tracking.js | Fast (Camera) (trackingjs.com)
https://justadudewhohacks.github.io/face-api.js/face_and_landmark_detection
识别5人
https://github.com/leandroveronezi/go-recognizer/tree/master
一个完整例子
手把手 Golang 实现静态图像与视频流人脸识别 - CodeAntenna