SD4EO - Physically Based Rendering images of crop fields (Sentinel-2 B2B3B4B8B11 & Sentinel-1 SAR)

This dataset contains part of the results of the SD4EO project, including images corresponding to the use case of crop fields identification. The dataset contains images that have been simulated corresponding to different sensors of the Sentinel 1 and Sentinel 2 satellites and regarding 9 different types of crops. Each image in the dataset includes pixel-level labels for each element present in the image, ensuring perfect accuracy due to the synthetic nature of the images. This eliminates common errors in manual or semi-automatic labeling processes.

Multispectral images included

Sentinel 1: SAR (Synthetic Aperture Radar) images.Sentinel 2: Images from bands 2, 3, 4, 8, and 11.

Image labeling

Crop

R

G

B

Alfalfa or lucerne

47

255

0

Barley

35

192

0

Fallow and bare soil

25

135

0

Oats

118

178

105

Other grain leguminous

38

79

29

Peas

44

217

70

Sunflower

78

123

68

Vetch

33

58

28

Wheat

130

255

102

Image name convention

The name convention follows the next schema of fields, separated by the character “_”

-          ID number

-          Meters per pixel resolution

-          Month

-          Type of image (Sentinel 2 band, Sentinel 1 SAR or labels): B2B3B4, B8, B11, SAR, labels

Image formats

TIFF format is used to save each band with floating point precision in the original range of the satellite images.

PNG format is used to display each band in normalized values [0..1].

Type of data

PNG range

TIFF range

B2

0 - 255

0 - 2000

B3

0 - 255

0 - 2500

B4

0 - 255

0 - 3000

B8

0 - 255

1180 - 5736

B11

0 - 255

859 - 5648

SAR

0 - 255

-31.45273 - -14.23931

Creation and funding

All the images have been generated using a tool developed in Unity. This tool will be soon available to enable the generation of new datasets.

This research work has been funded by the European Space Agency (ESA) under the FutureEO program and the SD4EO project (Contract No.: 4000142334/23/I-DT), supervised by the ESA Φ-lab.

License and attribution

This dataset is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

When using the images from this dataset, please attribute them as follows: "Synthetic images created by the research group ARTEC - IRTIC - University of Valencia".