基于计算机视觉的动态沙盘演示系统
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摘要
针对传统沙盘存在制作过程繁琐、演示内容单一等方面的缺点,利用Kinect的即时动态捕捉、影像识别等功能,设计了一套基于计算机视觉的动态沙盘演示系统,通过人机交互技术创新性地将传统静态地形图展示的沙盘打造成可实时动态变化的智能展示沙盘。系统在充分利用电脑软件图像处理功能的基础上,利用通过三角测量原理采集的深度图像,建立可视化程度高的彩色等高线三维地形图,并通过投影仪将其投影在沙盘表面,更为直观地把地形地势、河流湖泊、降水等地理特征表示出来,可以实现地形动态变化的即时捕捉和实时展示,在国土资源分析、地理教学等领域有广阔的应用前景。
Aiming at the shortcomings of the traditional sand table,such as the tedious production process,single demonstration content and so on,a dynamic sand table demonstration system based on computer vision is designed by using Kinect's functions of real-time dynamic capture and image recognition.The traditional sand table displayed by static topographic map is innovatively created to be intelligent sand table with real-time dynamic change through human-computer interaction technology.On the basis of making full use of the image processing function of the computer software,the system uses the depth images collected by the principle of triangulation to establish the color contour three-dimensional topographic map with high degree of visualization,and projects it on the surface of the sand table through the projector,so as to visualize the topographic features more intuitively,such as topography,rivers and lakes,precipitation and so on.The system can realize real-time capture and real-time display of dynamic terrain changes.It has broad application prospects in land and resources analysis,geography teaching and other fields.
Aiming at the shortcomings of the traditional sand table,such as the tedious production process,single demonstration content and so on,a dynamic sand table demonstration system based on computer vision is designed by using Kinect's functions of real-time dynamic capture and image recognition.The traditional sand table displayed by static topographic map is innovatively created to be intelligent sand table with real-time dynamic change through human-computer interaction technology.On the basis of making full use of the image processing function of the computer software,the system uses the depth images collected by the principle of triangulation to establish the color contour three-dimensional topographic map with high degree of visualization,and projects it on the surface of the sand table through the projector,so as to visualize the topographic features more intuitively,such as topography,rivers and lakes,precipitation and so on.The system can realize real-time capture and real-time display of dynamic terrain changes.It has broad application prospects in land and resources analysis,geography teaching and other fields.
引文
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[2] 杨红卫,刘勇,许民,等.沙盘模型设计与实践[J].地理空间信息,2010,8(6):95-97.
[3] 江会军,李志刚,尙亮.地形沙盘制作色彩设计[J].测绘技术装备,2013,15(2):42-43+38.
[4] 王恩谊.监狱管理多媒体沙盘模型制作及应用[J].测绘技术装备,2008(1):27-28+23.
[5] 杨明泽,王明孝,马祖光,等.三维真彩色地形沙盘模型的自动化制作方法[J].地理空间信息,2017,15(4):89-92+11.
[6] Freedman B,Shpunt A,Machline M,et al.DEPTH MAPPING USING PROJECTED PATTERNS:US,US 8493496 B2[P].2013.
[7] 靳海亮,高井祥,康建荣.基于等高线的三维真实感地形生成研究[J].计算机与数字工程,2005(10):20-23.
[8] 马蕾,龚戈淬.基于OPENGL的三维地形的生成实现[J].科技资讯,2014,12(11):5-6.
[9] 王兰兰,戴曙光.基于kinect深度图像的联合双边滤波算法的研究[J].数据通信,2015(5):31-34.
[10] 张虹,杨平乐,孔莉芳.图像边缘提取技术的分析及优化[J].微计算机信息,2007(33):289-291.
[11] 吴莉莉.Delaunay三角剖分的几种算法综述[J].科技信息,2011(28):119-120.
[12] 李丽.三维空间Delaunay三角剖分算法的研究及应用[D].大连海事大学,2010.
[13] 申利民.Delaunay三角剖分算法优化的实现[J].计算机与数字工程,2009,37(4):34-36+41.
[14] 胡卫明,吴兵,凌海滨.地图等高线自动内插算法[J].计算机学报,2000(8):847-851.
[15] 钱天久.中国分层设色地图的色层设计[J].地图,1993(2):28-31.