Mr. Makoto Furuie Profile

Makoto Furuie

at National Printing Bureau of Japan

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Proceedings Article | 18 March 2008 Paper

Individuality evaluation for paper based artifact-metrics using transmitted light image

Manabu Yamakoshi, Junichi Tanaka, Makoto Furuie, Masashi Hirabayashi, Tsutomu Matsumoto

Proceedings Volume 6819, 68190H (2008) https://doi.org/10.1117/12.765035

KEYWORDS: Image transmission, Image segmentation, Image resolution, Statistical analysis, Biometrics, Error analysis, Resistance, Manufacturing, Scanners, Magnetism

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Artifact-metrics is an automated method of authenticating artifacts based on a measurable intrinsic characteristic. Intrinsic characters, such as microscopic random-patterns made during the manufacturing process, are very difficult to copy. A transmitted light image of the distribution can be used for artifact-metrics, since the fiber distribution of paper is random. Little is known about the individuality of the transmitted light image although it is an important requirement for intrinsic characteristic artifact-metrics. Measuring individuality requires that the intrinsic characteristic of each artifact significantly differs, so having sufficient individuality can make an artifact-metric system highly resistant to brute force attack. Here we investigate the influence of paper category, matching size of sample, and image-resolution on the individuality of a transmitted light image of paper through a matching test using those images. More concretely, we evaluate FMR/FNMR curves by calculating similarity scores with matches using correlation coefficients between pairs of scanner input images, and the individuality of paper by way of estimated EER with probabilistic measure through a matching method based on line segments, which can localize the influence of rotation gaps of a sample in the case of large matching size. As a result, we found that the transmitted light image of paper has a sufficient individuality.

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