摘要
离焦模糊图像的退化模型可用均匀分布的圆盘函数表示 ,其对应的圆盘半径是需辨识的退化模型参数 (即模糊半径 )。利用模糊图像的频率域中的零点位置来估计模糊半径 ,采用简化Wiener滤波对模糊图像进行复原。实验结果表明该方法能够以较少的运算时间代价获取较好的复原效果 。
The degradation model for defocus blur image can be depicted by uniformly distributed function on circular support region whose radius is model parameter.The blur radius can be estimated using zeros position in blur image in frequency domain.Restoration of defocus blur image by simplified Wiener deconvolution method is presented in this paper.Experimental results show that the approaches can obtain the good restoration effects in less computation time,which is suitable for fast restoration of defocus blur digital image with high Signal-to-Noise Ratio.
出处
《激光杂志》
CAS
CSCD
北大核心
2004年第5期57-58,共2页
Laser Journal
基金
广东省自然科学基金 ( 0 2 10 89)
广东省高教厅自然科学基金 (Z0 2 0 2 0 )资助项目
