除云端API以外，Face++还提供本地化、个性化、企业级的人脸识别服务
http://www.faceplusplus.com/zh/
分类： Augmented Reality
Face tracking SDK
Visage Technologies AB offers innovative technology and services involving face tracking and animation.
官网：http://www.visagetechnologies.com
Beyond Reality Face
人脸识别的AS3类库
官方网站：http://www.beyond-reality-face.com
用于如下网站：
http://nike.jp/nikefree/freeface/
http://stride.qq.com
IN2AR
IN2AR is an Adobe Flash AS3 Library that allows you to detect images and estimate their pose using standard webcams/cameras. The pose information can be used to place 3D objects and/or videos onto the image and create wonderfull Augmented Reality applications, or to createunique games that can be controlled by movements of your image.
Popcode
Popcode was created by Extra Reality Limited and has no connection to PopCap® Games, Inc.
官网：http://www.popcode.info/
QCAR
高通放出的SDK，支持Android和iOS，最重要的免费，可以用于商业用途。
Qualcomm's augmented reality (AR) SDK empowers developers to create compelling mobile AR experiences based on Qualcomm's industry leading R&D.
官网：https://developer.qualcomm.com/develop/mobile-technologies/augmented-reality
Ender的AR介绍
一个朋友Ender的AR介绍：
String(Augmented Reality for iOS)
Introducing the fastest, most powerful
augmented reality technology for iOS.
官网：http://www.poweredbystring.com/
ARToolworks
ARToolworks is the premier provider of tools for developing Augmented Reality (AR) experiences. Using ARToolworks' software it is easy to create AR applications where virtual images are seamlessly overlaid on the real world.