Patent ID: 11900524
Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  A | IPC A  G

Claim 0:
1. A method, comprising:
receiving a three-dimensional (3D) ultrasound image of at least a portion of an organ including a cavity, the image comprising voxels having respective values; and
identifying a wall of the cavity in the image, by applying the following steps to the image:
positioning one or more virtual solid objects of predefined sizes and shapes inside one or more respective sub-volumes of the cavity that are each enclosed within an interior of the cavity;
moving the one or more virtual solid objects inside the cavity according to a predefined rule of motion;
while the one or more virtual solid objects move inside the cavity, adapting pixel values of the voxels that are traversed by the virtual solid objects to a predefined value indicative of a color of the interior of the cavity;
in response to detecting that a virtual solid object comes into contact with a wall of the cavity, rolling the virtual solid object over the wall, and adapting pixel values of a surface of the virtual solid object to match pixel values of the voxels over which the surface rolls; and converting the adapted voxel values that are lower than a threshold voxel value into the predefined value indicative of the color of the interior.