NEW CONCEPT OF A PHOTOGRAMMETRY SYSTEM WITH ADAPTED 'INTELLIGENT' ILLUMINATION FOR 3D-SHAPE CAPTURE USING COMPUTER GENERATED HOLOGRAMMS

机译：利用计算机生成的全息图对3D形状捕捉进行自适应“智能”照明的摄影测量系统的新概念

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A non-contact measurement system, based on the principle of photogrammetry, developed at the Fraunhofer IPT, permits a highly exact 3D-shape-measurement of objects. Because of the limited depth focus of the projection lens used, the axial measurement range is reduced to only a few centimetres. In order to digitize the 3D-shape of technical objects of various dimensions, the structured illumination on the object surface must be in focus for each axial depth. The principle of holographic projection offers a crucial benefit, in order to project a sharp pattern in any plane. By applying computer generated holograms for projection of patterns, further depth information can be encoded. Only this allows the measuring of 3D-shapes in one step.

机译：Fraunhofer IPT开发了一种基于摄影测量原理的非接触式测量系统，可以对物体进行高度精确的3D形状测量。由于所使用的投影镜头的深度焦点有限，因此轴向测量范围仅减小了几厘米。为了数字化各种尺寸的技术对象的3D形状，必须针对每个轴向深度在对象表面聚焦结构化照明。全息投影原理提供了至关重要的好处，以便在任何平面上投影出清晰的图案。通过将计算机生成的全息图应用于图案投影，可以对其他深度信息进行编码。只有这样，才能一步测量3D形状。

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来源
《International Measurement Confederation XVI IMEKO World Congress (IMEKO 2000) Vol.8, Sep 25-28, 2000, Vienna, Austria》|2000年|p.17-20|共4页
会议地点 Vienna(AT);Vienna(AT)
作者
A. Bai; M; Zacher; T. Pfeifer;
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作者单位

Fraunhofer institute of Production Technology lPT Steinbachstrasse 17, D-52074 Aachen, Germany;

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会议组织
原文格式 PDF
正文语种 eng
中图分类一般工业技术;
关键词
photogrammetry; optical 3D-measurement; holography; structured illumination;

机译：摄影测量光学3D测量全息术结构照明;

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NEW CONCEPT OF A PHOTOGRAMMETRY SYSTEM WITH ADAPTED 'INTELLIGENT' ILLUMINATION FOR 3D-SHAPE CAPTURE USING COMPUTER GENERATED HOLOGRAMMS

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