一种提取鱼眼镜头成像区域的算法及实现

使用鱼眼镜头拍摄图像变形严重,精确提取其成像区域是进行图像校正等后期处理的必要前提。针对传统提取成像区域算法对有效区域噪声敏感,实现过程复杂等缺点,提出一种改进的提取鱼眼镜头成像区域的方法。实验表明,该方法可以准确定位鱼眼镜头成像区域的圆心和半径,精度高,鲁棒性好,且实现简单,有良好的实用价值。

An Algorithm and Implement of Fish Eye Image Contour Extraction

The use of fisheye lens causes strong distortions in the images. An accurate contour extraction of the effective zone in the image is prerequisite for image correction. Traditional algorithms are sense to the noise in the effective part, which lead those ineffective. Also they are complex. An improved algorithm is proposed in this paper to extract the effective area in the images. The experiment results show that the algorithm can detect the center position and radius accurately and has an obvious precision, and with a simple implement which leads to a highly practical value.