Search found 26 matches

by LamarLatrell
Fri Mar 06, 2015 2:21 am
Forum: General OptiTrack Support
Topic: V120 PCB USB plug - change to right angle
Replies: 2
Views: 3189

Re: V120 PCB USB plug - change to right angle

Well, thanks anyway...

I'll just direct solder if I go ahead with it ;)
by LamarLatrell
Wed Mar 04, 2015 4:10 pm
Forum: Camera SDK
Topic: Implications of not using frame->Release();
Replies: 2
Views: 4067

Re: Implications of not using frame->Release();

Fair logical skills there Steven - you're quite correct! Yes, the line was copied to an earlier spot in the code, right after the frame was last used. I can only assume I must have done it on one of my very late nights ... and commented out the original (which was at the end of the full loop) as a '...
by LamarLatrell
Wed Mar 04, 2015 7:02 am
Forum: Camera SDK
Topic: Implications of not using frame->Release();
Replies: 2
Views: 4067

Implications of not using frame->Release();

hello, Strange discovery in my code this evening - the line: frame->Release(); was commented out ... but with no apparent issues in my program. However, upon uncommenting it my program will stall almost immediately. No idea why or how it was commented, and unfortunately no idea when . Line count is ...
by LamarLatrell
Tue Mar 03, 2015 10:46 pm
Forum: General OptiTrack Support
Topic: V120 PCB USB plug - change to right angle
Replies: 2
Views: 3189

V120 PCB USB plug - change to right angle

The perpendicular angle on the USB receptacle is turning out to be a bit bothersome with my project (often getting hit, or taking up room once I put protection in place). I'd like to de-solder it (I have access to some nice Pace gear to do this properly) and replace it with one that is horizontally ...
by LamarLatrell
Wed Feb 18, 2015 4:29 pm
Forum: General OptiTrack Support
Topic: 850nm IR LED ring light suggestions
Replies: 2
Views: 4450

Re: 850nm IR LED ring light suggestions

I found a spec of the Osram LED you use in an older optitrack part in a previous thread - that unit isn't available locally, but I found another Osram part, more powerful per LED, but I think I can link less together - as long as I've got at least 3, reckon I'm creating the beginnings of a ring ligh...
by LamarLatrell
Sun Feb 15, 2015 4:06 am
Forum: General OptiTrack Support
Topic: 850nm IR LED ring light suggestions
Replies: 2
Views: 4450

850nm IR LED ring light suggestions

Hello all, For a V120 do you have any suggestions for off-the-shelf 850nm IR LED ring lights ? Preferably the power electronics would be separable from the ring itself (so as to keep weight down on the arm of a facial motion capture helmet). The ring would be minimal in mass also. Power and focus wo...
by LamarLatrell
Tue Feb 10, 2015 4:09 pm
Forum: Camera SDK
Topic: Multiple V120 cameras
Replies: 3
Views: 4236

Re: Multiple V120 cameras

Great, Also, three reasons why having an inaccuracy of half a frame (forward or backward) won't affect results in my case: ~ Within the screen resolutions I'm working with and the subsets of that resolution, I don't expect markers to move far within the temporal periods the V120 affords. ~ The actua...
by LamarLatrell
Sun Jan 18, 2015 3:57 pm
Forum: Camera SDK
Topic: Multiple V120 cameras
Replies: 3
Views: 4236

Multiple V120 cameras

Hello Dustin and Doug It's clear to me that in using two V120's I could greatly increase the resolution and accuracy of motion data for certain parts of the face. The simpleCameraTest example includes an Optitrack HubList list - is an Optitrack hub required or can I concurrently access individual V1...
by LamarLatrell
Thu Jan 15, 2015 11:14 pm
Forum: Camera SDK
Topic: Setting and understanding framerates V120
Replies: 22
Views: 23637

Re: Setting and understanding framerates V120

Quick update: got this working now with threads - one loop running the camera capture and processing at 120fps (woohoo!) and another taking a frame for the screen as fast as it can (63fps or so...

Very good :D
by LamarLatrell
Mon Jan 12, 2015 2:38 pm
Forum: Camera SDK
Topic: Setting and understanding framerates V120
Replies: 22
Views: 23637

Re: Setting and understanding framerates V120

Hi Dustin and Doug Ok, I've done a complete timing run down of every line in my loop for your sample and both my openCV basic loop and also DLIB (another great vision processing library). Discovered in all three cases that the timing hit occurs in the line where the image is displayed to screen. Rem...