US 12,354,258 B2
Medical image processing apparatus and medical image processing method
Yanhua Wang, Beijing (CN); Bing Li, Beijing (CN); Qilin Xiao, Beijing (CN); Fuyue Wang, Beijing (CN); Gengwan Li, Beijing (CN); Lixin Yan, Beijing (CN); and Longfei Zhao, Beijing (CN)
Assigned to CANON MEDICAL SYSTEMS CORPORATION, Tochigi (JP)
Filed by CANON MEDICAL SYSTEMS CORPORATION, Tochigi (JP)
Filed on Jul. 26, 2022, as Appl. No. 17/814,904.
Claims priority of application No. 202110942799.6 (CN), filed on Aug. 17, 2021; and application No. 2022-098168 (JP), filed on Jun. 17, 2022.
Prior Publication US 2023/0058183 A1, Feb. 23, 2023
Int. Cl. G06T 7/00 (2017.01); G06T 11/00 (2006.01)
CPC G06T 7/0012 (2013.01) [G06T 11/00 (2013.01); G06T 2207/30101 (2013.01); G06T 2207/30172 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A medical image processing apparatus, comprising:
processing circuitry configured to:
generate two or more projection images by implementing a local intensity projection on each of two or more sets of two-dimensional images obtained from a plurality of two-dimensional images structuring three-dimensional volume data rendering a tubular organ;
obtain a mapping matrix of the local intensity projection with respect to each of the sets;
annotate the tubular organ in each of the projection images; and
identify the tubular organ in the three-dimensional volume data, by inversely mapping the tubular organ annotated in the projection images onto the three-dimensional volume data while using the mapping matrix corresponding to each of the sets.