Automated Card Authentication

[Rhotchkiss]

VCP has a large database of pictures.

Also, most auction houses should have solid scans. Search under prior auctions.

Then once you get the cards on your screen, screen shot them

[x2drich2000]

Maybe I missed something in one of the other threads, but after reading through the linked document is seems the markers used are unique to the set chosen. Are you going to have to come up with a different set of markers for each set? If so, how are you planning to accomplish this on sets where there is not a huge number of samples to draw from?

[kevinlenane]

It's a good question - my plan here is to start narrow and then expand - the rarer the set the more scant the data for sure. It's something that we'd have to expand set by set starting with the cross section of popularity and value.

I will post a Dropbox link if anyone does want to post picture. I really appreciate all the above advice - I'll try to see if the images on VCP and the existing grading companies are large enough to warrant a web scrape...

[tonyo]

I have high res scans of my former 33 goudey near set on google docs. I can give you access to view and download. But, the scans include multiple cards per scan. Do you need it to be one card per scan/photo ?

[perezfan]

Heritage has extremely high resolution scans as well. They've sold thousands of Goudeys in all grades over the years.

[Case12]

Are you using AI?

[kevinlenane]

Ill take a look at those scans - my email is kevinlenane@gmail.com for Google Docs access. Thank you for the offers - high res scans could work but the best thing is just close up pictures taken on a smart phone and uploaded to the below Google Drive link. There is an example in that google drive folder of the front and back of the cad:

https://drive.google.com/drive/u/0/f...GxCM13GRpy13B_

To explain a bit more on the image size preference - the general idea is to get the software working such that a general consumer can authenticate a card on their own smartphone device. So to create the best machine vision pipeline - the training data should be around that same resolution (which is sufficient for these purposes) Obviously id like to get my hands on some bulk imagery shot on a smart-phone but i will gladly dig through scans that could be similar size and use them as well if thats more what people have here. Alternatively if a site like VCP stores cards at a similar resolution to smart phone pictures the I would run a web scrape and grab a ton of images en masse - so thanks again for all the suggestions.

If someone out there happens to be sitting on a huge pile of raw Goudeys I would be willing to compensate someone for their time taking pictures of them. Obviously im trying to be somewhat economical in the POC stage given the but the real limiter right now is training data. I may need to come up with some creative ways to get this imagery if web scraping doesnt work - maybe compensating photos with actual cards or some other motivational exercise