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1. 中国科学院 长春光学精密机械与物理研究所,吉林 长春,中国,130033
2. 中国科学院大学 北京,中国,100049
3. 长春工业大学 电气与电子工程学院,吉林 长春,130012
收稿日期:2014-01-17,
修回日期:2014-03-20,
纸质出版日期:2014-12-25
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王莹, 王延杰, 周渝人等. 基于注入式仿真平台的自适应真实感地形生成算法[J]. 光学精密工程, 2014,22(12): 3419-3426
WANG Ying, WANG Yan-jie, ZHOU Yu-ren etc. Real adaptive topography optimization algorithm based on injection simulation platform[J]. Editorial Office of Optics and Precision Engineering, 2014,22(12): 3419-3426
王莹, 王延杰, 周渝人等. 基于注入式仿真平台的自适应真实感地形生成算法[J]. 光学精密工程, 2014,22(12): 3419-3426 DOI: 10.3788/OPE.20142212.3419.
WANG Ying, WANG Yan-jie, ZHOU Yu-ren etc. Real adaptive topography optimization algorithm based on injection simulation platform[J]. Editorial Office of Optics and Precision Engineering, 2014,22(12): 3419-3426 DOI: 10.3788/OPE.20142212.3419.
为了满足注入式仿真系统对实时性的要求
提出了一种基于实时优化自适应网格(ROAM)算法的自适应真实感地形生成算法.将基本ROAM算法生成的地形作为基网格
提出了一种新的评价参数
通过比较给定阈值与参数来判断是否进行局部细分.对满足细分条件的顶点进一步提取地形的尖锐特征
采用Loop算法细分局部曲面.在实时漫游过程中利用旋转映射技术生成一个视频流实时输出到注入式仿真平台并显示在数字视频接口(DVI)显示器上.实验结果表明:该算法在实时漫游仿真时
平均帧频达到45.130 3 frame/s
峰值帧频接近50 frame/s
高于原始算法的36 frame/s.得到的仿真地形场景能够在注入式仿真平台上流畅输出到DVI显示器
平均帧频为45 frame/s左右
满足注入式仿真系统实时性的要求.
To meet the requirements of some injection simulation platforms for reality
a real adaptive topography optimization algorithm based on Real Time Optimally Adapting Mesh(ROAM) algorithm was proposed. By taking the terrain generated by ROAM as a base grid
a new integrated parameter
Y
was proposed
and a given threshold was compared with the
Y
parameter to determine whether the local splitting was implemented or not. The sharp features of the terrain were extracted from a vertex that satisfy the splitting conditions
and the local curve surface was splitted by Loop algorithm. Finally
a video stream was generated by rotation mapping algorithm in real-time roaming process and it was sent to the injection simulation system to be displayed by a Digital Visual Interface(DVI) display. Experimental results show that the average of roaming frame rate of proposed algorithm is 45.1303 frame/s and the peak frame rate is close to 50 frame/s
higher than that of traditional algorithm. Moreover
the obtained terrain could display on the DVI display on the injection simulation platform with an average of roaming frame rate of 45 frame/s
which satisfies the requirements of the injection simulation systems for the reality.
DUCHAINEAU M, WOLINSKY M,SIGETI D,et al..ROAMing terrain:real-time optimally adapting meshes[J]. Proceedings of the 8th Conference on nisualization,1997.
王涛,汤浩,王金林,等. 一种人工数字地图的生成算法及其仿真研究[J]. 计算机仿真,2009,26(6):66-69. WANG T, TANG H, WANG J L,et al.. An algorithm for artificial data map creation and its simulation [J]. Computer Simulation,2009,26(6):66-69.(in Chinese)
HAGBI N,BERGIG O,EL-SANA A,et al.. Shape recognition and pose estimation for mobile augmented reality[J]. 8th IEEE International Symposium on Mixed and Augmented Reality,2009.
