US 9,811,912 B2
Image processing apparatus, image processing method and medical imaging device
Jia Wu, Beijing (CN); Tatsuo Maeda, Nasushiobara (JP); and Yanli Wang, Beijing (CN)
Assigned to Toshiba Medical Systems Corporation, Otawara-shi (JP)
Filed by Toshiba Medical Systems Corporation, Otawara-shi (JP)
Filed on May 14, 2014, as Appl. No. 14/277,368.
Claims priority of application No. 2013 1 0177532 (CN), filed on May 14, 2013.
Prior Publication US 2014/0341426 A1, Nov. 20, 2014
Int. Cl. G06T 7/155 (2017.01); G06T 7/187 (2017.01); G06T 7/00 (2017.01); G06T 7/11 (2017.01); G06T 7/174 (2017.01)
CPC G06T 7/0081 (2013.01) [G06T 7/11 (2017.01); G06T 7/155 (2017.01); G06T 7/174 (2017.01); G06T 7/187 (2017.01); G06T 2207/10072 (2013.01); G06T 2207/20036 (2013.01); G06T 2207/20044 (2013.01); G06T 2207/30101 (2013.01); G06T 2207/30172 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An image processing apparatus, comprising:
a memory configured to store a volume image of a three-dimensional region of a subject; and
processing circuitry configured to
generate a plurality of slice images corresponding to a plurality of slices each substantially perpendicular to a predetermined reference axis from the volume image,
extract a target region from the plurality of slice images,
detect an end point from the extracted region, and
extract a tubular structure based on the end point,
wherein the processing circuitry is further configured to extract the tubular structure through
obtaining a first fused part of a tree-shaped tubular structure by fusing a first tree-shaped tubular structure together with a first part of candidate data based on spatial continuity of the first tree-shaped tubular structure, the first tree-shaped tubular structure being obtained by using first region growing, and the candidate data being obtained by using grayscale morphological reconstruction,
after obtaining the first fused part of the tree-shaped tubular structure, recognizing a twig of the obtained first fused part of tree-shaped tubular structure,
performing second region growing by using the twig to obtain an extended branch, and
obtaining a second fused part of the tree-shaped tubular structure by fusing the extended branch together with a second part of the candidate data based on spatial continuity of the extended branch.