# FaceVerificationAndroid

**Repository Path**: srx-coco/FaceVerificationAndroid

## Basic Information

- **Project Name**: FaceVerificationAndroid
- **Description**: Face verification with mxnet on android
- **Primary Language**: Java
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2018-10-08
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# Face Verification on Android

Face verification with mxnet on android

## Face Detection

OpenCV has an in-built Viola-Jones face detector which is used here to detect faces.

## Face Verification

I use pre-trained LightenedCNN as feature extractor. 

![arch](http://img.blog.csdn.net/20161112165845008)

For more information please read the original paper

>https://arxiv.org/abs/1511.02683

My notes about this paper: [Lightened CNN](http://blog.csdn.net/tinyzhao/article/details/53127870)

The similarity metric is cosine similarity. The threshold should be about 0.5 ,and it should be adjusted according to specific applications.

## Face Alignment

I use VanillaCNN to detect facial landmarks. This step is crucial for high accuracy.

The paper can be found below

>http://www.openu.ac.il/home/hassner/projects/tcnn_landmarks/ 

My notes about this paper: [VanillaCNN](http://blog.csdn.net/tinyzhao/article/details/53559373)

The original implementation is based on Caffe, and I have turned it into MXNet model.You can get more details from below:

>https://github.com/flyingzhao/mxnet_VanillaCNN

The face is aligned by three landmarks including two inter-ocular points and one mid-mouth point. Affine transformation is applied with these three points.

## MXNet

[MXNet](http://mxnet.io/) is a great deep learning framework and can be used on Android efficiently and flexibly.

I have compiled mxnet for android with ndk-r13b. You can also refer to my blog for more details.

>http://blog.csdn.net/tinyzhao/article/details/53288102

You can also download compiled libmxnet_predict.so [here](https://github.com/flyingzhao/FaceVerificationAndroid/blob/master/app/src/main/jniLibs/armeabi/libmxnet_predict.so)

## Result

I test on my Xiaomi 4C (Snapdragon 808) and I get about 1.5s per image.