Hi there,
I worked on a BIB recognition project a couple of years ago, and you should be aware there are several problems that make it just about impossible to achieve 100% accuracy. What can be done is to have a review process that allows you to manually review images and edit them where necessary. This can make the whole process pretty fast.
Varying BIB design is one issue, if they are all identical it is much simpler, but as we know, if you are covering multiple events the BIB design varies considerably. The best results are achieved by tuning the recognition software for each BIB design/event.
If timing is an issue, or your project is price sensitive, then I can't help you as I am pretty busy at the moment. This is also the reason that I have not provided any demos. I do have one somewhere from the previous project, and can dig that out if you are interested.
Otherwise, please take a look at my profile here on Freelancer. If you like what you see, let's discuss the requirement further.
rgds
jo.