发明名称 |
Extraction of objects from CT images by sequential segmentation and carving |
摘要 |
Extracting objects from a computed tomography (CT) image, including: sequentially applying segmentation and carving on volumetric data of the objects in the CT image; and splitting and merging the segmented objects based on homogeneity of the objects in the CT image. |
申请公布号 |
US9123119(B2) |
申请公布日期 |
2015.09.01 |
申请号 |
US201213708912 |
申请日期 |
2012.12.07 |
申请人 |
TeleSecurity Sciences, Inc. |
发明人 |
Kwon Junghyun;Lee Jongkyu;Song Samuel M. |
分类号 |
G06T7/00 |
主分类号 |
G06T7/00 |
代理机构 |
Procopio, Cory, Hargreaves & Savitch, LLP |
代理人 |
Procopio, Cory, Hargreaves & Savitch, LLP |
主权项 |
1. A non-transitory computer readable medium containing instructions that when executed by a processor perform a method of extracting objects from a computed tomography (CT) image, the method comprising:
applying bilateral filtering to a volumetric data of the objects in the CT image; sequentially segmenting and carving the objects from the volumetric data of the objects in the CT image, wherein the objects are segmented and carved in the order of:
(1) homogeneous bulk objects, (2) homogeneous medium thickness objects, (3) homogeneous sheet objects, (4) homogeneous metallic objects, and (5) heterogeneous objects; adjusting object boundaries of the objects by level set-based active contours which include finding a contour represented by a level set function having an internal term related to contour smoothness and an external term related to image information; and splitting and merging the segmented objects based on homogeneity of the objects in the CT image. |
地址 |
Las Vegas NV US |