CAJ | 학술논문

为正确有效地分割出髋关节的外轮廓，提出了一种基于最佳分割线的股骨近端外轮廓的提取方法。该方法利用自底向上CT序列图像的帧间相似性找到一条分割目标股骨与其他骨骼的闭合分割线，从而利用该分割线来精确定位目标骨骼的位置，并搜索边缘点。实验结果表明，该方法能够准确地识别出股骨近端的外轮廓，自适应强，抗干扰性好。
위정학유효지분할출관관절적외륜곽，제출료일충기우최가분할선적고골근단외륜곽적제취방법。해방법이용자저향상CT서렬도상적정간상사성조도일조분할목표고골여기타골격적폐합분할선，종이이용해분할선래정학정위목표골격적위치，병수색변연점。실험결과표명，해방법능구준학지식별출고골근단적외륜곽，자괄응강，항간우성호。
In order to segment the extern contours of hip joint correctly and effectively, a kind of extraction method for extern contour of proximal femur is presented based on the best segmentation curve. The proposed method can find a closed seg-mentation curve which segments target femur part against remaining femur part by the virtue of frame similarity for bottom up CT image sequences, so as to locate the position of the target femur accurately, and search for the edge point by the vir-tue of the segmentation carve. The result of the experiments show that the proposed method can extract the extern contour of proximal femur from CT images accurately with strong adaptivity and good anti-jamming.