9/7/2001
CS 461, Copyright G.D. Hager
How Cameras Produce Images
•Basic process:
–photons hit a detector
–the detector becomes charged
–the charge is read out as brightness
–
•Sensor types:
–CCD (charge-coupled device)
•most common
•high sensitivity
•high power
•cannot be individually addressed
•blooming
–CMOS
•simple to fabricate (cheap)
•lower sensitivity, lower power
•can be individually addressed
                             
On-chip Microlens of Super HAD CCD