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POWhat are good algorithms for vehicle license plate detection?
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  1. POWhat are good algorithms for vehicle license plate detection?
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    copied!<h3>Background</h3> <p>For my final project at university, I'm developing a vehicle license plate detection application. I consider myself an intermediate programmer, however my mathematics knowledge lacks anything above secondary school, which makes producing the right formulas harder than it probably should be.</p> <p>I've spend a good amount of time looking up academic papers such as:</p> <ul> <li><a href="http://www.scribd.com/doc/266575/Detecting-Vehicle-License-Plates-in-Images" rel="noreferrer">Detecting Vehicle License Plates in Images</a> </li> <li><a href="http://www.cic.unb.br/~mylene/PI_2010_2/ICIP10/pdfs/0003945.pdf" rel="noreferrer">Robust License Plate Detection using Image Saliency</a> </li> <li><a href="http://www.eurasip.org/Proceedings/Eusipco/Eusipco2007/Papers/d3l-b05.pdf" rel="noreferrer">Local Enhancement of Car Image for License Plate Detection</a> </li> </ul> <p>When it comes to the math, I'm lost. Due to this testing various graphic images proved productive, for example:</p> <p><img src="https://i.stack.imgur.com/xPxvv.jpg" alt="alt text"></p> <p>to</p> <p><img src="https://i.stack.imgur.com/y71r9.jpg" alt="alt text"></p> <p>However this approach only worked to that particular image, and if the techniques were applied to different images, I'm sure a poorer conversion would occur. I've read about a formula called the "bottom hat morphology transform", which does the following:</p> <blockquote> <p>Basically, the trans- formation keeps all the dark details of the picture, and eliminates everything else (including bigger dark regions and light regions).</p> </blockquote> <p>I can't find much information on this, however the image within the documentation near the end of the report shows its effectiveness. </p> <h3>Other constraints</h3> <ul> <li>Developing in C# </li> <li>Confining the project to UK registration plates only </li> <li>I can choose the images to convert as a demonstration </li> </ul> <h1>Question</h1> <p>I need advice on what transformation techniques I should focus on developing, and what algorithms can help me. </p> <p>EDIT: New information present on <a href="https://stackoverflow.com/questions/4727119/continued-vehicle-license-plate-detection">Continued - Vehicle License Plate Detection</a></p>
 

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