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Normalization-Cooperated Gradient Feature Extraction for Handwritten Character Recognition
August 2007 (vol. 29 no. 8)
pp. 1465-1469
| ASCII Text | x | ||
| Cheng-Lin Liu, "Normalization-Cooperated Gradient Feature Extraction for Handwritten Character Recognition," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 29, no. 8, pp. 1465-1469, August, 2007. | |||
| BibTex | x | ||
| @article{ 10.1109/TPAMI.2007.1090, author = {Cheng-Lin Liu}, title = {Normalization-Cooperated Gradient Feature Extraction for Handwritten Character Recognition}, journal ={IEEE Transactions on Pattern Analysis and Machine Intelligence}, volume = {29}, number = {8}, issn = {0162-8828}, year = {2007}, pages = {1465-1469}, doi = {http://doi.ieeecomputersociety.org/10.1109/TPAMI.2007.1090}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, } | |||
| RefWorks Procite/RefMan/Endnote | x | ||
| TY - JOUR JO - IEEE Transactions on Pattern Analysis and Machine Intelligence TI - Normalization-Cooperated Gradient Feature Extraction for Handwritten Character Recognition IS - 8 SN - 0162-8828 SP1465 EP1469 EPD - 1465-1469 A1 - Cheng-Lin Liu, PY - 2007 KW - Character recognition KW - feature extraction KW - normalization-cooperated gradient feature (NCGF). VL - 29 JA - IEEE Transactions on Pattern Analysis and Machine Intelligence ER - | |||
The gradient direction histogram feature has shown superior performance in character recognition. To alleviate the effect of stroke direction distortion caused by shape normalization and provide higher recognition accuracies, we propose a new feature extraction approach, called normalization-cooperated gradient feature (NCGF) extraction, which maps the gradient direction elements of original image to direction planes without generating the normalized image and can be combined with various normalization methods. Experiments on handwritten Japanese and Chinese character databases show that, compared to normalization-based gradient feature, the NCGF reduces the recognition error rate by factors ranging from 8.63 percent to 14.97 percent with high confidence of significance when combined with pseudo-two-dimensional normalization.
Index Terms:
Character recognition, feature extraction, normalization-cooperated gradient feature (NCGF).
Citation:
Cheng-Lin Liu, "Normalization-Cooperated Gradient Feature Extraction for Handwritten Character Recognition," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 29, no. 8, pp. 1465-1469, Aug. 2007, doi:10.1109/TPAMI.2007.1090
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