Emgu CV Capture IP 摄像机人脸检测问题

Question

我正在使用 EmguCV 2.2.1.1150 连接网络摄像头工作正常，但是当我使用 RTSP 协议连接网络摄像头时，它只工作了几分钟并抛出异常，但使用网络摄像头时没有抛出异常。

我有这个代码：

private void btnDetectar_Click(object sender, EventArgs e)
{
    //grabber = new Capture(@"rtsp://user:pass@address:554/cam/realmonitor?channel=1&subtype=01?tcp"); // IP CAMERA
    grabber = new Capture(); // WEBCAM

    // Inicia la función FrameGrabber
    Application.Idle += new EventHandler(FrameGrabber);
    btnDetectar.Enabled = false;
}


void FrameGrabber(object sender, EventArgs e)
{
    try
    {
        // Obtiene el "frame" actual del dispositivo de captura
        currentFrame = grabber.QueryFrame().Resize(704, 480, Emgu.CV.CvEnum.INTER.CV_INTER_CUBIC);

        // Se convierte a escala de grises
        Image<Gray, byte> gray = currentFrame.Convert<Gray, byte>();

        // Detector facial
        MCvAvgComp[][] facesDetected = gray.DetectHaarCascade(
              face,
              1.2,
              10,
              Emgu.CV.CvEnum.HAAR_DETECTION_TYPE.DO_CANNY_PRUNING,
              new Size(gray.Width / 6, gray.Height / 6));

        // Acción para cada elemento detectado
        foreach (MCvAvgComp faces in facesDetected[0])
        {
            result = currentFrame.Copy(faces.rect).Convert<Gray, byte>().Resize(200, 200, Emgu.CV.CvEnum.INTER.CV_INTER_CUBIC);
            // dibuja rectangulo en rostro detectado                     
            currentFrame.Draw(faces.rect, new Bgr(Color.Red), 3);
        }

        picUser.Image = currentFrame.ToBitmap();

    }
    catch (Exception a)
    {
        String timeStamp = DateTime.Now.ToString();
        MessageBox.Show(" Hora: " + timeStamp + "\n Error: " + a.Message + "\n Stacktrace: " + a.StackTrace + "\n", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
    }
}

为什么会这样？

Answer 1

好吧，我必须将 Emgu CV 2.2.1.1150 更新到 3.0.0.2157，使用那个 Emgu CV 版本就可以了。

Emgu CV Capture IP 摄像机人脸检测问题

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