【摘要】 提出一种新的造影图像心血管边缘提取方法———最大成本法.通过微分法建立边缘成本空间,利用中心线对血管边缘进行区域划分,采用动态规划理论提取边缘区域内最大成本曲线作为血管边缘.结果表明,该方法具有适用性强,提取边缘连续等特点,有助于造影图像血管直径测量和心血管狭窄病变部位检测.更多还原

【Abstract】 A new method called max cost is presented to detect the heart vessel boundary of angiogram.The cost field is built up by differential method.The area of the vessel boundary is segmented according to the centerline.The curve with the max cost in the boundary area is detected by dynamic programming as vessel boundary.The results show this method is robust and the detected boundary is continuous.It is beneficial to measure the vessel diameter and locate the stenosis.更多还原