Patent ID: 11911223
Assignee: BRAINLAB AG
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 10:
11. The method according to claim 1, wherein determining the similarity data involves determining similarity between the image contents of the first two-dimensional ultrasound image and the second two-dimensional ultrasound image, comprising the following steps:
determining first signal data and second signal data based on the first two-dimensional ultrasound image and on the second two-dimensional ultrasound image, respectively, wherein the first signal data and the second signal data describes a one-dimensional signal derived from the first two-dimensional ultrasound image and the second two-dimensional ultrasound image, respectively;
determining first signal band data and second signal band data based on the first signal data and the second signal data, respectively, wherein the first signal band data and the second signal band data describes a plurality of band signals assigned to different frequency bands, into which the one-dimensional signal is decomposed into;
determining first modelling data and second modelling data based on the first signal band data and the second signal band data, respectively, describing features of a band signal; and
determining similarity data based on the first modelling data and second modelling data, describing a grade of similarity between at least one feature of corresponding band signals derived from of the first two-dimensional ultrasound image and from the second two-dimensional ultrasound image, respectively.