Patent ID: 7304649

Claim:
A computer readable medium storing a computer program code, comprising: a first computer program 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: type data identifying a type of approximate figure of the moving object region, the type data also identifying a number of representative points of the approximate figure; trajectory data describing a trajectory of one of the representative points of the approximate figure, the trajectory data comprising: first linear function flag data indicating whether only linear functions are used for describing a trajectory of the representative points in a first dimension, a first type identifier specifying an order of a first function of time for describing a trajectory of the representative points in the first dimension, and therefore also the trajectory of the object region; second linear function flag data indicating whether only linear functions are used for describing a second trajectory of the representative points in a second dimension, and a second type identifier specifying an order of a second function of time for describing a trajectory of the representative points in the second dimension, and therefore also the trajectory of the object region; depth data specifying a distance between a camera and the moving object region, the depth data comprising: third linear function flag data indicating whether only linear functions are used for describing a trajectory of the distance in a third dimension, and a third type identifier specifying an order of a function of time for describing the trajectory of the distance in the third dimension.