Change font size
It is currently Thu Feb 21, 2019 8:06 am


Post a new topicPost a reply Page 1 of 1   [ 10 posts ]
Author Message
PostPosted: Fri Apr 10, 2009 7:59 pm 

Joined: Tue Apr 07, 2009 8:03 am
Posts: 33
We successfully used 4 Logitech Communicate MP cameras with iPi Recorder without any problems. Field of view is approximately 74.5 degrees.

Please note that there was a version of Logitech's driver software that didn't allow for manual control of exposure for more than 2 cameras connected at a time. There was an update that fixed this.

Without this manual control, your frame rates can vary based on how bright/dark something is, so you definitely want to set up the software for manual control for all four cameras.


Top
 Profile  
 
PostPosted: Sun Apr 12, 2009 12:20 pm 

Joined: Thu Apr 09, 2009 12:26 pm
Posts: 26
hi lightdog.

since you are using 4 cameras, can you post how good has your experience been so far capturing motion, personally I am working with 2 cameras, and I am somewhat chubby so, the results have not been ideal.

so I would like to know how it's going for you with a 4 camera rig !

Thank you.


Top
 Profile  
 
PostPosted: Sun Apr 12, 2009 9:25 pm 

Joined: Tue Apr 07, 2009 8:03 am
Posts: 33
Chuby,

I will post sample videos this week, if my schedule permits. I am also planning some tutorials, since I have been playing around with DMC for some time now, and have gotten good results.


Top
 Profile  
 
PostPosted: Sun Apr 12, 2009 10:59 pm 

Joined: Tue Apr 07, 2009 8:03 am
Posts: 33
Chuby,

I posted sample videos to the Video Gallery section of this site (under "Lightdog Films").

They show the results of a 4-camera mocap session done on a sound stage.


Top
 Profile  
 
PostPosted: Mon May 18, 2009 12:00 pm 

Joined: Tue Apr 07, 2009 8:03 am
Posts: 33
iwansuryo asked:

Quote:
I am using the same webcam (communicate MP) and latest software driver (v11.8), but it cannot be set higher than 320 x 240. At this resolution, I have to downscale the exposure parameter at about a half. Are there any other CPU specs that could make better result?


When you say that it cannot be set higher than 320x240, does this happen using iPi Recorder, or does this happen with Logitech's own video capture software? I just tested the MP using the latest drivers from Logitech, and I can select sizes like 960x720, etc., so you should also be able to select sizes larger than 320x240.

ipiRecorder version 1.0.1.32 Beta lets me select an image capture size of 640x480, in addition to 320x240.


Top
 Profile  
 
PostPosted: Mon May 18, 2009 11:14 pm 

Joined: Fri Apr 17, 2009 12:29 am
Posts: 20
I can select bigger size too with with Logitech's own video capture software. But iPi DMC only permit my video size up to 320 x 240, and get crash everytime I higher it up. But now I suspect the problem lie on the USB polling rate or other setting on the System Device.

iwan


Top
 Profile  
 
PostPosted: Sat May 23, 2009 7:18 am 
iPi Soft

Joined: Tue Mar 31, 2009 9:13 pm
Posts: 804
iwansuryo wrote:
I can select bigger size too with with Logitech's own video capture software. But iPi DMC only permit my video size up to 320 x 240, and get crash everytime I higher it up.


Do you have .NET Framework 3.5 sp1 installed? If you don't, it may be the cause of the problem. You can install it from http://www.microsoft.com/downloads/details.aspx?FamilyID=AB99342F-5D1A-413D-8319-81DA479AB0D7&displaylang=en.

We are investigating this problem. So far we cannot reproduce it on any of our PCs.


Top
 Profile  
 
PostPosted: Sat May 23, 2009 6:34 pm 

Joined: Fri Apr 17, 2009 12:29 am
Posts: 20
It's very funny. Suddenly I can use resolution on 640 x 480 on iPi Recorder. But now, everytime I go back to resolution 320 x 240, it always make the software crash! I investigate the USB transfer rate with USB performance analyzer. I think it happened because logitech quickcam driver sometimes makes the transfer rate for USB 2.0 peripheral unstable and become conflicting with iPi Recorder. I think it because their RightLight Technology will automatically compensate room with minimal lighting. For now, the safe way to use iPi Recorder is in the room with optimal day light from the windows because it will minimize the use of RightLight Technologywhich disturbing the USB transfer rate.

Thanks anyway

iwan


Top
 Profile  
 
PostPosted: Sun May 24, 2009 5:51 am 
iPi Soft

Joined: Tue Mar 31, 2009 9:13 pm
Posts: 804
We strongly recommend turning OFF the Logitech RightLight when recording for motion capture.


Top
 Profile  
 
PostPosted: Mon May 25, 2009 10:38 pm 

Joined: Fri Apr 17, 2009 12:29 am
Posts: 20
Logitech communicate mp using RightLight1 Technology which doesn't have control parameter, so it cannot be set on or off. The on off parameter appear only in webcam with RightLight2 like QuickCam Pro 9000.

iwan


Top
 Profile  
 
Display posts from previous:  Sort by  
Post a new topicPost a reply Page 1 of 1   [ 10 posts ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  


Powered by phpBB® Forum Software © phpBB Group
610nm Style by Daniel St. Jules of Gamexe.net