Patent US6370263B1 successfully refreshed from Google Patents.
US6370263B1
Expired / Lapsed
US
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Method and device for registering and collating palm imprints
Assignee: NEC Corp
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Filing: 1999-01-14
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Granted: 2002-04-09
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Expires: 2019-01-14
Abstract
Abstract There is disclosed a method of registering palm imprints of individuals to be identified to authenticate the individuals. Each palm imprint is divided into parts having regions with predetermined positions and sizes. Feature points are extracted from the parts of the imprint. The obtained feature information is registered as information for identity of individuals.
Inventors
- 👤 Seiichi Hiratsuka
- 👤 Teruhito Amanai
- 👤 Yoshifumi Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:39
CPC Classifications
G; G06; G06V; G06V40/00; G06V40/10; G06V40/12; G06V40/1347; G06T; G06T7/00; G06T7/10; G06T7/11
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
99 words
A method of registering a palm imprint of an individual to be identified to authenticate the individual, said method comprising the steps of: dividing said palm imprint into plural image parts having regions having predetermined positions and sizes; extracting feature points from said image parts; and registering said feature points as information for identification of the individual, wherein said step of dividing said palm imprint into said plural image parts is done using division lines that are established with respect to fingers of said palm imprint and positions of a heart line and a lifeline of the palm imprint.
Claim 2
Independent Claim
99 words
A method of registering a palm imprint of an individual to be identified to authenticate the individual, said method comprising the steps of: dividing said palm imprint into plural image parts having regions having predetermined positions and sizes; extracting feature points from said image parts; and registering said feature points as information for identification of the individual, wherein said step of dividing said palm imprint into said plural image parts is done using division lines that are established with respect to fingers of said palm imprint and positions of a heart line and a lifeline of the palm imprint.
Claim 3
Dependent Claim
103 words
A method of collating a palm imprint, comprising the steps of: registering palm imprints by the method of claim 1 such that each palm imprint is divided into plural image parts and that feature points derived from the image parts are registered; obtaining a palm imprint from an individual as an input palm imprint; dividing said input palm imprint into said parts; extracting feature points from at least one of said image parts of said input palm imprint; comparing said extracted feature points with the previously registered feature points; and authenticating said individual if there is a match between the feature points compared.
Claim 4
Dependent Claim
59 words
A method of collating a palm imprint as set forth in claim 2 , wherein said step of dividing said input palm imprint into said plural image parts is done using division lines that are established with respect to fingers of said input palm imprint and positions of a heart line and a lifeline of the input palm imprint.
Claim 5
Dependent Claim
150 words
A method of collating a palm imprint as set forth in claim 2 , wherein said plural image parts of said palm imprint includes at least a four-finger base portion close to the bases of the four finger of said individual, a thumb mount close to the base of the thumb, and a little finger mount occupying a remaining region, and wherein said step of dividing said palm imprint is done using a mount division line and a base division line, said mount division line connecting a midpoint between a middle finger and a third finger with a first intersection at which the lifeline on the wrist side meets a straight line on the wrist side, said base division line extending from a second intersection perpendicularly to said mount division line, said second intersection being a point at which the heart line meets a side surface under the little finger.
Claim 6
Dependent Claim
53 words
A method of collating a palm imprint as set forth in claim 4 , wherein said information to identify the individual includes second feature points derived from various portions of the palm imprint when the palm imprint is not divided, in addition to feature points of the separate parts of the palm imprint.
Claim 7
Dependent Claim
63 words
A method of collating a palm imprint as set forth in claim 4 , wherein said information to identify the individual includes second feature points derived from various portions of the palm imprint when the palm imprint is not divided and features points of a side surface of the palm, in addition to feature points of the separate parts of the palm imprint.
Claim 8
Dependent Claim
150 words
A method of registering a palm imprint as set forth in claim 1 , wherein said plural image parts of said palm imprint includes at least a four-finger base portion close to the bases of the four fingers of said individual, a thumb mount close to the base of the thumb, and a little finger mount occupying a remaining region, and wherein said step of dividing said palm imprint is done using a mount division line and a base division line, said mount division line connecting a midpoint between a middle finger and a third finger with a first intersection at which the lifeline on the wrist side meets a straight line on the wrist side, said base division line extending from a second intersection perpendicularly to said mount division line, said second intersection being a point at which the heart line meets a side surface under the little finger.
Claim 9
Dependent Claim
53 words
A method of registering a palm imprint as set forth in claim 7 , wherein said information to identify the individual includes second feature points derived from various portions of the palm imprint when the palm imprint is not divided, in addition to feature points of the separate parts of the palm imprint.
