rendering the set of {HEAD ~ point samples} as a sequence of output images from an arbitrary point of view of the object while acquiring {TAIL ~ the sequence} of input images and maintaining the set of point samples 
rendering the set of { HEAD ~ point samples } as a sequence of output images from an arbitrary point of view of the object while acquiring { TAIL ~ the sequence } of input images and maintaining the set of point samples
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH