A fast approach to detect and correct skew documents

Huei Fen Jiang, Chin Chuan Han, Kuo Chin Fan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations


In this paper, a fast approach is proposed to detect and correct the skew documents. In this proposed approach, a coarse skew angle /spl theta//sub e/ is first estimated to decrease the heavily computational burden. Next, the exact skew angle /spl theta/ located in the previously estimated range [/spl theta//sub e/-3, /spl theta//sub e/+3] is then determined by making use of the Hough transform method. In addition to the skew angle detection. The skew image is quickly corrected by decomposing the traditional geometric rotation into a translation and a local rotation process. A mapping table which stores the local rotation information is employed to avoid the large floating-point operations and speed up the rotation process on general-purpose computers. Experimental results are conducted to verify the feasibility and efficiency of our proposed method.

Original languageEnglish
Title of host publicationTrack C
Subtitle of host publicationApplications and Robotic Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Print)081867282X, 9780818672828
StatePublished - 1996
Event13th International Conference on Pattern Recognition, ICPR 1996 - Vienna, Austria
Duration: 25 Aug 199629 Aug 1996

Publication series

NameProceedings - International Conference on Pattern Recognition
ISSN (Print)1051-4651


Conference13th International Conference on Pattern Recognition, ICPR 1996


  • Hough
  • detection
  • skew
  • skew correctton
  • transform


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