Example of Pixel Track Shake Reduction in CNET’s Pentax Optio E70 Review – Joshua Goldman:
One thing worth mentioning is Pentax’s new Pixel Track SR for helping minimize the effects of motion blur. Turn it on and it will track motion blur at the pixel level, determining in real time the amount of blur. Once you’ve taken a shot, it filters the effect motion has on each pixel to sharpen them and remove blur (all of this takes a few seconds after the photo is captured). In my tests it worked better than the traditional method of electronic stabilization of boosting ISO and shutter speed, as Pixel Track doesn’t introduce more noise. However, in some of my shots it sacrificed sharpness in order to remove a slight blur. So it’s not perfect, but it would be worth turning on if camera shake is unavoidable.
Joshua explains the before-and-after example images:
With Pentax’s Pixel Track SR off (left) you can see some motion blur caused by handshake. When turned on (right), the blur is gone but the rest of the photo isn’t as sharp.