System for contactless recognition of hand and finger lines.

    公开(公告)号:HK1038812A1

    公开(公告)日:2002-03-28

    申请号:HK02100309

    申请日:2002-01-15

    Abstract: A process for reproducing hand and/or finger lines with a camera works without skin contact with the recording device. By using linearly or circularly polarized light in the paths of the illuminating and the reproducing light rays, it is possible to obtain separate representations of the patterns of the epidermis and the hypodermis. An image of the relief of the skin that is rich in contrast is obtained in this way, and it is possible to acquire information from the deeper disposed layers of the skin already supplied with blood. An algorithm searches the skin patterns of the palm of the hand for line elements of different strengths and directions (vectors). The computed numerical identification contains overall frequencies of vectors as well as amplitudes and phases of frequency components of projections of the vector image of both patterns. The process permits placing the person to be identified in a separate location from the measuring device, thereby offering complete protection of the system and enhanced security against fraud.

    System for contactless recognition of hand and finger lines.

    公开(公告)号:OA11624A

    公开(公告)日:2004-09-10

    申请号:OA1200000285

    申请日:1999-04-21

    Abstract: A process for reproducing hand and/or finger lines with a camera works without skin contact with the recording device. By using linearly or circularly polarized light in the paths of the illuminating and the reproducing light rays, it is possible to obtain separate representations of the patterns of the epidermis and the hypodermis. An image of the relief of the skin that is rich in contrast is obtained in this way, and it is possible to acquire information from the deeper disposed layers of the skin already supplied with blood. An algorithm searches the skin patterns of the palm of the hand for line elements of different strengths and directions (vectors). The computed numerical identification contains overall frequencies of vectors as well as amplitudes and phases of frequency components of projections of the vector image of both patterns. The process permits placing the person to be identified in a separate location from the measuring device, thereby offering complete protection of the system and enhanced security against fraud.

    System for contactless recognition of hand and finger lines

    公开(公告)号:AU749894B2

    公开(公告)日:2002-07-04

    申请号:AU4497499

    申请日:1999-04-21

    Abstract: A process for reproducing hand and/or finger lines with a camera works without skin contact with the recording device. By using linearly or circularly polarized light in the paths of the illuminating and the reproducing light rays, it is possible to obtain separate representations of the patterns of the epidermis and the hypodermis. An image of the relief of the skin that is rich in contrast is obtained in this way, and it is possible to acquire information from the deeper disposed layers of the skin already supplied with blood. An algorithm searches the skin patterns of the palm of the hand for line elements of different strengths and directions (vectors). The computed numerical identification contains overall frequencies of vectors as well as amplitudes and phases of frequency components of projections of the vector image of both patterns. The process permits placing the person to be identified in a separate location from the measuring device, thereby offering complete protection of the system and enhanced security against fraud.

    4.
    发明专利
    未知

    公开(公告)号:AT212138T

    公开(公告)日:2002-02-15

    申请号:AT99927701

    申请日:1999-04-21

    Abstract: A process for reproducing hand and/or finger lines with a camera works without skin contact with the recording device. By using linearly or circularly polarized light in the paths of the illuminating and the reproducing light rays, it is possible to obtain separate representations of the patterns of the epidermis and the hypodermis. An image of the relief of the skin that is rich in contrast is obtained in this way, and it is possible to acquire information from the deeper disposed layers of the skin already supplied with blood. An algorithm searches the skin patterns of the palm of the hand for line elements of different strengths and directions (vectors). The computed numerical identification contains overall frequencies of vectors as well as amplitudes and phases of frequency components of projections of the vector image of both patterns. The process permits placing the person to be identified in a separate location from the measuring device, thereby offering complete protection of the system and enhanced security against fraud.

