In particular, the invention presents {HEAD ~ a novel approach} for implementing {TAIL ~ DCT} and IDCT using the same hardware 
In particular , the invention presents { HEAD ~ a novel approach } for implementing { TAIL ~ DCT } and IDCT using the same hardware
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH