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

Claim 0:
1. A computer-implemented method of assisting in calibrating an ultrasound probe, comprising:
acquiring image position data, describing a spatial transformation between a spatial position of ultrasound images acquired by the ultrasound probe and at least one of: a tracked spatial position of the ultrasound probe as determined via a medical tracking system and a spatial position of a housing of the ultrasound probe;
acquiring first image data, describing a first two-dimensional ultrasound image displaying a structure in a first image plane;
acquiring second image data, describing a second two-dimensional ultrasound image displaying the structure in a second image plane intersecting with the first image plane along an intersection line;
determining first intersection data based on the first image data and based on the spatial transformation described by the image position data, wherein the first intersection data describes image content of the first two-dimensional ultrasound image within a first linear intersection set of pixels along the intersection line that is defined by the intersecting first and second image planes;
determining second intersection data based on the second image data and based on the spatial transformation described by the image position data, wherein the second intersection data describes image content of the second two-dimensional ultrasound image within a second linear intersection set of pixels along the intersection line; and
determining similarity data based on the first intersection data and the second intersection data,
wherein the similarity data describes a grade of similarity between the image content of the first two-dimensional ultrasound image within the first linear intersection set of pixels and the image content of the second two-dimensional ultrasound image within the second linear intersection set of pixels.