文章目录：

  • 1 搭建环境
  • 2 mmtracking目标跟踪框及原理介绍

之前也一直在关注目标跟踪方面的项目，尤其是多目标跟踪，目前比较主流的多目标跟踪都是基于deepsort来做的，这方面开源的研究工作也比较少，最近突然看到Open-mmlab开源的mmtracking甚是欣喜，还是热乎的，准备好好研究一下！！！

  • mmtraking是20210104开源，第一版：V0.5.0
  • mmtracking官方教程文档

1 搭建环境

1、创建虚拟环境

conda create -n mmtrack python=3.7 -y

2、激活虚拟环境

conda activate mmtrack

3、安装cudatoolkit

conda install cudatookit=10.1

如果安装失败，也可以去这里先下载cudatoolkit的离线包，然后再安装：

conda install cudatoolkit-10.1.243-h6bb024c_0.tar.bz2

4、安装torch和torchvision

pip install torch==1.6.0 torchvision==0.7.0

注意：

torch和torchvision也是存在版本对应关系的！

5、安装mmcv-full、mmdet

pip install mmcv-full mmdet

如果安装失败，也可以去pypi官网先下载编译好的whl安装包，然后再安装

注意：

mmcv-full 和mmdet存在版本依赖问题，可能会出现版本不对应的错误，因此我这里下载的都是最新版本的，mmcv-full=1.2.5、mmdet=2.8.0（安装时间20210106）

