该算法适用于不同的字符大小、字符倾斜、污损等情况，抗噪声能力强。
It is proved that this algorithm can be used to recognize varisized characters with high tolerance to distortion and blur, and its character recognition accuracy is above 94%.
整个识别过程包括字符定位、图像增强、字符倾斜校正、单个字符分割、归一化处理和特征选择与提取。
The aim of image pre-processing and feature extracting is to get feature vectors from tire-code characters.
通过车牌定位、车牌倾斜校正、字符切分和字符识别四个步骤完成了汽车牌照的识别，介绍了每一步骤的关键技术和实验结果。
License plate recognition includes four steps, that is, license plate orientation, license plate lean revise, character segmentation and character recognition. It introduces the above four steps.
为解决车牌图像倾斜对字符分割与识别带来的不利影响，提出一种基于字符投影的车牌图像错切校正方法。
A method to remedy the negative effect arising from slant vehicle license plate's character segmentation and recognition based on character projection is presented.
为解决机动车牌图像倾斜将对其字符分割与识别带来不利的影响，提出一种基于主元分析(PCA)的车牌图像倾斜校正新方法。
The authors present a new method to remedy the negative effect arising from slant vehicle license plates character segmentation and recognition based on principal component analysis (PCA).
与现有的其他方法相比，在定位单个字符、倾斜甚至竖直的文字行方面有更好的鲁棒性。
Compared with other methods nowadays, it's robust in locating single characters, skewed and even vertical text lines.
其一是图像预处理方法不当，在字符切分、大小归一化、倾斜校正以及签名图像的细线化时会丢失签名特征。
The first one is improper image pre-processing, such as segmentation, normalization and thinning, which lose the features of letters relationship and strokes.
整个处理过程分为图像预处理、牌照的倾斜校正、字符分割和字符识别四部分。
The entire treating processes divide into the image pretreatment, the license plate correction for grade, the character division and the character recognition four parts.
本文提出了一种对畸变字符图像快速变形校正的算法，它主要是通过对字符主方向的搜索来求取倾斜图像的有关参数。
The paper presents an algorithm for skew remedy based on searching the main direction to acquire the parameters of the skew image.
提出了一种基于文本图元识别以跟踪字符中心线的高精度矫正ocr图像倾斜的快速算法，该算法思想虽然简单，却具有高效和高精度的特点，同时还具有高可靠性和良好的抗噪特征。
This paper proposes a rapid algorithm to OCR image slant correction, which applies the graphic primitive recognition technique and then keeps track of the character center-line.
相关技术有：车牌定位，字符定位，车牌倾斜纠正，字符识别等。
Related technologies: vehicle positioning, character positioning plates tilt corrected, such as character recognition.
这种分割方法对只在水平方向倾斜的字符，即使不经过倾斜矫正，也能达到较好的字符分割效果。
For tilted characters only in horizontal direction, even without tilt correction, this method can achieve better segmentation.
最后则接收使用者输入的按键，而在屏幕上显示此按键对应于倾斜方向的字符。
Finally, a press key input by the user is received, while a character of the press key corresponding to the inclined direction is displayed on the screen.
在字符图像预处理方面，重点研究了灰度图像滤波算法、图像的倾斜检测和字符分割算法；
The research of the character image pre-processing focuses on the gray-scale image filtering algorithm, the skew detection of image and character segmentation algorithm;
在字符图像预处理方面，重点研究了灰度图像滤波算法、图像的倾斜检测和字符分割算法；
The research of the character image pre-processing focuses on the gray-scale image filtering algorithm, the skew detection of image and character segmentation algorithm;
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