3D reconstruction is one of the most challenging problems in computer vision. This project uses CAD model to increase the accuracy,robustness and speed of 3D reconstruction and five different works are conducted: 1 research on space curve 3D reconstruction method based on high curvature point nad turning point; 2 free-form curve 3D reconstruction based on B-spline and BURBS; 3 Active surface affine reconstruction based on single frame; 4 Matching and reconstruction of 3D sparse points; Data fitting method based on the iteration of nearest point.

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This brush 10 has a curved core 11 to which the bristles are connected, and presents a section varying over at least a part of length of the brush in the geometrically non-similar form. The above section at least at one point of the core is asymmetric in relation to a plane perpendicular to the plane of curvature of the core in the above point.

本發(fā)明涉及一種刷子10国产Av无码精品线上线下，具有連接有刷毛的彎曲軸芯11一级特黄免费电影网站，在刷子長(zhǎng)度的至少一部分上具有變化的截面，且該變化方式在幾何上是不相似的成年妇女观看在线视频网站大全，位于軸芯的至少一點(diǎn)處的所述截面相對(duì)于垂直于所述點(diǎn)處軸芯的曲面的平面是不對(duì)稱的性生大片免费观看视频网站一。

For the bottom-up attention process, areas of interest that deserve visual attention are formed by a sequentially extracting of feature map, conspicuity map, and interesting map. Firstly, based on Treisman's feature integration theory and the characteristics of orientation and frequency selective nerve cells in biological cortex, we propose a new 2D optimal quadrature filter in the meaning of minimum energy loss to extract intensity, edge, orientation, symmetry, curvature and comer features to form the feature maps. Then based on the local competent and global cooperative perception character of biological vision, we design a kind of competent/cooperative filter and use a set of such filters to extract conspicuous locations that will most likely to cause visual attention from feature maps to form conspicuity maps.

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This paper analyzes the deviation of cambered form witch is composed of batten and sheet in concrete construction,and then educes a relationship between width of sheet,deviation of cambered form and curvature radius of camber,in order to solve the problem of assemble spline form work and increase construction quality of concrete curved surface.

分析了用板條和鐵皮組裝而成的曲面模板在曲面混凝土施工中的誤差情況免费人成A片在线视频，同時(shí)給出了施工中板條寬度又插又爽的视频免费、曲面誤差、曲面曲率半徑之間的關(guān)系91色老久久精品偷偷鲁无毒，以解決好拼裝樣條模板的問(wèn)題欧美视频自拍日韩在线观看免费网站，從而提高混凝土曲面的施工質(zhì)量。

This paper proposes a robust filter function, called trilateral filter function, to filter the noises in the domains of surface curvature, normal and position at each sample point while the local surface is fitted in a quadratic form. By optimizing the filtering result of curvature tensor, our approach is capable of preserving the feature on the target model.

通過(guò)在掃描模型每個(gè)采樣點(diǎn)處擬合一個(gè)二次型曲面亚洲性夜夜综合久久麻豆，設(shè)計(jì)了一個(gè)魯棒的濾波函數(shù)--三邊濾波函數(shù)黄网站直接看；應(yīng)用該函數(shù)分別對(duì)模型表面上每個(gè)點(diǎn)的法線、曲率和位置進(jìn)行濾波未满进入的黄色网站；通過(guò)對(duì)曲率的濾波結(jié)果進(jìn)行優(yōu)化女人超碰黃色，可有效地保持三維模型表面上的特征。

The shape-form analysis and load analysis were done by nonlinear FEM. On the basis of surface FEM grid nodes, geometry property research of structure curved surface was progressed, including normal vector, GAUSS curvature, mean curvature and principal direction vector. In this process, the approximate expression of surface didn't need to he known.

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Aimed at the feature of footprint range image, the paper has defined the concept of the form index and proposed the segmentation method based on the mean curvature and Gaussian curvature.

本文針對(duì)足跡深度圖像的特點(diǎn)一区二区三区a毛片视频，定義了形狀索引的概念夜色视频国产欧美一区色欲，提出了一種基于高斯曲率和平均曲率的分割方法久久九国产。

In this article,we mainly study the space-like submanifolds with parallel mean curva-ture vector,constant scalar curvature or constant square length of the second fundamental form,respectively.We obtain some pinching theorems and rigidity results by estimating Laplace of the square length of the second fundamental form of the such submanifolds and using yaus maximum principle or Stokes Theorem.

本論文主要研究de Sitter空間中具有平行平均曲率向量、常數(shù)量曲率或第二基本形式模長(zhǎng)平方是常數(shù)的三類類空子流形亚洲日韩在线中文字幕三区，并通過(guò)分別估計(jì)三種情形下子流形的第二基本形式模長(zhǎng)平方的Laplace9972国产在线超碰，利用Yau的極大值原理和Stokes定理，獲得了這些子流形的一些拼擠定理和剛性定理欧美黄色免费网站视频。

Posterior curvature - The posterior shape of the dental arch has been described in the literature as a straight line (the Bonwill-Hawley arch form) and a rather dramatic curvature.

后曲率-在后形狀牙弓已在文獻(xiàn)中描述的一條直線（在Bonwill一霍利拱形式）和一個(gè)相當(dāng)戲劇性的曲率