6、克隆仓库代码

git clone https://github.com/open-mmlab/mmtracking.git
cd mmtracking

7、安装和编译依赖

pip install -r requirements/build.txt
python setup.py develop

编译成功打印输出信息如下：

(mmtrack) shl@zhihui-mint:~/shl_res/1_project/mmtracking$ python setup.py develop
running develop
running egg_info
writing mmtrack.egg-info/PKG-INFO
writing dependency_links to mmtrack.egg-info/dependency_links.txt
writing requirements to mmtrack.egg-info/requires.txt
writing top-level names to mmtrack.egg-info/top_level.txt
reading manifest file 'mmtrack.egg-info/SOURCES.txt'
writing manifest file 'mmtrack.egg-info/SOURCES.txt'
running build_ext
Creating /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/mmtrack.egg-link (link to .)
mmtrack 0.5.0 is already the active version in easy-install.pthInstalled /home/shl/shl_res/1_project/mmtracking
Processing dependencies for mmtrack==0.5.0
Searching for flake8
Reading https://pypi.org/simple/flake8/
Downloading https://files.pythonhosted.org/packages/d4/ca/3971802ee6251da1abead1a22831d7f4743781e2f743bd266bdd2f46c19b/flake8-3.8.4-py2.py3-none-any.whl#sha256=749dbbd6bfd0cf1318af27bf97a14e28e5ff548ef8e5b1566ccfb25a11e7c839
Best match: flake8 3.8.4
Processing flake8-3.8.4-py2.py3-none-any.whl
Installing flake8-3.8.4-py2.py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding flake8 3.8.4 to easy-install.pth file
Installing flake8 script to /home/shl/anaconda3/envs/mmtrack/binInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/flake8-3.8.4-py3.7.egg
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Reading https://pypi.org/simple/setuptools_scm/
Downloading https://files.pythonhosted.org/packages/db/6e/2815f7c8561b088ccedc128681e64daac3d6b2e81a9918b007e244dad8b1/setuptools_scm-5.0.1-py2.py3-none-any.whl#sha256=62fa535edb31ece9fa65dc9dcb3056145b8020c8c26c0ef1018aef33db95c40d
Best match: setuptools-scm 5.0.1
Processing setuptools_scm-5.0.1-py2.py3-none-any.whl
Installing setuptools_scm-5.0.1-py2.py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding setuptools-scm 5.0.1 to easy-install.pth fileInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/setuptools_scm-5.0.1-py3.7.egg
Searching for pytz>=2017.3
Reading https://pypi.org/simple/pytz/
Downloading https://files.pythonhosted.org/packages/89/06/2c2d3034b4d6bf22f2a4ae546d16925898658a33b4400cfb7e2c1e2871a3/pytz-2020.5-py2.py3-none-any.whl#sha256=16962c5fb8db4a8f63a26646d8886e9d769b6c511543557bc84e9569fb9a9cb4
Best match: pytz 2020.5
Processing pytz-2020.5-py2.py3-none-any.whl
Installing pytz-2020.5-py2.py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding pytz 2020.5 to easy-install.pth fileInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/pytz-2020.5-py3.7.egg
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Reading https://pypi.org/simple/py-cpuinfo/
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Best match: py-cpuinfo 7.0.0
Processing py-cpuinfo-7.0.0.tar.gz
Writing /tmp/easy_install-bq9yb6p8/py-cpuinfo-7.0.0/setup.cfg
Running py-cpuinfo-7.0.0/setup.py -q bdist_egg --dist-dir /tmp/easy_install-bq9yb6p8/py-cpuinfo-7.0.0/egg-dist-tmp-d_xsyj0m
zip_safe flag not set; analyzing archive contents...
cpuinfo.__pycache__.cpuinfo.cpython-37: module references __file__
creating /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/py_cpuinfo-7.0.0-py3.7.egg
Extracting py_cpuinfo-7.0.0-py3.7.egg to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding py-cpuinfo 7.0.0 to easy-install.pth file
Installing cpuinfo script to /home/shl/anaconda3/envs/mmtrack/binInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/py_cpuinfo-7.0.0-py3.7.egg
Searching for toml
Reading https://pypi.org/simple/toml/
Downloading https://files.pythonhosted.org/packages/44/6f/7120676b6d73228c96e17f1f794d8ab046fc910d781c8d151120c3f1569e/toml-0.10.2-py2.py3-none-any.whl#sha256=806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b
Best match: toml 0.10.2
Processing toml-0.10.2-py2.py3-none-any.whl
Installing toml-0.10.2-py2.py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding toml 0.10.2 to easy-install.pth fileInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/toml-0.10.2-py3.7.egg
Searching for py>=1.8.2
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Downloading https://files.pythonhosted.org/packages/67/32/6fe01cfc3d1a27c92fdbcdfc3f67856da8cbadf0dd9f2e18055202b2dc62/py-1.10.0-py2.py3-none-any.whl#sha256=3b80836aa6d1feeaa108e046da6423ab8f6ceda6468545ae8d02d9d58d18818a
Best match: py 1.10.0
Processing py-1.10.0-py2.py3-none-any.whl
Installing py-1.10.0-py2.py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding py 1.10.0 to easy-install.pth fileInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/py-1.10.0-py3.7.egg
Searching for pluggy<1.0.0a1,>=0.12
Reading https://pypi.org/simple/pluggy/
Downloading https://files.pythonhosted.org/packages/65/3e/e685d8a32b0f959bcfce51df06b2bdd0c8b14399ee0da22fe35a3e987842/pluggy-1.0.0.dev0-py2.py3-none-any.whl#sha256=467f0219e89bb5061a8429c6fc5cf055fa3983a0e68e84a1d205046306b37d9e
Best match: pluggy 1.0.0.dev0
Processing pluggy-1.0.0.dev0-py2.py3-none-any.whl
Installing pluggy-1.0.0.dev0-py2.py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding pluggy 1.0.0.dev0 to easy-install.pth fileInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/pluggy-1.0.0.dev0-py3.7.egg
