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Multi-bone segmentation for 3D computed tomography

A tomography, computer technology, applied in computing, image analysis, image enhancement, etc., can solve problems such as inaccurate segmentation

Active Publication Date: 2015-10-07
SIEMENS IND SOFTWARE GMBH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Due to this overlapping error, the segmentation may be inaccurate

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  • Multi-bone segmentation for 3D computed tomography
  • Multi-bone segmentation for 3D computed tomography
  • Multi-bone segmentation for 3D computed tomography

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[0017] Provides automatic segmentation of multiple adjacent objects. Any object represented by computed tomography (CT) data can be segmented. For example, segment two different organs. In another example used in the embodiments discussed herein, adjacent bones are segmented. The locations represented by the CT data are marked as belonging to one or the other of the bones such as the tibia or femur. Segmentation of common multiple bones is automatically performed from three-dimensional (3D) CT images.

[0018] Automatic bone segmentation from 3D CT images is a useful but challenging task in many clinical applications. Specifically, when adjacent bones around human joints are very close or even touch each other, traditional bone segmentation methods are prone to overlap errors, especially if the bones are segmented individually. A fully automatic, computer efficient and accurate co-segmentation system for multiple bone segmentation is provided. In one embodiment, each bone...

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Abstract

Multiple object segmentation is performed for three-dimensional computed tomography. The adjacent objects are individually segmented. Overlapping regions or locations designated as belonging to both objects may be identified. Confidence maps for the individual segmentations are used to label the locations of the overlap as belonging to one or the other object, not both. This re-segmentation is applied for the overlapping local, and not other locations. Confidence maps in re-segmentation and application just to overlap locations may be used independently of each other or in combination.

Description

technical field [0001] The invention relates to a method and a computer readable medium for multiple bone segmentation for three-dimensional computed tomography according to the independent claims. [0002] The present disclosure relates generally to the field of computed tomography (CT), and more particularly to automated bone segmentation using computed tomography. Background technique [0003] CT scans the patient volume. Different objects may be adjacent to each other in the volume. CT data from scans represent two objects. Objects can be segmented to aid in diagnosis, planning or implant design. For example, segmentation of human bones from three-dimensional (3D) CT images is important for many clinical applications such as visualization enhancement, disease diagnosis, implant design, cutting-guided design, and surgical planning. A location or voxel associated with each object is determined. [0004] Especially in 3D, manual tracking of objects is time consuming. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG06T7/0079G06T7/0012G06T7/0081G06T7/0087G06T2207/10072G06T2207/20041G06T2207/20076G06T7/11G06T7/143
Inventor D.吴N.伯克贝克M.索夫卡M.刘S.K.周
Owner SIEMENS IND SOFTWARE GMBH
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