ICIP 2006, Atlanta, GA

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Paper Detail

Session:Image Representation, Rendering, Display, and Assesment
Time:Monday, October 9, 09:40 - 12:20
Presentation: Poster
Topic: Image Scanning, Display and Printing: Other
Authors: Gang Hua; Northwestern University 
 Zicheng Liu; Microsoft Research, Redmond 
 Zhengyou Zhang; Microsoft Research, Redmond 
 Ying Wu; Northwestern University 
Abstract: In this paper, we present a system to automatically extract, rectify and enhance business card images. First the business card image patch is automatically segmented by minimizing a novel local-global variational energy. Second a quadrangle is fitted to the segmented image patch. With the four corner points of the quadrangle, we then estimate the physical aspect ratio of the business card and obtain a homography to rectify the quadrangle back to rectangular shape. We finally enhance the contrast of the rectified business card image using a S-shaped curve. Extensive experiments demonstrated the efficacy and robustness of our system.