Acta Optica Sinica, Volume. 39, Issue 7, 0715001(2019)
Corner Detection-Based Segmentation Algorithm of Bioresorbable Vascular Scaffold Strut Contours
According to the prior knowledge about obvious quadrilateral feature of bioresorbable vascular scaffold (BVS) struts in an intravascular optical coherence tomography (IVOCT) image, this study proposes a novel algorithm based on four corners of BVS struts to automatically obtain their contours in the IVOCT imaging system. It solves the problem that dynamic programming (DP) algorithm, which is a contour-based algorithm, is not sufficiently accurate because of the in uence of the fractures inside the struts and blood artifacts around the struts. Experimental results show that the proposed algorithm achieves an average Dice's coefficient of 0.88 for the strut segmentation areas, which is increased by approximately 0.08 compared to the result obtained by the DP algorithm. This algorithm can accurately and robustly segment BVS struts in the IVOCT image, and thus it can better assist doctors in the automatic strut malapposition analysis in clinical applications.
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Linlin Yao, Qinhua Jin, Jing Jing, Yundai Chen, Yihui Cao, Jianan Li, Rui Zhu. Corner Detection-Based Segmentation Algorithm of Bioresorbable Vascular Scaffold Strut Contours[J]. Acta Optica Sinica, 2019, 39(7): 0715001
Category: Machine Vision
Received: Jan. 15, 2019
Accepted: Mar. 21, 2019
Published Online: Jul. 16, 2019
The Author Email: Yao Linlin (yaolinlin16@mails.ucas.ac.cn), Zhu Rui (rzhu@vivo?light.com)