This publication describes systems and techniques directed at fusing spectral-sensor data to drive the exposure control during the boot-up of a camera sensor on an electronic device. Fusing this data into the calibration of the camera during boot-up may significantly improve the execution time of the exposure control algorithm that ensures exposure readiness. In addition, since the exposure is critical to the focus-finding algorithm, these techniques may improve overall capture readiness times. By shortening the camera boot-up time, the camera is ready sooner to capture images, making a user less likely to miss capturing desired moments due to the camera not being ready as the moment occurs.
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Gao, Jinglun; Hsu, Jean; Rajagopal, Navinprashath Rameswari; Velarde, Ruben; Chiang, Shannon; and Hung, Bob, "Camera Sensor Exposure Control During Camera Launch", Technical Disclosure Commons, (November 24, 2020)