边缘的

The paper showed the conception and species of the edge,and deeply explored the differential operator methods of first order and differential operator methods of second order.

通过介绍边缘的概念及种类，对传统的一阶微分方法和二阶微分方法进行了深入的探索，对各种微分方法的原理及过程，以及各种方法对图像的处理结果进行了对比分析，最后对遥感图像边缘提取方法所面临的问题和今后的发展方向表达了自己的观点。

But now, drawing back to the edge of the table, gradually lower your eye (thus bringing yourself more and more into the condition of the inhabitants of Flatland), and you will find the penny becoming more and more oval to your view, and at last when you have placed your eye exactly on the edge of the table (so that you are, as it were, actually a Flatlander) the penny will then have ceased to appear oval at all, and will have become, so far as you can see, a straight line.

但是，现在，向桌子的边缘靠下去，你的视线逐渐降低（这样可以使你越来越进入平面国居民的状态）。你会发现这枚硬币逐渐变成了椭圆形，并且越来越扁，最后，当你的眼睛正正好在桌子边缘的时候（这样你就是，就好象是，真正的平面国国民了），这枚硬币不再呈现出椭圆形，正如你所看到的，它已经变成直线了。

It's main feature is that we can obtain many types of edges simultaneously by detecting the maximum value of local energy.After that,we get the initial edge.

对于边缘的检测，近年来，人们的研究兴趣更多的转向了局部能量的方法，这是一种基于局部相位的方法，它的特点是通过局部能量的最大值可以同时得到不同类型的边缘。

Based on extended Linsker's network developed by Wimbauer et al.,we build a model for the receptive field of toad's R3 ganglion cell and a model for the receptive field of the nLM neuron of pigeon. Computer simulations on the 'head/tail preference' property,the configurational selectivity of the R3 neuron,and the selectivity for contrast,direction,orientation and the length of the moving edges of the nLM neuron,have been made. The simulation results are consistent with the physiological experiments qualitatively.

为揭示这类神经元的信息加工原理，以Wimbauer等人提出的时延Linsker网络为基础，通过将不同的时空动态感受野线性组合，建立了蟾蜍视神经节R3类神经元和家鸽扁豆核神经元的感受野模型，并模拟了R3神经元对蠕虫样刺激物的"头/尾偏爱"特征，细胞对刺激物的构型选择性以及nLM神经元对运动边缘的反差、方向、边缘朝向和长度的选择性。

A thousand times over in that half-hour, with intent, strained, and uneasy eyes Rostov scanned the thickets at the edge of the copse with two scraggy oaks standing up above the undergrowth of aspen, and the ravine with its overhanging bank, and "uncle's" cap peering out from behind a bush on the right.

就在这半个钟头以内，罗斯托夫用那紧张而不安的、逼视的目光千次地打量森林的边缘，一些别种幼树夹杂在山杨树中间，上面耸立着两颗稀疏的橡树，他还注视着被雨水冲掉边缘的沟壑以及右面那座灌木林后依稀可辨的大叔的皮帽。

The contours of SDC images processed in our paper immerse in noise familiar to actual contours, so which is difficult to extract.

本文所处理的胃部的SDC图象中物体的边缘就处在与边缘的斜率和灰度梯度极为相近的噪声中，所以较难提取。

Fruit dehiscent silicles or rarely siliques, obpyriform, obovoid, or rarely linear, shortly stipitate; valves leathery, often with a prominent midvein, smooth, margins of 2 valves flattened and connate, apex abruptly caudate and extending 1-2 mm into style; replum rounded, concealed by connate margins of valves; septum complete; style 1.5-4 mm; stigma capitate, entire.

果开裂短角果或很少长角果，倒梨形，倒卵球形，线形的或很少，具短柄；裂爿革质，通常具一突出，平滑，边缘的扁平的2裂爿和，尾状的先端突然和把1-2毫米延长到花柱那里；假隔膜绕行，被合生的裂片边缘隐藏；隔膜完全；花柱1.5-4毫米；柱头头状，全缘。

Aiming to increase the number of local caregivers to 5,000 within a year, volunteers say with confidence that they will continue to spread love to the peripheries of society, and instilling hope in HIV/AIDS patients and orphans.

从早到晚，南非本土志工勤奋的照顾流落社区边缘的人，在最近举办的第14届本土志工研习会，共有115位本土志工参加；志工的目标是在一年之内，让志工人数突破5000人，他们信心满满的说，要继续的爱洒社区边缘，将希望带给爱滋病患以及孤儿。

Culms ca. 8 m, ca. 2.5 cm in diam.; internodes dull purple-green, becoming green with lower internodes tinged purple, to 35 cm, initially white powdery; wall ca. 5 mm thick; nodal ridge slightly elevated, as prominent as sheath scar; intranode ca. 5 mm. Culm sheaths pale red-brown, sometimes tinged green, sparsely to densely speckled, dark brown and glabrous along margins, sparsely strigose; auricles and oral setae well developed, purple; ligule purple, truncate to arcuate, short but broad, margin fringed with purple-tinged cilia; blade reflexed, purple to green, crinkled.

秆约8米，约厘米直径；节间愚笨紫色绿色，变得绿色与低节间紫色地微染着，令35厘米的是，最初白色粉状；壁约5毫米厚；节的稍隆起脊，象鞘痕一样突出； intranode约5毫米竿箨浅红棕色，有时微染绿色，疏生对浓密有斑点，暗褐色和沿边缘，疏生糙伏毛；叶耳和口头的刚毛发育良好，紫色；叶舌紫色，削去到弧曲，短但是辽阔，用紫色微染的cilia作为边缘的边；叶片反折，对绿色，皱曲紫色。

When the IAU's value for k is used to calculate these times, they must be corrected to accommodate low valleys or high mountains along the Moon's limb. The calculation of these corrections is not trivial, but is necessary, especially if one plans to observe near the path limits (Herald 1983). For observers near the central line of a total eclipse, the limb corrections can be more closely approximated by using a smaller value of k, which accounts for the valleys along the profile.

当IAU的K值被用来计算这些时刻，他们必须纠正并使其符合月球边缘的低谷和高山，这种修正并不是不重要的，相反是很必要的，特别是计划观察靠近极限路径时（Herald 1983），对于靠近全食中心线的观测者来说，在使用更小K值的情况下，边缘修正会被更准确地近似，这个K值代表山谷沿着轮廓。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了