Hi, all
I read the article published by Pelco in "Security Sales & Integration" magazine. According to this article, it says below
"during past five years much has changed with both technologies, and the current situation seems to favor the CMOS sensor"
"The main reason for the success of the CCD over the CMOS in the early statege of surveillance was the lower noise, less video smearing and blooming found in CMOS devices. However, with the increased performance of CMOS devices and the fact that it is turly a digital output and requires less power to operate, Cmos chip have become the choice for IP and megapixels camera."
Nose: moderate(CCD & CMOS)
Processing : sensor (CCD & CMOS)
Dynamic Range: wide (CCD & CMOS)
Sensor Output: analog (CCD) / digital (CMOS)
"A key difference between CCD and Cmos chips is the later outputs its information in a digital format. While CCD has dominated the video surveillance sector, IP and megapixel cameras are helping CMOS encroach on the market place"
Main advantage of CMOS
/much lower power / systems on a chip integration allows smaller cameras / lower cost of sensor chip and fewer components in camera / easy digital interface forfaster camera design / less image artifacts -no blooming or smear, with same sensitivity / higher dynami range for security applications / Direct addressing of pixels allows electronic ptz.
It seems like that CMOS is better than CCD in thesedays in terms of IP mega pixel camera? Does anybody have any ideas or information about those two? I found couple of documents from website. but it made me more confused about this. I thought CCD is always better than CMOS.
Any input would be appricated.
