查询词典 optical character reader

The rotary connection can be carried out in free space and hi-direction transmission of optical signal can be performed. Through analyzing the design principle of the optical structure and optical path calculation, it is found that when the ratio between the focal lengths for two lens is 20~50 and off-axis distance is in the range of 4~10mm, the interference will not be occurred between two optical channels and signal transmission can be lasted.

在自由空间可以实现旋转连接并实现光信号的双向传输，通过分析该光学结构设计原理和光路计算，发现每组透镜中两个透镜焦距之比为20-50，离轴距离为4-10mm范围时，才能保证光通道之间不发生干扰且信号持续传输。

The main content includes as the follows:(1) An automatic neighbor discovery mechanism applicable to SDH network is proposed;(2) For the optical network with Optical Transfer Unit in WDM, a General Multi-protocol Label Switch-based automatic neighbor discovery mechanism is proposed and simulated;(3) Three automatic neighbor discovery mechanisms for the all-optical network with OEO module are proposed and comparatively simulated;(4) With the Loss of Light detecting, a novel automatic neighbor discovery mechanism in all-optical network without any OEO module is proposed.

主要工作包括：（1）提出了SDH网络的自动邻居发现机制；（2）提出了带波长转换器的光网络的自动邻居发现方案，并通过仿真对发现过程进行了跟踪和统计；（3）提出了三种带有光电转发模块的光网络的自动邻居发现策略，并做了仿真比较；（4）提出通过光丢失检测方式对不带OTU的光网络进行自动邻居发现的实现方法。

Optical fiber communication is transferring form point-to-point transmission to mesh network. Traditional optical-electronical-optical transformation limits the data rate and adds the cost. With reconfigurable optical add/drop multiplexer for signal switching and routing, the OEO transformation can be bypassed, reduceing equipment size and cost.

光纤通信由点到点传输向网格化发展，传统的光—电—光转换过程限制了通信速率并导致成本增加，采用可重构光分叉复用器进行光交换和光路由，可以省去光—电—光转换过程，缩小尺寸和降低成本。

An electronic component of an optical character reader that alters the signal from the scanner to receive a processed rendition of the input character that is more appropriate for detailed or more advanced analysis.

一种光符阅读装置的电子部件，该部件修正扫描器的输出信号，以得到一种经过处理的、更适合作进一步分析的输入字符的再现。

POS can mean "sale", is a kind of with barcode or Optical character recognition terminal light character reader, have cash or barter quota cashier function.

POS的中文意思是"销售点"，是一种配有条码或OCR码（Optical character recognition 光字符码）终端阅读器，有现金或易货额度出纳功能。

In a graphic-character, character meaning is the basis of graphic form, and graphic makes the character more living and individual, so a graphic character is much better than an ordinary character in the aspect of descriptive function.

在英文图形文字中，文字是图形意义确立的支持因素，图形化的特点则让文字的意义不再枯燥，而是变得生动、直观、明朗，从而超越了普通文字的叙述功能。

Researching the segmentation algorithm of character. At first emendate the license plate, then utilize the quality of character, such as width of character and space between character, to segment the character. The method is simple and applied, and the result of segmentation is good.

先对车牌进行校正，再利用车牌字符的先验知识，根据字符的宽度和间距等进行字符的分割，实验表明这种方法简单、实用，获得较好的分割结果。

In the layout analysis, we chose a bottom-up algorithm based on nearest neighbor connect-strength and line confidence to segment the image area, table area and text area; In the printed Chinese character recognition module, we calculate the degree of incorporative difference to match the character, also define a refusal class which could orientate the mathematical expression automatically; Put the expression into the formula processing module, then we chose the character segmentation method based on connectivity and the template match method to recognize the character in the mathematical expression and at last we used the structure analysis based on the character to transform the two dimension formula into one dimension Word EQ expression.

在版面分析中，采用基于最近邻连接强度和行列可信度的自底向上的版面分析算法，分割出图像区域、表格区域和文本区域；在汉字识别模块中，采用回溯切分方法切分出字符段，计算合并差异度与特征字典比较，通过引入汉字的拒识类，从而实现了公式的定位；将定位后的数学公式送入公式识别器，在公式识别器中采用基于连通域搜索的字符分割方法和模板匹配方法对字符识别，对于识别出的字符，再采用基于特征字符的结构分析方法，从而将二维的数学公式转化为一维的Word EO域语句。

Seven experiments were conducted in the present study to test and verify two inferences:(1) In character decision performance, high frequency character have not character stroke and component number effect, but low frequency character is an essential condition to stroke and component number effect;(2) In prime condition, when SOA is very short (SOA=56ms), component character can prime the recognition of low frequency compound characters, but failure to prime the high frequency compound characters.

在此基础上，本文通过7个行为实验验证了这一假设的两个重要推论：(1)在字决定任务中，高频汉字不存在部件数和笔画数效应，而低频字不必然存在笔画数和部件数效应；(2)在启动条件下，当SOA较短（=56毫秒）时，成分字仅对低频合体字有启动效应，而对高频合体字没有启动效应。

Strokes of a Chinese character is a fundamental Chinese character structure unit , the common 8 kinds fundamental strokes of a Chinese character , in the light of certain pen fall in with a Chinese character importing a Chinese character.

笔划是汉字的基本构造单位，汉字共有8种基本笔划，按照一定的笔顺输入汉字。

This immediately brings us to the next part of this article: creating an output "replace function".

下面进入文章的第二部分：建立一个"缓存处理函数"。

He was elected as an International Ornithological Committee member in 2002 during the 24th IOC held in Beijing.

现为中国鸟类学会理事和WPA 专家组成员。2002年被推选为国际鸟类委员会委员。