PhotIQA: A photoacoustic image data set with image quality ratings

• URL: http://arxiv.org/abs/2507.03478v1
• Date: Fri, 04 Jul 2025 11:06:54 GMT
• Title: PhotIQA: A photoacoustic image data set with image quality ratings
• Authors: Anna Breger, Janek Gröhl, Clemens Karner, Thomas R Else, Ian Selby, Jonathan Weir-McCall, Carola-Bibiane Schönlieb,
• Abstract summary: PhotIQA is a data set consisting of 1134 reconstructed photoacoustic (PA) images rated by 2 experts across five quality properties.<n>Our baseline experiments show that HaarPSI$_med$ significantly outperforms SSIM in correlating with the quality ratings.
• Score: 7.753621023890248
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Image quality assessment (IQA) is crucial in the evaluation stage of novel algorithms operating on images, including traditional and machine learning based methods. Due to the lack of available quality-rated medical images, most commonly used IQA methods employing reference images (i.e. full-reference IQA) have been developed and tested for natural images. Reported application inconsistencies arising when employing such measures for medical images are not surprising, as they rely on different properties than natural images. In photoacoustic imaging (PAI), especially, standard benchmarking approaches for assessing the quality of image reconstructions are lacking. PAI is a multi-physics imaging modality, in which two inverse problems have to be solved, which makes the application of IQA measures uniquely challenging due to both, acoustic and optical, artifacts. To support the development and testing of full- and no-reference IQA measures we assembled PhotIQA, a data set consisting of 1134 reconstructed photoacoustic (PA) images that were rated by 2 experts across five quality properties (overall quality, edge visibility, homogeneity, inclusion and background intensity), where the detailed rating enables usage beyond PAI. To allow full-reference assessment, highly characterised imaging test objects were used, providing a ground truth. Our baseline experiments show that HaarPSI$_{med}$ significantly outperforms SSIM in correlating with the quality ratings (SRCC: 0.83 vs. 0.62). The dataset is publicly available at https://doi.org/10.5281/zenodo.13325196.

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