Volumetric motion vector calculation in free angle display system

This paper proposed a linear method for calculating motion of a rigid-body from two views provided that static 3D reconstruction has been completed. The succinct method does not involve the fundamental matrix, and the point correspondence procedure in 3D reconstruction is reused. QR decomposition is adopted to solve linear equation set and thus obtain motion vector. Furthermore, an iterative process enables the method to eliminate outliers. Sufficient experiments proved the validity and efficiency of the method.