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A 64 x 64 Pixels 30μW Vision Sensor with Binary Data Compression
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DOI：10.1109/ICSENS.2010.5690662.png)
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Abstract
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In this work, we describe preliminary results related to an ultra-low power vision sensor, embedding contrast extraction and output data compression. The sensor performs less than 30 mu W at 3.3V and 30 frame/s, combining data compression together with event detection capabilities and efficient sensor interface. This makes the presented sensor to be suitable for energy-autonomous applications, ranging from surveillance to people counting and monitoring. A prototype of vision system has been realized interfacing the chip with a low power CPLD, which manages the different sensor operating modes. The module drives a total average current of less than 500 mu A at 30fps. Powered with a small 900mAh lithium battery, the vision system will be able to work continuously for about 3 months.
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