[M4IF Technotes] Re: Need advice on Motion Estimation, please advise....

[cloverleafland mail.hongkong.com]

Dear all,
I am currently working on a project to build a MPEG-4 encoder. I got confusion on the process of motion estimation. would anyone help explaining why the motion estimation is done on 16x16 block based but not in 8x8 block based?
Also, for a macroblock, it consists of 4 8x8 Y blocks and 1 8x8 U block and 1 8x8 V block, would anyone advise whetehr the motion estimation on Y, U and V are done seperately or not?
Thanks so much....
Regards,
Clover
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