第18卷第9期 2010年9月
文章编号
1004-924X(2010)09-2069-08
光学精密工程
Optics and Precision Engineering
外视场拼接测量技术及其实现
王晏1,2，宋立维"，乔彦峰1，余毅
（1.中国科学院长春光学精密机械与物理研究所，吉林长春130033；
2.中国科学院研究生院，北京100039）
Vol.18No.9
Sep.2010
摘要：由于单台高速摄像机无法满足高速测量领域对大视场、高映频、高分辨力和高数据量处理的要求，本文对通过外视场拼接来实现大视场角目标测量的技术进行了研究。在分析和比较各种拼接方式的基础上，提出了由4个测量相机的外视场拼接实现大视场测量的系统方案。4台测量相机以"田"字型配置在跟踪架水平轴两端，拼接后在视场上实现了“二"字型大视场测量。采用提出的方案，设计和研制了外视场拼接测量系统样机。采用视场角为10"的镜头进行视场拼接，实际拼接后最大视场为40°（方位）×10（高低）；视差为360mm时，目标距摄像机大于247m无言区，可以拍摄到完整的图像。
关键调；外视场拼接；高速损像，高速测量；外视场测量系航。
中图分类号：TP391.4;TB872
文献标识码：A
doi;10.3788/OPE.20101809.2069
Externalfieldstitchingtechnologyfor
highspeedtargetmeasuringanditsimplementation
WANG Min'-",SONG Li-wei',QIAO Yan-feng',YU Yi
(l.Changchun Instituteof Optics,FineMechanics and Physics ChineseAcademy of Sciences,Changchun 130033,China;
2.GraduateUniversity of ChineseAcademy ofSciences,Beijing100039,China)
Abstract: As a single high-speed camera can not meet the requirements of high-speed target measure ment for large fields, high frame rates, high resolutions and large volume data processing,the high speed target measuring technology completed by external field stitching was researched. On the basis of analysis and comparison of external field stitching methods, a ultimate scheme of external field stitching with external fields from four cameras was proposed. In the scheme, two cameras were mounted at one side along the horizontal axis of a 'T' type tracking frame and the others were at the other side. A prototype of external field stitching measuring system made of four lenses with 1o°field angle was designed,and its actual stitching field of view is 4o °(horizontal) X 1o *(vertical). When the parallax is 36o mm, the complete image can be obtained for the target over247 m away from the cameras without blind spots.
收稿日期：2009-10-15；修订日期；2009-12-11
基金项目：粤港关键领域重点突破项目（No.2004A10403021)；广东省科技攻关项目（No.2006A10401006）