Patent ID: 8643770

Claim:
An image signal processing system comprising: an image sensor interface configured to receive image data acquired from an image sensor as a plurality of image frames based upon a sensor timing signal provided by the image sensor and to provide the received image data; image signal processing logic configured to receive the image data from the image sensor interface and to process the image data acquired by the image sensor; a strobe device configured to, when activated, illuminate an image scene being captured by the image sensor; and a strobe controller configured to determine when to activate the strobe device to illuminate a selected image frame of the plurality of image frames by: using a first timing signal received by the image sensor interface that is delayed by a first interval with respect to the sensor timing signal to identify a first time corresponding to an end of a previous image frame immediately preceding the selected image frame; adding a second interval between the selected image frame and the previous image frame to the first time to determine a second time; subtracting the first interval from the second time to determine a third time; subtracting a third interval from the third time to determine a fourth time; and activating the strobe device at the fourth time.