The Study of Skewed Vehicle Plate Recognition System Applying Image Registration Techniques
碩士 === 國立臺北科技大學 === 電機工程系所 === 99 === The purpose of this study was to apply feature-pointed image registration on skewness correction of vehicle plate and improve identification of template matching. Minimum enclosing area rectangle algorithm suggests a similarity measure for registering two images...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2011
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| Online Access: | http://ndltd.ncl.edu.tw/handle/u48np9 |
| Summary: | 碩士 === 國立臺北科技大學 === 電機工程系所 === 99 === The purpose of this study was to apply feature-pointed image registration on skewness correction of vehicle plate and improve identification of template matching. Minimum enclosing area rectangle algorithm suggests a similarity measure for registering two images by comparing vertex of quadrangle of skewed vehicle plate’s character image and feature points of vehicle plate. The feature points of skewed image are automatically detected to be the optimized control points. This technique solves the problem that the traditional skewed plate’s image identification only processes rigid transformation but neglects panned plate skewness.
Finally, street vehicle plate identification was performed to examine the proposed method. Results show that overall successful recognition rate by using diamond-shaped structuring element was 98.5%; under the condition of taking out characters completely, skewed plate has approximately 100% successfully recognized rate; and 95.86% success recognition rate of character identification is achieved.
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