Patent ID: 9219922
Filing Date: 2015-12-22
Classification: H04N

Abstract:
1. A method for creating a composited video frame sequence, the method comprising: at a system including one or more processors and memory storing instructions for execution by the processor: comparing a current scene graph state with a previous scene graph state, wherein the current scene graph state and the previous scene graph state are respective states of a tree data structure that includes a plurality of hierarchical nodes associated with one or more objects within a graphical scene and that includes spatial information for the one or more objects representing respective positions of the one or more objects in the graphical scene, determining if at least one object of the one or more objects has moved based upon the comparison of the scene graph states; in accordance with a determination that at least one object of the one or more objects has moved, determining motion information about the at least one object based on the comparison of the scene graph states; and defining motion vectors for the composited video frame sequence based on the motion information.