发明名称 |
PROCEDE D'ESTIMATION DE L'ETAT DE FOCALISATION D'UN INSTRUMENT OPTIQUE |
摘要 |
<p>The method involves comparing two images of a scene acquired by a sensor assembly and area inter barrettes. Difference (dx) between homologous pixels of the images is measured, where the difference represents focusing state of an optical instrument. Comparison of the images is implemented by a correlation matrix, where the measured difference corresponds to an averaging column of the correlation matrix. Relationship between the variation with optimal focusing and the difference induced by defocusing is expressed according to an odd function. An independent claim is also included for a computer program comprising a set of instructions to perform a method for estimating focusing state of an optical instrument.</p> |
申请公布号 |
FR2994488(B1) |
申请公布日期 |
2014.08.22 |
申请号 |
FR20120057679 |
申请日期 |
2012.08.07 |
申请人 |
CENTRE NATIONAL D'ETUDES SPATIALES |
发明人 |
FOUREST SEBASTIEN;BOISNARD LAURENT;VALORGE CHRISTOPHE |
分类号 |
G02B7/28 |
主分类号 |
G02B7/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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