BTAD - Dataset Ninja

Introduction #

Pankaj Mishra, Riccardo Verk, Daniele Fornasieret al.

The authors of the BTAD: beanTech Anomaly Detection dataset introduce a novel transformer-based image anomaly detection and localization network VT-ADL. The BTAD dataset comprises real-world industrial anomaly data and consists of RGB images depicting three distinct industrial products. product_1 features images with dimensions of 1600×1600 pixels, product_2 with 600×600 pixels, and product_3 with 800 × 600 pixels. Training data for Products 1, 2, and 3 comprises 400, 1000, and 399 images, respectively. During training, all images are initially scaled to a size of 512 pixels. For each anomalous image, a pixel-wise ground truth mask is meticulously provided.

In the realm of computer vision, anomalies refer to any image or image segment that exhibits significant deviations from predefined normal characteristics. Anomaly detection involves identifying these novel samples, either through supervised or unsupervised methods. There is a considerable demand for intelligent anomaly detection systems, given their wide-ranging applications, spanning from video surveillance and defect segmentation to quality control, medical imaging, and financial transaction monitoring. Notably, anomaly detection holds particular significance in the industrial sector, where it can facilitate the automated identification of defective products.

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Research Paper

Kaggle

Summary #

BTAD: beanTech Anomaly Detection Dataset is a dataset for instance segmentation, semantic segmentation, object detection, and semi supervised learning tasks. It is used in the manufacturing industry, and in the anomaly detection research.

The dataset consists of 2540 images with 691 labeled objects belonging to 3 different classes including product_2, product_1, and product_3.

Images in the BTAD 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. There are 2261 (89% of the total) unlabeled images (i.e. without annotations). There are 2 splits in the dataset: train (1799 images) and test (741 images). Alternatively, the dataset could be split into 2 image sets: ok (2250 images) and ko (290 images). The dataset was released in 2021 by the beanTech, Italy and University of Udine, Italy.

Explore #

BTAD dataset has 2540 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 2540 images

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

Class balance #

There are 3 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 1-3 of 3

Class ㅤ	Images ㅤ	Objects ㅤ	Count on image average	Area on image average
product_2➔ mask	199	496	2.49	6.32%
product_1➔ mask	49	161	3.29	4.65%
product_3➔ mask	31	34	1.1	2.94%

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 1-3 of 3

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
product_2 mask	496	2.53%	66.73%	0.02%	2px	0.33%	596px	99.33%	47px	7.75%	36px	6%	580px	96.67%
product_1 mask	161	1.42%	13.39%	0%	11px	0.69%	1600px	100%	322px	20.09%	1px	0.06%	1548px	96.75%
product_3 mask	34	2.68%	13.16%	0.11%	17px	2.83%	392px	65.33%	154px	25.64%	33px	4.12%	604px	75.5%

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 691 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 691

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➔	product_1 mask	01_ko_0034.bmp	1600 x 1600	360px	22.5%	230px	14.38%	0.68%
2➔	product_1 mask	01_ko_0034.bmp	1600 x 1600	48px	3%	72px	4.5%	0.07%
3➔	product_2 mask	02_ko_0088.png	600 x 600	6px	1%	74px	12.33%	0.1%
4➔	product_2 mask	02_ko_0003.png	600 x 600	149px	24.83%	155px	25.83%	2.75%
5➔	product_2 mask	02_ko_0003.png	600 x 600	11px	1.83%	139px	23.17%	0.24%
6➔	product_2 mask	02_ko_0194.png	600 x 600	21px	3.5%	169px	28.17%	0.68%
7➔	product_2 mask	02_ko_0194.png	600 x 600	122px	20.33%	235px	39.17%	5.73%
8➔	product_2 mask	02_ko_0136.png	600 x 600	6px	1%	84px	14%	0.11%
9➔	product_1 mask	01_ko_0007.bmp	1600 x 1600	1271px	79.44%	1002px	62.62%	3.62%
10➔	product_1 mask	01_ko_0007.bmp	1600 x 1600	181px	11.31%	164px	10.25%	0.2%

License #

BTAD: beanTech Anomaly Detection Dataset is under CC BY-SA 4.0 license.

Source

Citation #

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

@inproceedings{
  mishra21-vt-adl,
  author = {Mishra, Pankaj and Verk, Riccardo and Fornasier, Daniele and Piciarelli, Claudio and Foresti, Gian Luca},
  title = {{VT-ADL}: A Vision Transformer Network for Image Anomaly Detection and Localization},
  booktitle = {30th IEEE/IES International Symposium on Industrial Electronics (ISIE)},
  year = {2021},
  month = {June},
  location = {Kyoto, Japan}
}

Source

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

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

Download #

Dataset BTAD 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='BTAD', 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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