Assuming the focal length of the lens is 50 mm and the image of the object is formed at distance 80 mm from the lens, determine the distance of the object to the lens. Name two methods. An active method uses special lighting or signal, such as laser or sonar.
Typical methods used to find depth are triangulation and time of flight.
In the image of Problem 3, a line is to be detected. What would be the best method in your opinion to find the line. Give the steps of your method. A template matching approach seems most appropriate. We can define four 3 by 3 templates that can locate horizontal, vertical, and the diagonal lines.