoMode.PixelFormat.Jpeg
&& vm.DataPixelFormat != VideoMode.PixelFormat.Yuv422)
{
selectedVideoMode = vm;
}
}
}
this.isHd = selectedVideoMode != null;
if (!this.isHd)
{
MessageBox.Show(
@"This device doesn't support ~1.3MP resolution.",
@"HD Resolution",
MessageBoxButtons.OK,
MessageBoxIcon.Warning);
}
}
if (selectedVideoMode == null)
{
foreach (VideoMode vm in vmodes)
{
if (vm.Resolution == new Size(640, 480))
{
if ((selectedVideoMode == null
|| (selectedVideoMode.Fps < vm.Fps
&& vm.DataPixelFormat < selectedVideoMode.DataPixelFormat))
&& vm.DataPixelFormat != VideoMode.PixelFormat.Jpeg
&& vm.DataPixelFormat != VideoMode.PixelFormat.Yuv422)
{
selectedVideoMode = vm;
}
}
}
}
break;
case Device.SensorType.Depth:
this.renderOptions = VideoFrameRef.CopyBitmapOptions.Force24BitRgb
| VideoFrameRef.CopyBitmapOptions.DepthFillShadow;
if (Settings.Default.Depth_Fill)
{
if (this.cb_mirror.Enabled && this.cb_mirror.Checked)
{
this.renderOptions |= VideoFrameRef.CopyBitmapOptions.DepthFillRigthBlack;
}
else
{
this.renderOptions |= VideoFrameRef.CopyBitmapOptions.DepthFillLeftBlack;
}
}
if (Settings.Default.Depth_Invert)
{
this.renderOptions |= VideoFrameRef.CopyBitmapOptions.DepthInvert;
}
if (Settings.Default.Depth_Histogram)
{
this.renderOptions |= VideoFrameRef.CopyBitmapOptions.DepthHistogramEqualize;
}
foreach (VideoMode vm in vmodes)
{
if (vm.Resolution == new Size(640, 480))
{
if ((selectedVideoMode == null || selectedVideoMode.Fps < vm.Fps)
&& (vm.DataPixelFormat == VideoMode.PixelFormat.Depth1Mm
|| vm.DataPixelFormat == VideoMode.PixelFormat.Depth100Um))
{
selectedVideoMode = vm;
}
}
}
break;
case Device.SensorType.Ir:
this.renderOptions = VideoFrameRef.CopyBitmapOptions.Force24BitRgb;
foreach (VideoMode vm in vmodes)
{
if (vm.Resolution == new Size(640, 480))
{
if ((selectedVideoMode == null
|| (selectedVideoMode.Fps < vm.Fps
&& vm.DataPixelFormat < selectedVideoMode.DataPixelFormat))
&& vm.DataPixelFormat != VideoMode.PixelFormat.Jpeg
&& vm.DataPixelFormat != VideoMode.PixelFormat.Yuv422)
{
selectedVideoMode = vm;
}
}
}
break;
}
if (selectedVideoMode != null)
{
try
{
if (this.currentSensor.VideoMode.Fps != selectedVideoMode.Fps
|| this.currentSensor.VideoMode.DataPixelFormat != selectedVideoMode.DataPixelFormat
|| this.currentSensor.VideoMode.Resolution != selectedVideoMode.Resolution)
{
this.currentSensor.VideoMode = selectedVideoMode;
}
}
catch (Exception ex)
{
MessageBox.Show(
string.Format("Can not set active video mode to {0}. {1}", selectedVideoMode, ex.Message),
@"Sensor Config",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return false;
}
}
else
{
MessageBox.Show(
@"No acceptable video mode found.",
@"Sensor Config",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return false;
}
this.softMirror = Settings.Default.Mirroring;
if (Settings.Default.SmartCam)
{
try
{
if (!isSameDevice
|| (this.uTracker == null || this.hTracker == null || !this.uTracker.IsValid
|| !this.hTracker.IsValid))
{
this.uTracker = UserTracker.Create(this.currentDevice);
this.hTracker = HandTracker.Create(this.currentDevice);
this.hTracker.StartGestureDetection(GestureData.GestureType.HandRaise);
this.hTracker.OnNewData += this.NiTeOnNewData;
}
}
catch (Exception)
{
}
}
if (!HandleError(this.currentSensor.Start()))
{
this.Stop(false);
return false;
}
this.btn_stopstart.Text = @"Stop Streaming";
this.isIdle = false;
this.notify.Visible = true;
return true;
}
private void NiTeOnNewData(HandTracker handTracker)
{
try
{
if (Settings.Default.SmartCam && this.uTracker != null && this.uTracker.IsValid && this.hTracker != null
&& this.hTracker.IsValid)
{
using (UserTrackerFrameRef userframe = this.uTracker.ReadFrame())
{
using (HandTrackerFrameRef handframe = this.hTracker.ReadFrame())
{
foreach (GestureData gesture in handframe.Gestures)
{
if (!gesture.IsComplete)
{
continue;
}
PointF handPos = this.hTracker.ConvertHandCoordinatesToDepth(gesture.CurrentPosition);
short userId =
Marshal.ReadByte(
userframe.UserMap.Pixels + (int)(handPos.Y * userframe.UserMap.DataStrideBytes)
+ (int)(handPos.X * 2));
if (userId > 0)
{
this.activeUserId = userId;
}
}
handframe.Release();
}
if (this.activeUserId > 0)
{
UserData user = userframe.GetUserById(this.activeUserId);
if (user.IsValid && user.IsVisible && user.CenterOfMass.Z > 0)
{
RectangleF position = new RectangleF(0, 0, 0, 0);
PointF botlocation = this.uTracker.ConvertJointCoordinatesToDepth(user.CenterOfMass);
int pSize =
(int)
(Math.Max((int)((4700 - user.CenterOfMass.Z) * 0.08), 50)
* ((float)userframe.UserMap.FrameSize.Height / 480));
position.Y = (int)botlocation.Y - pSize;
position.Height = pSize;
position.X = (int)botlocation.X;
this.activePosition.X = position.X / userframe.UserMap.FrameSize.Width;
this.activePosition.Width = position.Width / userframe.UserMap.FrameSize.Width;
this.activePosition.Y = position.Y / userframe.UserMap.FrameSize.Height;
this.activePosition.Height = position.Height / userframe.UserMap.FrameSize.Height;
userframe.Release();
return;
}
}
userframe.Release();
}
}
}
catch (Exception)
{
}
this.activeUserId = 0;
}
