查询词典 hidden line algorithm

The method comprises the following: a step of calibrating a camera, which is to utilize a Taylor series model to calibrate an omni-directional vision sensor so as to obtain internal parameters of the camera; a step of obtaining epipolar geometric relation, which comprises the steps of calculating an essential matrix between binocular omni-directional cameras and extracting the rotation and translation component of the cameras; a step of correcting an outer polar line, which is to correct the outer polar line of a shot omni-directional stereo image so as to allow a corrected polar quadratic curve to coincide with an image scan line; and a step of three-dimensional reconstruction, which is to carry out feature point matching to the corrected stereo image and calculate the three-dimensional coordinates of points according to matching results.

该方法的步骤包括：相机标定：利用泰勒级数模型对全向视觉传感器进行标定，得到相机内参；对极几何关系求取：包括计算双目全向相机之间的本质矩阵，并从中提取相机的旋转和平移分量；外极线校正：对所拍摄的全向立体图像对进行外极线校正，使校正后的极二次曲线与图像扫描线重合；三维重建：对校正后的立体图像对进行特征点匹配，根据匹配结果计算点的三维坐标。

IHT is make used of to proceed line edge fitting in the actual engineering. The auto-adaptable image edge detection method is applied to detect image edge in real project, and the region of image edge detected is limited within 1 pixel. IHT is also applied to fit line edge. Comparing with MHT, the result of IHT indicates its speed quick, the accuracy high, and anti-jamming-quality strong, exactly said that the accuracy of IHT fitted line is less than 0.1 pixel for polar distance and less than 0.01deg for polar angle.

自适应边缘检测方法被应用于检测实际工程的图像边缘，检测到的边缘区域在亚像素之内；修正的Hough 变换算法也被运用于相应工程的直线拟合，与传统的Hough算法相比，结果表明其速度更快、精度更高，抗干扰能力更强，其拟合直线的极径精度可达到0.1个像素，极角精度可达0.01度。

The assumption of the variable tendency of slip-line in active zone is made based on the numerical results. Combining the slip-line equations and boundaries, the formula of bearing capacity is deduced which can consider the density of soil. The formula of bearing capacity of strip footing on ponderable soil is also deduced assuming that the slip-line field of ponderable soil is the same with that of weightless soil, which is proved to be an upper-limit solution, as its the same with that deduced by the upper-limit method in Prandtl mechanism.

在数值计算结果的基础上，对有重土地基主动区滑移线变化趋势进行了合理假设，根据边界条件和特征线方程求得了条形基础极限承载力的解析表达式，该表达式可以计算考虑土重度的条形基础的极限承载力；获得了不考虑重度对滑移线场影响时(即有重土在普朗特尔滑移线场下)极限承载力的解析表达式，该表达式与普朗特尔机动场对应的极限承载力上限解的表达式相同，这就从理论上证明了在土重度对滑移线场没有影响这一假定前提下得到的极限承载力是一个上限；(3)利用上限定理求解了极限承载力的最小上限。

Convenient transportation and living life to complete her life supporting the foundation : In Pudong South Road, Pu built a 20-30 on the road, public transport routes; Construction of rail lines in the 6th and 4th Line has 23 stations within the region, which will be held on the 4th line with the opening years of orbital Line connecting a town Link; facilities have Puna Hospital, Yan Chai Hospital, and build schools, from the Grand Hotel, Yi early Lotus sign, construction firms, engineering firms and the post office.

便利的交通和齐全的生活配套为居住生活铺垫了基础：在浦东南路、浦建路上有二三十条公交路线；建设中的轨道交通四号线和六号线在区域内各设有两三个站点，其中四号线将于年内通车并与轨道三号线连接形成市中心环线；配套设施有浦南医院、仁济医院、文建中学、由由大酒店、易初莲花大卖场、建行、工行和邮局等。

We have 1500 tons / year of pure m-cresol production line, 1,000 tons / year of p-nitrobenzoic acid production line and 2000 tons / year production line of the one resorcinol.

我们拥有1500吨/年纯间甲酚生产线、1000吨/年对硝基苯甲酸生产线及2000吨/年间苯二酚生产线各一条。

Chinese traditional art in the organization and the use of the line reached the fiery art of pure green height of the line, texture and line image of the pursuit of breakthroughs in design innovation and use can often achieve better results.

中国传统艺术的组织和行使用达到纯线，质地和线在设计创新和使用往往可以取得更好的效果突破的追求绿色形象的高度火热的艺术。

Contractors in the steel floor plate area, with 3W \ 2W-type processing line and the only processing Necking rib and purlin line processing line.

在钢质楼承板方面，配有3W\2W型加工线及国内唯一的缩口肋加工线及檩条加工线。

Without doubt, baidu HI is not a simple IM, he is Baidu the rachis of whole product line, it is the soul of the product line of Baidu future and engine, it will be perforative all products with integrated Baidu and service, include to search, stick, know and the series product line such as the C2C platform that is about to roll out.

毫无疑问，百度HI不是一个简单的IM，他是百度整个产品线的脊柱，是百度未来的产品线的灵魂和发动机，它将贯穿和整合百度的所有产品和服务，包括搜索、贴吧、知道以及即将推出的C2C平台等系列产品线。

Unplug the memory using eraser to the memory of the "golden finger" after cleaning, retaining only a 168-line memory module or a group of 72-line memory module (in the motherboard 586 is installed on 72-line memory required for the two group), try to re-insert is installed, if not yet, please check the memory replacement method.

请用橡皮为显示器卡的"金手指"打扫卫生后重新插入或换只插槽试试，若还是无显示，换一块好显示卡插上试试。

By detecting the reflected ray from the white ground with a black guiding line, the car can move along the given line automatically. Especially the car can move back to the guiding line when turning aside.

采用与白色地面色差很大的黑色路线引导小车按照既定路线前进，并能在意外偏离引导线的情况下自动回位。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。