TY - GEN
T1 - A 45.5μW 15fps always-on CMOS image sensor for mobile and wearable devices
AU - Choi, Jaehyuk
AU - Shin, Jungsoon
AU - Kang, Dongwu
AU - Park, Du Sik
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/3/17
Y1 - 2015/3/17
N2 - Most mobile devices embed a CMOS image sensor (CIS) for capturing images. In addition, a variety of sensors such as proximity, ambient light, and fingerprint sensors are integrated for device control. The integration of multiple sensors in a device requires significant power consumption, area, and cost. In contrast to multiple sensors, an always-on CIS enables advanced smart sensing, including gesture sensing, face recognition, eye tracking, and so on. Smart sensing using a CIS offers a variety of user interfaces and experiences such as touch-less control, authentication, gaming, and object recognition for the Internet of Things (IOT). A major drawback of a CIS in mobile devices is that it consumes power greater than 50mW [1], and this is not feasible for always-on sensing that is required to function with the limited energy available from the device's battery. Moreover, power reduction in a CIS causes image degradation owing to reduced SNR, which is not acceptable for capturing high-quality images. Many low-power CISs have been reported [2-3]. However, they are inadequate for use as high-resolution sensors because of the requirement of additional in-pixel circuits for device operation at low supply voltages.
AB - Most mobile devices embed a CMOS image sensor (CIS) for capturing images. In addition, a variety of sensors such as proximity, ambient light, and fingerprint sensors are integrated for device control. The integration of multiple sensors in a device requires significant power consumption, area, and cost. In contrast to multiple sensors, an always-on CIS enables advanced smart sensing, including gesture sensing, face recognition, eye tracking, and so on. Smart sensing using a CIS offers a variety of user interfaces and experiences such as touch-less control, authentication, gaming, and object recognition for the Internet of Things (IOT). A major drawback of a CIS in mobile devices is that it consumes power greater than 50mW [1], and this is not feasible for always-on sensing that is required to function with the limited energy available from the device's battery. Moreover, power reduction in a CIS causes image degradation owing to reduced SNR, which is not acceptable for capturing high-quality images. Many low-power CISs have been reported [2-3]. However, they are inadequate for use as high-resolution sensors because of the requirement of additional in-pixel circuits for device operation at low supply voltages.
UR - https://www.scopus.com/pages/publications/84940773327
U2 - 10.1109/ISSCC.2015.7062952
DO - 10.1109/ISSCC.2015.7062952
M3 - Conference contribution
AN - SCOPUS:84940773327
T3 - Digest of Technical Papers - IEEE International Solid-State Circuits Conference
SP - 114
EP - 115
BT - 2015 IEEE International Solid-State Circuits Conference, ISSCC 2015 - Digest of Technical Papers
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 62nd IEEE International Solid-State Circuits Conference, ISSCC 2015 - Digest of Technical Papers
Y2 - 22 February 2015 through 26 February 2015
ER -