To set up a handrail holding detection tool, do the following:

1. Set common parameters (see Setting up common parameters for pose detection tools).
2. Click anywhere in the Preview window.
   

3. Mark one or several handrails with lines (1).
   

   If lens distortion makes the handrail non-linear, use several lines.

   

4. Set anchor points to specify an area where people must hold handrails (2).