. Describe the optical and physical phenomena in the world that can lead to intensity edges in images.  Using one of the standard visual toolkits, calibrate a perspective camera. . Use a visual target...

. Describe the optical and physical phenomena in the world that can lead to intensity edges in images.  Using one of the standard visual toolkits, calibrate a perspective camera. . Use a visual target system such as the AR Toolkit to localize prepositioned targets in the environment using a standard video camera. How robust is the pose recovery in terms of range to the target and the viewing angle?