logitech pan tilt

[jeralex]

I have a Logitech Quickcam Orbit AF that I am trying to control using an evaluation copy of Vision Acquisition 2009. The IMAQdx driver is installed and MAX is recognizing the camera. The problem is that I can't control pan or tilt. I've tried to control them using MAX and IMAQdx examples. I can control focus and all of the other attributes.

[BlueCheese]

We've played with the Quickcam Orbitz AF before and I think the trick is that the pan/tilt controls are not absolute. Each write to those attributes will move +/- some number of increments. To get absolute positioning you need to do a trick like Logitech's software does to first move it to one extreme of both the pan/tilt controls and then move it by various increments keeping track of your current position.

The Logitech 9000 series seems to work a bit nicer in this regard because it just uses a large sensor and does the pan/tilt by shifting around a smaller AOI around the sensor. In that camera the pan/tilt are absolute controls.

Eric 

[jeralex]

Thanks for getting back to me Eric. The problem is that the only time that I can get the camera to move is when I go back to 0. I'm using the command CameraAttributes::Pan:: Value and using an integer as the value. When I set the value to 0 the camera will go all the way in one direction and then back to the 0 position. If I set value to any other number, nothing happens. As I said before the same thing happens in MAX, although I can control all of the other attributes. I have the Logitech software loaded and I can control the Pan/Tilt using it.

[jeralex · Accepted solution]

I found the problem. Well, at least I got it to work. I was using the latest version of the Quickcam driver (12.10.1113.0000). When I put an older version of the driver in (11.80.1065.0), it started working.

[cld2005]

could you please be mo specific about the method you used to control the pan and tilt. Which vi is used to control the motion?

[Joe D.]

Hi Cld2005,

They used the logitech software to control the pan tilt.

[BlueCheese]

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@Joe D. wrote:

Hi Cld2005,

They used the logitech software to control the pan tilt.

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Hi Joe,

I'm not sure where you got this information but that doesn't match with had been posted.

The Quickcam driver exposes Pan/Tilt controls via DirectShow to IMAQdx. They show up as attributes (similar to exposure time and gain controls) that can be controlled in MAX or in LabVIEW programatically using property nodes. You can get more details of this in the IMAQdx help or some of the many guides available online (such as http://decibel.ni.com/content/docs/DOC-9038 )

The original poster solved his problem by downgrading the version of the driver used. Presumably Logitech had some bug in their DirectShow interface that was preventing it from working correctly (I'm not sure, as I have not had issues with these cameras in the past).

Eric

[cld2005]

thank you ! i have already been able to control the pan and tilt. But the new problem is i can just control one of them in a time which means if i change pan and tilt at the same time there will be an error! If you reset the pan and tilt from the logitech driver you would notice that the driver change the pan and tilt at the same time! can any of you do this as well?

[cld2005]

i found that problem as well. so i am using 11.80 something now!

[alvertosk]

Hi, so I am a real newbie on this but I also got the camera with the vision part working but I have no idea how to even make a vi or an interface to control pan, tilt with the AF Orbit logitech cam
Any ideas or links I would highly appreciate them!

Thanks for your time.......

Oh I'm using the vision module of 2011!