Re: Automatic shooting of firework photos
Other ideas for creative use of motion detection anyone?
Using the R, G, and B, detection options use different colored LEDs
to remotely trigger different camera functions
Couldn't the IR sensor normally used for remote control be reprogrammed to accept other IR sequences, like those that an ordinary remote control can emit ?
You could then get support for excuting hundreds of different function or script using a cheap universal remote and you wouldn't have to buy a special remote control for the camera, if you could just reuse the remote for your TV , VCR or Stereo.
As for other creative uses of motion detection, you could use the camera to measure the speed of objects moving horizontally or vertically in the frame.
I believe that CHDK can already measure the distance to the focus point .. you could use that information to calculate the speed of a moving object by using motion detection to calculate how many pixels it moved and how fast and then convert that to a KM/s or M/s measurement.
You can even have the script only snap pictures of fast moving objects (or only slow objects) and overlay the speed measurement onto the final picture - Your very own speed trap.
It could also be altered to only react to large objects so it would ignore cats and birds but take photos of people.
You could also use motion detection to snap pictures of moving targets only when they entered the center of the frame, to more easily take picture of races or to use it to take photo finish shoots once the moving object crossed the centerline of the image.
I wonder also if face detection could be coded in for cameras that didn't already have this feature.
Another use could be to motion/sound triggered high speed photography where you either used a strobe light or had a script open the shutter at the cameras fastest setting (maybe 1/2000) and then after some of that time had passed it would trigger the flash so the sensor didn't catch the light in the entire time period the shutter was open.
It could also work the other way around , so the flash is triggered first and then the shutter is opened when the flash is about to die out , but I suspect that the flash may light up faster than it would fade out, so the former would usually be the best method.