title: Implementation of vanishing point algorithm using opencv
body: <p>I am trying to make an ARDRONE(a quadrotor) to navigate trhough a maze. </p>
  
  <p>I am using ROS-ELECTRIC and OPENCV. I have implemented hough line transfrom. I need to implement the vanishing point algortihm to make the robot navigate autonomously. I am new to opencv . Could you guys please suggest the approach to attain the vanishing point? and also will it serve the purpose of navigating the robot through a maze and find the target?</p>
  
  <p>thank you</p>