使用Emgu CV的Capture = New Capture()连接IP摄像机

Question

使用Visual 2008和Emgu CV，我可以在我的PC上捕捉网络摄像头的流。我想做的是连接到IP摄像机，知道它的URL，使用Capture = New ().

下面是我的代码：

Imports Emgu.CV
Imports Emgu.CV.Util
Imports Emgu.CV.Structure

Public Class Form1

Dim capturez As Capture = New Capture("rtsp://[IP Address]/mpeg4/media.amp")

Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick

    Dim imagez As Image(Of Bgr, Byte) = capturez.QueryFrame()
    PictureBox1.Image = imagez.ToBitmap()

End Sub

End Class

我得到以下错误:无法从rtsp://IP地址/mpeg4 4/media.amp创建捕获

是否可以使用Capture = New来完成这个任务？如果没有，他们还有其他方法吗？

谢谢。

Answer 1

这是我最后使用的解决方案。它只适用于JPEG网络摄像机(不是MJPEG)，不需要EmguCV。

'Connect To Webcam ----------------------------------------------------------------------
    Dim NumberFrames As Integer = 1
    Dim imgNum = Convert.ToString(FrameNumber)
    Dim sourceURL As String = ("http://91.142.238.200/record/current.jpg?rand=" + imgNum)
    'create HTTP request
    Dim req As HttpWebRequest = HttpWebRequest.Create(sourceURL)
    'get response
    Dim res As HttpWebResponse = req.GetResponse
    'get response stream
    Dim reader As New StreamReader(res.GetResponseStream())
    'read data from stream
    Dim img As Image = Image.FromStream(res.GetResponseStream())
    'get bitmap
    PictureBox1.Image = img
    'Increment frame
    FrameNumber = FrameNumber + 1
    '-----------------------------------------------------------------------------------------

Answer 2

这个相机有ip用户名和密码吗？如果你尝试这样的方法：

Imports Emgu.CV
Imports Emgu.CV.Util
Imports Emgu.CV.Structure

Public Class Form1

Dim capturez As Capture = New Capture("rtsp://username:password@[IP Address]/mpeg4/media.amp")

Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick

Dim imagez As Image(Of Bgr, Byte) = capturez.QueryFrame()
PictureBox1.Image = imagez.ToBitmap()

End Sub


End Class