Half pel and quad pel

[nilgosavi]

what is use of half pel and quad pel in me

[unskinnyboy]

Didn't you ask a related question sometime back already (http://forum.doom9.org/showthread.php?t=104621)? And got plenty of answers too?

In there you said you already implemented half-pel for a wavelet codec of yours and wanted to know about q-pel. Now you are asking about the use of half-pel and q-pel in ME? So what exactly had you implemented? :rolleyes:

[Guest]

Since motion does not always occur in integral PEL amounts, sub-pixel ME allows for more accurate block matching and results in smaller residuals that have to be coded and transmitted.