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Your search keyword '"Park, Kil Houm"' showing total 150 results
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150 results on '"Park, Kil Houm"'

23. Directional filter bank-based fingerprint feature extraction and matching

Author

Park, Chul-Hyun, Lee, Joon-Jae, Smith, Mark J.T., Park, Sang-il, and Park, Kil-Houm

Subjects
Business, Computers, Electronics, Electronics and electrical industries
Abstract

This paper presents a new filter bank-based fingerprint feature extraction and matching method without needing to detect minutiae. The proposed method decomposes a fingerprint image into eight directional subband outputs using a directional filter bank (DFB) and then obtains directional energy distributions for each block from the decomposed subband outputs. Only dominant directional energy components are employed as elements of the input feature vector, which serves to reduce noise and improve efficiency. For the rotational alignment, additional input feature vectors in which various rotations are considered are extracted, and these input feature vectors are compared with the enrolled template feature vector. The proposed method significantly reduced the memory cost and processing time associated with verification, primarily because of the efficient DFB structure and the exploitation of directional specific information. Experimental results validate the effectiveness of the proposed method in extracting fingerprint features and achieving good performance. Index Terms--Biometrics, directional energy, directional filter bank (DFB), feature extraction, fingerprints, matching, verification.

Published
2004

26. Defect detection based on periodic cell pattern elimination in TFT-LCD cell images

Author

Park Kil-Houm, Yeong-Tak Jung, and Lee Seung Min

Subjects
Materials science, Liquid-crystal display, business.industry, Cell, law.invention, Adaptive filter, symbols.namesake, medicine.anatomical_structure, Fourier transform, Thin-film transistor, law, medicine, symbols, Optoelectronics, business, Periodic cell
Published
2017

36. Development of a digital FPLL ASIC for GA HDTV receivers

Author

Han, Dong-Seog, Lee, Myeong-Hwan, and Park, Kil-Houm

Subjects
Radio receivers -- Equipment and supplies, Digital loop carriers -- Design and construction, High-definition television -- Design and construction, Application-specific integrated circuits -- Product development, Digital-to-analog converters -- Design and construction, Business, Electronics and electrical industries, Engineering and manufacturing industries
Published
1997

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