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| [Theory] Custom PC Lightgun With PS3Eye\Webcam IR tracking and IR laser pen |
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| voradori:
Hi guys I've found an very interesting video Author uses PSeye looking at display, some software making transform projection from display edges on camera image to the screen coordinates and a gun with IR laser pointer and mouse parts inside. This system allows a perfect line-of-sight calibration and no need to recalibrate everything every time when changing distance or angle. No need to worry about screen sizes, distances and other things we are used to with Aimtraks, Wiimotes or other pointers. There's no details from uploader, so any ideas how can we reproduce this? It's basically clear that PSEye here may need modifying with IR filter, to make it see only the point from laser, and that we must solder custom buttons to mouse mainboard instead of its native. And I don't recognize the software he's using. There's big chance that it's his own implementation, but may be someone can recognize it oh have an idea what can be used here? Personaly, I think the same result can be achieved by using something like FreeTrack, but it needs modification for screen projections. Another thing is that such setup allows only one gun usung that way. Otherwise, the software should somehow differ the points, but it doesn't look that way. So, please, share you ideas here, it may be a very interesting discussion |
| BadMouth:
Looks like it works well. Not convinced tracking is perfect, but it looks better than other demos and the required distance to screen is definitely better. I've always thought tracking laser dots would remove a lot of the problems, but never thought about an IR one. I've seen laser based systems at (real) gun shows marketed for law enforcement training, but the screens always look washed out so the camera can see the dot. Unlimited ammo and spraying bullets on house of the dead is just wrong. Those smaller first level enemies should have been one shot one kill. The zombies are only two shots. Playing like a positional gun game hurts the demo. |
| Titchgamer:
Wont let me load the video atm but I will look on laptop later. My only real concern with this without looking at the video would be the laser itself. |
| Howard_Casto:
That's interesting. A wiimote could probably pull that off with an appropriate lens affixed to the front. How would you track player 2 though? UV laser and another camera? Ps eyes are dirt cheap if you know where to look. I wonder about the math involved to straighten out that trapezoid.... that's the kind of stuff I always stumble on. *edit* I feel the need to point out that on an arcade cabs we would have more obstacles to get this working. A bezel would probably diffuse the laser which could cause issues. The camera might also have problems seeing over the controls on the control panel... unless it was mounted from a pole attached to the top of the cab or something. |
| BadMouth:
I can see it working with the camera mounted under the marquee and either no monitor glass or DK style will the camera behind the monitor glass. In my theoretical setup with regular lasers (which I do not have the skills to execute), P1 would use a red laser and P2 would use a green laser. That puts us back to needing dark or washed out picture for the dots to stand out though. |
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