Problems running GreyscaleSample

[DanielTracker]

Hi

I tried to run the GreyscaleSample. But if I start test.exe a window appears. Then nothing happens.
I tried to compile the source again but there are some files in the project included that are not in the zip file (convert.c e.g.).

I removed all files from the project and added all the files i got from the zip file. Then I get

error C2065: 'NP_OPTION_VIDEO_TYPE' : undeclared identifier

I guess there are some files missing.

Could someone help me?

[VincentG]

What type of camera are you using?

Which vewrsion of the Optitrack SDK do you have installed?

Are you using a USB hub, or are you connected directly to the system?

Is this a desktop, or laptop system?

What OS do you have installed?

You might also want to look at the grayscale FAQ entry.

[DanielTracker]

Hi

I'm not sure about the type of camera I am using. It seems to be an older version of the SLIM:V100. But it only has a resolution of 355x290. A sample programm shows the Model as 0x100800ab.

The version of the driver I installed is 11/09/2005,3.2.28.0

I am using Win 2k on a desktop system

The cam is directly conected to the system. I can run the programm OptiTrack Sample and it works.

But my problem is, that i only want to use the camera as a "normal" greyscale cam and I don't know how to access the raw pixel data. Thats why I wanted to have a look at the Greyscale excample. But as I mentioned there are some files missing.

[DanielTracker]

Ok it is running now.

There is a Bandpass-filter in the Camera. If I put a IR-LED in front of the camera it is tracked and labeled with 0. It looks like the camera is tracking this as an Object. But I want the raw greyscale data. It tried to set the options like

//== Set Grayscale Mode========================----
camera->SetOption(NP_OPTION_VIDEO_TYPE , (CComVariant) 1 );

But nothing changes in the picture. I tried to change a lot of options but nothing happens. If I comment the line

camera->SetOption(NP_OPTION_TEXT_OVERLAY_OPTION,(CComVariant) 255);

then there are no labes in the picture but the camera keeps on tracking my LED.

Please let me know if you need the whole code.

[Birch]

Can you post the serial number of the camera? It sounds like you might have a FLEX-3 camera, which is a discontinued model that does not support grayscale.

The FLEX-3s look like this :
[image]http://www.naturalpoint.com/optitrack/i ... _flex3.gif[/image]

[DanielTracker]

HI

I can't see details in your posted picture but it looks like my camera The serial is 37572. Are there any documents regarding this cameras (options e.g.)?

[Birch]

Yes, camera serial 37572 is an OptiTrack Flex 3.

You can check the most recent version of the OptiTrack SDK manual for feature compatibility.
http://www.naturalpoint.com/optitrack/s ... ml#manuals

If a given SetOption feature is not supported by the camera the SDK will typically return the NP_E_DEVICE_NOT_SUPPORTED error code.

Here are the specs :

• Frame Rate : 120hz
• Resolution : 355 x 288
• Interface : USB 1.1Full Speed, mini USB � B
• Mounting : Standard tripod �-20 thread
• Latency : 9ms
• Power : 5V @350ma, including IR LED Ring
• LED Ring : IR @ 850nm, 8 LEDs 45degree FOV, removable
• Status LEDs : red LEDs with PC control
• Lenses : 33degrees, included, 57 degrees Horzontal (optional)
• Lens mount : M12 Lens Holder (optional)
• Optical Filter : IR 800nm bandpass, removable

And here are the features :

• preprocessed video : yes
• grayscale video : no
• preprocessed objects video : no
• led intensity control : no
• led strobed mode : no
• threshold control : yes
• exposure control : no
• frame rate control : no