| 一种对空间散乱点集进行简化的新方法 |
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| 作者单位： | 吉林大学计算机科学与技术学院,吉林大学计算机科学与技术学院,吉林大学计算机科学与技术学院,吉林大学计算机科学与技术学院 长春 130012,长春 130012,长春 130012,长春 130012 |
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| 摘 要： | 提出了一种剔除空间散乱点集中冗余点的新方法。利用称为"球片点"的新的点基元近似表示空间的离散点及其附近的区域。由于曲率的特性,所提出的方法可用较少的离散点获得与其他相关方法相似的绘制效果。利用全局光照模型实现对三维形体的绘制,并利用大规模点模型对所提出的简化方法进行了试验,试验结果证明了方法的有效性。在保证绘制质量近似相同的情况下,该方法能将原始点集的点数减少约40%。
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| 关 键 词： | 计算机应用 三维数据处理 球片点 形体绘制 简化 |
New method for simplification of 3D scattered points |
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| Quan Yong Li Wen-hui Lu Yi-nan Zhang Zhen-hua. New method for simplification of 3D scattered points[J]. Journal of Jilin University:Eng and Technol Ed, 2008, 0(Z1) |
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| Authors: | Quan Yong Li Wen-hui Lu Yi-nan Zhang Zhen-hua |
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| Abstract: | A new method for removing redundant points from 3D scattered point sets is presented.A novel point primitive,referred as Spherical Patch Point,is employed to approximate a 3D point and its vicinity.Due to the property of curvature,this new method can deliver similar visual quality with much less primitives in comparison with other point-based methods.Global illumination is used to render 3D models.The proposed simplification method is tested using large-scale point data,and the results verify its effectiveness.Using the new method can reduce 40~ of the original points, meanwhile,ensures the similar visual appearances. |
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| Keywords: | computer application 3D data processing spherical patch point model drawing simplification |
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