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Multimedia Comput. Commun. Appl."],"published-print":{"date-parts":[[2020,4,30]]},"abstract":"<jats:p>Aortic stent has been widely used in restoring vascular stenosis and assisting patients with cardiovascular disease. The effective visualization of aortic stent is considered to be critical to ensure the effectiveness and functions of the aortic stent in clinical practice. Volume rendering with ray casting has been used as an effective approach to enable the effective visualization of aortic stent. The volume rendering relies on the transfer function that converts the medical images into optical attributes including color and transparency. This article proposes a new transfer function, namely, the multi-dimensional transfer function, to provide additional transparency value of a voxel. The proposed approach using the additional transparency value effectively assists the distinguishing of tissues that have the same CT value. The transparency values are simultaneously determined by gray threshold and gray change threshold, which can recognize the unnecessary structures such as bones transparent. A series of experimental results demonstrate that the situation of aorta stent of a patient can be directly observed, and the angle of view can be switched arbitrarily. The proposed method provides a new way for the operation of a virtual endoscopy to reach the place of blood vessels that a traditional endoscopy fails to reach.<\/jats:p>","DOI":"10.1145\/3373358","type":"journal-article","created":{"date-parts":[[2020,6,22]],"date-time":"2020-06-22T02:49:20Z","timestamp":1592794160000},"page":"1-14","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["A New Transfer Function for Volume Visualization of Aortic Stent and Its Application to Virtual Endoscopy"],"prefix":"10.1145","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2100-0259","authenticated-orcid":false,"given":"Chenxi","family":"Huang","sequence":"first","affiliation":[{"name":"School of Informatics, Xiamen University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yisha","family":"Lan","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Technology, Tongji University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guokai","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Software Engineering, Tongji University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gaowei","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Technology, Tongji University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Landu","family":"Jiang","sequence":"additional","affiliation":[{"name":"School of Computer Science, McGill University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nianyin","family":"Zeng","sequence":"additional","affiliation":[{"name":"School of Aerospace Engineering, Xiamen University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jenhong","family":"Tan","sequence":"additional","affiliation":[{"name":"Institute of Systems Science, National University of Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"E. 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