video camera as bar code reader

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My project proposal is about a Bar code reader using video camera that can read at a great distance.But,I know a little about this. My questions are: How can I read bar code in a distance using video camera? What bar code(specific) to deal and a what type of decoding will I use to make work simpler(if ever there is simpler)?
I really appreciate your kindness and thank you very much for reading this.
save me T_T

Posted 30-Aug-11 5:28am

harikreshna

Updated 3-Aug-16 23:50pm

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3 solutions

Solution 3

My problem like your problem. Hence if you have resolved please help me!
My require is " using camera of tablet PC to read barcode"
Thanks you so much!

Posted 3-Aug-16 23:50pm

Member 10861662

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Bert Mitton · Accepted Answer · 2011-08-30T05:55:00

First, if you're going to be reading barcodes at a great distance, your camera will need pretty high resolution.

The easiest way is going to be to take the snapshot, identify the barcode within the image, rotate it so it's horizontal (assuming a 1D barcode like a UPC), and then read it.

Which kind of barcode depends on your usage. As an example, everything you buy at the store has UPCs, but if you're looking to have other information in the barcode (such as a serialized carton #), you'll want to use something like a UCC (GS-1) barcode.

This should get you started, as your question is kinda vague as to the actual usage of the barcodes. Let me know if there's anything else you have questions with.

Simon Bang Terkildsen · Accepted Answer · 2011-08-30T05:58:00

Solution 2

Remember video is just a series of still images, so your question is how you get barcodes from an image. I would suggest you read these three articles
Read Barcodes from an Image[^]
Reading Barcodes from an Image - II[^]
Reading Barcodes from an Image - III[^]

Posted 30-Aug-11 5:58am

Simon Bang Terkildsen