2001-2002 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Chen, JK

Fan, YB

Jiang, WT

Mak, AFT

Pu, F

Zhang, M

PolyU Institutional Repository

?????????J Biomed Eng 　 2001; 18( 2)∶ 169～ 172　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　????????????????????*蒲　放 1　樊瑜波1,△　蒋文涛 1　张　明 2　麦福达 2　陈君楷11(四川大学 生物力学所 ,成都　 610065)2(香港理工大学 康复科技中心 ,香港九龙 )　　??　???????????????????、??????? ,????????????????????????????????????? OpenGL??????????????。????????????、??????????????????????????????????。 ??????、????、????、???? ,??????????????? ,???????????????????????????????。???　????????　????　????　 OpenGL3D Visualization and Information Interaction in Biomedical ApplicationsPu Fang1　 Fan Yubo1　 Jiang Wentao1　 Zhang Ming2　 Arthur F. T. Mak2　 Chen Junkai11(B iomechanics Laboratory, Sich uan University , Chengdu　 610065)2(Rehabil ita tion Engineerin g Centre, The Hong Kong Polytech nic Un iversity, Kowloon Hong Kong )　　 Abstract　 3D v isualization and v irtual r eality ar e impo rtant tr end in the development o f modern science andtechno log y, and as w ell in the studies on biomedical engineering. This pape r presents a computer pro cedure devel-oped for 3D v isualiza tion in biomedical applications. The biomedical models ar e constr uc ted in slice sequences basedon polyg on cells and information interaction is reali zed on the basis of Open GL selec tion mode in pa rticular consid-era tion o f the specia lities in this field such as i rregula rity in geometry and complex ity in ma terial etc. The so ftwa redeveloped has functions o f 3D model constr uction and visualiza tion, real-time modeling transfo rmation, info rma tioninter action and so on. It could serv e as useful pla tfo rm for 3D visualiza tion in biomedical engineering r esea rch.Key words　 Biomedica l model　　 Info rmation inter action　　 3D visualization　　 OpenGL1　?　????????????????????????????? ,???????????? ,???????????????????、??????????、?????????、???????????????????????????。???????? ,??????、??? ,????????????? ,?????????? ,??????????????????????* ???????????? ( 39870231? 19732003) ,?????? ( 98061011) ,?????? IGARD????△????? , ybfan@ mail. s c. cninfo. net?????????????????、?????????????????????????。?? ,?????????????????( 3D API)?????: Direct3D, QuicDraw 3D?OpenGL。 Direct3D???????????????? DirectX????? ,?????????? API,????? M S WIN DOWS????????? ,?????、????????????????? , Direct3D API???????-???( Hardwa re abst ract-emulation lay er) ,????????????? ,???????、???、 3D????????????????????? ,?? ,??????????????? CPU?????????? ,??????。 QuicDraw 3D?Apple???????? ,??????? Pow er-M ac?????????? API, QuicDraw 3DAPI??? QuicDraw 3D RAV E? ,? RAV E????????、???????? QuicDraw 3D??? ,???????????????? ,??QuicDraw 3D API????????????? ,?? , 3D??????? ,????????????。 OpenGL? Silicon Graphics Inc. ( SGI)???????????????????? 3D API,???????????? ,??? UN IX、 MSWIN DOWS、 X WIN DOWS、 O S /2?? Mac OS?????? ,?????????????? ,??Direct3D????? ,??????????? ,???????? 3D??????????? ,?? ,???????? ,??? 3D API? ,OpenGL????????????????。???? OpenGL????? ,??????????OpenGL???????????????????????????????????????。2　?????????2. 1　 OpenGL?????????????????? , OpenGL?????????? 2D? 3D???。???????????? ,??????? ,???????????????????????。?? ,?????????、?????????????????? , OpenGL??????、??、?????????????? ,????????? 6?:??? ,?????、??????? ;??? ,??????? ,????????????????????、????????? ;??? ,??????、??????? ;??? ,?????????????????、???? ; W IN DOWS??? ,???? OpenGL? WINDOWS,??? OpenGL???????? ; W IN 32API?? ,????????????? ,??? WINDOWS GDI?????。 OpenGL????????? 1:? 1　?? OpenGL?????Fig 1　 Procedures of using OpenGL2. 2　??????????????????????????? ,????????????? ,???????????? CT、 X— ray、 M RI??????、??????????????????????? ,??????????????????? ,??? ,?????????????????????????????。 ???????????????? ,???????????????????????????????: ???????????????????????????????? ,?????????????????OpenGL? API?????? ,?????? ,???????? ,??????? (????????? ) ,??、????????? ,?????????????? ;????????、??????????????? ,???????????????????????????? ,?? ,??????????? ,???????、??、???????????? ,?????? ,?? OpenGL??????? g lRota te ( Type angle, Type X,Type Y, Type Z) ,?????????? ,??????????????? ,????????????????? ,???????????????? ,???????。??????????????????????????????????????????????????????。　　???????????????? ,????????????????????。??????????????????????。 ?????????????????? ,?????????? ,?????? ,??????? ,???251? 2?　　　　　　　　　　　　　　　?　??。 　????????????????????? 2　???????Fig 2　 Def ini tion of rotation vector?????????????? ,????????????????????????。 ?????????? ,??????? ,???????????????? ,????????????????。2. 3　???????????????? ,?????????????? ,??????????????、???、???、???? ,??????????? ,?????????? ,????????????????? ,???????????????。??????????????? ,????????????????? ,??????????????? ,?????、???? ,??????????? ,?? ,????????????????。 ???????、????????? ,OpenGL?????????? ,?????????? ,????????? ,?????????? ,???、???????????????? ,?? ,?????? ,???????????????????????????????。3　???????????????????????????????? ,????、????、???????????????。???????? ,????????????????????、??、??、?????? ,????????????? ,???? OpenGL??????????????????。 ????、??????????OpenGL?????????。?????????? ,????????????? ,????????? ,???????????? ;???????????? , OpenGL??????? ,????????????? ,?????? , OpenGL???????????????????? (??????? ) ,????????? ,???????????、????????????????????????????、???????????????? ,?????? ,???????????????????????????????。 ??????????? 3:? 3　???????Fig 3　 Flow chart of selection mode?????????????????? ,???????????? ,??????????????、??、??????????????? ,????????????????、??、??????????????、???????? ,?? ,?????????????????。4　??????????????????????:( 1)??????????????????????????? ,?????? ,?????????????????????、?????????????? ,??????? ;( 2)???????、????????????? ;( 3)??????????、??、????????? ;( 4)?????????????????? ,252 　　　?? ?? ? ?? ??　　　　　　　　　　　　　　　　　　　　　? 18??????????????? ;( 5)??????????????? ;( 6)?????? ,??????????“??” ,???????? ;( 7)????????????? ,??????? ,????????????。??????????????:( 1) ?????????????????? ;( 2)???? ,???? ,???? ;( 3)????????????。? 4　????? 3D??Fig 4　 3D visualization of residual lower-l imb5　?　????? OpenGL????? ,??????????????????????。??????????、????????? ,?????? ,??????????????????????????、??????? ,????????????????????????。? ? ? ?1 Mason Woo, Jakie Neider, et al . OpenGL Programming Guide,ADDISON-WESLEY. 19992 Dave Sh reiner. OpenGL Reference Manual. ADDISON-WES-LEY. 19993 Bill Welsh . Model-based coding of Imag e. Ph D Dis sertation.Brit ish Telecom Research Lab. 19914 San tosh G. Zachariah , Joan E. Sanders. Au tomated HexahedralM esh Gen eration f rom Biomedical Image Data: Application inLim b Prosthetic. IEEE Transact ions On Reh abi lit ation Engi-neering. 1996; 4( 2)5 ?　? ,??? . ???? API?????? .????????? . 1999; 20( 5)(??: 2000-07-15)(??? 246? ;Cont inued form Pag e 246)3 Kas s M , W itkin A, Terzopoulos D, Snakes. Act ive Con tourModels. Int. J. Compu t. Vision. 1987; 3214 Yezzi A, Kichenas samy Jr S, Kumar A, et al . , A geom et ricsnake model for segmen tation of m edical imagery. IEEE Trans.On M edical Imaging, 1997, 4( 16) ; 1995 Cas t lem an KR. Digital Imag e Processing. ??:??????? , 1998; 453-4556 ??? .??????? .??:??????? , ?? , 1999.2; 200-2017 Dias JM B, Leitao JMN. Wall Posi ti on and Thickness Est ima-tion f rom Sequences of Ech ocardiographic Images. IEEE Trans.On Medical Im aging , 1996, 2( 15) ; 25(??: 2000-04-07)253? 2?　　　　　　　　　　　　　　　?　??。 　????????????????????

3D visualization and information interaction in biomedical applications

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