It's not easy to correlate character cards and find patterns to scan. The current misjudgment rate is very high. More identifiable features need to be provided to allow AI to grasp the key. Also, PNG and JPG with transparent coat (alpha channel) are a common problem when uploading to the "vuforia" object manager. A more efficient way to uniformly normalize images is needed. Currently, the way to modify each image is simple. Less efficient, perhaps there is a way to automate the job or batch.

The idea of using a single-letter symbol failed like a single card, and the idea had to be changed because the letters had so few recognizable features that the program was hard to recognize.

The idea of using QR codes instead of picture cards or letter cards was tested and proven to work, but it didn't appeal to the target audience (kids), so started designing stronger picture cards.





Unfortunately, the card patterns that I spent a lot of time hand-drawing are not very good at camera recognition. The scores range from 1 ~ 4. If I have the opportunity to continue to improve this game in the future, I will add animal silhouettes to the background. Some elements of the living environment are used as a supplement to the scan, such as the background of the fish will have some wave ripples and the like, I hope this will help the scan recognition.