A method for time-resolved calculation of a deformation of a body, the method comprising: calculating a model of the body during the deformation, wherein the model of the body during the deformation is calculated based on an expected force application to the body during the deformation, wherein the deformation of the body is calculated by a numerical simulation based on a priori knowledge about the deformation and based on calculated morphological operators; calculating a predicted X-ray image for the body for a plurality of time points during the deformation based on the model; obtaining one measured X-ray image of the body each for the time points during the deformation; modifying the model based on the predicted X-ray images and the measured X-ray images, wherein the model is modified based on a difference between predicted positions of features on the predicted X-ray images and measured positions of corresponding features on the measured X-ray images, the modification of the model being directed to reduce the difference between the predicted positions of the features on the predicted X-ray images and the measured positions of the corresponding features on the measured X-ray images over the plurality of time points; and calculating the morphological operators for the deformation of the body based on the difference between the predicted and the measured positions of the features, wherein the modification of the model is based on the calculated morphological operators for the deformation of the body, wherein the a priori knowledge and the calculated morphological operators are used to adjust input parameters of the numerical simulation with respect to properties of a material of the body, with respect to acting forces, with respect to a geometry of the body, and/or with respect to velocities. calculating a model of the body during the deformation, wherein the model of the body during the deformation is calculated based on an expected force application to the body during the deformation, wherein the deformation of the body is calculated by a numerical simulation based on a priori knowledge about the deformation and based on calculated morphological operators; calculating a predicted X-ray image for the body for a plurality of time points during the deformation based on the model; obtaining one measured X-ray image of the body each for the time points during the deformation; modifying the model based on the predicted X-ray images and the measured X-ray images, wherein the model is modified based on a difference between predicted positions of features on the predicted X-ray images and measured positions of corresponding features on the measured X-ray images, the modification of the model being directed to reduce the difference between the predicted positions of the features on the predicted X-ray images and the measured positions of the corresponding features on the measured X-ray images over the plurality of time points; and calculating the morphological operators for the deformation of the body based on the difference between the predicted and the measured positions of the features, wherein the modification of the model is based on the calculated morphological operators for the deformation of the body, wherein the a priori knowledge and the calculated morphological operators are used to adjust input parameters of the numerical simulation with respect to properties of a material of the body, with respect to acting forces, with respect to a geometry of the body, and/or with respect to velocities.