diff --git a/docs/Makefile b/docs/Makefile
new file mode 100644
index 0000000..718eddc
--- /dev/null
+++ b/docs/Makefile
@@ -0,0 +1,19 @@
+# Minimal makefile for Sphinx documentation
+# Copyright (c) Facebook, Inc. and its affiliates.
+
+# You can set these variables from the command line.
+SPHINXOPTS    =
+SPHINXBUILD   = sphinx-build
+SOURCEDIR     = .
+BUILDDIR      = _build
+
+# Put it first so that "make" without argument is like "make help".
+help:
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+.PHONY: help Makefile
+
+# Catch-all target: route all unknown targets to Sphinx using the new
+# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
+%: Makefile
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
diff --git a/docs/README.md b/docs/README.md
new file mode 100644
index 0000000..ba8607e
--- /dev/null
+++ b/docs/README.md
@@ -0,0 +1,16 @@
+# Read the docs:
+
+The latest documentation built from this directory is available at [detectron2.readthedocs.io](https://detectron2.readthedocs.io/).
+Documents in this directory are not meant to be read on github.
+
+# Build the docs:
+
+1. Install detectron2 according to [INSTALL.md](https://github.com/facebookresearch/detectron2/blob/master/INSTALL.md).
+2. Install additional libraries required to build docs:
+  - docutils==0.16
+  - Sphinx==3.0.0
+  - recommonmark==0.6.0
+  - sphinx_rtd_theme
+  - mock
+
+3. Run `make html` from this directory.
diff --git a/docs/_static/css/custom.css b/docs/_static/css/custom.css
new file mode 100644
index 0000000..a272c68
--- /dev/null
+++ b/docs/_static/css/custom.css
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ * some extra css to make markdown look similar between github/sphinx
+ */
+
+/*
+ * Below is for install.md:
+ */
+.rst-content code {
+  white-space: pre;
+  border: 0px;
+}
+
+.rst-content th {
+  border: 1px solid #e1e4e5;
+}
+
+.rst-content th p {
+  /* otherwise will be default 24px for regular paragraph */
+  margin-bottom: 0px;
+}
+
+div.section > details {
+  padding-bottom: 1em;
+}
diff --git a/docs/conf.py b/docs/conf.py
new file mode 100644
index 0000000..aad5c16
--- /dev/null
+++ b/docs/conf.py
@@ -0,0 +1,356 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) Facebook, Inc. and its affiliates.
+
+# flake8: noqa
+
+# Configuration file for the Sphinx documentation builder.
+#
+# This file does only contain a selection of the most common options. For a
+# full list see the documentation:
+# http://www.sphinx-doc.org/en/master/config
+
+# -- Path setup --------------------------------------------------------------
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+#
+import os
+import sys
+from unittest import mock
+from sphinx.domains import Domain
+from typing import Dict, List, Tuple
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+#
+import sphinx_rtd_theme
+
+
+class GithubURLDomain(Domain):
+    """
+    Resolve certain links in markdown files to github source.
+    """
+
+    name = "githuburl"
+    ROOT = "https://github.com/JDAI-CV/fast-reid/tree/master"
+    LINKED_DOC = ["tutorials/install", "tutorials/getting_started"]
+
+    def resolve_any_xref(self, env, fromdocname, builder, target, node, contnode):
+        github_url = None
+        if not target.endswith("html") and target.startswith("../../"):
+            url = target.replace("../", "")
+            github_url = url
+        if fromdocname in self.LINKED_DOC:
+            # unresolved links in these docs are all github links
+            github_url = target
+
+        if github_url is not None:
+            if github_url.endswith("MODEL_ZOO") or github_url.endswith("README"):
+                # bug of recommonmark.