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Reading https://pypi.org/simple/packaging/
Downloading https://files.pythonhosted.org/packages/b1/a7/588bfa063e7763247ab6f7e1d994e331b85e0e7d09f853c59a6eb9696974/packaging-20.8-py2.py3-none-any.whl#sha256=24e0da08660a87484d1602c30bb4902d74816b6985b93de36926f5bc95741858
Best match: packaging 20.8
Processing packaging-20.8-py2.py3-none-any.whl
Installing packaging-20.8-py2.py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding packaging 20.8 to easy-install.pth fileInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/packaging-20.8-py3.7.egg
Searching for iniconfig
Reading https://pypi.org/simple/iniconfig/
Downloading https://files.pythonhosted.org/packages/9b/dd/b3c12c6d707058fa947864b67f0c4e0c39ef8610988d7baea9578f3c48f3/iniconfig-1.1.1-py2.py3-none-any.whl#sha256=011e24c64b7f47f6ebd835bb12a743f2fbe9a26d4cecaa7f53bc4f35ee9da8b3
Best match: iniconfig 1.1.1
Processing iniconfig-1.1.1-py2.py3-none-any.whl
Installing iniconfig-1.1.1-py2.py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding iniconfig 1.1.1 to easy-install.pth fileInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/iniconfig-1.1.1-py3.7.egg
Searching for importlib-metadata>=0.12
Reading https://pypi.org/simple/importlib-metadata/
Downloading https://files.pythonhosted.org/packages/7a/85/ac225e35048e050a6351b6f1251cdb2b6060092f2c6840aff1d6319941b1/importlib_metadata-3.3.0-py3-none-any.whl#sha256=bf792d480abbd5eda85794e4afb09dd538393f7d6e6ffef6e9f03d2014cf9450
Best match: importlib-metadata 3.3.0
Processing importlib_metadata-3.3.0-py3-none-any.whl
Installing importlib_metadata-3.3.0-py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding importlib-metadata 3.3.0 to easy-install.pth fileInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/importlib_metadata-3.3.0-py3.7.egg
Searching for attrs>=19.2.0
Reading https://pypi.org/simple/attrs/
Downloading https://files.pythonhosted.org/packages/c3/aa/cb45262569fcc047bf070b5de61813724d6726db83259222cd7b4c79821a/attrs-20.3.0-py2.py3-none-any.whl#sha256=31b2eced602aa8423c2aea9c76a724617ed67cf9513173fd3a4f03e3a929c7e6
Best match: attrs 20.3.0
Processing attrs-20.3.0-py2.py3-none-any.whl
Installing attrs-20.3.0-py2.py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding attrs 20.3.0 to easy-install.pth fileInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/attrs-20.3.0-py3.7.egg
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Reading https://pypi.org/simple/pycodestyle/
Downloading https://files.pythonhosted.org/packages/10/5b/88879fb861ab79aef45c7e199cae3ef7af487b5603dcb363517a50602dd7/pycodestyle-2.6.0-py2.py3-none-any.whl#sha256=2295e7b2f6b5bd100585ebcb1f616591b652db8a741695b3d8f5d28bdc934367
Best match: pycodestyle 2.6.0
Processing pycodestyle-2.6.0-py2.py3-none-any.whl
Installing pycodestyle-2.6.0-py2.py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding pycodestyle 2.6.0 to easy-install.pth file
Installing pycodestyle script to /home/shl/anaconda3/envs/mmtrack/binInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/pycodestyle-2.6.0-py3.7.egg
Searching for pyflakes<2.3.0,>=2.2.0
Reading https://pypi.org/simple/pyflakes/
Downloading https://files.pythonhosted.org/packages/69/5b/fd01b0c696f2f9a6d2c839883b642493b431f28fa32b29abc465ef675473/pyflakes-2.2.0-py2.py3-none-any.whl#sha256=0d94e0e05a19e57a99444b6ddcf9a6eb2e5c68d3ca1e98e90707af8152c90a92
Best match: pyflakes 2.2.0
Processing pyflakes-2.2.0-py2.py3-none-any.whl
Installing pyflakes-2.2.0-py2.py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding pyflakes 2.2.0 to easy-install.pth file
Installing pyflakes script to /home/shl/anaconda3/envs/mmtrack/binInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/pyflakes-2.2.0-py3.7.egg
Searching for mccabe<0.7.0,>=0.6.0
Reading https://pypi.org/simple/mccabe/
Downloading https://files.pythonhosted.org/packages/87/89/479dc97e18549e21354893e4ee4ef36db1d237534982482c3681ee6e7b57/mccabe-0.6.1-py2.py3-none-any.whl#sha256=ab8a6258860da4b6677da4bd2fe5dc2c659cff31b3ee4f7f5d64e79735b80d42
Best match: mccabe 0.6.1
Processing mccabe-0.6.1-py2.py3-none-any.whl
Installing mccabe-0.6.1-py2.py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding mccabe 0.6.1 to easy-install.pth fileInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/mccabe-0.6.1-py3.7.egg
Searching for zipp>=0.5
Reading https://pypi.org/simple/zipp/
Downloading https://files.pythonhosted.org/packages/41/ad/6a4f1a124b325618a7fb758b885b68ff7b058eec47d9220a12ab38d90b1f/zipp-3.4.0-py3-none-any.whl#sha256=102c24ef8f171fd729d46599845e95c7ab894a4cf45f5de11a44cc7444fb1108
Best match: zipp 3.4.0
Processing zipp-3.4.0-py3-none-any.whl
Installing zipp-3.4.0-py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding zipp 3.4.0 to easy-install.pth fileInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/zipp-3.4.0-py3.7.egg
Searching for typing-extensions>=3.6.4
Reading https://pypi.org/simple/typing-extensions/
Downloading https://files.pythonhosted.org/packages/60/7a/e881b5abb54db0e6e671ab088d079c57ce54e8a01a3ca443f561ccadb37e/typing_extensions-3.7.4.3-py3-none-any.whl#sha256=7cb407020f00f7bfc3cb3e7881628838e69d8f3fcab2f64742a5e76b2f841918
Best match: typing-extensions 3.7.4.3
Processing typing_extensions-3.7.4.3-py3-none-any.whl
