TY - GEN
T1 - Topological graph matching based dot pattern recognition scheme for smart book
AU - Shim, Jae Youn
AU - Kim, Seong Whan
PY - 2011
Y1 - 2011
N2 - In this paper, we present a design and implementation of smart book system using pen based augmented reality approach. Student has been given a smart pen and a smart study book, which is a usual printed material with CMY inks for contents and K ink for perceptually invisible dot patterns. When a student touches a smart study books with our smart pen, we show his/her multimedia (visual/audio) information which is exactly related with the selected region. Smart pen includes (1) IR LED/IR pass filter for illumination independent extraction of the dot patterns, and (2) camera for image captures. From the image sequences, we perform topological graph analysis which determines the topological distance between dot pixels, and perform error correction decoding using four position symbols and five CRC symbols. Our scheme can embed 16 bit information, which is more than 200% larger than previous scheme, which supports 7 bits or 8 bits information at most.
AB - In this paper, we present a design and implementation of smart book system using pen based augmented reality approach. Student has been given a smart pen and a smart study book, which is a usual printed material with CMY inks for contents and K ink for perceptually invisible dot patterns. When a student touches a smart study books with our smart pen, we show his/her multimedia (visual/audio) information which is exactly related with the selected region. Smart pen includes (1) IR LED/IR pass filter for illumination independent extraction of the dot patterns, and (2) camera for image captures. From the image sequences, we perform topological graph analysis which determines the topological distance between dot pixels, and perform error correction decoding using four position symbols and five CRC symbols. Our scheme can embed 16 bit information, which is more than 200% larger than previous scheme, which supports 7 bits or 8 bits information at most.
KW - information search
KW - pattern recognition
KW - pen computing
KW - smart book
UR - http://www.scopus.com/inward/record.url?scp=80054078759&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-24082-9_73
DO - 10.1007/978-3-642-24082-9_73
M3 - Conference contribution
AN - SCOPUS:80054078759
SN - 9783642240812
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 598
EP - 605
BT - Convergence and Hybrid Information Technology - 5th International Conference, ICHIT 2011, Proceedings
T2 - 5th International Conference on Convergence and Hybrid Information Technology, ICHIT 2011
Y2 - 22 September 2011 through 24 September 2011
ER -