Precision Detection of CCD Splicing Based on Template matching Algorithm
The remote sensing camera in large field and wide cover needs CCD with enough pixels. But the existing CCD cannot satisfy the practical needs. Therefore several pieces of CCD which has insufficient pixels are spliced to get a long CCD array with plenty of pixels. The precision requirements of CCD splicing are very strict, so that the same high accuracies are required in the precision detection of CCD splicing. When detecting precision of CCD splicing, the graphical markers with simple geometric structure in the CCD package are selected as templates. The position precision data of the graphical markers in each CCD are obtained using the template matching algorithm. Using the unified objective templates, the focal plane which has multi-chip of CCD is detected by template matching algorithm. Experiment results show that the template matching algorithm can enhance the located precision of each CCD to 0.347um. The splicing precision detection with template matching algorithm can avoid the subjective error caused by the conventional detection method. And its results are more accurate. In addition, without manual intervention in the process of precision detection, the efficiency of precision detection is improved.
CCD splicing interleaving assembly precision detection template mathcing algorithm
Lihong YANG Xingxiang ZHANG Jianyue REN
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences,Changchun, Ch Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences,Changchun, Ch
国际会议
武汉
英文
224-227
2011-08-20（万方平台首次上网日期，不代表论文的发表时间）