+                # https://github.com/readthedocs/recommonmark/blob/ddd56e7717e9745f11300059e4268e204138a6b1/recommonmark/parser.py#L152-L155
+                github_url += ".md"
+            print("Ref {} resolved to github:{}".format(target, github_url))
+            contnode["refuri"] = self.ROOT + github_url
+            return [("githuburl:any", contnode)]
+        else:
+            return []
+
+
+# to support markdown
+from recommonmark.parser import CommonMarkParser
+
+sys.path.insert(0, os.path.abspath("../"))
+os.environ["DOC_BUILDING"] = "True"
+DEPLOY = os.environ.get("READTHEDOCS") == "True"
+
+
+# -- Project information -----------------------------------------------------
+
+# fmt: off
+try:
+    import torch  # noqa
+except ImportError:
+    for m in [
+        "torch", "torchvision", "torch.nn", "torch.nn.parallel", "torch.distributed", "torch.multiprocessing", "torch.autograd",
+        "torch.autograd.function", "torch.nn.modules", "torch.nn.modules.utils", "torch.utils", "torch.utils.data", "torch.onnx",
+        "torchvision", "torchvision.ops",
+    ]:
+        sys.modules[m] = mock.Mock(name=m)
+    sys.modules['torch'].__version__ = "1.5"  # fake version
+
+for m in [
+    "cv2", "scipy", "portalocker", 
+    "google", "google.protobuf", "google.protobuf.internal", "onnx",
+]:
+    sys.modules[m] = mock.Mock(name=m)
+# fmt: on
+sys.modules["cv2"].__version__ = "3.4"
+
+import fastreid  # isort: skip
+
+
+project = "fastreid"
+copyright = "2019-2020, fastreid contributors"
+author = "fastreid contributors"
+
+# The short X.Y version
+version = fastreid.__version__
+# The full version, including alpha/beta/rc tags
+release = version
+
+
+# -- General configuration ---------------------------------------------------
+
+# If your documentation needs a minimal Sphinx version, state it here.
+#
+needs_sphinx = "3.0"
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = [
+    "recommonmark",
+    "sphinx.ext.autodoc",
+    "sphinx.ext.napoleon",
+    "sphinx.ext.intersphinx",
+    "sphinx.ext.todo",
+    "sphinx.ext.coverage",
+    "sphinx.ext.mathjax",
+    "sphinx.ext.viewcode",
+    "sphinx.ext.githubpages",
+]
+
+# -- Configurations for plugins ------------
+napoleon_google_docstring = True
+napoleon_include_init_with_doc = True
+napoleon_include_special_with_doc = True
+napoleon_numpy_docstring = False
+napoleon_use_rtype = False
+autodoc_inherit_docstrings = False
+autodoc_member_order = "bysource"
+
+if DEPLOY:
+    intersphinx_timeout = 10
+else:
+    # skip this when building locally
+    intersphinx_timeout = 0.1
+intersphinx_mapping = {
+    "python": ("https://docs.python.org/3.6", None),
+    "numpy": ("https://docs.scipy.org/doc/numpy/", None),
+    "torch": ("https://pytorch.org/docs/master/", None),
+}
+# -------------------------
+
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ["_templates"]
+
+source_suffix = [".rst", ".md"]
+
+# The master toctree document.
+master_doc = "index"
+
+# The language for content autogenerated by Sphinx. Refer to documentation
+# for a list of supported languages.
+#
+# This is also used if you do content translation via gettext catalogs.
+# Usually you set "language" from the command line for these cases.
+language = None
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+# This pattern also affects html_static_path and html_extra_path.
+exclude_patterns = ["_build", "Thumbs.db", ".DS_Store", "build", "README.md", "tutorials/README.md"]
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = "sphinx"
+
+
+# -- Options for HTML output -------------------------------------------------
+
+html_theme = "sphinx_rtd_theme"
+html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
+
+# Theme options are theme-specific and customize the look and feel of a theme
+# further.  For a list of options available for each theme, see the
+# documentation.
+#
+# html_theme_options = {}
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ["_static"]
+html_css_files = ["css/custom.css"]
+
+# Custom sidebar templates, must be a dictionary that maps document names
+# to template names.
+#
+# The default sidebars (for documents that don't match any pattern) are
+# defined by theme itself.  Builtin themes are using these templates by
+# default: ``['localtoc.html', 'relations.html', 'sourcelink.html',
+# 'searchbox.html']``.
