線結構光傳感器標定不確定度估計

線結構光傳感器標定不確定度估計

劉珂 周富強 張廣軍北京航空航天大學儀器科學與光電工程學院,北京100083摘　要:分析了標定樣本數據的不確定度對線結構光傳感器標定精度的影響，利用矩陣擾動理論和一階不確定度分析理論，給出線結構光視覺傳感器模型中映射矩陣參數不確定度的評估方法，并建立了從標定樣本數據不確定度到標定不確定度的傳播模型。利用蒙特卡洛統計法進行了仿真驗證，結果表明所建立不確定度傳播模型的有效性，為線結構光傳感器標定精度的評估提供了依據。[著者文摘]

關鍵詞:視覺傳感器 結構光視覺 標定 不確定度 蒙特卡洛統計法
分類號:　TP391.41[免標]文獻標識碼：A文章編號：1003-501X（2006）08-0079-06欄目信息：光電測量
相關文獻:主題相關

Estimation of uncertainty in calibrating line structured light sensorLIU Ke, ZHOU School of Instrument Science ＆ Fu-qiang, ZHANG Guang-jun Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China Abstract:The influence of uncertainty of feature points on the calibration accuracy of the line structured light vision sensor was analyzed in the paper. Based on the theory of matrix turbulence and first-order uncertainty analysis, a feasible method for estimating the uncertainty of parameters of homography matrix was proposed, and propagating model of uncertainty from errors of the feature points to the calibration error was established as well. Simulation experiments conducted with Monte Carlo statistic method reveal that the proposed propagating model of uncertainty is valid. Based on the established uncertainty model, one practical error evaluating method can be obtained in calibrating the line structured light vision sensor.[著者文摘]

Key words:Vision sensors; Structured light vision; Calibration; Uncertainty; Monte Carlo statistic method