TACO - Dataset Ninja

Introduction #

Released 2019-06-10 ·Pedro F Proença, Pedro Simões

The TACO: Trash Annotations in Context is an open image dataset that focuses on waste in various real-world settings. It encompasses a collection of images depicting litter in diverse environments, ranging from tropical beaches to urban streets in places like London. The dataset is notable for its manual labeling and segmentation, providing a hierarchical taxonomy for object detection algorithms to train and evaluate their performance. It comprises 1,500 images that cover 60 distinct waste classes, including items like aluminum_foil, batterie, and aluminum_blister_pack.

TACO contains high-resolution images, taken mostly by mobile phones. These are managed and stored by Flickr, whereas the authors’ server manages the annotations and runs periodically a crawler to collect more potential images of litter. Additionally, the authors also selected some images from source. All images are under free copyright licenses and are annotated and segmented by users using online tool.

Distribution of image resolutions.

Specifically, images are labeled with the scene tags to describe their background – these are not mutually exclusive – and litter instances are segmented and labeled using a hierarchical taxonomy with 60 categories of litter which belong to 28 super (top) categories, including a special category: Unlabeled litter for objects that are either ambiguous or not covered by the other categories.

Proportion of images by background tag.

The authors targeted 9 super categories based on the number of instances and merged the rest under the class name Other Litter. Authors call this TACO-10 and the Figure below shows the size variability of annotations per category for this new taxonomy. Authors can see that most of the cigarettes, the third largest class, have an area of less than 64×64 pixels.

Histogram of bounding box sizes per category for TACO-10.

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Homepage

Research Paper

GitHub

Summary #

TACO: Trash Annotations in Context is a dataset for instance segmentation, semantic segmentation, and object detection tasks. It is used in the waste recycling industry.

The dataset consists of 1500 images with 9823 labeled objects belonging to 60 different classes including plastic_film, unlabeled_litter, cigarette, and other: clear_plastic_bottle, plastic_bottle_cap, other_plastic_wrapper, other_plastic, drink_can, plastic_straw, disposable_plastic_cup, other_carton, styrofoam_piece, glass_bottle, pop_tab, plastic_lid, normal_paper, paper_cup, metal_bottle_cap, single-use_carrier_bag, other_plastic_bottle, aluminium_foil, drink_carton, corrugated_carton, disposable_food_container, tissues, crisp_packet, plastic_utensils, rope&strings, and 32 more.

Images in the TACO 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 no pre-defined train/val/test splits in the dataset. Also the dataset includes batch and scene image-level tags, supercategory object tag. The dataset was released in 2019.

Here is a visualized example for randomly selected sample classes:

Explore #

TACO dataset has 1500 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.

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Have a look at 1500 images

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

Class balance #

There are 60 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 60

Class ㅤ	Images ㅤ	Objects ㅤ	Count on image average	Area on image average
plastic_film➔ any	310	957	3.09	6.18%
unlabeled_litter➔ any	269	1068	3.97	1%
cigarette➔ any	227	1336	5.89	0.24%
clear_plastic_bottle➔ any	225	576	2.56	4.42%
plastic_bottle_cap➔ any	185	419	2.26	0.54%
other_plastic_wrapper➔ any	184	583	3.17	4.4%
other_plastic➔ any	171	563	3.29	1.62%
drink_can➔ any	151	460	3.05	3.58%
plastic_straw➔ any	110	336	3.05	2.92%
disposable_plastic_cup➔ any	91	210	2.31	4.17%

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.

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 59

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
cigarette any	1336	0.06%	13.14%	0%	5px	0.2%	1039px	33.3%	57px	1.75%	11px	0.34%	1642px	39.47%
unlabeled_litter any	1068	0.37%	54.21%	0%	7px	0.29%	2584px	82.82%	129px	4.06%	13px	0.46%	2723px	82.08%
plastic_film any	957	3.11%	76.89%	0%	20px	0.48%	3189px	99.97%	420px	12.91%	23px	0.89%	3559px	92.44%
other_plastic_wrapper any	583	2.2%	58.36%	0%	18px	0.43%	3483px	83.73%	352px	10.37%	33px	1.01%	3125px	83.94%
clear_plastic_bottle any	576	2.75%	71.12%	0.01%	29px	1.1%	3996px	96.06%	450px	14.17%	34px	1.39%	3689px	88.68%
other_plastic any	563	0.73%	36.08%	0%	12px	0.49%	2008px	64.36%	194px	6.17%	13px	0.43%	2653px	63.77%
drink_can any	460	1.97%	34.16%	0%	22px	0.68%	2526px	60.72%	362px	11.57%	24px	0.76%	3083px	76.59%
plastic_bottle_cap any	419	0.4%	10.63%	0%	15px	0.38%	1219px	30.23%	150px	4.5%	14px	0.49%	1129px	37.78%
plastic_straw any	336	1.08%	44.6%	0%	7px	0.21%	2981px	71.66%	339px	10.03%	12px	0.65%	2146px	62.24%
broken_glass any	280	0.19%	12.48%	0%	14px	0.57%	1213px	37.16%	91px	2.76%	14px	0.46%	1097px	36.28%

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 9823 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 9823

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➔	plastic_bottle_cap any	batch_4_000000.JPG	3264 x 2448	66px	2.02%	71px	2.9%	0.04%
2➔	plastic_bottle_cap any	batch_4_000000.JPG	3264 x 2448	66px	2.02%	71px	2.9%	0.06%
3➔	rope&strings any	batch_10_000069.jpg	1824 x 4000	126px	6.91%	147px	3.67%	0.07%
4➔	rope&strings any	batch_10_000069.jpg	1824 x 4000	126px	6.91%	147px	3.67%	0.25%
5➔	other_plastic_cup any	batch_4_000026.JPG	3264 x 2448	241px	7.38%	470px	19.2%	0.61%
6➔	other_plastic_cup any	batch_4_000026.JPG	3264 x 2448	241px	7.38%	470px	19.2%	1.42%
7➔	plastic_film any	batch_4_000088.JPG	3264 x 2448	160px	4.9%	334px	13.64%	0.55%
8➔	plastic_film any	batch_4_000088.JPG	3264 x 2448	160px	4.9%	334px	13.64%	0.67%
9➔	plastic_film any	batch_4_000088.JPG	3264 x 2448	180px	5.51%	216px	8.82%	0.28%
10➔	plastic_film any	batch_4_000088.JPG	3264 x 2448	180px	5.51%	216px	8.82%	0.49%

License #

TACO: Trash Annotations in Context is under CC BY 4.0 license.

Source

Citation #

If you make use of the TACO data, please cite the following reference:

@article{taco2020,
  title={TACO: Trash Annotations in Context for Litter Detection},
  author={Pedro F Proença and Pedro Simões},
  journal={arXiv preprint arXiv:2003.06975},
  year={2020}
}

Source

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

@misc{ visualization-tools-for-taco-dataset,
  title = { Visualization Tools for TACO Dataset },
  type = { Computer Vision Tools },
  author = { Dataset Ninja },
  howpublished = { \url{ https://datasetninja.com/taco } },
  url = { https://datasetninja.com/taco },
  journal = { Dataset Ninja },
  publisher = { Dataset Ninja },
  year = { 2024 },
  month = { jul },
  note = { visited on 2024-07-27 },
}

Download #

Dataset TACO 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='TACO', 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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