| 啤酒瓶字符的圆周投影特征提取与识别 |
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| 引用本文： | 唐博,史仪凯,王萑,牛秦洲.啤酒瓶字符的圆周投影特征提取与识别[J].计算机工程与应用,2010,46(13):229-232. |
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| 作者姓名： | 唐博 史仪凯 王萑 牛秦洲 |
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| 作者单位： | 1.西北工业大学 机电学院，西安 710072 2.桂林工学院 电子与计算机系，广西 桂林 541004 |
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| 基金项目： | 广西区科技攻关项目(桂科攻No.0537020-3-1);;广西区研究生创新基金项目(No.2006105960811M11) |
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| 摘 要： | 针对已分割完成的啤酒瓶凸性字符，提出了一种基于圆周投影变换的图像特征提取方法。以质心为极点将笛卡尔坐标系变换为极坐标系，进行圆周投影计算，将二维的字符图像变换为一维投影。利用小波变换（WT）和离散余弦变换（DCT），提取不同字符的有效特征。通过相同、相似字符特征提取实验，表明该方法具有较好的抗噪声能力和分类性能。
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| 关 键 词： | 啤酒瓶字符 圆周投影 特征提取 字符识别 |
| 收稿时间： | 2008-10-29 |
| 修稿时间： | 2009-1-13
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Beer bottle characters extraction and recognition method based on circular projection |
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| TANG Bo,SHI Yi-kai,WANG Huan,NIU Qin-zhou.Beer bottle characters extraction and recognition method based on circular projection[J].Computer Engineering and Applications,2010,46(13):229-232. |
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| Authors: | TANG Bo SHI Yi-kai WANG Huan NIU Qin-zhou |
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| Affiliation: | 1.School of Mechanical and Electrical Engineering，Northwestern Polytechnical University，Xi’an 710072，China 2.Department of Electronic and Computer Science，Guilin Institute of Technology，Guilin，Guangxi 541004，China |
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| Abstract: | Completed for the partition of beer bottles convexity characters,an image feature extraction method is put forward based on circular projection.By mass center for the pole,it will transform Cartesian coordinates to a coordinate system.With circular projection calculating,two-dimensional images of characters will transform one-dimensional projection.By using Wavelet Transform(WT) and the Discrete Cosine Transform(DCT),the effective feature extractions of different characters are got.Through the same characte... |
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| Keywords: | beer bottle raised character circular projection feature extraction character recognition |
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