Computer-implemented method for determining the scatter radiation contribution to an evaluation image, evaluation device, computer program and electronically readable data carrier

Abstract

The invention relates to a computer-implemented method for determining the scatter radiation contribution to an evaluation image (47) acquired with an X-ray device (57), comprising the following steps: - providing at least one encoder (35) of a trained detection function (34), which includes the encoder (35) that provides a feature vector (38) in a latent space for an X-ray image provided as input data, and a decoder (36) that determines an output image (39) describing the scatter radiation contribution in the X-ray image from the feature vector (38); - providing an evaluation database (33) in which reference data sets (45) are stored, which for each training data set with which the detection function (34) was trained each comprise at least: - the training scatter radiation image (40) of the training data set indicating the basic truth, and - the feature vector (38) for the training data set.- Applying the encoder (35) to the evaluation image (47) to determine a feature vector (38) of the evaluation image (47), - Comparing the feature vector (38) of the evaluation image (47) with the feature vectors (38) of the reference data sets (45) to determine at least one reference data set (45) with the most similar feature vector (38) from the evaluation database (44), and - Determining a scatter radiation image (46) for the evaluation image (47) from the training scatter radiation images (40) of the at least one determined reference data set (45).

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