Urban Street: Branch - Dataset Ninja

Introduction #

Released 2022-09-24 ·Tingting Yang, Suyin Zhou, Zhijie Huanget al.

Authors introduce the Branch component for instance segmentation within The Tree Dataset of Urban Street, encompassing 1,485 high-resolution images distributed across 13 distinct classes (branch_of_albizia_julibrissin, branch_of_flowering_cherry etc.). This specific section is designed to facilitate the precise delineation and identification of individual tree instances within the urban landscape. With these comprehensive resources at your disposal, this subset empowers researchers and practitioners to delve deep into the detailed analysis of urban street greenery, offering a valuable resource for comprehensive instance segmentation studies. Automatic tree species identification can be used to realize autonomous street tree inventories and help people without botanical knowledge and experience to better understand the diversity and regionalization of different urban landscapes.

The Tree Dataset of Urban Street sub-datasets:

Classification:

Branch 1485 images, 13 classes (1.4G) (current dataset includes classification tags)
Trunk 7675 images, 29 classes (6.4G) (available on DatasetNinja)
Leaf 21127 images, 50 classes (13.6G) (available on DatasetNinja)
Tree 4804 images, 23 classes (4.3G) (available on DatasetNinja)
Fruit 4101 images, 29 classes (2.1G) (available on DatasetNinja)
Flower 2275 images, 17 classes (1.3G) (available on DatasetNinja)

Segmentation:

Tree 3949 images, 22 classes (7.9G) (available on DatasetNinja)
Branch 1485 images, 13 classes (3.1G) (current)
Trunk 7675 images, 29 classes (12.9G) (available on DatasetNinja)
Leaf 9763 images, 39 classes (10.2G) (available on DatasetNinja)

Detection:

Leaf 9763 images, 39 classes (11G) (available on DatasetNinja)

Examples of Urban Street: Branch (segmenation task).

About Tree Dataset of Urban Street

Annotations were performed in a fine-grained manner by using polygons (bitmap in supervisely) to outline individual objects. Authors assessed the performance of various vision algorithms on different classification and segmentation tasks, including tree species identification and instance segmentation.

The proposed dataset was designed to capture urban street trees with subtropical or temperate monsoon climates in China. Our data collection and annotation methods were carefully created to capture the high variability of street trees. From February to October 2022, tens of thousands of tree images were acquired with mobile devices, covering spring, summer, fall and winter in 10 cities.

Similar to Cityscapes (Cordts et al., 2016) (available on DatasetNinja) and ADE20K (Zhou et al., 2019) (available on DatasetNinja), authors divide each organ dataset into separate training (train), validation (val) and test (test) sets.

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Summary #

Tree Dataset of Urban Street: Branch is a dataset for instance segmentation, semantic segmentation, object detection, and classification tasks. It is used in the environmental industry.

The dataset consists of 1485 images with 1556 labeled objects belonging to 13 different classes including branch_of_flowering_cherry, branch_of_lagerstroemia_indica, branch_of_prunus_cerasifera_f._atropurpurea, and other: branch_of_liriodendron_chinense, branch_of_zelkova_serrata, branch_of_magnolia_liliflora_desr, branch_of_styphnolobium_japonicum, branch_of_triadica_sebifera, branch_of_ginkgo_biloba, branch_of_koelreuteria_paniculata, branch_of_salix_babylonica, branch_of_platanus, and branch_of_albizia_julibrissin.

Images in the Urban Street: Branch dataset have pixel-level instance segmentation annotations. Due to the nature of the instance segmentation task, it can be automatically transformed into a semantic segmentation (only one mask for every class) or object detection (bounding boxes for every object) tasks. All images are labeled (i.e. with annotations). There are 3 splits in the dataset: train (1193 images), val (149 images), and test (143 images). Also, the dataset includes classification_tag. The dataset was released in 2022 by the Zhejiang Agriculture and Forestry University.

Here are the visualized examples for the classes:

Explore #

Urban Street: Branch dataset has 1485 images. Click on one of the examples below or open "Explore" tool anytime you need to view dataset images with annotations. This tool has extended visualization capabilities like zoom, translation, objects table, custom filters and more. Hover the mouse over the images to hide or show annotations.

