北京生物醫(yī)學(xué)工程

基于SMDC連接代價(jià)算子的肺血管分割算法研究

Algorithm of Lung Vessel Segmentation Based on SMDC-Connection Cost

作者：黃煜峰王興家賴凱童同李傳富馮煥清

單位：中國科學(xué)技術(shù)大學(xué)電子科學(xué)與技術(shù)系(合肥230027)

關(guān)鍵詞： SMDC連接代價(jià)；肺血管分割；數(shù)學(xué)形態(tài)學(xué)；灰度映射

分類號：

出版年·卷·期（頁碼）：2010·29·3（235-240）

摘要：

針對CT肺圖像中的血管分割，提出一種基于SMDC連接代價(jià)算子的分割方法。首先設(shè)計(jì)一種背景填充技術(shù)，對灰度變換范圍有選擇性地收縮或拉伸，有效地消除背景噪聲對血管分割的影響，然后應(yīng)用SMDC連接代價(jià)算子對肺部區(qū)域進(jìn)行分割，最后用實(shí)驗(yàn)證明了該方法的有效性。相似度分析表明自動與手工分割結(jié)果吻合率高于95%，并能較好地保留細(xì)節(jié)。

In order to solve the difficulty of lung blood vessel’s extraction, we propose a new segmentation method based on selective marking and depth constrained (SMDC)-connection cost. First, a new method of painting background based on intensity nonlinear mapping is brought forward for getting rid of the influences of background. Then, SMDC-connection is applied to segment the lung blood vessel. Finally, comparative experiments show the efficacies of this method. Then a case with normal slices is used to analyze the similarity between the results from computerized segmentation and handwork, and a superposition proportion above 95% is achieved and the details are well presented.

參考文獻(xiàn)：

［1］高齊新，楊金柱，趙大哲,等. 一種基于Canny算子的levelset肺部血管分割算法. 系統(tǒng)仿真學(xué)報(bào),2008, 17(1):5534-5537.
［2］Kiraly AP, Pichon E, Naidich DP, et al. Analysis of arterial subtrees affected by pulmonary emboli. Medical Imaging 2004: Image Processing, 2004, the SPIE, 5370：1720-17296.
［3］Zhang H, Bian Z, Jiang D, et al. Level set method for pulmonary vessels extraction. IEEE International Conference on Image Processing, 2003, II: 1105-1108.
［4］Prêteux F. On a distance function approach for gray-level mathematical morphology//Mathematical Morphology in Image Processing. Dougherty ER, ed. New York: Marcel Dekker, 1992.
［5］Fetita CI, Franoise Prêteux, Catherine Beigelman-Aubry, et al. Pulmonary Airways: 3-D Reconstruction From Multislice CT and Clinical Investigation. IEEE Trans Med Imag, 2004，23：1353-1364.
［6］周穎玥,馮煥清,李傳富,等. 一種從胸HRCT圖像序列分割肺的自動化方法. 北京生物醫(yī)學(xué)工程, 2008，27(1):6-10.
［7］Heinemann EG. Simultaneous brightness induction as a function of inducing and test field luminances. Journal of Experimental Psychology, 1955, 50 (2): 89-96.
［8］鄭罡,王惠南,李遠(yuǎn)祿,等. 基于Chan-Vese模型的樹型結(jié)構(gòu)多相水平集圖像分割算法. 電子學(xué)報(bào), 2006, 34(8):1508-1512.

服務(wù)與反饋：

【文章下載】【加入收藏】

提示：您還未登錄，請登錄！點(diǎn)此登錄

51黑料吃瓜在线观看,51黑料官网|51黑料捷克街头搭讪_51黑料入口最新视频