+#
+# html_sidebars = {}
+
+
+# -- Options for HTMLHelp output ---------------------------------------------
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = "fastreiddoc"
+
+
+# -- Options for LaTeX output ------------------------------------------------
+
+latex_elements = {
+    # The paper size ('letterpaper' or 'a4paper').
+    #
+    # 'papersize': 'letterpaper',
+    # The font size ('10pt', '11pt' or '12pt').
+    #
+    # 'pointsize': '10pt',
+    # Additional stuff for the LaTeX preamble.
+    #
+    # 'preamble': '',
+    # Latex figure (float) alignment
+    #
+    # 'figure_align': 'htbp',
+}
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title,
+#  author, documentclass [howto, manual, or own class]).
+latex_documents = [
+    (master_doc, "fastreid.tex", "fastreid Documentation", "fastreid contributors", "manual")
+]
+
+
+# -- Options for manual page output ------------------------------------------
+
+# One entry per manual page. List of tuples
+# (source start file, name, description, authors, manual section).
+man_pages = [(master_doc, "fastreid", "fastreid Documentation", [author], 1)]
+
+
+# -- Options for Texinfo output ----------------------------------------------
+
+# Grouping the document tree into Texinfo files. List of tuples
+# (source start file, target name, title, author,
+#  dir menu entry, description, category)
+texinfo_documents = [
+    (
+        master_doc,
+        "fastreid",
+        "fastreid Documentation",
+        author,
+        "fastreid",
+        "One line description of project.",
+        "Miscellaneous",
+    )
+]
+
+
+# -- Options for todo extension ----------------------------------------------
+
+# If true, `todo` and `todoList` produce output, else they produce nothing.
+todo_include_todos = True
+
+
+def autodoc_skip_member(app, what, name, obj, skip, options):
+    # we hide something deliberately
+    if getattr(obj, "__HIDE_SPHINX_DOC__", False):
+        return True
+
+    # Hide some that are deprecated or not intended to be used
+    HIDDEN = {
+        # "ResNetBlockBase",
+        "GroupedBatchSampler",
+        # "build_transform_gen",
+        # "export_caffe2_model",
+        # "export_onnx_model",
+        # "apply_transform_gens",
+        # "TransformGen",
+        # "apply_augmentations",
+        # "StandardAugInput",
+        # "build_batch_data_loader",
+        # "draw_panoptic_seg_predictions",
+    }
+    try:
+        if name in HIDDEN or (
+            hasattr(obj, "__doc__") and obj.__doc__.lower().strip().startswith("deprecated")
+        ):
+            print("Skipping deprecated object: {}".format(name))
+            return True
+    except:
+        pass
+    return skip
+
+
+_PAPER_DATA = {
+    "resnet": ("1512.03385", "Deep Residual Learning for Image Recognition"),
+    "fpn": ("1612.03144", "Feature Pyramid Networks for Object Detection"),
+    "mask r-cnn": ("1703.06870", "Mask R-CNN"),
+    "faster r-cnn": (
+        "1506.01497",
+        "Faster R-CNN: Towards Real-Time Object Detection with Region Proposal Networks",
+    ),
+    "deformconv": ("1703.06211", "Deformable Convolutional Networks"),
+    "deformconv2": ("1811.11168", "Deformable ConvNets v2: More Deformable, Better Results"),
+    "panopticfpn": ("1901.02446", "Panoptic Feature Pyramid Networks"),
+    "retinanet": ("1708.02002", "Focal Loss for Dense Object Detection"),
+    "cascade r-cnn": ("1712.00726", "Cascade R-CNN: Delving into High Quality Object Detection"),
+    "lvis": ("1908.03195", "LVIS: A Dataset for Large Vocabulary Instance Segmentation"),
+    "rrpn": ("1703.01086", "Arbitrary-Oriented Scene Text Detection via Rotation Proposals"),
+    "imagenet in 1h": ("1706.02677", "Accurate, Large Minibatch SGD: Training ImageNet in 1 Hour"),
+    "xception": ("1610.02357", "Xception: Deep Learning with Depthwise Separable Convolutions"),
+    "mobilenet": (
+        "1704.04861",
+        "MobileNets: Efficient Convolutional Neural Networks for Mobile Vision Applications",
+    ),
+}
+
+
+def paper_ref_role(
+    typ: str,
+    rawtext: str,
+    text: str,
+    lineno: int,
+    inliner,
+    options: Dict = {},
+    content: List[str] = [],
+):
+    """
+    Parse :paper:`xxx`. Similar to the "extlinks" sphinx extension.
