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A kind of blending functions with shape parameters is constructed based on trigonometric polynomial functions. Then the method of generating trigonometric polynomial Coons patch is discussed.

给出一类含参数的三角多项式混合函数,在此基础上构造一类三角多项式混合Coons曲面片,提出带形状参数的双三次三角多项式Coons曲面片的表达式。

In self-organization freeform reconstruction method based on triangulation, each pixel of an image is taken as a bion of self-organization system, and each bion and its two neighbors constitute a triangular surface patch, then this bion adjusts its state in order that the triangle element satisfies the Lambertian reflectance model.

基于三角片化的自由曲面自组织重构方法将图像中的每个象素视为自组织系统中的生命单元,每个生命单元与其相邻的两个单元组成一个三角片,该生命单元调整自己的状态,使其与邻域单元构成的三角片按朗伯反射模型满足原始灰度图像的要求。

In the third chapter, it analyzes the characteristic and the competitive power of cities tourism cycle form tourism supply, tourism demand, citied supportsystem and area superiority.

第三章对长三角都市旅游圈进行分析,从旅游供给、旅游需求、城市旅游支撑体系和区位优势四方面对长三角旅游圈的竞争能力进行分析,最后提出长三角都市旅游圈的战略定位。

The superior approach to the superior wall of the sinus was directed through the oculomotor triangles, the carotid triangles, the clinoid space and the medial triangles safely.

在经海绵窦上入路直接显微手术中,利用上壁动眼神经三角、颈内动脉三角和床突间隙以及内侧三角的手术入路是安全可行的。

The fundamental imaging features of osteosarcoma were showed bone destruction, periosteal reaction, neoplastic bone and soft-tissue mass. Among 49 cases examined by radiography, osteoblastic pattern sarcoma was found in 19 cases, osteolytic pattern sarcoma was found in 13 cases and mixed pattern sarcoma was found in 17 cases. The detection rates of bone destruction, periosteal reaction, soft-tissue mass, neoplastic bone and Codman triangle by radiography were respectively 61.2%, 95.9%, 71.4%, 73.5%and 27.7%. All 10 cases with CT scan were showed bone destruction, soft - tissue mass and neoplastic bone. The detection rates of periosteal reaction,憇ieve sign挶 and Codman triangle with CT scan were respectively 90%, 90% and 11%. The tiny neoplastic bone and"sieve sign"were showed sensitively by CT, but Codman triangle was showed by radiography superior to CT.32 cases with MRI scan presented the normal marrow was replaced by the tumor, which was showed low to intermediate signal intensity on T1-weighted images and promiscuity signal intensity on T2-weighted images. 7 cases presented hemorrhage and 24 cases presented necrosis.

骨肉瘤基本影像表现为骨质破坏、骨膜反应、瘤骨和软组织肿块。49例X线表现为成骨型19例,溶骨型13例,混合型17例;X线对骨质破坏、骨膜反应、软组织肿块、瘤骨和Codman三角的检出率分别为61.2%、95.9%、71.4%、73.5%和27.7%;10例CT表现均可见骨质破坏、软组织肿块及瘤骨,CT对骨膜反应、筛孔征和Codman三角的检出率为90%、90%和11%;CT对显示细小肿瘤骨和筛孔征最敏感,但对Codman三角的显示不如X线平片;32例MRI表现为骨髓腔内正常的骨髓高信号被肿瘤信号所取代,T1WI呈低~等信号,T2WI呈混杂信号,7例合并出血,24例中央坏死囊变,32例增强扫描均呈不均匀强化及瘤周可见水肿区。

Distributor, the retail diesel steinen mouth, Fujitsu V-belt, Germany Ben Slavery XP series of V-belt, multi-groove band, Kaiping Eleusine indica rubber V-belt, the United Kingdom Niu Nasi belt NEWNIX Japan Samsung belt, the conveyor belt, Hunan Carbide spray films, printing machine parts, more than 8,000 varieties of pottery, warehouse-type wholesale sale.

总代理,总经销steinen柴油嘴,日本富士三角带,德国奔奴XP系列三角带,多沟带,开平牛筋橡胶三角带,英国纽纳斯同步带NEWNIX,日本三星同步带,传送带,湖南硬质合金喷片,印花机配件等8000多个陶机品种,货仓式批发出售。

We completed the theory and system researches of the 2D triangulation-based optical rang finding with dual lens,delivered the optics and electronics design for this system in detail,constructed the protype of real-time 2D triangulation-based optical rang finder and gave in-depth analysis and appropriate remedy on the triangulation ranging error.

完成了二维光学双镜头三角法测距的原理与系统研究;详细阐述了二维双镜头三角法测距系统的光学和电子学设计,研制了实时二维双镜头三角法测距系统样机,深入分析了系统测距误差来源并对其进行了修正。

Every harbour is small but combination in administrative divisions inner formation since the rim of Bohai Bay does not realize the long similar triangle , limpid-rization , leading to ring the Bohai Sea harbour resource duplication of similar projects and contending for source of goods , the nothing order racing to control hinderland competing neither samer than long triangle harbour group "an integral whole both wings " develops power state's is especially more fierce than growing a triangle.

但是由于环渤海地区还没有实现类似长三角各港口在行政区划内形成的小组合,也不同于长三角港口群&一体两翼&发展势态的清晰化,导致环渤海港口资源重复建设和争夺货源、抢占腹地的无序竞争比长三角更加激烈。

The main results in this paper as follows: First, a prototype of a shape-based image database retrieval system is completed, it can receive the query mode both by giving an example image and by sketching the desired object on the screen, Second, five shape-based image retrieval methods are realized; Third, an algorithm based on triangulation for shape-based image retrieval is brought forward. In this algorithm, firstly, the edge of the original image is followed and the candidate corners in the original image are detected. Then the counterpoints of the candidate corners in the result of edge follow are found, and the boundary corners whose counterpoints have been found are queued in the order of their counterpoints in edge follow. After these steps, the boundary corners are triangulated and triangles are obtained which can show the true shape of the original image. Finally, shape feature is obtained by calculating the angle histogram of the triangles.

同时本文中主要完成了以下三方面的工作:完成了一个基于形状特征的图象检索的原型系统,可实现例子图象或徒手绘草图两种查询方式;实现了五种利用形状特征进行图象检索的具体方法,并对其进行了分析比较;并且在继承将三角剖分引入形状检索的思想基础上提出了利用三角剖分进行形状检索的一种新算法:先对原图象进行边界跟踪和角点检测;然后寻找初始角点在边界跟踪中的对应点,并对找到对应点的角点按其对应点在边界跟踪中的顺序进行排序;再对排序后的角点进行德洛内三角剖分,得到能表示目标真实形状的三角形序列;最后计算三角形序列的角度直方图作为形状特征,并进行相似性匹配。

Orientation field near core point is changeable which is influenced by core point. Then fingerprint orientation field outspreads. At last, orientation field converges at delta point. This model can explain well why core and delta points exist in pairs in fingerprint images.

基线区域和中心点区域的指纹方向场向外扩张,在三角点区域汇合,且三角点是最终的汇合点,这一模型能比较好地解释指纹中心点和三角点成对出现的原因。

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I didn't watch TV last night, because it .

昨晚我没有看电视,因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。

I'm running my simile to an extreme.

我比喻得过头了。