Improving image stitching accuracy for double CCD
-
摘要: 利用一对光楔间距变化时，通过它的成像光束的像点会产生微小偏移这一特性，在双CCD图像拼接探测器中增加了光楔调整机构，该光楔调整机构包含两对光楔，一对光楔用于CCD水平方向的图像调整；另一对用于垂直方向的图像调整。通过设计、制作，光楔调整机构最终应用于双CCD图像拼接探测器的装调。装调过程显示：加装光楔调整机构对原有光学系统没有任何影响，可以实现精度高于0.001mm的图像移动量，有效降低了双CCD图像拼接探测器的装调难度，提高了拼接图像质量，降低了生产成本。Abstract: The imaging ray will have a small displacement when the space between a pair of light wedges is changed. A light wedge regulation device is added in the detector of double CCD image stitching, which includes two pairs of light wedges, one pair is used for the image regulation in horizontal direction, while the other is used for image regulation in vertical direction. A light wedge regulation device was designed and manufactured. It is incorporated in the detector for tuning double CCD image stitching. The assembly and tuning process shows that the regulation device does not have any negative impact on the original optical system, and it can realize image displacement with accuracy better than 0.001mm. It reduces the detector assembly and tuning complexity for double CCD image stitching, improves image stitching quality and saves the production cost.
-
Key words:
- CCD stitching /
- light wedge /
- stitching accuracy
-
［1］刘妍妍，张新，张建萍. 超分辨重建技术及其研究进展［J］. 中国光学与应用光学，2009，2(2)：102-111.
LIU Yan-yan，ZHANG Xin,ZHANG Jian-ping. Super-resolved reconstruction technologies and recent evolution［J］. Chinese Journal of Optics and Applied Optics，2009，2(2)：102-111.(in Chinese with an English abstract)
［2］刘新平，王虎，汶德胜. 亚像元线阵CCD焦平面的光学拼接［J］.光子学报，2002，31(6)：781-784.
LIU Xin-ping，WANG Hu,WEN De-sheng.Optical focal plane assembly of linear CCD array for subpixel imaging camera［J］. Actaphotonica Sinica，2002，31(6)：9-12.(in Chinese with an English abstract)
［3］张星祥，任建岳. TDICCD焦平面的机械交错拼接［J］. 光学学报，2006，26(5)：740-745.
ZHANG Xing-xiang,REN Jian-yue. Mechanical interleaving assembly of TDICCD focal plane［J］. Acta Optica Sinica，2006，26(5)：740-745. (in Chinese with an English abstract)
［4］汶德胜，王虎，乔卫东. 一种测量亚像元CCD拼接误差的方法［J］.应用光学，2003，24(1)：40-42.
WEN De-sheng，WANG Hu,QIAO Wei-dong. Method for alignment measurement of a subplxel CCD focal-plane assembly［J］. Journal of Applied Optics，2003，24(1)：40-42. (in Chinese with an English abstract)
［5］光学仪器设计手册编辑组. 光学仪器设计手册：上册［M］. 北京：国防工业出版社, 1971.
Editorial group of optical instrument design manual. Optical instrument design manual：I［M］. Beijing：Defense Industry Press, 1971.（in Chinese）
［6］PAUL R Y，JR. Mounting optics in optical instru-ment second edition［M］. USA：SPIE Press, 2008 -
点击查看大图
计量
- 文章访问数: 3956
- HTML全文浏览量: 99
- PDF下载量: 1016
- 被引次数: 0
下载:
陕公网安备 61011302001501号 