Linux、Windows下试用DarkNet之YoLo CPU物体识别
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关于YOLO:
YOLO——You Only Look Once
Faster RCNN需要对20k个anchor box进行判断是否是物体,然后再进行物体识别,分成了两步。
YOLO(You Only Look Once)则把物体框的选择与识别进行了结合,一步输出,即变成”You Only Look Once”。
所以识别速度非常快,达到每秒45帧,而在快速版YOLO(Fast YOLO,卷积层更少)中,可以达到每秒155帧。
关于DarkNet:
#Darknet#
Darknet is an open source neural network framework written in C and CUDA. It is fast, easy to install, and supports CPU and GPU computation.
For more information see the [Darknet project website](http://pjreddie.com/darknet or https://github.com/pjreddie/darknet).
安装指南:http://pjreddie.com/darknet/install/
这个是我见过安装最简单的开源库了!!!
linux下,解压后直接make就可以了,如果你想实时可视化,开启OPENCV=1,关于这里配置OPENCV时需要注意下:
ifeq ($(OPENCV), 1)
COMMON+= -DOPENCV -I/usr/local/include
CFLAGS+= -DOPENCV
LDFLAGS+= -L/usr/local/lib -lopencv_core -lopencv_highgui -lopencv_imgproc
endif
编译好后,下载训练好的权值数据yolo.weights(我下的是700M左右的),同时使用了相应的yolo.cfg,从官网下的没运行成功!!!
贴一下yolo.cfg
[net]batch=1subdivisions=1height=448width=448channels=3momentum=0.9decay=0.0005saturation=1.5exposure=1.5hue=.1learning_rate=0.0005policy=stepssteps=200,400,600,20000,30000scales=2.5,2,2,.1,.1max_batches = 40000[convolutional]batch_normalize=1filters=64size=7stride=2pad=1activation=leaky[maxpool]size=2stride=2[convolutional]batch_normalize=1filters=192size=3stride=1pad=1activation=leaky[maxpool]size=2stride=2[convolutional]batch_normalize=1filters=128size=1stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=256size=3stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=256size=1stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=512size=3stride=1pad=1activation=leaky[maxpool]size=2stride=2[convolutional]batch_normalize=1filters=256size=1stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=512size=3stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=256size=1stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=512size=3stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=256size=1stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=512size=3stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=256size=1stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=512size=3stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=512size=1stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=1024size=3stride=1pad=1activation=leaky[maxpool]size=2stride=2[convolutional]batch_normalize=1filters=512size=1stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=1024size=3stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=512size=1stride=1pad=1activation=leaky[convolutional]batch_normalize=1filters=1024size=3stride=1pad=1activation=leaky#######[convolutional]batch_normalize=1size=3stride=1pad=1filters=1024activation=leaky[convolutional]batch_normalize=1size=3stride=2pad=1filters=1024activation=leaky[convolutional]batch_normalize=1size=3stride=1pad=1filters=1024activation=leaky[convolutional]batch_normalize=1size=3stride=1pad=1filters=1024activation=leaky[local]size=3stride=1pad=1filters=256activation=leaky[dropout]probability=.5[connected]output= 1715activation=linear[detection]classes=20coords=4rescore=1side=7num=3softmax=0sqrt=1jitter=.2object_scale=1noobject_scale=.5class_scale=1coord_scale=5
键入命令:
$>./darknet yolo test cfg/yolo.cfg yolo.weights data/dog.jpg
Windows下更简单了,直接使用https://github.com/AlexeyAB/yolo-windows
可见CPU下Debug耗时太长啊!
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