Patent ID: 7242792

Claim:
A computer readable medium storing a computer program code, comprising: a first computer code configured to generate a signal for use in a video decoding apparatus and for describing information of a moving object region in a video sequence, the signal 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, the type data also specifying a number of vertices of the figure; and figure data specifying a trajectory of at least one of representative points of the figure through at least three successive frames, 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 at least one of the representative points and therefore also the trajectory of the object region, using information, the information indicating an order of a function used to determine the trajectory or indicating that no function is defined to determine the trajectory.