Geometric rectification for camera-captured document images
Haibo Liu · Journal of Computer Applications · 2007
The document images filmed by digital devices such as digital cameras are always coupled with distortions,which will result in a failure of the layout analysis,segmentation and recognition.In order to enable ordinary recognition software to recognize the digital document images,it is necessary to carry out their geometric rectification.A new identification technique was proposed to distinguish three types of image distortions and then the restoration of camera images was carried out respectively.Experimental results show that the proposed classification method and restoration techniques are effective.