Openface Home
重点可参考：杨存毅的博客
OpenFace官方网站：
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https://cmusatyalab.github.io/openface/
https://cmusatyalab.github.io/openface/setup/
环境配置
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Ubuntu16.04
Nvidia 940M
Cuda8.0
库环境
OpenCV2.4.11与cuda8.0具有一定的冲突性，可以安装opencv2.4.13，本机安装的是opencv3.10. OpenCV2.4.13可参照官方教程（未测试） OpenCV3.1的安装过程如下：
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[compiler] sudo apt-get install build-essential
[required] sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
[optional] sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev
cd ~/opencv
mkdir release
cd release
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
make
sudo make install
Dlib库，torch，OpenFace安装
此处略过，查看之前的内容
训练DNN模型
数据预处理：
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for N in {1..8}; do ./util/align-dlib.py data/casia-facescrub/raw align outerEyesAndNose data/casia-facescrub/dlib-affine-sz:96 --size 96 & done
python2 ./util/prune-dataset.py data/casia-facescrub/dlib-affine-sz:96 --numImagesThreshold 3
Train之前需要做的处理：
train.lua:需要修正module和OpenFaceOptim模块：
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local models = require 'model'
local openFaceOptim = require 'OpenFaceOptim'
改为：
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local models = require './model.lua'
local openFaceOptim = require './OpenFaceOptim.lua'
另外还需要调整训练参数opt.lua，主要需要修改两个参数，减少对GPU的要求（不然容易out of memory）：
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cmd:option('-peoplePerBatch', 15, 'Number of people to sample in each mini-batch.')
cmd:option('-imagesPerPerson', 20, 'Number of images to sample per person in each mini-batch.')
改为：
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cmd:option('-peoplePerBatch', 1, 'Number of people to sample in each mini-batch.')
cmd:option('-imagesPerPerson', 2, 'Number of images to sample per person in each mini-batch.')
test.lua文件运行的时候发生错误找不到文件，直接改成绝对目录：
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local batchRepresent = "../batch-represent/main.lua"
local lfwEval = "../evaluation/lfw.py"
改为：
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local batchRepresent = "～/openface/batch-represent/main.lua"
local lfwEval = "~/openface/evaluation/lfw.py"
找不到/data/lfw/aligned文件：
修改opt.lua:
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cmd:option('-lfwDir', '../data/lfw/aligned', 'LFW aligned image directory for testing.')
改为：
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cmd:option('-lfwDir', '~/openface/data/lfw/aligned', 'LFW aligned image directory for testing.')
改过之后，开始训练和测试的时候，还是溢出了，再改：
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cmd:option('-testBatchSize', 800, 'Batch size for testing.')
改成
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cmd:option('-testBatchSize', 80, 'Batch size for testing.')
「必须！」为了要testing，改变在opts.lua中的lfwDir:
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cmd:option('-lfwDir', '/media/tsunyi/0EF057F8F057E50D/codeDemo/openface-master/data/lfw/dlib-affine-sz:96', 'LFW aligned image directory for testing.'
更改openface/batch-represent下面的batch-represent和opts以减少GPU 更改/openface/evaluation下的lfw.py，相关文件路径