nanmi

解析ONNX文件

参考link: https://www.youtube.com/watch?v=QZQwmZTfLmI

安装Protobuf3.x

link: https://github.com/protocolbuffers/protobuf/releases

下载onnx.proto3

link: https://github.com/onnx/onnx/blob/master/onnx/onnx.proto3

解析onnx

nanmi

各种数据集的数据格式

---

Kitti格式

example:

Pedestrian 0.00 0 -0.20 712.40 143.00 810.73 307.92 1.89 0.48 1.20 1.84 1.47 8.41 0.01

| 字段 | 含义 | 说明 |

nanmi

pytorch导出onnx的两种方式(静态输入&动态输入)

以resnet18为例

import onnx 
import torch
import torchvision 
import netron

nanmi

opencv Mat to ncnn Mat

• cv::Mat CV_8UC3 -> ncnn::Mat 3 channel + swap RGB/BGR

// cv::Mat a(h, w, CV_8UC3);
ncnn::Mat in = ncnn::Mat::from_pixels(a.data, ncnn::Mat::PIXEL_BGR2RGB, a.cols, a.rows);

• cv::Mat CV_8UC3 -> ncnn::Mat 3 channel + keep RGB/BGR order

nanmi

xmake安装和使用教程

https://xmake.io/#/zh-cn/about/course

安装xmake

$ git clone --recursive https://github.com/xmake-io/xmake.git
$ cd ./xmake 
$ ./scripts/get.sh __local__ 
$ source ~/.xmake/profile
#如果觉得github的源太慢，可以通过gitee的镜像源拉取：

nanmi

PyPy安装及加速Python代码

首先安装PyPy环境

下载地址：https://downloads.python.org/pypy/

解压

创建使用pypy的virtualenv

mkvirtualenv -p {解压好的路径}/bin/pypy {virtualenv name}

OK!!

nanmi

容器启动后增加 端口映射 和 挂载目录

增加 端口映射

停止docker服务(一定要，否则修改会自动还原)

sudo systemctl stop docker

修改/var/lib/docker/containers/[hash_of_the_container]/hostconfig.json和/var/lib/docker/containers/[hash_of_the_container]/config.v2.json

修改hostconfig.json

nanmi

Ubuntu修改用户名和主机名

{user_name}@{host_name}

参考链接：https://blog.csdn.net/Dan1374219106/article/details/106631364

修改主机名host_name

#进入root
$ su root

nanmi

Docker容器ssh远程连接

1.Ubuntu 版本

安装ssh

apt update
apt install openssh-server
/etc/init.d/ssh start

修改ssh配置文件

nanmi

安装DeepStream

---

安装依赖

$ sudo apt install libjson-glib-dev libjansson4 libvtk6-dev python-vtk6 openssl libssl-dev ffmpeg libx11-dev gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-doc gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio gstreamer1.0-rtsp libgstreamer-plugins-base1.0-dev libgstreamer1.0-0 libgstreamer1.0-dev libgstrtspserver-1.0-0 libgstrtspserver-1.0-dev 

sudo apt-get install libv4l-dev
cd /usr/include/linux
sudo ln -s ../libv4l1-videodev.h videodev.h