Patent ID: 6804398
Filing Date: 2004-10-12
Classification: G06K,G06T,H04N

Abstract:
A data signal for use in a video decoding apparatus and for describing information of a moving object region in a video sequence, comprising:time data including a start time and a duration time of the object region in the video sequence; type data specifying a type of figure, corresponding to the object region, to be an ellipse and a number of representative points of the figure, the type data being described by an integer; and figure data specifying a trajectory of at least one of the representative points, including: time arrangement data including times of points used to determine the trajectory, key value data representing values of the points used to determine the trajectory, and function data for indicating the trajectory of the at least one of the representative points using information indicating an order of a function used to determine the trajectory or that no function is defined, the function data being described by another integer.