The A406k provides 209 frames per second (fps) at full resolution of 2,320 by 1,726 pixels. To achieve its high frame rates, the camera has a complementary metal-oxide semiconductor (CMOS) sensor with a rolling shutter. A flash window provides an output signal when all of the lines in the sensor are ready for exposure, simulating a global shutter. The camera is calibrated and corrected to achieve high image quality. One correction takes care of any deviations in the camera’s 2,352 analog-to-digital converters (ADCs).
The fixed pattern noise (FPN) that is typical for a CMOS sensor also is corrected, as is the photo response non-uniformity (PRNU). The combined result is an image very close to charge-coupled device (CCD) quality, even in a 10-bit mode. The data reading out of the sensor result in up to a 2.4-gigabyte per second data stream.
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