计算机应用与软件
計算機應用與軟件
계산궤응용여연건
COMPUTER APPLICATIONS AND SOFTWARE
2014年
10期
197-201,219
,共6页
周学礼%万旺根%王亚男%李金博
週學禮%萬旺根%王亞男%李金博
주학례%만왕근%왕아남%리금박
网格切割%切割平板%矩阵变换%锯齿效应
網格切割%切割平闆%矩陣變換%鋸齒效應
망격절할%절할평판%구진변환%거치효응
Mesh cutting%Cutting plane%Matrix transformation%Sawtooth effect
针对心内膜三维标测系统中心内膜模型网格切割模块,提出一种新的交互式网格切割算法。系统在载入心内膜三维几何模型后初始化切割平板模型,由用户交互移动切割平板和旋转切割平板的法线。借助矩阵变换,针对心内膜三维几何模型实现能反映用户切割意图和保持网格细节特征的网格切割,而且切割平板可以消除锯齿效应。实验对比结果证明,该算法对于心内膜三维几何模型可以实现令用户满意的实时无锯齿交互式网格切割。
針對心內膜三維標測繫統中心內膜模型網格切割模塊,提齣一種新的交互式網格切割算法。繫統在載入心內膜三維幾何模型後初始化切割平闆模型,由用戶交互移動切割平闆和鏇轉切割平闆的法線。藉助矩陣變換,針對心內膜三維幾何模型實現能反映用戶切割意圖和保持網格細節特徵的網格切割,而且切割平闆可以消除鋸齒效應。實驗對比結果證明,該算法對于心內膜三維幾何模型可以實現令用戶滿意的實時無鋸齒交互式網格切割。
침대심내막삼유표측계통중심내막모형망격절할모괴,제출일충신적교호식망격절할산법。계통재재입심내막삼유궤하모형후초시화절할평판모형,유용호교호이동절할평판화선전절할평판적법선。차조구진변환,침대심내막삼유궤하모형실현능반영용호절할의도화보지망격세절특정적망격절할,이차절할평판가이소제거치효응。실험대비결과증명,해산법대우심내막삼유궤하모형가이실현령용호만의적실시무거치교호식망격절할。
For the mesh cutting module of endocardial model in endocardial 3D mapping system,we present a new interactive mesh cutting algorithm.The system initialises the cutting plane model after the 3D endocardial geometric model is loaded,then the cutting plane and the normal line of cutting plane are moved and rotated by the user interactively.With the help of matrix transformation,the mesh cutting which reflects user’s cutting intention while preserves the feature of mesh details is implemented aiming at the 3D endocardial geometric model.Mo-reover,the cutting plane can eliminate the sawtooth effect.Experimental contrasting result shows that this algorithm can achieve real-time non-serrated interactive mesh cutting with user satisfaction for 3D endocardial geometric model.