Main > Main Forum

A Closer Look At The AimTrak (with video goodness)

<< < (24/32) > >>

syph007:

--- Quote from: RandyT on October 22, 2009, 10:54:35 am ---
--- Quote from: syph007 on October 21, 2009, 02:20:29 pm ---If there was a bar at the bottom as well, the eye would have to aim forward, and we'd have to stand back alot further.

--- End quote ---

That's not true.  The camera doesn't always have to have a second set of markers in view simply because they are there.

The logic would go something like:

See both: Average position
See top only: aim is below
See bottom only: aim is above.

Obviously it's more involved at code time, but that would be the starting point.  This, BTW, is why you can get closer in the arcades.

RandyT

--- End quote ---

Yes but if it can only see top or bottom for part of the time, then how during that time is it anymore accurate than the current setup.

Edit: I suppose it woudl be somewhere in the middle of a 1 bar system and a 2 bar system (that the camera could always see).

RandyT:

--- Quote from: syph007 on October 21, 2009, 02:20:29 pm ---If there was a bar at the bottom as well, the eye would have to aim forward, and we'd have to stand back alot further.

--- End quote ---


--- Quote from: syph007 on October 22, 2009, 11:16:46 am ---Yes but if it can only see top or bottom for part of the time, then how during that time is it anymore accurate than the current setup.

--- End quote ---

Accuracy wasn't the issue you brought up.  You were concerned with distance.

AndyWarne:

--- Quote from: swamprat96 on October 22, 2009, 01:08:13 am ---Yes ok but- modern arcade guns use sensors all around the screen - and you can stand close. So whats different?

--- End quote ---

The Sega system which uses LEDs around the screen works on an entirely different principle. The LEDs are controlled by the game board. Its not a very accurate system, at least on the CRT Naomi cabs. Maybe better on later LCD.

brandon:

--- Quote from: RandyT on October 22, 2009, 10:54:35 am ---
--- Quote from: syph007 on October 21, 2009, 02:20:29 pm ---If there was a bar at the bottom as well, the eye would have to aim forward, and we'd have to stand back alot further.

--- End quote ---

That's not true.  The camera doesn't always have to have a second set of markers in view simply because they are there.

The logic would go something like:

See both: Average position
See top only: aim is below
See bottom only: aim is above.

Obviously it's more involved at code time, but that would be the starting point.  This, BTW, is why you can get closer in the arcades.

RandyT

--- End quote ---

Do you think that perhaps the LEDs in arcades also blink at different frequencies so that if the camera can only see one it know which one it is based on timing?  Sort of like a lightgun and CRT?  or maybe some of the "lightguns" in arcades are ultrasonic sort of like the Power Glove...

AndyWarne:

--- Quote from: brandon on October 22, 2009, 12:56:22 pm ---
Do you think that perhaps the LEDs in arcades also blink at different frequencies so that if the camera can only see one it know which one it is based on timing?  Sort of like a lightgun and CRT?  or maybe some of the "lightguns" in arcades are ultrasonic sort of like the Power Glove...

--- End quote ---

Yes. If larger numbers of LEDs were used, they would need to be controlled by the gun logic so the gun would know which LED(s) it is looking at. This means the simplicity of the design is lost because a controller board would be needed and/or a PC application to control everything, plus more wiring, driver circuitry etc.

Navigation

[0] Message Index

[#] Next page

[*] Previous page

Go to full version