CAJ | 학술논문

针对精确检校航空数码相机的应用需求，提出了一种基于室外检校场的航空数码相机检校方法。以共线约束方程为基础，首先详细推导了检校的数学公式；然后以实际的室外检校场为基础，进行数码相机检校实验。实验表明，检校过程收敛，且2组数据的相机检校结果较为吻合，证明了检校方法的可行性和有效性；由检校后所得的相机内外参数解算检查点的空间坐标，并与实测坐标比较，平面和高程中误差分别为0．039和0．170，证明检校结果具有较高的精度。
침대정학검교항공수마상궤적응용수구，제출료일충기우실외검교장적항공수마상궤검교방법。이공선약속방정위기출，수선상세추도료검교적수학공식；연후이실제적실외검교장위기출，진행수마상궤검교실험。실험표명，검교과정수렴，차2조수거적상궤검교결과교위문합，증명료검교방법적가행성화유효성；유검교후소득적상궤내외삼수해산검사점적공간좌표，병여실측좌표비교，평면화고정중오차분별위0．039화0．170，증명검교결과구유교고적정도。
In view of the application requirement of accurately calibrating aerial digital camera ,an approach for calibrating aerial digital camera based on the outdoor calibration yard ia proposed .First-ly ,the mathematic formulas which are based on the collinear constraints are derived .Afterwards the calibration experiments are carried out based on the built outdoor calibration square .The calibration procedures converge well ,and the results produced from multiple groups of data are generally consist-ent ,demonstrating the effectiveness of the approach .The spatial coordinates of check points ,which are obtained according to the cameras'intrinsic and extrinsic parameters ,are compared with their true values .The RMS errors in plane and altitude are respectively 0 .039 and 0 .170 ,demonstrating the high accuracy of calibration .