US 12,333,733 B2
Computer-implemented method for segmenting measurement data from a measurement of an object
Christoph Poliwoda, Heidelberg (DE)
Assigned to VOLUME GRAPHICS GMBH, Heidelberg (DE)
Appl. No. 17/778,798
Filed by Volume Graphics GmbH, Heidelberg (DE)
PCT Filed Nov. 18, 2020, PCT No. PCT/EP2020/082537
§ 371(c)(1), (2) Date May 20, 2022,
PCT Pub. No. WO2021/099385, PCT Pub. Date May 27, 2021.
Claims priority of application No. 10 2019 131 437.2 (DE), filed on Nov. 21, 2019.
Prior Publication US 2022/0414890 A1, Dec. 29, 2022
Int. Cl. G06T 7/136 (2017.01); G06T 7/187 (2017.01)
CPC G06T 7/136 (2017.01) [G06T 7/187 (2017.01); G06T 2207/10081 (2013.01); G06T 2207/20092 (2013.01); G06T 2207/30108 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A computer-implemented method for segmenting measurement data from a computer tomographic measurement of an object, wherein the object has at least one material transition region between two specific materials, wherein the measurement data are used to generate a digital object representation having the at least one material transition region between two specific materials, wherein the digital object representation has a multiplicity of spatially resolved image information items relating to the object, wherein the method has the following steps of:
determining the measurement data;
segmenting at least two homogeneous regions in the digital object representation; and
determining the position of at least one material transition region between the at least two homogeneous regions;
before segmenting at least two homogeneous regions in the digital object representation, the method has the following step of:
creating a label field which defines the homogeneous regions by means of spatially resolved label values in the measurement data and/or the digital object representation;
wherein at least one distance value of a distance field is assigned to each label value,
wherein a distance value represents a shortest distance to a nearest interface of a homogeneous region, and
wherein the step of segmenting the digital object representation is carried out on the basis of the label field and the distance field.