Sample annotation mask from Urban Street: Branch

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Have a look at 1485 images

View images along with annotations and tags, search and filter by various parameters

Class balance #

There are 13 annotation classes in the dataset. Find the general statistics and balances for every class in the table below. Click any row to preview images that have labels of the selected class. Sort by column to find the most rare or prevalent classes.

Rows 1-10 of 13

Class ㅤ	Images ㅤ	Objects ㅤ	Count on image average	Area on image average
branch_of_flowering_cherry➔ mask	173	175	1.01	16.77%
branch_of_lagerstroemia_indica➔ mask	142	145	1.02	11.38%
branch_of_prunus_cerasifera_f._atropurpurea➔ mask	132	132	1	15.34%
branch_of_liriodendron_chinense➔ mask	131	158	1.21	6.29%
branch_of_zelkova_serrata➔ mask	115	117	1.02	10.25%
branch_of_magnolia_liliflora_desr➔ mask	106	106	1	6.73%
branch_of_styphnolobium_japonicum➔ mask	102	103	1.01	5.31%
branch_of_triadica_sebifera➔ mask	101	103	1.02	6.48%
branch_of_koelreuteria_paniculata➔ mask	100	100	1	9.97%
branch_of_ginkgo_biloba➔ mask	100	106	1.06	3.93%

Co-occurrence matrix #

Co-occurrence matrix is an extremely valuable tool that shows you the images for every pair of classes: how many images have objects of both classes at the same time. If you click any cell, you will see those images. We added the tooltip with an explanation for every cell for your convenience, just hover the mouse over a cell to preview the description.

Images #

Explore every single image in the dataset with respect to the number of annotations of each class it has. Click a row to preview selected image. Sort by any column to find anomalies and edge cases. Use horizontal scroll if the table has many columns for a large number of classes in the dataset.

Object distribution #

Interactive heatmap chart for every class with object distribution shows how many images are in the dataset with a certain number of objects of a specific class. Users can click cell and see the list of all corresponding images.

Class sizes #

The table below gives various size properties of objects for every class. Click a row to see the image with annotations of the selected class. Sort columns to find classes with the smallest or largest objects or understand the size differences between classes.

Rows 1-10 of 13

Class	Object count	Avg area	Max area	Min area	Min height	Min height	Max height	Max height	Avg height	Avg height	Min width	Min width	Max width	Max width
branch_of_flowering_cherry mask	175	16.58%	49.48%	0.42%	426px	10.57%	4032px	100%	3148px	78.08%	704px	23.28%	3024px	100%
branch_of_liriodendron_chinense mask	158	5.21%	17.88%	0%	47px	1.17%	4032px	100%	3065px	76.56%	80px	2.65%	3024px	100%
branch_of_lagerstroemia_indica mask	145	11.14%	49.52%	1.23%	1563px	38.76%	4032px	100%	3462px	85.87%	969px	32.04%	3024px	100%
branch_of_prunus_cerasifera_f._atropurpurea mask	132	15.34%	38.2%	2.57%	2499px	61.98%	4031px	99.98%	3521px	87.33%	1256px	41.53%	3024px	100%
branch_of_platanus mask	121	5.72%	19.26%	0.52%	944px	23.41%	4031px	99.98%	2537px	68.49%	485px	12.03%	3023px	100%
branch_of_zelkova_serrata mask	117	10.08%	46.04%	0.01%	115px	2.85%	4032px	100%	3652px	90.58%	150px	4.96%	3024px	100%
branch_of_magnolia_liliflora_desr mask	106	6.73%	14.29%	1.91%	2464px	61.11%	4026px	99.85%	3541px	87.82%	1166px	38.56%	3023px	99.97%
branch_of_ginkgo_biloba mask	106	3.7%	9.3%	0.07%	219px	5.43%	4032px	100%	3177px	78.8%	417px	13.79%	3022px	99.93%
branch_of_triadica_sebifera mask	103	6.35%	24.47%	0.64%	1072px	26.59%	4028px	99.9%	3300px	83.46%	893px	23.34%	3024px	100%
branch_of_styphnolobium_japonicum mask	103	5.26%	14.75%	0.93%	1343px	33.31%	4031px	99.98%	3120px	77.58%	716px	23.68%	3022px	99.93%

Spatial Heatmap #

The heatmaps below give the spatial distributions of all objects for every class. These visualizations provide insights into the most probable and rare object locations on the image. It helps analyze objects' placements in a dataset.

