| 计算机实现原木的三维再现 |
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| 引用本文： | 关明山,任洪娥,马岩.计算机实现原木的三维再现[J].木材工业,2004,18(3):23-25,28. |
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| 作者姓名： | 关明山 任洪娥 马岩 |
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| 作者单位： | 东北林业大学,哈尔滨,150040 |
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| 基金项目： | 国家"948"项目(2001-27),黑龙江省自然科学基金资助项目《东北主要树种板材特征的纹理视频检索理论》(C01-21)。 |
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| 摘 要： | 根据计算机图形学原理,利用坐标变换,包括放缩、规格化等一系列处理,将激光扫描的原木三维几何数据转换成世界坐标,再利用比例、投影、旋转等方法对转换后的坐标进行处理,进而形成相应的计算机屏幕坐标,最终在计算机上真实再现原木的几何特征,为原木加工的自动化处理提供依据。
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| 关 键 词： | 三维再现 激光扫描 坐标变换 原木 |
| 文章编号： | 1001-8654(2004)03-0023-03 |
Computerized Three-dimensional Log Representation |
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| GUAN Ming-shan,REN Hong-e,MA Yan.Computerized Three-dimensional Log Representation[J].China Wood Industry,2004,18(3):23-25,28. |
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| Authors: | GUAN Ming-shan REN Hong-e MA Yan |
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| Abstract: | It is important to be able to accurately and rapidly measure log diameter to efficiently and automatically process logs. This paper describes a computer graphic method to represent a three dimensional shape of a log. Basic cross-sectional data were obtained by passing logs, at a given speed, through a frame on which laser scanners had been installed. Images of the shape of the logs were then viewed on the computer screen where they could be manipulated such as changing the coordinates, zooming in or out, or rotating them. |
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| Keywords: | Three-dimensional representation Laser scanner Coordinate change Log |
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