Image analysis – Applications – Personnel identification
Patent
1994-08-22
1997-07-01
Razavi, Michael T.
Image analysis
Applications
Personnel identification
358435, 382244, G06K 900
Patent
active
056446454
ABSTRACT:
A fingerprint image transmission system includes a remote computer system and a central computer system. In the remote computer system, a gray image of a fingerprint image sampled by an image scanner portion (10) is compressed by a non-reversible (lossy) coding by a non-reversible coding mechanism (202) and a skeleton pattern generated by a skeleton generating mechanism (201) by inputting the gray image, is compressed by a reversible (lossless) coding by a reversible coding mechanism (203). The compressed gray image and the compressed skeleton pattern are transmitted to the central computer system through a transmission mechanism (31). In the central computer system, a receiver mechanism (41) receives the gray image and the skeleton pattern transmitted from the remote computer system. A skeleton editing portion (60) performs correction of the skeleton pattern decompressed by a skeleton decompressing mechanism (502) with reference to the gray image decompressed by a gray image decompressing mechanism (501), and extracts feature points in the skeleton pattern to record in a database (80).
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NEC Corporation
Patel Jayanti K.
Razavi Michael T.
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