查询词典 edge element

Though comparing Canny operator and center B spline dyadic wavelet, the following conclusion is proven in this dissertation: a Center B spline function has tight support and Canny operator hasn't. b Center B spline function asymptotic convergence to Gaussian function and the derivative of Center B spline function asymptotic convergence to Canny operator. c The derivative of fourth order center spline B function is more suitable as a optimal edge detector than Canny operator. d Center B spline function can balance the smoothing and approximation of original data, and the fourth center B spline function is the only optimal solution of two order smoothing problem. e The error between the valve of time-frequency uncertainty of the fourth center B spline function and the lower bound of time-frequency uncertainty does not exceed 0.143% of the lower bound. f The derivative of center spline B function can construct a stability dyadic wavelet and can give a fast algorithm for multiscale edge detection, but Canny operator can do neither.

作者给出了Canny算子与中心B样条二进小波严格的比较证明，得出如下结论：a中心B样条函数具有紧支集，Canny算子不具有紧支集。b中心B样条函数的极限收敛于高斯函数，中心B样条函数的导数收敛于Canny算子。c四阶中心B样条函数的导数比Canny算子更接近最佳边缘检测滤波器。d中心B样条函数比高斯函数更能兼顾对原函数平滑和逼近的折中要求，并且四阶中心B样条函数是二阶逼近问题的唯一最优解。e四阶中心B样条函数的时频测不准关系值与时频测不准关系下界的逼近误差不超过0.143％。f中心B样条函数的导数可以构成稳定的二进小波，存在快速的多尺度算法；而Canny算子不构成稳定的二进小波，无法给出快速的多尺度算法。

"One architect said to me, 'I appreciate that you're at the cutting edge of design and development, but I don't want to be cut by that edge," Smith says.

"有个建筑师对我说，'很欣赏你走在设计领域的前沿，但我并不想走得太超前。'"史密斯说。

Coupled with a Power Spine Backstay for increased lateral mobility and edge to edge support the B by Burton Modern snowboard boots give your feet the respect they deserve.

加上电力脊柱Backstay增加横向调动和边缘到边缘支持B的现代伯顿滑雪鞋让你的脚尊重他们应有的重视。

Fix the edge bander on the blanket to band small woodpiece. Hold the edge bander in hand, to band big woodpiece.

封小型工件时可固定机器封边，较大工件封边可固定木板手提机器封边。

Shanghai Inspection Center for Quality of Electromechanical Products confirmed Table Sliding Saw, CNC Panel Sizing Machine, Manual Edge Bander, and Edge Bander as their normal supervision and inspection products. CNC Panel Sizing Machine is listed into leading product in Shanghai Key Enterprise and actualized quality control.

精密推台锯、锯片往复式锯板机、双面涂胶曲直线封边机、全自动直线封边机先后被上海市机电产品质量检测中心确定为正常监督检验的产品，锯片往复式锯板机被列为上海市重点企业主导产品实施质量监控。

Maybe I can not be like the other students on edge as the Edge Reading.

也许我就不能像其他留学生那样边工边读。

The program can be completed on the edge of an image detected by the edge of the image, follow-up to deal with.

详细说明：该程序可以完成对一幅图像的边缘检测，得到图像的边缘，进行后续处理。

The validity of above methods were proved by experiment Secondly, applied HHT to edge detection of fundus image and proposed a method of edge detection based on Bidimensional Empirieal Mode Decomposition.

其次，本文将HHT方法应用于眼底图像边缘检测，提出了基于二维经验模式分解（Bidimensional Empirical Mode Decomposition，简称为BEMD）的图像边缘检测算法。

As the edge of the land and wet eco-system, the landscape ecological edge effect of urban waterfront area is manifest, such as complex biome structure and diverse habitat. It's also the most important recreational space of the city.

简介： 城市滨水区处在陆地与湿地生态系统的边界，其景观生态边界效应明显，如生物群落结构复杂，生境多样等，但同时也是城市游憩休闲空间的重要载体。

To avoid blurring of the real edge, this algorithm also combined the gradient information of several block boundaries to distinguish the blockiness and the real edge.

为了避免真实边缘被模糊，该块效应消除算法还联合多个块边界的梯度信息来区分块效应与真实边缘。

There are two types of gold deposits in this area, namely altered rock type and quartz vein type.

本区金矿床包括两种类型：柴胡栏子金矿床为蚀变岩型金矿；莲花山和红花沟金矿床属石英脉型。

You were home and it was two weeks ago.

你回到了家里。当时是两周前。