concavities
英 [kɒnˈkævɪtiz]
美
n. 凹; 凹陷; 凹形; 凹状; 凹陷处
concavity的复数
双语例句
- The formation of these microcracks is closely related to local conditions of the Tusion line concavities.
熔合线凹入处的局部条件直接影响微裂纹的形成。 - The irregular with convexities and concavities of pleural surface;
胸膜面凹凸不平； - In order to overcome the problems of traditional snake associated with poor convergence to boundary concavities and sensitive initialization, gradient vector flow based on deformable models is presented to segment tumor region.
为了克服传统的蛇形算法不能收敛于边缘凹陷处以及对蛇的初始化过于敏感的缺点，本文提出用基于可变形模型的梯度矢量流方法提取乳腺X光片中的肿瘤区域。 - Gradient Vector Flow Snake is one of the most effective tools for 2D/ 3 D image segmentation. But GVF Snake can't move into boundary concavities when the concavities are long and thin.
虽然梯度矢量流变形模型是一个有效的2D/3D图像分割的工具，但当图像边缘的凹口又深又细时，变形模型不能进入深凹口，为此提出了迭代梯度矢量流方法。 - An algorithm is presented to improve the active contour models, in which have too small capture range and poor convergence to boundary concavities.
对活动轮廓模型存在的问题，即活动曲线收缩范围小且无法检测图像的凹陷边界，提出了一种改进的算法。 - Conclusion: Root trunk concavities may cause furcation involvement and reduce the efficacy of periodontal therapy.
结论：根柱凹陷可能是造成根分叉病变的原因，并可能是导致牙周治疗效果欠佳的原因。 - In multilayer welding of low-alloy high-strength steels, HAZ microcracks are generally observed at the concavities of the fusion lines near the surface layer, being about 3& 7 mm beneath the surface of the plate and almost perpendicular to the fusion lines.
低合金高强度钢焊接热影响区微裂纹一般集中于多层焊缝盖面焊道熔合线的凹入处，距钢板表面3&7毫米，而与熔合线取向基本垂直。 - With the help of inertia and initial speed, geodesic active contours can enter into special shape concavities easily.
惯性力场和初始速度的出现，使得活动轮廓模型能比较容易的进入特殊形状的凹陷。 - In spite of its superior performance, it is still difficult for gradient vector flow geodesic active contour to enter into special shape concavities and get rid of noise disturbance.
尽管如此，梯度矢量流测地线活动轮廓依然难以进入目标边缘上一些特殊形状的凹陷，并且使轮廓曲线的演化容易受到噪声的干扰。