Demonstration of CMOS readout technique with pixel-level code modulation for 2-D active imaging

Proof-of-principle experiments of the CMOS readout technique with pixel-level code modulation for 2-D active imaging are demonstrated. The encoding readout technique can be advantageous for passive imaging systems, such as long-wave infrared imagers where there is a very large background flux. Another potential application for the encoding technique is high-speed passive imaging, particularly for applications that do not require extremely high amplitude resolution.