Installing typing_extensions-3.7.4.3-py3-none-any.whl to /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Adding typing-extensions 3.7.4.3 to easy-install.pth fileInstalled /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/typing_extensions-3.7.4.3-py3.7.egg
Searching for terminaltables==3.1.0
Best match: terminaltables 3.1.0
Adding terminaltables 3.1.0 to easy-install.pth fileUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Searching for six==1.15.0
Best match: six 1.15.0
Adding six 1.15.0 to easy-install.pth fileUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Searching for seaborn==0.11.1
Best match: seaborn 0.11.1
Processing seaborn-0.11.1-py3.7.egg
seaborn 0.11.1 is already the active version in easy-install.pthUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/seaborn-0.11.1-py3.7.egg
Searching for numpy==1.19.5
Best match: numpy 1.19.5
Adding numpy 1.19.5 to easy-install.pth file
Installing f2py script to /home/shl/anaconda3/envs/mmtrack/bin
Installing f2py3 script to /home/shl/anaconda3/envs/mmtrack/bin
Installing f2py3.7 script to /home/shl/anaconda3/envs/mmtrack/binUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Searching for motmetrics==1.2.0
Best match: motmetrics 1.2.0
Processing motmetrics-1.2.0-py3.7.egg
motmetrics 1.2.0 is already the active version in easy-install.pthUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/motmetrics-1.2.0-py3.7.egg
Searching for mmpycocotools==12.0.3
Best match: mmpycocotools 12.0.3
Adding mmpycocotools 12.0.3 to easy-install.pth fileUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
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Best match: mmcls 0.7.0
Processing mmcls-0.7.0-py3.7.egg
mmcls 0.7.0 is already the active version in easy-install.pthUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/mmcls-0.7.0-py3.7.egg
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Best match: matplotlib 3.3.3
Adding matplotlib 3.3.3 to easy-install.pth fileUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
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Best match: dotty-dict 1.3.0
Processing dotty_dict-1.3.0-py3.7.egg
dotty-dict 1.3.0 is already the active version in easy-install.pthUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/dotty_dict-1.3.0-py3.7.egg
Searching for scipy==1.6.0
Best match: scipy 1.6.0
Processing scipy-1.6.0-py3.7-linux-x86_64.egg
scipy 1.6.0 is already the active version in easy-install.pthUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/scipy-1.6.0-py3.7-linux-x86_64.egg
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Best match: pandas 1.2.0
Processing pandas-1.2.0-py3.7-linux-x86_64.egg
pandas 1.2.0 is already the active version in easy-install.pthUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/pandas-1.2.0-py3.7-linux-x86_64.egg
Searching for xmltodict==0.12.0
Best match: xmltodict 0.12.0
Processing xmltodict-0.12.0-py3.7.egg
xmltodict 0.12.0 is already the active version in easy-install.pthUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/xmltodict-0.12.0-py3.7.egg
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pytest-benchmark 3.2.3 is already the active version in easy-install.pth
Installing py.test-benchmark script to /home/shl/anaconda3/envs/mmtrack/bin
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Searching for pytest==6.2.1
Best match: pytest 6.2.1
Processing pytest-6.2.1-py3.7.egg
pytest 6.2.1 is already the active version in easy-install.pth
Installing py.test script to /home/shl/anaconda3/envs/mmtrack/bin
Installing pytest script to /home/shl/anaconda3/envs/mmtrack/binUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/pytest-6.2.1-py3.7.egg
Searching for flake8-import-order==0.18.1
Best match: flake8-import-order 0.18.1
Processing flake8_import_order-0.18.1-py3.7.egg
flake8-import-order 0.18.1 is already the active version in easy-install.pthUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages/flake8_import_order-0.18.1-py3.7.egg
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Best match: Cython 0.29.21
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Installing cythonize script to /home/shl/anaconda3/envs/mmtrack/binUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
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Best match: setuptools 51.0.0.post20201207
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Installing easy_install script to /home/shl/anaconda3/envs/mmtrack/binUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Searching for Pillow==8.1.0
Best match: Pillow 8.1.0
Adding Pillow 8.1.0 to easy-install.pth fileUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Searching for pyparsing==2.4.7
Best match: pyparsing 2.4.7
Adding pyparsing 2.4.7 to easy-install.pth fileUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Searching for python-dateutil==2.8.1
Best match: python-dateutil 2.8.1
Adding python-dateutil 2.8.1 to easy-install.pth fileUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Searching for cycler==0.10.0
Best match: cycler 0.10.0
Adding cycler 0.10.0 to easy-install.pth fileUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Searching for kiwisolver==1.3.1
Best match: kiwisolver 1.3.1
Adding kiwisolver 1.3.1 to easy-install.pth fileUsing /home/shl/anaconda3/envs/mmtrack/lib/python3.7/site-packages
Finished processing dependencies for mmtrack==0.5.0
(mmtrack) shl@zhihui-mint:~/shl_res/1_project/mmtracking$

