| 一种图像非线性形变的恢复方法 |
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| 引用本文： | 韩凤磊,庞其昌.一种图像非线性形变的恢复方法[J].光学技术,2003,29(3):310-312. |
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| 作者姓名： | 韩凤磊 庞其昌 |
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| 作者单位： | 中国科学院西安光学精密机械研究所,西安,710068 |
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| 摘 要： | 几何成像系统中非线性形变图像的恢复仍是一个未能很好解决的课题。针对常见的双二次、双三次形变图像,提出了以不完全双二次、双三次插值法拟合形变图像,根据形变的特点采用牛顿迭代法和双线性灰度插值法对图像进行恢复。用所提出的方法对失真图像进行恢复,结果表明,仅选用少量参考点便可得到良好的效果。
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| 关 键 词： | 非线性形变 图像恢复 插值法 迭代法 |
| 文章编号： | 1002-1582(2003)03-0310-03 |
| 修稿时间： | 2002年7月24日 |
A geometry restoration method for image nonlinear distortion |
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| Abstract: | The restoration of nonlinear geometry distortion of image transformation system is the problem solved unsuccessfully. A method is put forward simulating images undergoing nonlinear transformations by biquadratic / bicubic interpolation algorithm. Then Newton's Iteration Method and bilinear interpolation algorithm for chroma are employed to restore those images. Using the method, several real images distortion were restored and results were gotten preferably by several reference points. |
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| Keywords: | nonlinear distortion interpolation iteration method image restoration |
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