Objects #

Table contains all 1556 objects. Click a row to preview an image with annotations, and use search or pagination to navigate. Sort columns to find outliers in the dataset.

Rows 1-10 of 1556

Object ID ㅤ	Class ㅤ	Image name click row to open	Image size height x width	Height ㅤ	Height ㅤ	Width ㅤ	Width ㅤ	Area ㅤ
1➔	branch_of_lagerstroemia_indica mask	Lagerstroemia indica_branch_1 (138).jpg	4032 x 3024	3386px	83.98%	1398px	46.23%	6.45%
2➔	branch_of_styphnolobium_japonicum mask	Styphnolobium japonicum_branch_1 (101).jpg	4032 x 3024	3729px	92.49%	2243px	74.17%	6.72%
3➔	branch_of_zelkova_serrata mask	Zelkova serrata_branch_1 (105).jpg	4032 x 3024	3595px	89.16%	2893px	95.67%	10.27%
4➔	branch_of_triadica_sebifera mask	Triadica sebifera_branch_1 (101).jpg	4032 x 3024	4010px	99.45%	2516px	83.2%	8.28%
5➔	branch_of_flowering_cherry mask	Flowering cherry_branch_1 (166).jpg	4032 x 3024	4027px	99.88%	3022px	99.93%	22.06%
6➔	branch_of_styphnolobium_japonicum mask	Styphnolobium japonicum_branch_1 (100).jpg	4032 x 3024	3725px	92.39%	3022px	99.93%	8.19%
7➔	branch_of_ginkgo_biloba mask	Ginkgo biloba_branch_1 (91).jpg	4032 x 3024	3436px	85.22%	1260px	41.67%	3.33%
8➔	branch_of_flowering_cherry mask	Flowering cherry_branch_1 (164).jpg	4032 x 3024	4025px	99.83%	3024px	100%	30.27%
9➔	branch_of_salix_babylonica mask	Salix babylonica_branch_1 (93).jpg	2458 x 2206	2427px	98.74%	1915px	86.81%	11.96%
10➔	branch_of_lagerstroemia_indica mask	Lagerstroemia indica_branch_1 (133).jpg	4032 x 3024	3826px	94.89%	2898px	95.83%	13.55%

License #

Tree Dataset of Urban Street: Branch is under GNU LGPL 3.0 license.

Source

Citation #

If you make use of the Urban Street: Branch data, please cite the following reference:

@dataset{Urban Street: Branch,
  author={Tingting Yang and Suyin Zhou and Zhijie Huang and Aijun Xu and Junhua Ye and Jianxin Yin},
  title={Tree Dataset of Urban Street: Branch},
  year={2022},
  url={https://ytt917251944.github.io/dataset_jekyll/}
}

Source

If you are happy with Dataset Ninja and use provided visualizations and tools in your work, please cite us:

@misc{ visualization-tools-for-urban-street-branch-dataset,
  title = { Visualization Tools for Urban Street: Branch Dataset },
  type = { Computer Vision Tools },
  author = { Dataset Ninja },
  howpublished = { \url{ https://datasetninja.com/urban-street-branch } },
  url = { https://datasetninja.com/urban-street-branch },
  journal = { Dataset Ninja },
  publisher = { Dataset Ninja },
  year = { 2024 },
  month = { nov },
  note = { visited on 2024-11-21 },
}

Download #

Dataset Urban Street: Branch can be downloaded in Supervisely format:

As an alternative, it can be downloaded with dataset-tools package:

pip install --upgrade dataset-tools

… using following python code:

import dataset_tools as dtools

dtools.download(dataset='Urban Street: Branch', dst_dir='~/dataset-ninja/')

Make sure not to overlook the python code example available on the Supervisely Developer Portal. It will give you a clear idea of how to effortlessly work with the downloaded dataset.

The data in original format can be downloaded here.

. . .

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