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Mosfet Modulated Dual Conversion Gain Cmos Image Sensors, Xiangli Li
Mosfet Modulated Dual Conversion Gain Cmos Image Sensors, Xiangli Li
Boise State University Theses and Dissertations
In recent years, vision systems based on CMOS image sensors have acquired significant ground over those based on charge-coupled devices (CCD). The main advantages of CMOS image sensors are their high level of integration, random accessibility, and low-voltage, low-power operation. Previously proposed high dynamic range enhancement schemes focused mainly on extending the sensor dynamic range at the high illumination end. Sensor dynamic range extension at the low illumination end has not been addressed. Since most applications require low-noise, high-sensitivity, characteristics for imaging of the dark region as well as dynamic range expansion to the bright region, the availability of a …