jfloresf/mlstac-demo

cloudsen12

A dataset about clouds from Sentinel-2

CloudSEN12 is a LARGE dataset (~1 TB) for cloud semantic understanding that consists of 49,400 image patches (IP) that are evenly spread throughout all continents except Antarctica. Each IP covers 5090 x 5090 meters and contains data from Sentinel-2 levels 1C and 2A, hand-crafted annotations of thick and thin clouds and cloud shadows, Sentinel-1 Synthetic Aperture Radar (SAR), digital elevation model, surface water occurrence, land cover classes, and cloud mask results from six cutting-edge cloud detection algorithms. CloudSEN12 is designed to support both weakly and self-/semi-supervised learning strategies by including three distinct forms of hand-crafted labeling data: high-quality, scribble and no-annotation. For more details on how we created the dataset see our paper: CloudSEN12 - a global dataset for semantic understanding of cloud and cloud shadow in Sentinel-2.

ML-STAC Snippet

import mlstac
secret = 'https://huggingface.co/datasets/jfloresf/mlstac-demo/resolve/main/main.json'
train_db = mlstac.load(secret, framework='torch', stream=True, device='cpu')

Sensor: Sentinel2 - MSI

ML-STAC Task: TensorToTensor, TensorSegmentation

Data raw repository: https://cloudsen12.github.io/

Dataset discussion: https://github.com/IPL-UV/ML-STAC/discussions/2

Review mean score: 5.0

Split_strategy: random

Paper: https://www.nature.com/articles/s41597-022-01878-2

Data Providers

Name	Role	URL
Image & Signal Processing	['host']	https://isp.uv.es/
ESA	['producer']	https://www.esa.int/

Curators

Name	Organization	URL
Jair Flores	OEFA	http://jflores.github.io/

Reviewers

Name	Organization	URL	Score
Cesar Aybar	Image & Signal Processing	http://csaybar.github.io/	5

Labels

Name	Value
clear	0
thick-cloud	1
thin-cloud	2
cloud-shadow	3

Dimensions

input

Axis	Name	Description
0	C	Spectral bands
1	H	Height
2	W	Width

target

Axis	Name	Description
0	C	Hand-crafted labels
1	H	Height
2	W	Width

Spectral Bands

Name	Common Name	Description	Center Wavelength	Full Width Half Max	Index
B01	coastal aerosol	Band 1 - Coastal aerosol - 60m	443.5	17.0	0
B02	blue	Band 2 - Blue - 10m	496.5	53.0	1
B03	green	Band 3 - Green - 10m	560.0	34.0	2
B04	red	Band 4 - Red - 10m	664.5	29.0	3
B05	red edge 1	Band 5 - Vegetation red edge 1 - 20m	704.5	13.0	4
B06	red edge 2	Band 6 - Vegetation red edge 2 - 20m	740.5	13.0	5
B07	red edge 3	Band 7 - Vegetation red edge 3 - 20m	783.0	18.0	6
B08	NIR	Band 8 - Near infrared - 10m	840.0	114.0	7
B8A	red edge 4	Band 8A - Vegetation red edge 4 - 20m	864.5	19.0	8
B09	water vapor	Band 9 - Water vapor - 60m	945.0	18.0	9
B10	cirrus	Band 10 - Cirrus - 60m	1375.5	31.0	10
B11	SWIR 1	Band 11 - Shortwave infrared 1 - 20m	1613.5	89.0	11
B12	SWIR 2	Band 12 - Shortwave infrared 2 - 20m	2199.5	173.0	12