private void Detect()
{
//Here is where we try to detect the marker
if (isDetecting || !isInitialized)
{
return;
}
isDetecting = true;
try
{
// Update buffer size
var pixelWidth = photoCamera.PreviewResolution.Width;
var pixelHeight = photoCamera.PreviewResolution.Height;
if (buffer == null || buffer.Length != pixelWidth * pixelHeight)
{
buffer = new byte[System.Convert.ToInt32(pixelWidth * pixelHeight)];
}
// Grab snapshot for the marker detection
photoCamera.GetPreviewBufferY(buffer);
//Detect the markers
arDetector.Threshold = 100;
DetectionResults dr = arDetector.DetectAllMarkers(buffer, System.Convert.ToInt32(pixelWidth), System.Convert.ToInt32(pixelHeight));
GameState.getInstance().Detect(dr);
}
finally
{
isDetecting = false;
}
}
private void Detect()
{
if (isDetecting || !isInitialized)
{
return;
}
if (null == videoCapture)
{
return;
}
isDetecting = true;
try
{
byte[] buffer = null;
if (config.GetBool("CameraSetup", "Mirror"))
{
buffer = videoCapture.BufferGray; // the gray buffer is mirrored by default
}
else
{
buffer = Utils.FlipHorizontalGrayscale(videoCapture.BufferGray, videoCapture.GrayWidth, videoCapture.GrayHeight);
}
//Detect the markers
var results = arDetector.DetectAllMarkers(buffer, videoCapture.GrayWidth, videoCapture.GrayHeight);
DetectionResults = results;
}
finally
{
isDetecting = false;
}
}
private void Detect()
{
if (isDetecting || !isInitialized)
{
return;
}
isDetecting = true;
var stopwatch = Stopwatch.StartNew();
try
{
// Update buffer size
var pixelWidth = (int)photoCamera.PreviewResolution.Width;
var pixelHeight = (int)photoCamera.PreviewResolution.Height;
if (buffer == null || buffer.Length != pixelWidth * pixelHeight)
{
buffer = new byte[pixelWidth * pixelHeight];
// Create constant transformations instances
// Center at origin of the 256x256 controls
centerAtOrigin = Matrix3DFactory.CreateTranslation(-128, -128, 0);
// Swap the y-axis and scale down by half
scale = Matrix3DFactory.CreateScale(0.5, -0.5, 0.5);
// Viewport transformation
viewport = Matrix3DFactory.CreateViewportTransformation(pixelWidth, pixelHeight);
matrix3DProjection = new Matrix3DProjection();
Txt.Projection = matrix3DProjection;
Img.Projection = matrix3DProjection;
}
// Grab snapshot
photoCamera.GetPreviewBufferY(buffer);
// Detect
var dr = arDetector.DetectAllMarkers(buffer, pixelWidth, pixelHeight);
// Draw the detected squares
//bitmap.Clear();
//ViewportOverlay.Source = bitmap;
// Calculate the projection matrix
if (dr.HasResults)
{
// Calculate the complete transformation matrix based on the first detection result
var world = centerAtOrigin * scale * dr[0].Transformation;
// Calculate the final transformation matrix by using the camera projection matrix
var m = Matrix3DFactory.CreateViewportProjection(world, Matrix3D.Identity, arDetector.Projection, viewport);
// Apply the final transformation matrix to the TextBox
matrix3DProjection.ProjectionMatrix = m;
//// Draw the detected squares
//foreach (var r in dr)
//{
// bitmap.DrawQuad((int)r.Square.P1.X, (int)r.Square.P1.Y, (int)r.Square.P2.X, (int)r.Square.P2.Y, (int)r.Square.P3.X, (int)r.Square.P3.Y, (int)r.Square.P4.X, (int)r.Square.P4.Y, Colors.Red);
//}
}
}
finally
{
isDetecting = false;
stopwatch.Stop();
TxtDiag.Text = string.Format("{0} ms", stopwatch.ElapsedMilliseconds);
}
}