Abstract: There is described an apparatus and method for tracking objects in video. In particular, there is described a method and apparatus that improves the realism of the object in the captured scene. This improvement is effected by identifying a first and last frame in a video and subjecting the detected path of the object to a correcting function which improves the output positional data.

Abstract: An ultrasonic diagnostic imaging system and method are described for more uniformly scanning a volumetric region for 3D ultrasonic imaging. An image plane of steered scanning beams is rotated about an axis extending through the volumetric region with beams in the vicinity of the axis more widely separated than beams more remotely located from the axis. The nonuniform spacing of the scanning beams results in relatively less disparate sampling densities across the scanned volumetric region. The inventive method may be performed with both 1D and 2D array transducers.