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CCD vs. CMOS Image Sensors for Machine Vision, Defense, and Traffic Applications

Posted by Gretchen Alper on Thu, May 3, 2012

There is an on-going evolution happening in the type of image sensor best suited for various applications, with two camps firmly established: CCD and CMOS.  There is a lot of talk of the increased market share for CMOS sensors.  We have dedicated several posts to this topic and the advantages and disadvantages of each technology for specific applications.  In case you missed them before:

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Topics: Sensor Technology, CCD vs. CMOS

CCD versus CMOS in Traffic Applications

Posted by Gretchen Alper on Mon, Jan 30, 2012

For intelligent traffic systems, VGA resolution CCD-based cameras have traditionally been the accepted technology, but with the quality of CMOS image sensors continuously improving, CMOS-based cameras are now a viable option for demanding license plate recognition applications.  The latest system requirements are for higher resolution (HDTV) and frame rates of 30 to 60 frames per second as well as all of the following: color, NIR sensitivity, high dynamic range, and low noise at high gain.  Imaging systems for traffic are exposed to extreme lighting and temperature conditions which affect the image quality.  So what are the advantages and disadvantages of choosing a camera based on a CMOS image sensor versus a CCD image sensor?

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Topics: Sensor Technology, CCD vs. CMOS

CCD vs. CMOS Image Sensors in Machine Vision Update

Posted by Gretchen Alper on Tue, Dec 6, 2011

In February 2011, we provided an analysis on the use of CCD versus CMOS image sensors in machine vision.

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Topics: Sensor Technology, CCD vs. CMOS

Can small pixel CMOS image sensors be useful in Machine Vision?

Posted by Gretchen Alper on Wed, Oct 5, 2011

Why is it that cameras for consumer electronic products, e.g. smart phones have more than 5 megapixel tiny cameras that cost next to nothing, are not used for machine vision?  

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Topics: Sensor Technology, CCD vs. CMOS

CCD vs. CMOS Image Sensors in Defense Cameras

Posted by Gretchen Alper on Thu, Jul 7, 2011

CMOS sensor based defense cameras are gaining ground, but for long-term, reliable, high image quality applications, CCDs will continue to be the preferred option for a while.

On February 8th, we discussed the CCD vs. CMOS sensors in machine vision cameras.  We discussed that CMOS image sensors have shown significant improvements in quality and are quickly approaching that of CCD sensors, especially when sophisticated camera technology is used to optimize image uniformity. Our conclusion was that more and more, CMOS-sensor based cameras are a good option for many machine vision applications now and this trend will continue.[1]

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Topics: Sensor Technology, CCD vs. CMOS

CCD vs. CMOS Image Sensors in Machine Vision Cameras

Posted by Gretchen Alper on Tue, Feb 8, 2011

CCD vs. CMOS Image sensors:  The lines are blurring 

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Topics: Sensor Technology, CCD vs. CMOS