⚡ 本页包含 AI 生成的分析内容，仅供参考
本文提出了一种QVGA分辨率、143dB动态范围的异步地址事件PWM动态图像传感器，通过像素级无损视频压缩解决传统帧采样导致的数据冗余问题。该传感器采用异步事件驱动读出和脉冲宽度调制，显著降低数据带宽和功耗。
Conventional image/video sensors acquire visual information from a scene in time-quantized fashion at some predetermined frame rate. Each frame carries the information from all pixels, regardless of whether or not this information has changed since the last frame had been acquired, which is usually not long ago. This method obviously leads, depending on the dynamic contents of the scene, to a more or less high degree of redundancy in the image data. Acquisition and handling of these dispensable data consume valuable resources; sophisticated and resource-hungry video compression methods have been developed to deal with these data. The biggest conceivable gain is achieved by simply not recording the redundant data in the first place, thus saving power in the acquisition and reducing energy, bandwidth/memory requirements, and computing power in transmission and post-processing. In order to do so, and to achieve complete temporal redundancy suppression, a fundamental solution is an array o
Christoph Posch, Daniel Matolin, Rainer Wohlgenannt
Austrian Institute of Technology, Vienna, Austria