Bundling night vision and other driver assistance systems (DAS) using near infra red (NIR) illumination and a rolling shutter
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United States of America Patent
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Nov 3, 2015
Issued Date -
N/A
app pub date -
Oct 28, 2011
filing date -
Oct 31, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A system mountable in a motor vehicle. The system includes a camera and a processor configured to receive image data from the camera. The camera includes a rolling shutter configured to capture the image data during a frame period and to scan and to read the image data into multiple image frames. A near infra-red illuminator may be configured to provide a near infra-red illumination cone in the field of view of the camera. The near infrared illumination oscillates with an illumination period. A synchronization mechanism may be configured to synchronize the illumination period to the frame period of the rolling shutter. The frame period may be selected so that the synchronization mechanism provides a spatial profile of the near infra-red illumination cone which may be substantially aligned vertically to a specific region, e.g. near the center of the image frame.
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