colored ball tracing is easy with image processing,because balls can be separated from the whole background by just using a simple color filter (software).it's my understanding that there is only one webcam on the ground (descrp:cheap low res web cam) the rest of the algorithm could be anything,the designer choose how to interpret the data.but your approach would be the one.check this video for ball tracking; youtube . com/watch?v=v-NaRj8Rznw keywords: image processing, object tracking.
description;it's vision based.the web cam is looking at the color balls on the sides of the heli;so image processor (the computer) knows if it is going up/down/left/right. and the auto pilot (again,the computer,which has the radio connected) keeps the heli at a certain level. the distance doesn't necessarily must be known,relational distance has to be.if the computer knows where the heli has started at first place,it can or does assume that point (checking the color balls) is x,y,z=0.
@sismancocuk Thanks for taking your time to explain. I made the assumption that the heli does on board processing. But what about the distance from the camera? Does it use two cameras at right angles or is the one camera judging distance by the diameter of the colour balls. Or is it something different altogether?
colored ball tracing is easy with image processing,because balls can be separated from the whole background by just using a simple color filter (software).it's my understanding that there is only one webcam on the ground (descrp:cheap low res web cam) the rest of the algorithm could be anything,the designer choose how to interpret the data.but your approach would be the one.check this video for ball tracking; youtube . com/watch?v=v-NaRj8Rznw keywords: image processing, object tracking.
sismancocuk 10 months ago
Just wondering, how does it know the disctance from the floor?
arminask 1 year ago
@arminask
description;it's vision based.the web cam is looking at the color balls on the sides of the heli;so image processor (the computer) knows if it is going up/down/left/right. and the auto pilot (again,the computer,which has the radio connected) keeps the heli at a certain level. the distance doesn't necessarily must be known,relational distance has to be.if the computer knows where the heli has started at first place,it can or does assume that point (checking the color balls) is x,y,z=0.
sismancocuk 10 months ago
@sismancocuk Thanks for taking your time to explain. I made the assumption that the heli does on board processing. But what about the distance from the camera? Does it use two cameras at right angles or is the one camera judging distance by the diameter of the colour balls. Or is it something different altogether?
arminask 10 months ago
What university are you from?
oehrlein49 1 year ago
how do you keep the balanced and the distance from the floor???
potobill 3 years ago
That's pretty good. Is it IR? How do you keep it at a set hight?
thewzdocgmail 3 years ago