Hi, just tried to reproduce this with Unity 4.3 and Vuforia 2.8.7 (i.e. the latest), using the TextReco sample and adding the word "emilio" (and a few other words) in the Addtional Words in the Inspector panel of the TextRecognition prefab.
The app was able to detect "emilio" (all lower-case letters), as well as "EMILIO" (all capital letters);
I did print the word Emilio using 3 different fonts (to see if it could make any difference):
- Times New Roman
- Courrier New
In all cases the app was able to easily detect the word "emilio" as well as "EMILIO".
Things to check:
- try changing the Font of your printed words, to see if it makes any difference (maybe you are using some special font which is not very common ?); keep in mind that the Vuforia text recognition engine can recognize text printed/rendered in most commonly occurring serif andsans serif fonts.
- try to change the size of your printed words, or keeping the device closer to the printed words
- check that your Region of Interest window is not too large (as this may affect performance; for instance, avoid a ROI region that matches the whole screen size)