Real adaptive topography optimization algorithm based on injection simulation platform

WANG Ying; WANG Yan-jie; ZHOU Yu-ren; LI Jing-yu; DING Nan-nan; YAO Zhi-jun

doi:10.3788/OPE.20142212.3419

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Real adaptive topography optimization algorithm based on injection simulation platform

更新时间：2020-08-13

- Real adaptive topography optimization algorithm based on injection simulation platform
- Optics and Precision Engineering Vol. 22, Issue 12, Pages: 3419-3426(2014)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20142212.3419
  CLC： TP75;TP391.9
- Received：17 January 2014，
  
  Revised：20 March 2014，
  
  Published：25 December 2014
- 稿件说明：
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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.

摘要

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.

Abstract

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

was proposed

and a given threshold was compared with the

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.

关键词

Keywords

references

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