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Recognition of Digits in Hydrographic Maps: Binary Versus Topographic Analysis
April 1997 (vol. 19 no. 4)
pp. 399-404

Abstract—This paper compares the performance of topographic analysis and binary analysis for recognition of digits in hydrographic maps. The performance of each method was measured by the correct classification rate of the final symbol recognition step when processing a complete hydrographic map of size 0.45 × 0.6 m2 with about 35,000 digits. The experimental results indicated that binary analysis had a better performance than topographic analysis. Overall, the performance of the binary analysis was acceptable.

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Index Terms:
Binary analysis, topographic analysis, deconvolution, locally adaptive binarization, symbol recognition, data capture.
Øivind Due Trier, Torfinn Taxt, Anil K. Jain, "Recognition of Digits in Hydrographic Maps: Binary Versus Topographic Analysis," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 19, no. 4, pp. 399-404, April 1997, doi:10.1109/34.588025
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