High dynamic range image capture using single photon avalanche diodes
Abstract:
A system for HDR image capture is configurable to perform a split long exposure operation by applying a first set of long exposure shutter operations to configure each SPAD pixel of the SPAD array to enable photon detection and applying a second set of long exposure shutter operations to configure each SPAD pixel of the SPAD array to enable photon detection. A time period intervenes between the first and second sets of long exposure shutter. The system is configurable to perform a short exposure operation by applying a set of short exposure shutter operations to configure each SPAD pixel of the SPAD array to enable photon detection. The short exposure operation occurs during the time period that intervenes between the first and second sets of long exposure shutter operations. The system is also configurable to generate an image based on the split long exposure operation and the short exposure operation.
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