The present invention relates to a method and to a device for visualizing objects, in particular non-rigid objects. The method and the device are particularly suitable to visualizing three-dimensional objects in the case of medical interventions.The method comprises: providing a three-dimensional image data record of the object, successively taking a series of two-dimensional image data records of the object, individually registering each individual two-dimensional image data record with the three-dimensional image data record, functionally evaluating functional parameters from the successively taken two-dimensional images, extracting two-dimensional projections from the three-dimensional image data record, and superimposing the recorded two-dimensional images with the extracted two-dimensional projections. A clean copy of the abstract that incorporates the above amendments is provided herewith on a separate page.