TY - GEN
T1 - Cooperative text and line-art extraction from a topographic map
AU - Li, Luyang
AU - Nagy, George
AU - Samal, Ashok
AU - Seth, Sharad
AU - Xu, Yihong
N1 - Funding Information:
Acknowledgment. This work was supported by a grant from the National Imagery and Mapping Agency as a part of the Intelligent Map Understanding Project. Support was also provided by the Central Research Laboratory, Hitachi, Inc., the Center for Communication and Information Science of the University of Nebraska – Lincoln, and the New York State Center for Automation Technologies (CAT) at Rensselaer Polytechnic Institute.
Publisher Copyright:
© 1999 IEEE.
PY - 1999
Y1 - 1999
N2 - The black layer is digitized from a USGS topographic map digitized at 1000 dpi. The connected components of this layer are analyzed and separated into line art, text, and icons in two passes. The paired street casings are converted to polylines by vectorization and associated with street labels from the character recognition phase. The accuracy of character recognition is shown to improve by taking account of the frequently occurring overlap of line art with street labels. The experiments show that complete vectorization of the black line-layer bitmap is the major remaining problem.
AB - The black layer is digitized from a USGS topographic map digitized at 1000 dpi. The connected components of this layer are analyzed and separated into line art, text, and icons in two passes. The paired street casings are converted to polylines by vectorization and associated with street labels from the character recognition phase. The accuracy of character recognition is shown to improve by taking account of the frequently occurring overlap of line art with street labels. The experiments show that complete vectorization of the black line-layer bitmap is the major remaining problem.
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U2 - 10.1109/ICDAR.1999.791826
DO - 10.1109/ICDAR.1999.791826
M3 - Conference contribution
AN - SCOPUS:34047217931
T3 - Proceedings of the International Conference on Document Analysis and Recognition, ICDAR
SP - 471
EP - 474
BT - Proceedings of the 5th International Conference on Document Analysis and Recognition, ICDAR 1999
PB - IEEE Computer Society
T2 - 5th International Conference on Document Analysis and Recognition, ICDAR 1999
Y2 - 20 September 1999 through 22 September 1999
ER -