CAJ | 학술논문

鱼眼镜头图像的超大广角优点的代价是具有不可忽视的视觉畸变，而鱼眼镜头轮廓提取是畸变图像矫正的前提，结合最小二乘法对镜头轮廓进行圆形拟合，引入迭代修正方法利用计算得出圆心和半径数据对边缘点进行筛选，利用反馈环节进行圆心和半径的修正来保证数据的精确性。另外当镜头无效区域中出现大量反光区时，再引入一种邻域权值的图像二值化方法，该方法对镜头成像区外的反光区有很好的抑制作用。实验表明，该方法精度高，稳定性好，适应性强。
어안경두도상적초대엄각우점적대개시구유불가홀시적시각기변，이어안경두륜곽제취시기변도상교정적전제，결합최소이승법대경두륜곽진행원형의합，인입질대수정방법이용계산득출원심화반경수거대변연점진행사선，이용반궤배절진행원심화반경적수정래보증수거적정학성。령외당경두무효구역중출현대량반광구시，재인입일충린역권치적도상이치화방법，해방법대경두성상구외적반광구유흔호적억제작용。실험표명，해방법정도고，은정성호，괄응성강。
Although with the advantages of super wide angle in the fisheye image ,we can’t ignore large visual distortion from the image .Fisheye distorted image contour extraction is the premise of correcting picture .With the method of least squares fitting circular contour ,we introduce the use of iterative correction method to calculate the center and radius of the data points on the edge of the filter ,we use feedback link to amend center and radius in order to ensure the accuracy of data .Also in this paper ,when there are large reflective areas in the invalid lens area ,we proposed a neighborhood weights method to generate the binary image which could suppress reflex areas outside the region .Experiments show that this method has high precision ,good stability ,and strong adaptability .