纯粹数学与应用数学
純粹數學與應用數學
순수수학여응용수학
PURE AND APPLIED MATHEMATICS
2011年
5期
694-697
,共4页
标定%边界提取%几何不变性%非线性最优化
標定%邊界提取%幾何不變性%非線性最優化
표정%변계제취%궤하불변성%비선성최우화
calibration%boundary extraction%geometric invariance%nonlinear optimization
通过边界提取和几何不变性研究一种新的快速标定方法．首先设计了一个基于闽值的边界提取算法用于获得物体相片的轮廓；然后给出了标定过程中关于几何不变性的几个命题，并用于确定充分多的输入输出对应关系；最后建立了一个非线性优化问题求解视觉系统．数值求解结果显示了本文方法的准确性和有效性．
通過邊界提取和幾何不變性研究一種新的快速標定方法．首先設計瞭一箇基于閩值的邊界提取算法用于穫得物體相片的輪廓；然後給齣瞭標定過程中關于幾何不變性的幾箇命題，併用于確定充分多的輸入輸齣對應關繫；最後建立瞭一箇非線性優化問題求解視覺繫統．數值求解結果顯示瞭本文方法的準確性和有效性．
통과변계제취화궤하불변성연구일충신적쾌속표정방법．수선설계료일개기우민치적변계제취산법용우획득물체상편적륜곽；연후급출료표정과정중관우궤하불변성적궤개명제，병용우학정충분다적수입수출대응관계；최후건립료일개비선성우화문제구해시각계통．수치구해결과현시료본문방법적준학성화유효성．
This paper presents an approach on calibration of camera via boundary extraction and geometric invariance. First, a threshold-based algorithm is applied to extract the boundary of the photo. Second~ several geometric invaxiances axe introduced in several propositions. Then abundant mappings can be determined. Finally, a nonlinear program is proposed to determine the camera system. The accuracy and efficiency of our method are shown in several numerical experiments.
