Finding distance travelled by robot using Optical Flow

Question

I\'m working on a project right now in which we are developing an autonomous robot. I have to basically find out the distance travelled by the robot between any 2 intervals. I\'

Answer 1

I hope you do end up accepting answers you received in the past. Anyway, I had posted the solution to this problem on SO (in OpenCV) a while back, so here it is:

How can I determine distance from an object in a video?

Answer 2

have you considered doing odometry? You can use encoders as well as accelerometers to calculate distance. Is way more cheaper.

Answer 3

The answer offered by Jacob is the right path to pursue, but you are likely to find that the resulting distance-traveled information is fairly noisy. You may want to consider using Kalman filters to improve your localization estimates over time.

There is a very large body of literature on Kalman filters, but I've listed one relevant paper below.

Larry H. Matthies, Richard Szeliski, and Takeo Kanade (1989). "Kalman Filter-based Algorithms for Estimating Depth from Image Sequences ", International Journal of Computer Vision, Vol 3, No. 3, September, pp 209–236.

Answer 4

What about finding distance with help of no of rotation a wheel rotated in particular distance.

Distance=no of rotation* circumference of wheel