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JSSC 2009第5期Image Sensors

A 100 22W 128 64 Pixels Contrast-Based Asynchronous Binary Vision Sensor for Sen

一款超低功耗128x64像素视觉传感器，具有像素级空间对比度提取和二值化功能。
100μW at 50 fps with 25% of pixel activity
CMOS视觉传感器能量自主低功耗传感器低功耗视觉处理无线传感器网络
▸像素级空间对比度提取和二值化
▸异步读出仅以80 MB/s的速度发送断言像素的地址
▸像素嵌入式二进制帧缓冲器可直接处理视觉信息
Abstract
er , IEEE, Nicola Massari , Member , IEEE, and Syed Arsalan Jawed Abstract—An ultra-low power 128 64 pixels vision sensor is here presented, featuring pixel-level spatial contrast extraction and binarization. The asynchronous readout only dispatches the ad- dresses of the asserted pixels in bursts of 80 MB/s, significantly reducing the amount of data at the output. The pixel-embedded bi- nary frame buffer allows the sensor to directly process visual infor- mation, such as motion and background s