+    """
+    from docutils import nodes, utils
+    from sphinx.util.nodes import split_explicit_title
+
+    text = utils.unescape(text)
+    has_explicit_title, title, link = split_explicit_title(text)
+    link = link.lower()
+    if link not in _PAPER_DATA:
+        inliner.reporter.warning("Cannot find paper " + link)
+        paper_url, paper_title = "#", link
+    else:
+        paper_url, paper_title = _PAPER_DATA[link]
+        if "/" not in paper_url:
+            paper_url = "https://arxiv.org/abs/" + paper_url
+    if not has_explicit_title:
+        title = paper_title
+    pnode = nodes.reference(title, title, internal=False, refuri=paper_url)
+    return [pnode], []
+
+
+def setup(app):
+    from recommonmark.transform import AutoStructify
+
+    app.add_domain(GithubURLDomain)
+    app.connect("autodoc-skip-member", autodoc_skip_member)
+    app.add_role("paper", paper_ref_role)
+    app.add_config_value(
+        "recommonmark_config",
+        {"enable_math": True, "enable_inline_math": True, "enable_eval_rst": True},
+        True,
+    )
+    app.add_transform(AutoStructify)
diff --git a/docs/index.rst b/docs/index.rst
new file mode 100644
index 0000000..8634b7b
--- /dev/null
+++ b/docs/index.rst
@@ -0,0 +1,14 @@
+.. detectron2 documentation master file, created by
+   sphinx-quickstart on Sat Sep 21 13:46:45 2019.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Welcome to detectron2's documentation!
+======================================
+
+.. toctree::
+   :maxdepth: 2
+
+   tutorials/index
+   notes/index
+   modules/index
diff --git a/docs/modules/checkpoint.rst b/docs/modules/checkpoint.rst
new file mode 100644
index 0000000..0dde84f
--- /dev/null
+++ b/docs/modules/checkpoint.rst
@@ -0,0 +1,7 @@
+fastreid.checkpoint
+=============================
+
+.. automodule:: fastreid.utils.checkpoint
+    :members:
+    :undoc-members:
+    :show-inheritance:
diff --git a/docs/modules/config.rst b/docs/modules/config.rst
new file mode 100644
index 0000000..5d0e36b
--- /dev/null
+++ b/docs/modules/config.rst
@@ -0,0 +1,19 @@
+fastreid.config 
+=========================
+
+Related tutorials: :doc:`../tutorials/configs`, :doc:`../tutorials/extend`.
