Automatic Business Card Scanning with a Camera

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.

• Type: Conference
• Year: 2006
• Where: ICIP
• Authors: Gang Hua, Zicheng Liu, Zhengyou Zhang, Ying Wu
• Keywords: Business Card Image, Business Card Images, Card Image Patch, ICIP 2006, Image Processing, Physical Aspect Ratio