2 line carplate number recognition using vision assistant software

I am doing FYP(Final Year Project). I am using national instruments vision assistant 2010 and want to recognize car plate number.
I already try out single line car plate number ready. Now my probelm is cannot recognize 2-line car plate number. I also still trying auto detect the car palte number and recognize the car palte number. I don't want to manuals select the car plate number. please find out for me solutions.
I also attach the file (2-line car plate number photo) also.
Thanks alots
Attachments:
01112011247.jpg ‏1806 KB

Hello,
using simple calibration model, you realize that you disregard the lens distortion? It is also advisable that the camera is perpendicular to the inspected object. Here, a telecentric lens helps too.
The simple calibration performs direct conversion from pixels to real-world units. For example, if you know a real world object that you measure is 10 mm in size and it occupies 10 pixels on the image, then the conversion factor is 10mm/10pix = 1mm/pix.
So, you want to measure an object with size U (in pixels), you use the equation:
X = 1mm/pix * U (note that this is for horizontal direction, vertical direction is analogous)
Best regards,
K
https://decibel.ni.com/content/blogs/kl3m3n
"Kudos: Users may give one another Kudos on the forums for posts that they found particularly helpful or insightful."

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Attachments:
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2 line carplate number recognition using vision assistant software

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