The H2OPM Image Registration Dataset is a dataset for the evaluation of (groupwise) registration methods. It consists of 8 reference ortho-photo maps (OPMs) of urban and non-urban areas in Austria. For each reference image, 3-11 historical aerial images captured between May 1943 and May 1945 are available, leading to a total of 42 image pairs. In order to evaluate the registration accuracy, manually selected ground truth correspondences between the historical images and the OPM are provided.
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All images have been scale-normalized to a spatial resolution of 1m . However, for the historical images scale information could only approximated, the actual scale of the images might be actually off up to 30%.
Reference OPM images are named “ref_i.png” (i=reference image number, 1..8).
Corresponding historical images are named “image_i_j.png” (j=historical image number). For example, “image_2_4.png” is the fourth out of five historical images that could be registered to reference image “ref_2.png”.
Ground truth control points are given in the text files “CP_i_j.txt”. Each row of the text file describes one control point pair with values x1,y1,x2,y2. The origin of the coordinate system is the top left of the image, x-axis points right, y-axis points down.
The dataset is used for evaluation in the following paper:
Zambanini S. “Feature-based groupwise registration of historical aerial images to present-day ortho-photo maps“, Pattern Recognition, 90:66-77, June 2019. (arXiv)
Please cite this paper when publishing results on the dataset.