CMOS Image Sensor With Area-Efficient Block-Based Compressive Sensing

We have designed, fabricated, and measured the performance of a linear and area-efficient implementation of the compressive sensing (CS) method in CMOS image sensors. The use of an active pixel sensor (APS) with an integrator and in-pixel current switches are exploited to develop a compact implementation of CS encoding in analog domain. The intrinsic linearity of APS with integrator circuit guarantees the linearity of the CS encoding structure. …