Biomimetic frame-free HDR camera with event-driven PWM image/video sensor and full-custom address-event processor
Biomimetic frame-free HDR camera with event-driven PWM image/video sensor and full-custom address-event processor
复制标题
仿生无框 HDR 相机，具有事件驱动的 PWM 图像/视频传感器和全定制地址事件处理器
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
H. Garn
中科院分区：
文献类型：
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作者：
C. Posch;D. Matolin;R. Wohlgenannt;M. Hofstatter;P. Schon;M. Litzenberger;Daniel Bauer;H. Garn
本文提出了一种高 DR、高时间分辨率、无帧图像/摄像机，可编码和处理异步尖峰中的视觉信息。该事件驱动光学传感器具有 9.3 位灰度成像、高达 143dB DR 和 <0.25% FPN，并具有基于硬件的无损视频压缩和时域相关双采样。该相机的主要组件——异步、基于时间的图像传感器 (ATIS) 和具有 20 位 10ns 分辨率传感器数据接口的通用地址事件处理器 (GAEP)——经过专门设计，旨在实现仿生、异步、无帧视觉方法。该系统最佳地结合了基于时间（PWM）成像、仿生时间对比度动态视觉和基于事件（AER）信息编码和数据通信的优点，并在动态范围、FPN、时间分辨率、灰度分辨率和数据压缩方面实现了卓越的性能。
This paper presents a high DR, high temporal resolution, frame-free image/video camera that encodes and processes visual information in asynchronous spikes. The event-driven optical sensor features 9.3-bit grayscale imaging at up to 143dB DR and <0.25% FPN with hardware-based lossless video compression and time-domain correlated double sampling. The main components of the camera — the asynchronous, time-based image sensor (ATIS) and a general purpose Address-Event processor (GAEP) with 20-Bit 10ns-resolution sensor data interface — have been specifically designed with the goal to implementing a biomimetic, asynchronous, frame-free approach to vision. The presented system optimally combines the advantages of time-based (PWM) imaging, bio-inspired temporal contrast dynamic vision and event-based (AER) information encoding and data communication, and achieves exceptional performance in terms of dynamic range, FPN, temporal resolution, gray-level resolution and data compression.