+
+.. automodule:: fastreid.config
+    :members:
+    :undoc-members:
+    :show-inheritance:
+    :inherited-members:
+
+
+Config References
+-----------------
+
+.. literalinclude:: ../../fastreid/config/defaults.py
+  :language: python
+  :linenos:
+  :lines: 4-
diff --git a/docs/modules/data.rst b/docs/modules/data.rst
new file mode 100644
index 0000000..bcde5ee
--- /dev/null
+++ b/docs/modules/data.rst
@@ -0,0 +1,96 @@
+fastreid.data
+=======================
+
+.. automodule:: fastreid.data.build
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+
+fastreid.data.data\_utils module
+---------------------------------------
+
+.. automodule:: fastreid.data.data_utils
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+
+fastreid.data.datasets module
+---------------------------------------
+
+.. automodule:: fastreid.data.datasets.market1501
+    :members:
+
+.. automodule:: fastreid.data.datasets.cuhk03
+    :members:
+
+.. automodule:: fastreid.data.datasets.dukemtmcreid
+    :members:
+
+.. automodule:: fastreid.data.datasets.msmt17
+    :members:
+
+.. automodule:: fastreid.data.datasets.AirportALERT
+    :members:
+
+.. automodule:: fastreid.data.datasets.iLIDS
+    :members:
+
+.. automodule:: fastreid.data.datasets.pku
+    :members:
+
+.. automodule:: fastreid.data.datasets.prai
+    :members:
+
+.. automodule:: fastreid.data.datasets.saivt
+    :members:
+
+.. automodule:: fastreid.data.datasets.sensereid
+    :members:
+
+.. automodule:: fastreid.data.datasets.sysu_mm
+    :members:
+
+.. automodule:: fastreid.data.datasets.thermalworld
+    :members:
+
+.. automodule:: fastreid.data.datasets.pes3d
+    :members:
+
+.. automodule:: fastreid.data.datasets.caviara
+    :members:
+
+.. automodule:: fastreid.data.datasets.viper
+    :members:
+
+.. automodule:: fastreid.data.datasets.lpw
+    :members:
+
+.. automodule:: fastreid.data.datasets.shinpuhkan
+    :members:
+
+.. automodule:: fastreid.data.datasets.wildtracker
+    :members:
+
+.. automodule:: fastreid.data.datasets.cuhk_sysu
+    :members:
+
+
+fastreid.data.samplers module
+---------------------------------------
+
+.. automodule:: fastreid.data.samplers
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+
+fastreid.data.transforms module
+---------------------------------------
+
+.. automodule:: fastreid.data.transforms
+    :members:
+    :undoc-members:
+    :show-inheritance:
+    :imported-members:
diff --git a/docs/modules/data_transforms.rst b/docs/modules/data_transforms.rst
new file mode 100644
index 0000000..b82125e
--- /dev/null
+++ b/docs/modules/data_transforms.rst
@@ -0,0 +1,9 @@
+fastreid.data.transforms
+====================================
+
+
+.. automodule:: fastreid.data.transforms
+    :members:
+    :undoc-members:
+    :show-inheritance:
+    :imported-members:
diff --git a/docs/modules/engine.rst b/docs/modules/engine.rst
new file mode 100644
index 0000000..66e3d6a
--- /dev/null
+++ b/docs/modules/engine.rst
@@ -0,0 +1,24 @@
+fastreid.engine
+=========================
+
+.. automodule:: fastreid.engine
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+
+fastreid.engine.defaults module
+---------------------------------
+
+.. automodule:: fastreid.engine.defaults
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+fastreid.engine.hooks module
+---------------------------------
+
+.. automodule:: fastreid.engine.hooks
+    :members:
+    :undoc-members:
+    :show-inheritance:
diff --git a/docs/modules/evaluation.rst b/docs/modules/evaluation.rst
new file mode 100644
index 0000000..007b68d
--- /dev/null
+++ b/docs/modules/evaluation.rst
@@ -0,0 +1,7 @@
+fastreid.evaluation
+=============================
+
+.. automodule:: fastreid.evaluation
+    :members:
+    :undoc-members:
+    :show-inheritance:
diff --git a/docs/modules/export.rst b/docs/modules/export.rst
new file mode 100644
index 0000000..3d4ad21
--- /dev/null
+++ b/docs/modules/export.rst
@@ -0,0 +1,9 @@
+fastreid.export
+=========================
+
+Related tutorial: :doc:`../tutorials/deployment`.
