【摘要】 分析了ＤＬＴ定标模型的原理和方法，根据所涉及的应用场合和界定的条件，对ＤＬＴ模型进行了简化，由此只需进行二维测量和计算，就能准确有效地完成三维定标．对定标误差进行了理论分析和实验，提出了误差纠正模型及其相应算法，保证了系统的扫描精度．实验表明：提出的定标算法达到像素级精度．更多还原

【Abstract】 To acquire 3 D information quickly, structured light ranging is widely used in computer vision and topography. Based on the applications and given conditions, DLT model is simplified. 3 D calibration can be implemented successfully and quickly through 2 D measuring and computing. To get the higher accuracy, the calibrating error is analyzed and the algorithm is improved. The experiments demonstrate the calibration accuracy of the algorithm can be in pixel.更多还原