CAJ | 학술논문

采用基于RPC模型进行ZY-3影像正射纠正处理时，当使用全局布点控制方案时控制点增加到12个以上后，对整景影像的纠正精度影响不明显，且由于选取多个高精度的控制点非常困难，而有时控制点的增加并不一定能带来精度的提高。本文通过采用几种不同的控制点布设方案对同一景ZY-3影像进行正射纠正，并对几种方案的纠正成果进行了精度比较和分析，从而进一步证实了选择合适的控制点布设方案和控制点数量大大提高ZY-3影像的纠正质量和纠正效率。
채용기우RPC모형진행ZY-3영상정사규정처리시，당사용전국포점공제방안시공제점증가도12개이상후，대정경영상적규정정도영향불명현，차유우선취다개고정도적공제점비상곤난，이유시공제점적증가병불일정능대래정도적제고。본문통과채용궤충불동적공제점포설방안대동일경ZY-3영상진행정사규정，병대궤충방안적규정성과진행료정도비교화분석，종이진일보증실료선택합괄적공제점포설방안화공제점수량대대제고ZY-3영상적규정질량화규정효솔。
Using RPC ( Rational Polynomial Coefficients ) model to do image ortho-rectification, when the number of global control points is added more than 12 points, the whole image rectification accuracy of these global control points is not so obvious .Further-more, the selection of several high accuracy control points is indeed a difficult task , and sometimes the increase of the number of con-trol points is not always accompanied with the improvement of image rectification accuracy .Through using several different control point layout schemes for the same ZY -3 image to accomplish ortho -rectification, doing accuracy comparison and analysis among these rectification results , this paper further demonstrates the appropriate scheme of control points layout and the suitable number of control points will greatly improve the accuracy and efficiency of ZY -3 image rectification .