+
+.. automodule:: fastreid.export
+    :members:
+    :undoc-members:
+    :show-inheritance:
diff --git a/docs/modules/index.rst b/docs/modules/index.rst
new file mode 100644
index 0000000..34cf084
--- /dev/null
+++ b/docs/modules/index.rst
@@ -0,0 +1,17 @@
+API Documentation
+==================
+
+.. toctree::
+
+    checkpoint
+    config
+    data
+    data_transforms
+    engine
+    evaluation
+    layers
+    model_zoo
+    modeling
+    solver
+    utils
+    export
diff --git a/docs/modules/layers.rst b/docs/modules/layers.rst
new file mode 100644
index 0000000..9db621a
--- /dev/null
+++ b/docs/modules/layers.rst
@@ -0,0 +1,7 @@
+fastreid.layers
+=========================
+
+.. automodule:: fastreid.layers
+    :members:
+    :undoc-members:
+    :show-inheritance:
diff --git a/docs/modules/modeling.rst b/docs/modules/modeling.rst
new file mode 100644
index 0000000..74b2966
--- /dev/null
+++ b/docs/modules/modeling.rst
@@ -0,0 +1,24 @@
+fastreid.modeling
+===========================
+
+.. automodule:: fastreid.modeling
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+Model Registries
+-----------------
+
+These are different registries provided in modeling.
+Each registry provide you the ability to replace it with your customized component,
+without having to modify fastreid's code.
+
+Note that it is impossible to allow users to customize any line of code directly.
+Even just to add one line at some place,
+you'll likely need to find out the smallest registry which contains that line,
+and register your component to that registry.
+
+
+.. autodata:: fastreid.modeling.BACKBONE_REGISTRY
+.. autodata:: fastreid.modeling.META_ARCH_REGISTRY
+.. autodata:: fastreid.modeling.REID_HEADS_REGISTRY
diff --git a/docs/modules/solver.rst b/docs/modules/solver.rst
new file mode 100644
index 0000000..bacab33
--- /dev/null
+++ b/docs/modules/solver.rst
@@ -0,0 +1,7 @@
+fastreid.solver
+=========================
+
+.. automodule:: fastreid.solver
+    :members:
+    :undoc-members:
+    :show-inheritance:
diff --git a/docs/modules/utils.rst b/docs/modules/utils.rst
new file mode 100644
index 0000000..58cce50
--- /dev/null
+++ b/docs/modules/utils.rst
@@ -0,0 +1,80 @@
+fastreid.utils
+========================
+
+fastreid.utils.colormap module
+--------------------------------
+
+.. automodule:: fastreid.utils.colormap
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+fastreid.utils.comm module
+----------------------------
+
+.. automodule:: fastreid.utils.comm
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+
+fastreid.utils.events module
+------------------------------
+
+.. automodule:: fastreid.utils.events
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+
+fastreid.utils.logger module
+------------------------------
+
+.. automodule:: fastreid.utils.logger
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+
+fastreid.utils.registry module
+--------------------------------
+
+.. automodule:: fastreid.utils.registry
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+fastreid.utils.memory module
+----------------------------------
+
+.. automodule:: fastreid.utils.memory
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+
+fastreid.utils.analysis module
+----------------------------------
+
+.. automodule:: fastreid.utils.analysis
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+
+fastreid.utils.visualizer module
+----------------------------------
+
+.. automodule:: fastreid.utils.visualizer
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+fastreid.utils.video\_visualizer module
+-----------------------------------------
+
+.. automodule:: fastreid.utils.video_visualizer
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/docs/requirements.txt b/docs/requirements.txt
new file mode 100644
index 0000000..54b184b
--- /dev/null
+++ b/docs/requirements.txt
@@ -0,0 +1,20 @@
+termcolor
+numpy
+tqdm
+docutils==0.16
+# https://github.com/sphinx-doc/sphinx/commit/7acd3ada3f38076af7b2b5c9f3b60bb9c2587a3d
+git+git://github.com/sphinx-doc/sphinx.git@7acd3ada3f38076af7b2b5c9f3b60bb9c2587a3d
+recommonmark==0.6.0
+sphinx_rtd_theme
+matplotlib
+termcolor
+yacs
+tabulate
+cloudpickle
+Pillow
+future
+requests
+six
+git+git://github.com/facebookresearch/fvcore.git
+https://download.pytorch.org/whl/cpu/torch-1.5.0%2Bcpu-cp37-cp37m-linux_x86_64.whl
+https://download.pytorch.org/whl/cpu/torchvision-0.6.0%2Bcpu-cp37-cp37m-linux_x86_64.whl