کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
528846 869613 2016 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Automatic license plate detection in hazardous condition
ترجمه فارسی عنوان
تشخیص پلاک اتوماتیک در شرایط خطرناک
کلمات کلیدی
تشخیص پلاک اتوماتیک، شرایط خطرناک، رگه های باران، مه به صورت افقی کج شده تصویر کنتراست کم تبدیل فوریه، تبدیل رادون
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
چکیده انگلیسی


• License plate detection in hazardous condition.
• Five novel contributions.
• Compared with few existing approaches.
• Experimented using two image databases.

Automatic detection of license plate (LP) is to localize a license plate region from an image without human involvement. So far a number of methods have been introduced for automatic license plate detection (ALPD), but most of them do not consider various hazardous image conditions that exist in many real driving situations. Hazardous image condition means an image can have rainy or foggy weather effects, low contrast environments, objects similar to LP in the background, and horizontally tilted LP area. All these issues create challenges in developing effective ALPD method. In this paper, we propose a new ALPD method which effectively detects LP area from an image in the hazardous conditions. For rain removal we apply a novel method that uses frequency domain mask to filter rain streaks from an image. A new contrast enhancement method with a statistical binarization approach is introduced in the proposed ALPD for handling low contrast indoor, night, blurry and foggy images. For correcting tilted LP, we apply Radon transform based tilt correction method for the first time. To filter non-LP regions, a new condition is used which is based on image entropy. We test the proposed ALPD method on 850 car images having different hazardous conditions, and achieve satisfactory results in LP detection.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Visual Communication and Image Representation - Volume 36, April 2016, Pages 172–186
نویسندگان
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