中国医学装备
中國醫學裝備
중국의학장비
China Medical Equipment
2015年
11期
24-26,27
,共4页
内中膜%边界跟踪%代价函数%超声图像
內中膜%邊界跟蹤%代價函數%超聲圖像
내중막%변계근종%대개함수%초성도상
Inner-medium membrane%Boundary tracing%Cost function%Ultrasonic image
目的：研究一种颈总动脉超声图像内中膜边界识别跟踪方法，为采用更为简便的方法提取内中膜边界提供基础。方法：规定一个代价函数，从前导程序给定的初始定位点出发，向两侧逐列延伸，在每一像素列上计算代价函数的值，寻找代价函数最小值的点的集合，直至满足程序规定的终止条件后，代价函数的计算过程终止。程序记录下代价函数最小值的所有点的坐标和灰度值。结果：在临床采集的图像中可以跟踪得到内中膜边界点集合并在输出图形中显示，程序后台存储了点集合的坐标及相应灰度数据。结论：该方法可以在较为清晰的超声图像中实现颈总动脉内中膜边界跟踪。
目的：研究一種頸總動脈超聲圖像內中膜邊界識彆跟蹤方法，為採用更為簡便的方法提取內中膜邊界提供基礎。方法：規定一箇代價函數，從前導程序給定的初始定位點齣髮，嚮兩側逐列延伸，在每一像素列上計算代價函數的值，尋找代價函數最小值的點的集閤，直至滿足程序規定的終止條件後，代價函數的計算過程終止。程序記錄下代價函數最小值的所有點的坐標和灰度值。結果：在臨床採集的圖像中可以跟蹤得到內中膜邊界點集閤併在輸齣圖形中顯示，程序後檯存儲瞭點集閤的坐標及相應灰度數據。結論：該方法可以在較為清晰的超聲圖像中實現頸總動脈內中膜邊界跟蹤。
목적：연구일충경총동맥초성도상내중막변계식별근종방법，위채용경위간편적방법제취내중막변계제공기출。방법：규정일개대개함수，종전도정서급정적초시정위점출발，향량측축렬연신，재매일상소렬상계산대개함수적치，심조대개함수최소치적점적집합，직지만족정서규정적종지조건후，대개함수적계산과정종지。정서기록하대개함수최소치적소유점적좌표화회도치。결과：재림상채집적도상중가이근종득도내중막변계점집합병재수출도형중현시，정서후태존저료점집합적좌표급상응회도수거。결론：해방법가이재교위청석적초성도상중실현경총동맥내중막변계근종。
Objective:Give a method for tracing boundary of inner-medium membrane in the ultrasonic image of common carotid artery.Methods: Giving a cost function before the programme begins to search the pixel point set whose cost function have the minimum value. The searching process starts from an initial anchor point given by the precedent programme. The calculation of cost function on each pixel point column on both sides of the initial anchor point will not stop until the terminal conditions are fulfilled. The programme will record the coordinates and pixel values of all the points with the minimum cost function value obtained from the calculation.Results: It can trace the boundary of inner-medium membrane in the CCA image from a clinical exam and can export the processed image with highlighted area. There is a daemon that records the coordinates and pixel values of the point set.Conclusion: This method can trace the boundary of inner-medium membrane in the CCA ultrasonic image when the CCA image is distinct.
