| 激光片光三维传感中提高深度分辨率的方法 |
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| 引用本文： | 邹小平,苏显渝,张启灿.激光片光三维传感中提高深度分辨率的方法[J].激光技术,2004,28(2):196-198,224. |
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| 作者姓名： | 邹小平 苏显渝 张启灿 |
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| 作者单位： | 1.四川大学, 光电科学技术系, 成都, 610064 |
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| 摘 要： | 提出了两种在激光片光三维传感中降低散斑噪声、提高深度分辨率的方法。第1种方法采用宏观上相同、微观上受物体微结构面元影响的多帧散斑图像叠加,用于三维测量系统的标定。第2种方法利用动态采集方式,使CCD对微结构元进行时间积分,可有效地降低散斑噪声的影响。实验证明,综合利用这两种方式,深度分辨率可以得到有效的提高。
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| 关 键 词： | 激光片光 三维传感 散斑 光学三角测量 |
| 文章编号： | 1001-3806(2004)02-0196-03 |
| 收稿时间： | 2003/5/8 |
| 修稿时间： | 2003-07-30 |
Methods of improving the depth resolution in optical 3-D profilometry with laser sheet |
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| ZOU Xiao-ping,SU Xian-yu,ZHANG Qi-can.Methods of improving the depth resolution in optical 3-D profilometry with laser sheet[J].Laser Technology,2004,28(2):196-198,224. |
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| Authors: | ZOU Xiao-ping SU Xian-yu ZHANG Qi-can |
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| Abstract: | Methods of reducing the speckle noise and improving the depth resolution in optical 3-D profilometry with laser sheet are proposed in the paper.Speckle is caused by object's micro-structure,with more less-correlated random structure co-interference in the imaging field,the speckle can be depressed greatly.As proved by experiments,combined the method of appreciably sacrificing the lateral resolution and dynamic image capture,the depth resolution can be effectively improved. |
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| Keywords: | laser sheet laser triangulation 3-D optical profilometry speckle |
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