Self-Calibration of a Camera from Video of a Walking Human

Fengjun Lv


Analysis of human activity from a video camera is simplified by the knowledge of the camera's intrinsic and extrinsic parameters. We describe a technique to estimate such parameters from image observations without requiring measurements of scene objects.

We first develop a general technique for calibration using vanishing points and vanishing lines. We then describe a method for estimating the needed points and lines by observing the motion of a human in the scene. Experimental results, including error estimates, are presented.

Maintained by Philippos Mordohai