TY - GEN
T1 - Automatic business card scanning with a camera
AU - Hua, Gang
AU - Liu, Zicheng
AU - Zhang, Zhengyou
AU - Wu, Ying
PY - 2006
Y1 - 2006
N2 - 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.
AB - 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.
KW - Image enhancement
KW - Image region analysis
KW - Multimedia computing
UR - http://www.scopus.com/inward/record.url?scp=78649819206&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78649819206&partnerID=8YFLogxK
U2 - 10.1109/ICIP.2006.312471
DO - 10.1109/ICIP.2006.312471
M3 - Conference contribution
AN - SCOPUS:78649819206
SN - 1424404819
SN - 9781424404810
T3 - Proceedings - International Conference on Image Processing, ICIP
SP - 373
EP - 376
BT - 2006 IEEE International Conference on Image Processing, ICIP 2006 - Proceedings
T2 - 2006 IEEE International Conference on Image Processing, ICIP 2006
Y2 - 8 October 2006 through 11 October 2006
ER -