Sunday, October 3, 2010


My colleagues, being a conservative bunch, are adamant that CCD sensors are far superior to CMOS. I however try to keep an open mind. I think CMOS-based machine vision cameras have a few things in their favor, like high speed, dynamic range and resistance to blooming. However, I am forced to admit that the rolling shutter can be a significant drawback.

(A rolling shutter exposes a single line of pixels at a time, which mean that when acquiring an image of something in motion it will appear to slant. The alternative, a global shutter, exposes all the pixels simultaneously.)

So all this means that I was interested in a new product announcement from camera-maker IDS Imaging. They’ve recently unveiled a line of cameras that incorporate a new CMOS sensor from e2v. This, it is claimed, gives the best of both CCD and CMOS sensors. Hopefully that includes lower cost!


Anonymous said...

Dalsa has good writing about the topic:

Anonymous said...

Here's a good example of what a CMOS rolling shutter is capable of doing: