Wavelet Transform Based License Plate Detection for Cluttered Scene
學年 93
學期 1
出版（發表）日期 2005-01-01
作品名稱 Wavelet Transform Based License Plate Detection for Cluttered Scene
作品名稱（其他語言）
著者 Hsieh, Ching-tang; Juan, Yu-shan
單位 淡江大學電機工程學系
出版者 World Scientific and Engineering Academy and Society (WSEAS)
著錄名稱、卷期、頁數 WSEAS Transactions on Computers 4(1), pp.30-33
摘要 This paper presents a wavelet transform based method for extracting license plates from cluttered images. The proposed system consists of three major stages. First, a wavelet transform based method is used for extracting important contrast features as guides to search for desired license plates. Then, finding a reference line in HL subimage plays an important role to locate the desired license plate region roughly. According to the reference line we can decrease the searching region of license plate and speed up the execution time. The last stage of the method is to locate the license plate accurately by license plate adjustment. More importantly, the proposed detection method can locate multiple plates with different orientations in one image. Since the feature extracted is robust to complex backgrounds, the proposed method works well in extracting differently illuminated and oriented license plates. The average accuracy of detection is 92.4%.
關鍵字 -Wavelets transform, license plate detection, candidate region verification; character segmentation; k-mean
語言 en
ISSN 1109-2750
期刊性質 國外
收錄於
產學合作
通訊作者
審稿制度
國別 GRC
公開徵稿
出版型式 紙本
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