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84

answers:

4

Are there any hardware solutions or something, where I can start, for the task I describe here? For example, I have a smartphone with a built-in camera and a special sensor attached (the first hardware device I'm looking for) that "looks" in the same direction as the camera. Next, there is a human in front of me (may be in 3-10 meters). He has a special sensor that is connected to his smartphone and he has an ID number (the second hardware device I'm looking for). Now I aim my camera on this human and the sensor in my smartphone catches the signal sent by that human's sensor. So now I can use my software to identify the man that I see through my camera by ID from his sensor.

Actually, in my opinion, this imagined system doesn't need camera at all. The camera is just a helper tool. For example, if I have no camera but have sensors, I can aim and catch the human in the dark night. If I there two or ten people around me with sensors in their phones, I can see info about them on screen and see their locations relatively to me. I imagine that if a lot of people have phones with such built-in sensors and registered accounts at the system, they can share some info with passer-by if they want. It's something like augmented reality, not for objects around you, but for people. Thank you.

+1  A: 

Bluetooth?

innaM
A: 

Active RFIDs with directional antennas?

A little more far out, but if people are willing... stick him with an implant

plastic chris
Seems, like it's some kind of what I'm looking for.It would be also good to get the human's position relatively to me. So that when I move the camera with the attached sensor, the label (e.g. a dot) on my screen moves respectively.
Sergey Basharov
+1  A: 

Some of the augmented reality toolkits can do something similar without needing separate sensors. Take a look at the ARToolkit. The demos I've seen might use a shorter range than you want, but it is all camera based.

David