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https://github.com/PatBall1/detectree2

Python package for automatic tree crown delineation based on the Detectron2 implementation of Mask R-CNN
https://github.com/PatBall1/detectree2

deep-learning detectron2 python pytorch

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Python package for automatic tree crown delineation based on the Detectron2 implementation of Mask R-CNN

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README

        


predictions
predictions

[![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/licenses/MIT) [![Detectree CI](https://github.com/patball1/detectree2/actions/workflows/python-ci.yml/badge.svg)](https://github.com/patball1/detectree2/actions/workflows/python-ci.yml) [![PEP8](https://img.shields.io/badge/code%20style-pep8-orange.svg)](https://www.python.org/dev/peps/pep-0008/) [![DOI](https://zenodo.org/badge/470698486.svg)](https://zenodo.org/badge/latestdoi/470698486)

Python package for automatic tree crown delineation based on Mask R-CNN. Pre-trained models can be picked in the [`model_garden`](https://github.com/PatBall1/detectree2/tree/master/model_garden).
A tutorial on how to prepare data, train models and make predictions is available [here](https://patball1.github.io/detectree2/tutorial.html). For questions, collaboration proposals and requests for data email [James Ball](mailto:[email protected]). Some example data is available for download [here](https://doi.org/10.5281/zenodo.8136161).

Detectree2是一个基于Mask R-CNN的自动树冠检测与分割的Python包。您可以在[`model_garden`](https://github.com/PatBall1/detectree2/tree/master/model_garden)中选择预训练模型。[这里](https://patball1.github.io/detectree2/tutorial.html)提供了如何准备数据、训练模型和进行预测的教程。如果有任何问题,合作提案或者需要样例数据,可以邮件联系[James Ball](mailto:[email protected])。一些示例数据可以在[这里](https://doi.org/10.5281/zenodo.8136161)下载。

| | Code developed by James Ball, Seb Hickman, Thomas Koay, Oscar Jiang, Luran Wang, Panagiotis Ioannou, James Hinton and Matthew Archer in the [Forest Ecology and Conservation Group](https://coomeslab.org/) at the University of Cambridge. The Forest Ecology and Conservation Group is led by Professor David Coomes and is part of the University of Cambridge [Conservation Research Institute](https://www.conservation.cam.ac.uk/). |
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> [!NOTE]
> To save bandwidth, trained models have been moved to [Zenodo](https://zenodo.org/records/10522461). Download models directly with `wget` or equivalent.

## Citation

Please cite this article if you use _detectree2_ in your work:

Ball, J.G.C., Hickman, S.H.M., Jackson, T.D., Koay, X.J., Hirst, J., Jay, W., Archer, M., Aubry-Kientz, M., Vincent, G. and Coomes, D.A. (2023),
Accurate delineation of individual tree crowns in tropical forests from aerial RGB imagery using Mask R-CNN.
*Remote Sens Ecol Conserv*. 9(5):641-655. [https://doi.org/10.1002/rse2.332](https://doi.org/10.1002/rse2.332)

## Independent validation

Independent validation has been performed on a temperate deciduous forest in Japan.

> *Detectree2 (F1 score: 0.57) outperformed DeepForest (F1 score: 0.52)*
>
> *Detectree2 could estimate tree crown areas accurately, highlighting its potential and robustness for tree detection and delineation*

Gan, Y., Wang, Q., and Iio, A. (2023).
Tree Crown Detection and Delineation in a Temperate Deciduous Forest from UAV RGB Imagery Using Deep Learning Approaches: Effects of Spatial Resolution and Species Characteristics.
*Remote Sensing*. 15(3):778. [https://doi.org/10.3390/rs15030778](https://doi.org/10.3390/rs15030778)

## Requirements

- Python 3.8+
- [gdal](https://gdal.org/download.html) geospatial libraries
- [PyTorch ≥ 1.8 and torchvision](https://pytorch.org/get-started/previous-versions/) versions that match
- For training models GPU access (with CUDA) is recommended

e.g.
```pip3 install torch torchvision torchaudio```

## Installation

### pip

```pip install git+https://github.com/PatBall1/detectree2.git```

Currently works on Google Colab (Pro version recommended). May struggle on clusters if geospatial libraries are not configured.
See [Installation Instructions](https://patball1.github.io/detectree2/installation.html) if you are having trouble.

### conda

*Under development*

## Getting started

Detectree2, based on the [Detectron2](https://github.com/facebookresearch/detectron2) Mask R-CNN architecture, locates
trees in aerial images. It has been designed to delineate trees in challenging dense tropical forests for a range of
ecological applications.

This [tutorial](https://patball1.github.io/detectree2/tutorial.html) takes you through the key steps.
[Example Colab notebooks](https://github.com/PatBall1/detectree2/tree/master/notebooks/colab) are also available but are
not updated frequently so functions and parameters may need to be adjusted to get things working properly.

The standard workflow includes:

1) Tile the orthomosaics and crown data (for training, validation and testing)
2) Train (and tune) a model on the training tiles
3) Evaluate the model performance by predicting on the test tiles and comparing to manual crowns for the tiles
4) Using the trained model to predict the crowns over the entire region of interest

Training crowns are used to teach the network to delineate tree crowns.


predictions
predictions

Here is an example image of the predictions made by Detectree2.


predictions

## Applications

### Tracking tropical tree growth and mortality


predicting

### Counting urban trees (Buffalo, NY)


predicting

### Multi-temporal tree crown segmentation


predicting

### Liana detection and infestation mapping

*In development*


predicting

### Tree species identification and mapping

*In development*

## To do

- Functions for multiple labels vs single "tree" label

## Project Organization

```
├── LICENSE
├── Makefile
├── README.md
├── detectree2
│   ├── data_loading
│   ├── models
│   ├── preprocessing
│   ├── R
│   └── tests
├── docs
│   └── source
├── model_garden
├── notebooks
│   ├── colab
│   ├── colabJB
│   ├── colabJH
│   ├── colabKoay
│   ├── colabPan
│   ├── colabSeb
│   ├── exploratory
│   ├── mask_rcnn
│   │   ├── testing
│   │   └── training
│   ├── reports
│   └── turing
├── report
│   ├── figures
│   └── sections
└── requirements
```

## Code formatting

To automatically format your code, make sure you have `black` installed (`pip install black`) and call
```black .```
from within the project directory.

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Copyright (c) 2022, James G. C. Ball