Title :
Motion deblurring for optical character recognition
Author :
Qi, Xing Yu ; Zhang, Li ; Tan, Chew Lim
Author_Institution :
Sch. of Comput., Nat. Univ. of Singapore, Singapore
fDate :
29 Aug.-1 Sept. 2005
Abstract :
This paper investigates the problem of blurring caused by motion during image capture of text documents. Motion blurring prevents proper optical character recognition of the document text contents. One area of such applications is to deblur name card images obtained from handheld cameras. In this paper, a complete motion deblurring procedure for document images has been proposed. The method handles both uniform linear motion blur and uniform acceleration motion blur. Experiments on synthetic and real-life blurred images prove the feasibility and reliability of this algorithm provided that the motion is not too irregular. The restoration procedure consumes only small amount of computation time.
Keywords :
document image processing; image motion analysis; image restoration; optical character recognition; text analysis; handheld camera; image capture; motion deblurring; name card image; optical character recognition; text document; uniform acceleration motion blur; uniform linear motion blur; Acceleration; Additive noise; Cameras; Cepstral analysis; Character recognition; Image motion analysis; Image restoration; Motion estimation; Optical character recognition software; Optical filters;
Conference_Titel :
Document Analysis and Recognition, 2005. Proceedings. Eighth International Conference on
Print_ISBN :
0-7695-2420-6
DOI :
10.1109/ICDAR.2005.162