8、测试：

python demo/demo_mot.py configs/mot/deepsort/sort_faster-rcnn_fpn_4e_mot17-private.py --input demo/demo.mp4 --output mot.mp4

(mmtrack) shl@zhihui-mint:~/shl_res/1_project/mmtracking$ python demo/demo_mot.py configs/mot/deepsort/sort_faster-rcnn_fpn_4e_mot17-private.py --input demo/demo.mp4 --output mot.mp4
2021-01-06 18:47:13,804 - mmtrack - INFO - load detector from: https://download.openmmlab.com/mmtracking/mot/faster_rcnn/faster-rcnn_r50_fpn_4e_mot17-ffa52ae7.pth
Downloading: "https://download.openmmlab.com/mmtracking/mot/faster_rcnn/faster-rcnn_r50_fpn_4e_mot17-ffa52ae7.pth" to /home/shl/.cache/torch/hub/checkpoints/faster-rcnn_r50_fpn_4e_mot17-ffa52ae7.pth
100.0%
[>>>>>>                                            ] 1/8, 6.1 task/s, elapsed: 0s, ETA:     1s/home/shl/shl_res/1_project/mmtracking/mmtrack/models/mot/trackers/sort_tracker.py:192: UserWarning: This overload of nonzero is deprecated:nonzero(Tensor input, *, Tensor out)
Consider using one of the following signatures instead:nonzero(Tensor input, *, bool as_tuple) (Triggered internally at  /pytorch/torch/csrc/utils/python_arg_parser.cpp:766.)active_dets = torch.nonzero(ids == -1).squeeze(1)
[>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>] 8/8, 8.3 task/s, elapsed: 1s, ETA:     0smaking the output video at mot.mp4 with a FPS of 3.0
OpenCV: FFMPEG: tag 0x44495658/'XVID' is not supported with codec id 12 and format 'mp4 / MP4 (MPEG-4 Part 14)'
OpenCV: FFMPEG: fallback to use tag 0x7634706d/'mp4v'
[>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>] 8/8, 38.5 task/s, elapsed: 0s, ETA:     0s
(mmtrack) shl@zhihui-mint:~/shl_res/1_project/mmtracking$

注意：

最新的输入和输出参数已经从-i和-o，更改为了--input和--output

测试结果如下（我是从结果视频中随机截一张图示例），实际测试跟踪比较稳定和准确：

2 mmtracking目标跟踪框及原理介绍

持续更新中......

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