周海,周来水,王占东,等. 散乱数据点的细分曲面重建算法及实现[J]. 计算机辅助设计与图形学学报,2003,15(10):1287-1293. ZHOU H,ZHOU L SH,WANG ZH D,et al..Surface reconstruction from unorganized points using subdivision techniques [J]. Journal of Computer -aided Design & Computer Graphics,2003,15(10):1287-1293. (in Chinese)
LOOP C T. Smooth subdivision surfaces based on triangles[D]. M.S. Thesis, Department of Mathematics, University of Utah, 1987.
ENGEL K,KRAUS M,ERTL T. High-quality pre-integrated volume rendering using hardware-accelerated pixel shading[C]. In Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware,2001,9-16.
潘绍松,左洪福. 工业增强现实中的相机跟踪[J]. 光学 精密工程,2011,19(6):1353-1359. PAN SH S,ZUO H F.Camera tracking in industrial augmented reality[J]. Opt. Precision Eng.,2011,19(6):1353-1359. (in Chinese)
HOPPE H,DEROSE T,DUCHAMPY T,et al.. Piecewise smooth surface reconstruction[C]. Proceedings of the 21st annual Conference on Computer Graphics and Interactive Techniques,1994:295-302.
周海,周来水,王占东,等. Loop细分曲面的自适应等距面生成算法与实现[J]. 机械科学与技术,2003,22(6):1016-1020,1029. ZHOU H,ZHOU L SH, WANG ZH D,et al.. An algorithm for generating offset Loop subdivision surface [J].2003,22(6):1016-1020,1029. (in Chinese)
LIU Y G,PRABHAKARAN B B, GUO X H. Point-based manifold harmonics [J]. IEEE Transactions on Visualization and Computer Graphics,2012,18(10):1693-1703.
YOO S W,SEONG J K,SEONG J K,SUNG M H. A triangulation-invariant method for anisotropic geodesic map computation on surface meshes [J]. Visualization and Computer Graphics,2012,18(10):1664-1677.
陈希亮, 曹雷,崔平. 基于 ROAM 算法的实时地形可视化研究[J]. 计算机技术与发展,2013,23(1):237-241. CHEN X l,CAO L,CUI P. Research on real-time terrain visualization based on ROAM algorithm[J]. Computer Technology and Development,2013,23(1):237-241.(in Chinese)
许少华,修春来. 改进的分块ROAM 的地形简化生成算法[J]. 齐齐哈尔大学学报,2009,25(3):56-59. XU SH H,XIU CH L.Improved block ROAM terrain simplified algorithm [J]. Journal of Qiqihar University,2009,25(3):56-59.
HE Y F.Real-time visualization on dynamic terrain for ground vehicles simulation[D].Iowa:University of Iowa in America, 2000.
GIJSENIJ A,GEVERS T,VAN DE J. Computational color constancy: survey and experiments [J]. IEEE Transactions on Image Processing,2011,20(9):2475-2489.
卜雄洙,李桂娟,杨波,等. 中心偏移的全景环形图像快速展开[J]. 光学 精密工程,2012,20(9):2103-2109. BU X ZH,LI G J,YANG B,et al..Fast unwrapping of panoramic annular image with center deviation [J].Opt. Precision Eng.,2012,20(9):2103-2109. (in Chinese)
HENNING BIERMANN,ADI LEVIN,DENIS ZORIN. Piecewise smooth subdivision surfaces with normal control[C]. Proceedings of 27th Annual Conference on Computer Graphics and Interactive Techniques,2000:113-120.
CHEN CH,ZHUANG Y T,NIE F,et al.. Learning a 3D human pose distance metric from geometric pose descriptor [J]. Visualization and Computer Graphics, 2012,17(11):1676-1689.
ELMQVIST N, DRAGICEVIC P, FEKETE J D. Rolling the dice:multidimensional visual exploration using scatterplot matrix navigation[J]. IEEE Trans. Visualization and Computer Graphics,2008,14(6):1141-8.
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