    System for contactless recognition of hand and finger lines using a pair of lights and single polarisation filter

    公开(公告)号:NZ507342A

    公开(公告)日:2002-08-28

    申请号:NZ50734299

    申请日:1999-04-21

    Abstract: A process for reproducing hand and/or finger lines with a camera works without skin contact with the recording device. By using linearly or circularly polarized light in the paths of the illuminating and the reproducing light rays, it is possible to obtain separate representations of the patterns of the epidermis and the hypodermis. An image of the relief of the skin that is rich in contrast is obtained in this way, and it is possible to acquire information from the deeper disposed layers of the skin already supplied with blood. An algorithm searches the skin patterns of the palm of the hand for line elements of different strengths and directions (vectors). The computed numerical identification contains overall frequencies of vectors as well as amplitudes and phases of frequency components of projections of the vector image of both patterns. The process permits placing the person to be identified in a separate location from the measuring device, thereby offering complete protection of the system and enhanced security against fraud.

    6.
    发明专利
    未知

    公开(公告)号:DK1073988T3

    公开(公告)日:2002-04-29

    申请号:DK99927701

    申请日:1999-04-21

    Abstract: A process for reproducing hand and/or finger lines with a camera works without skin contact with the recording device. By using linearly or circularly polarized light in the paths of the illuminating and the reproducing light rays, it is possible to obtain separate representations of the patterns of the epidermis and the hypodermis. An image of the relief of the skin that is rich in contrast is obtained in this way, and it is possible to acquire information from the deeper disposed layers of the skin already supplied with blood. An algorithm searches the skin patterns of the palm of the hand for line elements of different strengths and directions (vectors). The computed numerical identification contains overall frequencies of vectors as well as amplitudes and phases of frequency components of projections of the vector image of both patterns. The process permits placing the person to be identified in a separate location from the measuring device, thereby offering complete protection of the system and enhanced security against fraud.

    7.
    发明专利
    未知

    公开(公告)号:DE59900642D1

    公开(公告)日:2002-02-21

    申请号:DE59900642

    申请日:1999-04-21

    Abstract: A process for reproducing hand and/or finger lines with a camera works without skin contact with the recording device. By using linearly or circularly polarized light in the paths of the illuminating and the reproducing light rays, it is possible to obtain separate representations of the patterns of the epidermis and the hypodermis. An image of the relief of the skin that is rich in contrast is obtained in this way, and it is possible to acquire information from the deeper disposed layers of the skin already supplied with blood. An algorithm searches the skin patterns of the palm of the hand for line elements of different strengths and directions (vectors). The computed numerical identification contains overall frequencies of vectors as well as amplitudes and phases of frequency components of projections of the vector image of both patterns. The process permits placing the person to be identified in a separate location from the measuring device, thereby offering complete protection of the system and enhanced security against fraud.

    System for contactless recognition of hand and finger lines.

    公开(公告)号:ZA200005432B

    公开(公告)日:2001-05-18

    申请号:ZA200005432

    申请日:2000-10-05

    Abstract: A process for reproducing hand and/or finger lines with a camera works without skin contact with the recording device. By using linearly or circularly polarized light in the paths of the illuminating and the reproducing light rays, it is possible to obtain separate representations of the patterns of the epidermis and the hypodermis. An image of the relief of the skin that is rich in contrast is obtained in this way, and it is possible to acquire information from the deeper disposed layers of the skin already supplied with blood. An algorithm searches the skin patterns of the palm of the hand for line elements of different strengths and directions (vectors). The computed numerical identification contains overall frequencies of vectors as well as amplitudes and phases of frequency components of projections of the vector image of both patterns. The process permits placing the person to be identified in a separate location from the measuring device, thereby offering complete protection of the system and enhanced security against fraud.

    10.
    发明专利
    未知

    公开(公告)号:ES2172334T3

    公开(公告)日:2002-09-16

    申请号:ES99927701

    申请日:1999-04-21

    Abstract: A process for reproducing hand and/or finger lines with a camera works without skin contact with the recording device. By using linearly or circularly polarized light in the paths of the illuminating and the reproducing light rays, it is possible to obtain separate representations of the patterns of the epidermis and the hypodermis. An image of the relief of the skin that is rich in contrast is obtained in this way, and it is possible to acquire information from the deeper disposed layers of the skin already supplied with blood. An algorithm searches the skin patterns of the palm of the hand for line elements of different strengths and directions (vectors). The computed numerical identification contains overall frequencies of vectors as well as amplitudes and phases of frequency components of projections of the vector image of both patterns. The process permits placing the person to be identified in a separate location from the measuring device, thereby offering complete protection of the system and enhanced security against fraud.

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