Machine Vision/Computer Vision Card App

[Aquarian Sports Cards]

Trust me I'm behind you 100%!

[Buythatcard]

I think that this would be an excellent project.

Do you think it would be able to detect whether a card is fake or altered while it is still sitting in the slab? We can then determine which grading companies have been doing a good job.

[Bigdaddy]

Excellent! News I've been hoping to hear.

Do you think this would be just a 2D scan of the front and back? I would think if you could also look at the edges and surface of the card (in a three dimensional way), that would provide additional information.

There may not be one single marker that points to either 'altered' or 'fake', but taking in several bits of information can point you in that direction.

For example if a card has been flattened and then trimmed, I could imagine that you could look at the edges under high magnification and see the results of that recent cut and also look at the surface and see that it has been flattened.

Good luck and may the force be with you - I watched The Last Jedi again tonight and have tix for Rise of Skywalker tomorrow.

Careful though - PSA might buy you out and then bury the technology.

[GasHouseGang]

I've been hoping someone would step up and create something like this. I figured we just needed someone with the right equipment and expertise to come forward and make it happen. I'm certainly behind you 100 percent.

[drcy]

Focus on authentication, skip grading.

[Mark17]

Originally Posted by drcy

Focus on authentication, skip grading.

Totally agree. It's the grading aspect that's at the root of the entire problem. Determining authentic/counterfeit and original/altered is all you should focus on. Once the grading aspect is included, the nefarious games will begin again (people looking for a way to obtain higher grades by fooling your machine.)

[kevinlenane]

Honestly authentication is likely much much easier anyway - it's always easier to start w a narrower problem and i am certain I can nail Goudeys and a ton of other pre-war given their characteristics. Generally I think it could be done w some kind of standardized image capture - potentially from a phone for mass usage but I'll probably start w a high res scan format as an input. Cut lines show up pretty well in 2d but a profile image could work too. In general you want an image input thats easy for everyone to produce..

I'll See what I can get going in the Jan/Feb and I'll post it here when it's ready though I will for sure need training images at some point...

[Bigdaddy]

Originally Posted by Mark17

Totally agree. It's the grading aspect that's at the root of the entire problem. Determining authentic/counterfeit and original/altered is all you should focus on. Once the grading aspect is included, the nefarious games will begin again (people looking for a way to obtain higher grades by fooling your machine.)

Agree, focus only on verifying authenticity of the card and whether or not it has been altered. Alteration can be a bit more nuanced though as it could include things like trimming, soaking, erasures, wax/stain removal, recoloring, addition/subrtaction of material, etc.

I would leave the grading, a totally subjective measure, to the eye of the beholder. Sort of like beauty.

[T206Collector]

Originally Posted by drcy

Focus on authentication, skip grading.

+1

#this

[hcv123]

I don't have much, but I have about 20-30 1933 Goudey cards - at least one or two of which I question if they have been trimmed. What type of images do you need?