Abstract
We have developed a High-resolution Random-access Camera (HRC) using a 4-M pixel Charge Modulation Device (CMD) image sensor. Two read out modes of the HRC enable real-time display of an entire image with normal resolution and real-time display of the block of interest with high resolution. Required time to change the modes or the observation area is 1/60 s. Also, two new FPN suppression methods are investigated. In both methods, FPN is reduced by subtracting the output signal just after the reset from the output signal. These methods will be useful for cost-effective, small size camera systems using active pixel sensors.
