Reduce kinect frame rate

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I'm working on a project in c# which I'm capturing color and depth frame from Kinect, then I'm doing some real-time process on them, kinect capturing with resolution 640*480 is 30FPS, but I don't need all the frames and I want to reduce the frame rate to be about 15FPS. Would you please help me with any instruction or sample code.

Thanks in advance :)

Posted 25-Dec-13 1:59am

niloufar.M

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[no name] 25-Dec-13 8:31am

Seems to be a constant, but until now I'm not completely clear about that. How is about only processing each second frame for a first guess?

niloufar.M 25-Dec-13 9:21am

Actually I need at least 10FPS. how can I process some and ignore the rest?

[no name] 25-Dec-13 9:26am

Google for "Setting kinect frame rate"

http://www.codeproject.com/Articles/248684/Kinect-Reception

http://msdn.microsoft.com/en-us/library/hh438998.aspx

I do not know the tech background of the kinect API. But I assume you will get some events for each frame. If this is the case it should be no problem to process only each second frame.

niloufar.M 25-Dec-13 9:58am

For sure I did google it, and yes there are events for each frame. there is a method setFrameRate but I need sample code for that as I cannot use it in my project and I don't know why, I think it is because some changes in kinect library in the latest release.

[no name] 25-Dec-13 10:08am

How is about the lazy approach:
A static int frameCount (or better a member in your "processing class"). Every time you recive a frame event you incerement it. And depending on an divisior at your choice you process the frame?

static int frameCount;
frameCount= frameCount++ % 2; // 2 is the divisor
if (frameCount == 0)
{
// Process
}

niloufar.M 26-Dec-13 1:36am

Thanks dear, It works :)

[no name] 26-Dec-13 7:41am

You are welcome. Happy coding ;)

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Abhijit Jana · Accepted Answer · 2014-01-01T23:39:00

Solution 1

You can change the frame interval by changing the value of ColorCameraSettings.FrameInterval property.

You have to make sure the AutoExposure property is set to false while working with FrameInterval; otherwise there will have no effects on the frames.
Use this like :

this.sensor.ColorStream.CameraSettings.FrameInterval = 12

I did a post over here couple of months back, How to control the frame interval of Kinect color data stream? [^]
Hope this will help you !

Posted 1-Jan-14 23:39pm

Abhijit Jana

Updated 18-Jan-14 2:08am

v2

Comments

niloufar.M 2-Jan-14 5:43am

Thanks dear Permalink, I solved this using the lazy approach of counting frame and just process some of them. your solution is also great :)

Abhijit Jana 2-Jan-14 5:48am

Yeah, I have read the complete post and your conversation. I thought to late you know that something available inbuilt with SDK :) . Have a great day my friend !

niloufar.M 2-Jan-14 6:55am

I'm new to this field. Thanks:) you too

niloufar.M 4-Jan-14 6:18am

Dear Abhijit thanks again, I'm trying to use your solution but I have this error: The feature is not supported by this version of the hardware. I'm working with SDK 1.7

Abhijit Jana 4-Jan-14 13:42pm

You need Kinect for Windows Device. I think you are using Kinect for Xbox Sensor.

niloufar.M 4-Jan-14 19:58pm

Yes :), thanks