【摘要】：為探索地基激光雷達(dá)數(shù)據(jù)在植物真實(shí)三維建模上的應(yīng)用,研究基于MeshLab軟件的三維Alpha-Shape算法和移動(dòng)立方體算法進(jìn)行玉米植株三維真實(shí)模型的重建。三維Alpha-Shape算法基于離散激光雷達(dá)點(diǎn)云構(gòu)建Delaunay三角網(wǎng),通過Alpha值的設(shè)置判斷各單純形是否保留,完成玉米植株三維重建。移動(dòng)立方體算法則通過查找每個(gè)體素與等值面相交的交面,所有交面連在一起即為所求的等值面。Alpha值分別設(shè)置為0.006 290、0.012 638、0.018 635,采用Alpha-Shape算法進(jìn)行單株玉米三維重建,試驗(yàn)結(jié)果表明:當(dāng)Alpha值設(shè)置較小時(shí),對(duì)玉米葉片、莖稈等細(xì)節(jié)信息表達(dá)的比較精細(xì),但許多葉片中間不連續(xù);Alpha值設(shè)置較大時(shí),對(duì)玉米植株細(xì)節(jié)信息表達(dá)不精細(xì)�；谝苿�(dòng)立方體算法重建出的玉米植株曲面較為光滑,且孔洞較少,但重建結(jié)果不完整。
[Abstract]:In order to explore the application of ground-based lidar data in plant real 3D modeling, 3D Alpha-Shape algorithm and moving cube algorithm based on MeshLab software were studied to reconstruct the 3D real model of maize plant. Three-dimensional Alpha-Shape algorithm is based on discrete lidar point cloud to construct Delaunay triangulation network. Through the setting of Alpha value to determine whether each simplex is reserved or not to complete the three-dimensional reconstruction of maize plant. By searching for the intersection between each voxel and the equivalent surface, the moving cube algorithm sets the equivalent surface. Alpha value of all the intersecting surfaces together is 0.006 ~ (290) ~ 0.012 ~ (638) ~ 0.018 ~ (635) respectively. The Alpha-Shape algorithm is used to reconstruct a single plant of maize. The results showed that when the Alpha value was small, the detailed information of maize leaves and stems was fine, but when the Alpha values of many leaves were larger, the detailed information of maize plants was not well expressed. The surface of maize plant reconstructed by moving cube algorithm is smooth and has fewer holes, but the reconstruction result is incomplete.
【作者單位】： 中國(guó)農(nóng)業(yè)大學(xué)信息與電氣工程學(xué)院/農(nóng)業(yè)部農(nóng)業(yè)信息獲取技術(shù)重點(diǎn)實(shí)驗(yàn)室;北京航天勘察設(shè)計(jì)研究院有限公司;中國(guó)礦業(yè)大學(xué)(北京)地球科學(xué)與測(cè)繪工程學(xué)院;
【基金】：中央高�；究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金項(xiàng)目(2013QJ055) 北京高校青年英才計(jì)劃項(xiàng)目資助(YETP0316)
【分類號(hào)】：S513;TN958.98

【參考文獻(xiàn)】

相關(guān)期刊論文 前9條

1 郭焱,李保國(guó);虛擬植物的研究進(jìn)展[J];科學(xué)通報(bào);2001年04期

2 林民銓;唐麗玉;陳崇成;鄒杰;林郁欣;;基于L-系統(tǒng)規(guī)則組合機(jī)制的植物建模新方法[J];中國(guó)農(nóng)業(yè)科技導(dǎo)報(bào);2011年02期

3 袁曉敏;溫維亮;郭新宇;陸聲鏈;;園藝植物可視化研究進(jìn)展[J];中國(guó)農(nóng)業(yè)科技導(dǎo)報(bào);2011年06期

4 蘇偉;戴龍;王森;李沁;沈蔚;;基于OpenGL的LiDAR數(shù)據(jù)處理模塊設(shè)計(jì)與實(shí)現(xiàn)[J];中國(guó)農(nóng)業(yè)大學(xué)學(xué)報(bào);2012年02期

5 郭新宇;趙春江;肖伯祥;鄧旭陽;孫廣宇;王紀(jì)華;;玉米三維重構(gòu)及可視化系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)[J];農(nóng)業(yè)工程學(xué)報(bào);2007年04期

6 董瑩瑩;趙星;王紀(jì)華;;基于GPU的虛擬植物生長(zhǎng)的雙尺度自動(dòng)機(jī)模型實(shí)現(xiàn)方法[J];農(nóng)業(yè)工程學(xué)報(bào);2011年05期

7 沈蔚;李京;陳云浩;鄧?yán)?彭光雄;;基于LIDAR數(shù)據(jù)的建筑輪廓線提取及規(guī)則化算法研究[J];遙感學(xué)報(bào);2008年05期

8 董喬雪;王一鳴;Jean Francois BARCZI;;番茄的結(jié)構(gòu)-功能模型Ⅰ:基于有限態(tài)自動(dòng)機(jī)的3D形態(tài)構(gòu)建[J];中國(guó)生態(tài)農(nóng)業(yè)學(xué)報(bào);2006年04期

9 郭焱;史同鑫;吳R，

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