查询词典 contour forging

The robust method, which improves the GVF and optimizes search by PGA, is proposed to extract contour veraciously in this section. Due to the information exchange between adjoining points by chromosome crossover, the points are driven to optimization positions in the fined-grained model.

因此，本文通过改进GVF Snakes梯度矢量流，并引入遗传优化搜索，提出了一种稳健的目标提取与跟踪算法：即对于收敛于局部极值处的轮廓控制点，利用细粒度遗传算法，将相邻的处于全局最优控制点的信息通过染色体遗传操作传递给这些点，并驱使它们向全局最优处运动。

Electrode contour optimization of arc quenching chamber of a 550 kV 1-break extra high voltage SF6 circuit breaker using the VIGA was carried out to obtain not only a uniform electric field but also a dynamic distribution of electric field strength along different surfaces of electrode and shielding cover.

以550 kV单断口SF6断路器灭弧室为研究对象，进行触头结构优化设计，得到灭弧室内部各触头及屏蔽罩沿面电场分布。

But the active contour model has some disadvantages such as the high complexity of the algorithm and its poor convergence to the weak edges of images.

但是，活动轮廓模型本身也存在很多缺陷，如计算复杂度比较高、图像的弱边缘收敛性比较差等问题。

Some key algorithms were researched here: a "cut-and-sew" algorithm was presented here to resolve the reconstruction problem of adjacent section contour lines which different from shape and polygon vertex count; a random polygon triangulation algorithm based on CDT was studied to resolve the modeling problem of complex geological model with stones and holes inside; a grid-constraining algorithm of judging whether a point is in a polyhedron was studied here to construct the corresponding geological block model which constrained to wire frame model.

研究了构模过程中的若干关键算法：提出"切开-缝合"算法，解决了形状和顶点数目差异较大的相邻剖面轮廓线重构三维形体模型问题；研究了基于约束Delaunay三角剖分的任意多边形三角剖分算法，解决了含夹石或孔洞的复杂地质体构模问题；研究了判断点在多面体内的网格约束算法，以线框模型为约束构建了相应的地质块段体模型。

The clear contour of the workpiece is grabbed. The factors that...

同时，对影响精度的因素进行了讨论和分析。

To twist or curl into a wreathlike shape or contour.

做成环状''。'缠绕'。''、卷曲成环的形状或轮廓

The face contour is represented by zero level set function and approached by evolution of the level set function.

此算法使用零水平集函数对人脸轮廓进行表示，通过水平集函数的演化对人脸轮廓进行逼近。

Methods Through scalp coronal incision, the zygoma was desected and shifted medially and laterally so as to lower the contour of zygomatic bone. Subperiosteal rhytidectomy was performed simultaneously to remodify the facial skeleton and soft tissue.

采用头皮冠状切口入路，将颧骨、颧弓截断向内上方移位，降低颧突及颧弓高度，同期行骨膜下除皱术，对面部骨支架与软组织重新塑形。

Objective The purpose of the study was to determine the effect of the craniofacial contour development by Class II in adolescency.

目的：研究安氏II类错牙合畸形对青春期面部骨轮廓发育的影响。

Key words: Angle's Class II malocclusion; adolescency; craniofacial contour

安氏II类错牙合；青春期；面部骨轮廓

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48