A 100 μW 128 x 64 Pixels Contrast-Based Asynchronous Binary Vision Sensor for Sensor Networks Applications
A 100 μW 128 x 64 Pixels Contrast-Based Asynchronous Binary Vision Sensor for Sensor Networks Applications
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DOI：
10.1109/jssc.2009.2017000
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发表时间：
2009-05-01
影响因子：
5.4
通讯作者：
Jawed, Syed Arsalan
中科院分区：
文献类型：
--
作者：
Gottardi, Massimo;Massari, Nicola;Jawed, Syed Arsalan
本文介绍了一种超低功耗128 x 64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。异步读出仅以80 MB/s的突发速率发送断言像素的地址，从而显著减少输出端的数据量。像素嵌入式二进制帧缓冲器允许传感器直接处理视觉信息，例如运动和背景减除，这是机器视觉应用中最有用的滤波器。所提出的传感器消耗小于100 μ W，在50 fps与25%的像素活动。通过在空闲模式下操作传感器，可以将功耗进一步降低到约30 μ W，从而最大限度地减少输出处的传感器活动。
An ultra-low power 128 x 64 pixels vision sensor is here presented, featuring pixel-level spatial contrast extraction and binarization. The asynchronous readout only dispatches the addresses of the asserted pixels in bursts of 80 MB/s, significantly reducing the amount of data at the output. The pixel-embedded binary frame buffer allows the sensor to directly process visual information, such as motion and background subtraction, which are the most useful filters in machine vision applications. The presented sensor consumes less than 100 mu W at 50 fps with 25% of pixel activity. Power consumption can be further reduced down to about 30 mu W by operating the sensor in Idle-Mode, thus minimizing the sensor activity at the ouput.