计算机工程与设计
計算機工程與設計
계산궤공정여설계
COMPUTER ENGINEERING AND DESIGN
2014年
7期
2390-2394
,共5页
摄像机标定%自适应和声搜索算法%内参数%鲁棒性%机器视觉
攝像機標定%自適應和聲搜索算法%內參數%魯棒性%機器視覺
섭상궤표정%자괄응화성수색산법%내삼수%로봉성%궤기시각
camera calibration%adaptive harmony search algorithm%intrinsic parameter%robustness%machine vision
为了得到更加精确有效的摄像机标定结果，提出了一种改进的摄像机标定过程优化算法。在和声搜索算法基础上，自适应调整待优化参数，使目标函数不局限于局部最优点；将自适应和声搜索算法（AHSA）与摄像机标定过程相结合，优化标定所得的摄像机内参数和径向畸变系数；分析了实验所得标定结果的平均反投影误差，计算不同噪声级下标定结果的平均绝对误差和标准差。分析结果表明，该摄像机标定方法是准确而有效的。
為瞭得到更加精確有效的攝像機標定結果，提齣瞭一種改進的攝像機標定過程優化算法。在和聲搜索算法基礎上，自適應調整待優化參數，使目標函數不跼限于跼部最優點；將自適應和聲搜索算法（AHSA）與攝像機標定過程相結閤，優化標定所得的攝像機內參數和徑嚮畸變繫數；分析瞭實驗所得標定結果的平均反投影誤差，計算不同譟聲級下標定結果的平均絕對誤差和標準差。分析結果錶明，該攝像機標定方法是準確而有效的。
위료득도경가정학유효적섭상궤표정결과，제출료일충개진적섭상궤표정과정우화산법。재화성수색산법기출상，자괄응조정대우화삼수，사목표함수불국한우국부최우점；장자괄응화성수색산법（AHSA）여섭상궤표정과정상결합，우화표정소득적섭상궤내삼수화경향기변계수；분석료실험소득표정결과적평균반투영오차，계산불동조성급하표정결과적평균절대오차화표준차。분석결과표명，해섭상궤표정방법시준학이유효적。
To obtain more accurate results of optimization calibration,an improved optimization algorithm of camera calibration was proposed.Firstly,on the basis of the harmony search algorithm,parameters were set adaptively so that the obj ective func-tion could avoid local minima.Secondly,the adaptive harmony search algorithm combined with the process of camera calibration was used to optimize the camera’s intrinsic parameters and the coefficient of radial distortion.Finally,the average back-proj ec-tion error was analyzed,and the mean absolute error and the standard deviation were also calculated on the cases of different noise level.The experimental results showed that the proposed camera calibration method was accurate and effective.
