What is the exact distance between two yellow lines?

[JeremyCKT]

According to the graph shown on the README.md, what is the exact distance between two yellow lines? Thanks!

[dluvizon]

Hi @JeremyCKT ,

The yellow lines are for illustration purpose only. They delimit the approximated region which we consider to estimate the speed . The speed is estimated by tracking features in pairs of two sequntial frames.

[jodumagpi]

Hi @dluvizon, does that mean that you only track the features (and determine the speed) inside the bounds of the yellow lines?

[dluvizon]

Hi @jodumagpi , no. We start tracking even before the yellow lines, but use the displacement vectors for inferring the speed that are in between these two lines.

[jodumagpi]

@dluvizon thanks! I understood.