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。
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.
出处
《光学技术》
CAS
CSCD
2003年第3期310-312,共3页
Optical Technique
