In {HEAD ~ one embodiment}, {TAIL ~ the operator} electronically outlines the front, side and back trunk of the female while viewing the front, side and back video frame images 
In { HEAD ~ one embodiment } , { TAIL ~ the operator } electronically outlines the front , side and back trunk of the female while viewing the front , side and back video frame images
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH