Is there any way in unity for number recognition? - unity3d

I am trying to create a AR app which recognizes numbers.I was able to do the text recognition using vuforia but numbers I didn't find any such SDK.I am also ready to write the code using c# but I am not sure where to start.

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How to implement a CMSampleBuffer for MLkit facial detection?

Basically, I'm trying to create a simple real-time facial recognition IOS app that streams the users face and tells them whether their eyes are closed. I'm following the google tutorial here - https://firebase.google.com/docs/ml-kit/ios/detect-faces.
I'm on step 2 (Run the Face Detector) and I'm trying to create a visionImage using the CMSampleBufferRef. I'm basically just copying the code and when I do, there is no reference to "sampleBuffer" as shown in the tutorial. I don't know what to do as I really don't understand the CMSampleBuffer stuff.
ML Kit has a Quickstart app showing how to do that. Here is the code:
https://github.com/firebase/quickstart-ios/tree/master/mlvision

Unity Custom Voice Recognition

I'm am working on a Unity app that needs custom voice recognition. By custom I mean I cant have them be English or any known language. I want to teach the engine basically new words like gibberish words I made up and I need the voice recognition to recognize them, any ideas? Also I need it to work on both iOS/Android.
Thank you in advance.
Check
https://github.com/cmusphinx/pocketsphinx-unity-demo
also the main cmusphinx website
http://cmusphinx.github.io

Reading a QR code and deploying an application using Unity and Hololens

I'm beginner with HoloLens and Unity engine. Last days, I've found an application that can be read QR codes. In there can be encoded information like URLs, images, mp3 audio, etc. At the same time, I was wondering if it is possible through reading QR code launching different kind of applications using unity engine. For example, if I read one QR code executing this game with the HoloLens, with another QR code another game. I did not study game engineer or informatics, therefore I don't if it is possible to implement it.
Probably you can, but you need to specify your requeriments very carefully.
First of all QR Code reading is actually an image processing. For image processing you need 2 object: An "Digital image" and a "processor". (In your case Hololens Camera and Hololens processor)
Basicly when you open an application in your holo lens which has qr reading capabilities, It just uses hololens's camera for "digital image" and then with the algorithm in the application it just convert to qr code to a data.(for exmple url or a general path to an application on the hololens etc.)
After that,Applicaiton uses that data to for opening new applications or use it in own scope. It depends on the privilages of application in the Hololens Operating system.
If I were you,I will not use unity for the qr code reading. If I will use unity, ı will not make diffrent apps for diffrerent games so after read qr code ı just open diffrent part of the same application.

Augmented Reality : Recognize hand written number?

I am trying to find a solution for this AR app as the topic tells.
I want my app to recognize a hand-written number by the user.
The app will tell the user to write down for example number 24 on a paper and move the camera over the written number to see the 3d object.
This might be used for saving a Birthday, a wedding date .. etc
For accuracy, the app instructions will show the user a preview to tell please write the number 24 similar to this..
Although each hand writing will differ, but at least we do not get curly "2"-s or "4" with an open edge ..etc
So here we need AR to recognize the number, or be able to read the number according to approximation.
And the first question is: Is such a behavior doable or anyone familiar with a similar concept?
After searching similar apps, I found "Ink Hunter" apps for tatoo preview-s, although these apps use symbols not number, but we can think of a number as a symbol as well.
Also as this video: https://www.youtube.com/watch?v=9rXJcIE2Fcs shows, each user draws the symbol in a different way and still they get it working.
I am using Unity3d and Vuforia.
Vuforia offers free samples(unity3d packages) on the website, and there is one named "Text Recognition" , and here's the tutorial link: https://www.youtube.com/watch?v=W3MK6nC5FWE
But unfortunately couldn't make it work.
If someone has developed such a functionality using these sample projects from vuforia or have any ulternative method please I need you help :)
thanks in advance moghes
Here's a tutorial our team created on text recognition using the Hololens and Vuforia with Unity: https://www.youtube.com/watch?v=WdMeHgD4fMY. In the first portion of the video, we show how to get text recognition working with just Vuforia and Unity - no Hololens required. For your application, just change the text to numbers.
I believe the biggest challenge you will have is the "hand-written" component. From our research, Vuforia prefers computer-generated, predefined font types.

iphone camera used in app to scan (like red laser)

I am working on an app that requires the use of a camera to scan in text. Basically without getting too detailed, I need to point the camera at something (for my purposes here I will say a license plate) and i need to point the camera at the plate, and have it somehow save the digits into a string within the app. i guess its similar to Word Lens or red laser where it doesnt actually take a picture, it just scans the view and returns information. i have not been able to find much about this so any help on how to write this kind of code would be greatly appreciated!!
This is not barcode scanning. This is called OCR (optical character recognition), and there are some free and opensource libraries available that do this.
For example, Tesseract is a complete OCR engine written in C++ (it has a C++ interface, so it can be easily used from within an iOS app).
The other solution is gocr, the GNU Optical Character Recognizer. This is supposed to be a standalone program (a command line tool), but I've had success extracting its essential parts into a library (and I used it in an iOS project of mine as well).
OpenCV is a complete computer vision library. You can implement OCR using it - just google for the adequate documentation and tutorials.