Whats EIS/DIS?
Electronic Image Stabilization and Digital Image Stabilization are completely electronic means for correcting image shake. As the shaky image hits the CCD chip, these systems reposition the active area of the chip (the location on the chip that the image is read from) to compensate for it, by re-addressing the area of the chip that they’re reading from. If you’ve seen Rocky & Bullwinkle (a US cartoon involving a moose and a squirrel), think of Bullwinkle running back and forth with the bucket of water to catch Rocky after Rocky jumps from the high diving board (of course, Bullwinkle winds up in the water, but that’s another story). The EIS/DIS controllers look for motion vectors in the image (typically a widespread displacement of the entire image) and then decide how to “reposition” the image area of the chip under the image to catch it in the same place.
