US 11,741,574 B2
Method and device for processing blood vessel image on basis of user input
Jihoon Kweon, Gyeonggi-do (KR); Young-Hak Kim, Seoul (KR); Kyo Seok Song, Seoul (KR); and Hwi Kwon, Seoul (KR)
Assigned to MEDIPIXEL, INC., Seoul (KR)
Appl. No. 17/924,679
Filed by MEDIPIXEL, INC., Seoul (KR)
PCT Filed Apr. 28, 2021, PCT No. PCT/KR2021/005374
§ 371(c)(1), (2) Date Nov. 10, 2022,
PCT Pub. No. WO2021/246648, PCT Pub. Date Dec. 9, 2021.
Claims priority of application No. 10-2020-0066266 (KR), filed on Jun. 2, 2020.
Prior Publication US 2023/0186433 A1, Jun. 15, 2023
Int. Cl. G06T 5/00 (2006.01); G06V 10/25 (2022.01); G06V 10/44 (2022.01); G06T 11/60 (2006.01)
CPC G06T 5/001 (2013.01) [G06T 11/60 (2013.01); G06V 10/25 (2022.01); G06V 10/44 (2022.01); G06T 2207/10116 (2013.01); G06T 2207/20104 (2013.01); G06T 2207/30101 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for processing a blood vessel image performed by a processor, comprising the steps of:
extracting a target blood vessel from a blood vessel image;
determining a region of interest (ROI) in an extraction result of the target blood vessel on the basis of a first input received from a user;
identifying a first error portion from the extraction result of the target blood vessel in response to the determining of the ROI and providing the user with a correction result of the first error portion; and
identifying and correcting a second error portion in the extraction result on the basis of a plurality of points of a second input received from the user in response to a case where the second input is detected from the plurality of points within the ROI where the first error portion is corrected,
wherein correcting the second error portion on the basis of the plurality of points further comprises:
determining a blood vessel branch located out of a region corresponding to the movement trajectory of the second input among the blood vessel branches connected with the branch point as a misidentification portion, in response to a case where the point corresponding to the second input moves to a region out of the target blood vessel from the branch point within the region extracted as the target blood vessel; and
replacing the blood vessel branch with a blood vessel branch indicated by the second input out of the target blood vessel and correcting the remaining extraction result on the basis of the replaced blood vessel branch.