[M4IF Technotes] Problem : Half Pixel ME

[Sachin Patil]

Hello all,
     I have an integer pel search Motion Estimation algorithm 
implemented  for my MPEG4 video encoder. Now I am trying to refine the 
search using half pixel resolution. I find that there is an increase in 
file size with half pel refined search.
Can anyone tell me the advantages of using Half Pel search with respect to 
the following --
1. I want to know if there can be an increase in the output file size.
2. Is half pel refinement used only for an improvement in quality ( quality 
measure used : PSNR ) ?
3. What is the increased computational complexity?
Thankyou,
Sachin.
--
Sachin Patil.
Smart Yantra Technologies Pvt. Ltd.
Bangalore
INDIA
Phone : +91 80 363 4917, 363 4918
Email : sachin   smartyantra.com
Website : www.smartyantra.com
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