An Implementation of Document Image Reconstruction System on a Smart Device Using a 1D Histogram Calibration Algorithm

Lifeng Zhang, Qian Fan, Yujie Li, Yousuke Uchimura, Seiichi Serikawa
2014 Mathematical Problems in Engineering  
In recent years, the smart devices equipped with imaging functions are widely spreading for consumer application. It is very convenient for people to record information using these devices. For example, people can photo one page of a book in a library or they can capture an interesting piece of news on the bulletin board when walking on the street. But sometimes, one shot full area image cannot give a sufficient resolution for OCR soft or for human visual recognition. Therefore, people would
more » ... re, people would prefer to take several partial character images of a readable size and then stitch them together in an efficient way. In this study, we propose a print document acquisition method using a device with a video camera. A one-dimensional histogram based self-calibration algorithm is developed for calibration. Because the calculation cost is low, it can be installed on a smartphone. The simulation result shows that the calibration and stitching are well performed.
doi:10.1155/2014/313452 fatcat:zrvgxulbljg7bicjkntmgnkytm