I have images of stacks of books – can I detect the spines? Can I get the call numbers?
Combining Image and Text Features: A Hybrid Approach to Mobile Book Spine Recognition
(combine text recognition with comparing to known images of book spines)
Automatic Book Spine Extraction and Recognition for Library Inventory Management
Discussion on the OPENCV forum
Matching book-spine images for library shelf-reading process automation
Mobile augmented reality for books on a shelf
Viewpoint-independent book spine segmentation
Identifying books in library using line segment detector and contour clustering
A review of Augmented Reality and its application in context aware library system