Invention Grant
US08971588B2 Apparatus and method for contactless high resolution handprint capture
有权
用于非接触式高分辨率手印捕获的装置和方法
- Patent Title: Apparatus and method for contactless high resolution handprint capture
- Patent Title (中): 用于非接触式高分辨率手印捕获的装置和方法
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Application No.: US13075694Application Date: 2011-03-30
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Publication No.: US08971588B2Publication Date: 2015-03-03
- Inventor: Gil Abramovich , Kevin George Harding , Joseph Czechowski, III , Frederick Wilson Wheeler
- Applicant: Gil Abramovich , Kevin George Harding , Joseph Czechowski, III , Frederick Wilson Wheeler
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Ziolkowski Patent Solutions Group, SC
- Agent Jean K. Testa
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G02B5/30

Abstract:
A system and method for contactless handprint capture is disclosed that includes an image capture device to capture whole handprint images of a subject hand at each of a plurality of different focal distances, with the image capture device including an imaging camera and an electro-optics arrangement having a plurality of light modulating elements and polarization sensitive optical elements having differing optical path lengths based on polarization states. A control system is coupled to the image capture device to cause the device to capture the handprint images at each of the different focal distances, with each handprint image having a depth-of-focus that overlaps with a depth-of-focus of handprint images at adjacent focal distances such that redundant handprint image data is captured. The control system registers each handprint image with positional data and creates a composite handprint image from the handprint images captured at the different focal distances.
Public/Granted literature
- US20120250947A1 APPARATUS AND METHOD FOR CONTACTLESS HIGH RESOLUTION HANDPRINT CAPTURE Public/Granted day:2012-10-04
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