Mez is a publish-subscribe messaging system for latency sensitive multi-camera machine vision at the IoT Edge. Unlike existing messaging systems, Mez allows applications to specify latency, and application accuracy bounds. Mez implements a network latency controller that dynamically adjusts the video frame quality to satisfy latency, and application accuracy requirements. Additionally, the design of Mez utilizes application domain specific features to provide low latency operations. Experimental evaluation on an IoT Edge testbed with a pedestrian detection machine vision application indicates that Mez is able to tolerate latency variations of up to 10x with a worst-case reduction of 4.2\% in the application accuracy F1 score metric.

翻译：Mez是IoTEdge的悬浮敏感多镜头机视像的公开订阅信息系统。与现有的电讯系统不同,Mez允许应用来指定延时和应用准确度界限。Mez执行网络延时控制器,动态调整视频框架质量以满足延时要求和应用准确性要求。此外,Mez的设计利用应用域域特性来提供低延时操作。用行人探测机视像应用程序对IoTEdge测试台进行实验评价表明,Mez能够容忍高达10x的延时变换,最坏的情况是应用精度F1分减少4.2 ⁇ 。