Quarter-pixel motion (also known as Q-pel motion or Qpel motion) refers to using a quarter of the distance between pixels (or luma sample positions) as the motion vector precision for motion estimation and motion compensation in video compression schemes. It is used in many modern video coding formats such as MPEG-4 ASP, H.264/AVC, and HEVC. Though higher precision motion vectors take more bits to encode, they can sometimes result in more efficient compression overall, by increasing the quality of the prediction signal.
Video encoding software products such as Xvid, 3ivx, and DivX Pro Codec, which are based upon the MPEG-4 specification, use motion estimation algorithms to significantly improve video compression. The default level of resolution for motion estimation for most MPEG-4 ASP implementations is half a pixel, although quarter pixel is specified under the standard. H.264 decoders always support quarter-pixel motion. Quarter-pixel resolution can improve the quality of the video prediction signal as compared to half-pixel resolution, although the improvement may not always be enough to offset the increased bit cost of the quarter-pixel-precision motion vector; additional techniques such as rate-distortion optimization, which takes both quality and bit cost into account, are used to significantly improve the effectiveness of quarter-pel motion estimation.
These are the Daze my friend
We're so far from the end
But we can't wait forever and a day
Forever and a Day
One for your City
Two if you're prissy
Three for the raw real homie
Rollin' wit' me
Four's like the voice in my head
Getting dizzy
Five get it so live
The cops come & get me
Six for the politrix
Seven call the Reverend
Eight DNA certain way
You a felon
Nine feeling fine
Even when the sun shady
Ten that's a dime
Goapele do it crazy
If you miss me when I'm gone
Just know riding on a sky plain
You never know
I could be wrong
Sometimes I'm weak
When I feel strong
Push on
Be strong
Don't wait
Lean on
Sometimes
Pray on
Hold on
Because
These are the Daze
You gotta go for broke
I'm taking all my chances
And if you're scared of transit...
Run for cover
Light is fading
It's getting dark
The sun is fading
Oh they told me
Live today
Like your gonna live forever
Tomorrow paves the way
For the rest of your life
Even if we lose some along the way
It's not worth the hate
No time to hate
Black prophet
Still grandma collar poppin
Do anything for a twenty dollar profit
They push into yo kitchen til yo momma holla stop it
If it ain't first class
Then I'mma try the cockpit
Had some ups & downs
Been dumped around
It's nothing
''cause we ain't sufferin' now
For life we lusted
In God we trust
But now don't discuss it
We going for bust
Hold tight
It's not
Too late
Take it
Right now
It's in
Your hands
Because
These are the days we gotta go for broke
I'm taking all my chances
And if you're scared of transit...
Run for cover
Light is fading
Its getting dark