衣片轮廓线照相非线性畸变的校正

Remediation on Non-linear Distortion of Pattern Image

针对CAD纸样输入采用数字化仪输入法的不足,提出数码相机照相输入法。就照相输入造成的图像畸变问题,探讨了畸变原理与校正方法,并设计定焦、定距拍摄实验;利用光学原理和最小二乘法拟合,建立了标定图像的畸变校正公式。并用该公式校正照相畸变图像,达到了0.4%的工业精度。

Recently the method on pattern inputting to CAD is digital board that is costly and is lacking in easy-taking. Using camera instead of the board can improve these disadvantages. It approaches the dis- tortion principle and remediation method with the formula of calibrated graphics, to solve distortion problem of the images taken with a camera in garment CAD system. Finally, the outlines of fashion pattern in photograph image have been modified by the formula, and its precision reaches 0.4%.