Camera Motion Tracking using Background Geometry

To composite computer graphic objects and photo-real sequences we should know the camera intrinsic and extrinsic parameters. Many algorithms have been proposed for camera auto-calibration but most of them severely depend on reliable feature tracking so they cannot be applied to moving background sequences like the ocean scene. We assume that intrinsic parameters are known and propose a new method to estimate camera motion using background geometry. The proposed method can be used only in the ocean background sequence but it shows possibility to develop various approaches to estimate camera motion using previous knowledge about background geometry.