Active Pixel Sensor

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The content is sourced from: https://handwiki.org/wiki/Engineering:Active_pixel_sensor

An active-pixel sensor (APS) is an image sensor where each picture element ("pixel") has a photodetector and an active amplifier. There are many types of integrated circuit active pixel sensors including the complementary metal–oxide–semiconductor (CMOS) APS used most commonly in cell phone cameras, web cameras, most digital pocket cameras since 2010, in most digital single-lens reflex cameras (DSLRs) and Mirrorless interchangeable-lens cameras (MILCs). Such an image sensor is produced using CMOS technology (and is hence also known as a CMOS sensor), and has emerged as an alternative to charge-coupled device (CCD) image sensors. The term 'active pixel sensor' is also used to refer to the individual pixel sensor itself, as opposed to the image sensor; in that case the image sensor is sometimes called an active pixel sensor imager, or active-pixel image sensor.

active pixel sensor metal–oxide–semiconductor charge-coupled device

References

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H. Lin; C.H Lai; Y. C. Ling (2004). "A four transistor CMOS active pixel sensor with high dynamic range operation". IEEE Advanced System Integrated Circuits: 124–127.
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