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首页> 外文期刊>Medical image analysis >Automatic segmentation of human brain sulci.
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Automatic segmentation of human brain sulci.

机译:人脑沟的自动分割。

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The neocortical surface has a rich and complex structure comprised of folds (gyri) and fissures (sulci). Sulci are important macroscopic landmarks for orientation on the cortex. A precise segmentation and labeling of sulci is helpful in human brain mapping studies relating brain anatomy and function. Due to their structural complexity and inter-subject variability, this is considered as a non-trivial task. An automatic algorithm is proposed to accurately segment neocortical sulci: vertices of a white/gray matter interface mesh are classified under a Bayesian framework as belonging to gyral and sulcal compartments using information about their geodesic depth and local curvature. Then, vertices are collected into sulcal regions by a watershed-like growing method. Experimental results demonstrate that the method is accurate and robust.
机译:新皮层表面具有丰富而复杂的结构,包括褶皱(回旋)和裂隙(沟)。苏尔奇(Sulci)是皮质方向重要的宏观地标。龈沟的精确分割和标记在有关人脑解剖和功能的人脑图研究中很有帮助。由于它们的结构复杂性和对象间的可变性,这被认为是一项艰巨的任务。提出了一种自动算法来准确地分割新皮层龈沟:使用关于它们的测地线深度和局部曲率的信息,在贝叶斯框架下将白/灰质界面网格的顶点分类为属于回旋和沟隔。然后,通过分水岭状生长方法将顶点收集到沟区域。实验结果表明,该方法准确可靠。

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