内边缘

本文对原始虹膜图像进行中值滤波后，对滤波后的虹膜图像进行了形态Harr小波变换，得到了虹膜的内边缘，实验结果比较理想。

In the paper , after original iris image is treated through the median filter , then using morphology Harr wavelet transform , at last iris inner edge is got .

虹膜内边缘定位的齿形变换方法

Dentiform transformation method of iris inner edge location

结内边缘区B细胞淋巴瘤临床病理观察

Nodal marginal zone B - cell lymphoma : a clinicopathological observation

从工业CT图像探测断面内边缘的小波分析方法

Detecting edges within a cross section from ICT by wavelet method

CT表现均为肾上腺区域内边缘光滑锐利的类圆形肿块。

CT of14 cases revealed sharply marginated suprarenal mass , usually round or oval .

介绍了在工业计算机断层扫描成像（ICT）中探测工件断面内边缘的小分析波方法。

The wavelet analysis method , used in ICT to detect edges within a cross section is introduced .

扫描隧道显微镜分析表明，沉积的In原子优先吸附在台面上沿着台阶内边缘的位置，并在两个Si的二聚体链之间形成稳定的In二聚体。

High-resolution scanning tunneling microscopic images reveal that the deposited In atoms preferentially form In dimers between the two neighboring Si dimer rows on the lower terrace along the step edge , due to the high coordination of these positions .

提出一种基于Snake模型的虹膜定位算法：采用Canny检测算子定位虹膜内边缘，运用Snake模型锁定虹膜外边缘。

In this paper , a new iris localization algorithm based on snake model was proposed : the inner boundary is found using Canny edge detector and the outer boundary is localized by Snake model .

改进算法采用Canny算子进行边缘检测，采用阈值分割和灰度投影定位内边缘，采用搜索白像素点的方法定位外边缘。

Improved algorithm using Canny operator to detect edge , using threshold segmentation and gray projection to locate inside edge and using the method that search white pixels to locate outside edge .

首先根据虹膜图象的整体灰度分布信息，利用边缘检测算子提取虹膜的内边缘图象，然后利用圆的相交弦性质以及投票策略提取虹膜的中心，最后利用Hough变换的半径直方图投票策略提取虹膜内外径。

Based on this idea , edge detector and gray distributing information are used to extract iris interior edges , intersecting chord properties and voting scheme is used to search iris circle center . Then iris interior and exterior radius detected by using 1D radius histogram of Hough transform .

一种基于区域标记的虹膜内边缘定位新算法

A new algorithm for location of iris inner boundary based on region marking

基于灰度曲线几何特征的虹膜内边缘定位方法

Location method of iris inner boundary based on geometrical features of the curves of gray levels

为了保证虹膜定位的准确率，我们对内边缘的定位分为粗定位和精定位两部分。

In iris inner boundary location , we will divide it into two parts : rough location and accurate location .

最后，在虹膜识别装置上进行虹膜图像的噪声处理和虹膜图像的内边缘提取工作。

The last , the paper achieves the noise disposal of the iris image and the interior edge pick-up of the iris image .

为了让眼睛看上去更白，使用白色的眼线笔沿着下眼睑的内边缘画一条线。

To make your eyes look whiter , use a white eyeliner pencil to draw a line along the inner rims of the lower eyelids .

根据局部区域内边缘的直线特性，求得小邻域内直线段的高精度位置；

According to the straight property of the edge in the local region , the line segment is first localized with high precision in small neighborhood .

针对虹膜内边缘易变形，外边界边缘模糊从而虹膜定位困难等问题，提出了一种快速虹膜定位算法。

A fast iris location algorithm is proposed to aim at the problems such as inner edge deformation in iris and blurring outer edge leading to difficult iris location .

实验结果表明此方法算法简单、计算量小、抗干扰性强，并且能够准确的定位虹膜的内边缘。

Experiment results show that the proposed method is simple , requires minor calculations , exhibits a strong ability to reject noise , and is accurate in locating the iris inner boundary .

结果表明，地基沉降量随着负压值的增大而增加，负压值沿深度和宽度的传递都是有一定范围的，侧向位移在筒内边缘达到最大值，越远离筒壁位移越小。

The results show that the foundation deformation raise with the increase of negative pressure value , and the transmission of negative pressure along depth and width is in a certain range .

在粗定位过程中，根据内外边缘的灰度特征，对内边缘采用阈值分割法提取并加以定位，对于外边缘，采用灰度梯度法并结合一些先验知识进行定位。

Secondly in the stage of coarse localization , the inner iris boundary is extracted and localized by applying binary segmentation ; the outer boundary is localized by gray gradient and transcendental knowledge .

再根据边缘区域内边缘的全局直线特性，用线段的中点来拟合整个直线边缘，得到亚像素精度的图像边缘。

Since the edge also has global straight property in the whole edge region , the midpoint of the line segment is used to fit the straight edge by least square method to get subpixel edge location .

先利用最小平均灰度值法粗定位虹膜的内边缘，然后在此基础上将环形区域映射成矩形区域，并利用梯度检测算子精确定位更接近真实瞳孔边界的虹膜内边缘。

Firstly , we use the minimum average gray method to locate the innner boundary roughly . Then on the basis of this , we map the annular region on the rectangular region for the iris inner boundary accurate detection .

该方法运用投影法和圆匹配检测的微积分算法对虹膜内边缘进行定位，采用圆的几何特征和最小二乘法对外边缘进行精确定位。

The method uses the projection method and the round match detection calculus algorithm to position the inner edge of the iris , and employs the circular geometric features and the least squares method to precise position the external edge of the iris .

为了解决以往虹膜内边缘（瞳孔边缘）定位方法算法复杂、计算量大和抗干扰性差的问题，提出了一种新的内边缘定位方法。

To reduce the complexity and calculation burden associated with locating an iris inner boundary , as well as to enhance noise rejection , a new method is proposed for locating an iris inner boundary based on the geometrical features of the curves of gray levels .

本文从理论上建立了能在偏转空间产生均匀磁场的偏转线圈内边缘曲线的方程，以及由此方程所确定的偏转线圈匝数密度分布的表示式。

The equations of the internal edge curves of deflection coils that can produce a uniform magnetic field in the deflection space are established in theory and the mathematical expressions for the turn density distribution of the deflection coils defined by these equations are also derived .

在三峡永久船闸开挖中，采用了预留保护层、深孔梯段爆破技术等控制爆破方案。深孔梯段爆破时，在保护层内边缘布置预裂孔与缓冲孔。

The important problems such as the scheme of the controlled blasting , deep-hole bench blasting , smooth blasting with lateral protecting layer and the excavation of the horizontally protecting layer of rock foundation of the permanent lock of Three Gorges Project are discussed in this paper .

发现M蛋白分布于整个M线，而C成分虽然也集中于M线以内，但主要分布于M线内的边缘区域。

The M-protein is well distributed in the whole M-line , but the component C is localized mainly at the margin within the M-line .

头足类幼体分布于磷虾类和端足类的高丰度区（10～25ind·m-3）内或边缘水域。

The distribution of Cephalopoda larva is also in or near the high abundance area of Euphausiacea and Amphipoda .

YG8硬质合金喷嘴在水淬试验中的失效形式主要是局部块状脱落，集中分布在端面的内孔边缘和外圆柱面边缘。

The form of major damage of carbide nozzle is massive fall off , concentrated in the inner edge of the hole and the edge of the outer cylindrical surface after water quenching test .

20%～95%的复发体积位于首次治疗95%等剂量曲线内为边缘复发；

As marginal , when 20 % to 95 % of recurrent tumor volume was within the 95 % isodose ;