By Yingzi (Eliza) Du
This booklet introduces readers to the elemental recommendations, classical ways, and the latest layout, improvement, and functions of biometrics. It additionally presents a glimpse of destiny designs and learn instructions in biometrics. furthermore, it discusses a few most modern issues and matters during this sector. compatible for a variety of readers, the ebook explains expert phrases in simple English. a few techniques and designs mentioned are so new that advertisement platforms in line with them would possibly not arrive out there within the subsequent 10 to twenty years.
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Additional resources for Biometrics : from fiction to practice
However, one signiﬁcant weakness of these methods is the lack of capability of translating human knowledge into computational rules that can be utilized to distinguish diﬀerent faces and non-faces. Yang and Huang  presented a hierarchical knowledge-based method to detect faces. This system has three levels of rules. The top level observes that possible face candidates are found by sliding a window over the input image and applying a set of rules at each location. At level 2, local histogram equalization was performed on the face candidates.
4 Feature Extraction An important feature that establishes the uniqueness of a ﬁngerprint is its minutiae comprising ridge endings and bifurcations as shown in Fig. 1. Most automated ﬁngerprint recognition systems are based on minutiae matching. Therefore, extracting the minutiae is required prior to matching. A common approach to achieve this is to binarize the enhanced ﬁngerprint image into black and white using thresholding means. Subsequently, thinning algorithm  is applied to convert the ridge width into one pixel-wide skeleton.
1997) Fast algorithm for point pattern-matching: Invariant to translations, rotations and scale changes, Pattern Recognition 30(2), 311–320. 6. Chikkerur, S. S. and Cartwright, A. , Govindaraju, V. (2005) Fingerprint image enhancement using STFT Analysis, International Workshop on Pattern Recognition for Crime Prevention, Security and Surveillance 20– 29. 7. Criminal Justice Information Services (1999) Electronic Fingerprint Transmission Speciﬁcation Report, CJIS-RS-0010, vol. 7 (US). 8. Feng, J.
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