Claim 10
Dependent Claim
63 words
A method of registering a palm imprint as set fourth in claim 7 , wherein said information to identify the individual includes second feature points derived from various portions of the palm imprint when the palm imprint is not divided and features points of a side surface of the palm, in addition to feature points of the separate parts of the palm imprint.
Claim 11
Independent Claim
152 words
A device for registering a palm imprint of an individual to be identified to authenticate the individual, said device comprising: a first image display unit for displaying said palm imprint as image information; a first partial division unit for dividing said palm imprint into plural parts having regions represented by predetermined positions and sizes; a first feature extraction unit for extracting feature points of said parts of said palm imprint; and registration data memory unit for storing part information about said parts of said palm imprint, feature information about said feature points, and personal identity information for identity of individuals in a correlated manner, said personal identity information being entered separately, wherein said partial division unit divides said palm imprint into said plural parts according to division lines that are established with respect to fingers of said palm imprint and positions of a heart line and a lifeline of the palm imprint.
Claim 12
Independent Claim
152 words
A device for registering a palm imprint of an individual to be identified to authenticate the individual, said device comprising: a first image display unit for displaying said palm imprint as image information; a first partial division unit for dividing said palm imprint into plural parts having regions represented by predetermined positions and sizes; a first feature extraction unit for extracting feature points of said parts of said palm imprint; and registration data memory unit for storing part information about said parts of said palm imprint, feature information about said feature points, and personal identity information for identity of individuals in a correlated manner, said personal identity information being entered separately, wherein said partial division unit divides said palm imprint into said plural parts according to division lines that are established with respect to fingers of said palm imprint and positions of a heart line and a lifeline of the palm imprint.
Claim 13
Dependent Claim
30 words
A device for registering a palm imprint as set forth in claim 10 , wherein said first image display unit displays the whole palm imprint formed by impressing a palm.
Claim 14
Dependent Claim
48 words
A device for registering a palm imprint as set forth in claim 10 , wherein said data memory unit has a communications means and searches for various kinds of information stored therein and sends out the searched information through a communications bus according to requests from external devices.
Claim 15
Dependent Claim
147 words
A collating device for comparing an input palm print left behind with palm prints registered by the registration device of claim 10 to authenticate individuals, said collating device comprising: a second image display unit for displaying said input palm print left behind as image information; a collating data memory unit for storing the feature information in said registration data memory unit intact; a second partial division unit for dividing the input palm print left behind into plural parts having regions represented by predetermined positions and sizes; a second feature extraction unit for extracting information about feature points of said parts of the palm print; and information collating unit for comparing the feature information about said parts of the input palm print with the feature information stored in said collating data memory unit and producing information for identification of the individual if there is a match between them.
Claim 16
Dependent Claim
62 words
An integrated registration/collating device, wherein the registration device and the collating device of claim 13 are combined into a unit, and wherein said registration device and said collating device have said image display unit, said partial division unit, said feature extraction unit, and said data memory unit in common such that said registration device and said collating device share the same functions.
Claim 17
Dependent Claim
44 words
The integrated registration/collating device of claim 14 , wherein said input palm print is divided according to division lines that are established with respect to fingers of said input palm imprint and positions of a heart line and lifeline of the input palm imprint.
Claim 18
Dependent Claim
144 words
The integrated registration/collating device of claim 15 , wherein said plural regions of said palm print include at least a four-finger base portion close to the bases of the four fingers of said individual, a thumb mount close to the base of the thumb, and a little finger mount occupying a remaining region, and wherein said step of dividing said palm imprint is done using a mount division line and a base division line, said mount division line connecting a midpoint between a middle finger and a third finger with a first intersection at which the lifeline on the wrist side meets a straight line on the wrist side, said base portion division line extending from a second intersection perpendicularly to said mount division line, said second intersection being a point at which the heart line meets a side surface under the little finger.
Claim 19
Dependent Claim
144 words
The integrated registration/collating device of claim 14 , wherein said plural regions of said palm print include at least a four-finger base portion close to the bases of the four fingers of said individual, a thumb mount close to the base of the thumb, and a little finger mount occupying a remaining region, and wherein said step of dividing said palm imprint is done using a mount division line and a base division line, said mount division line connecting a midpoint between a middle finger and a third finger with a first intersection at which the lifeline on the wrist side meets a straight line on the wrist side, said base portion division line extending from a second intersection perpendicularly to said mount division line, said second intersection being a point at which the heart line meets a side surface under the little finger.
Claim 20
Dependent Claim
47 words
The integrated registration/collating device of claim 17 , wherein said information to identify the individual includes second feature points derived from various portions of the palm imprint when the palm imprint is not divided, in addition to feature points of the separate parts of the palm imprint.
Claim 21
Dependent Claim
57 words
The integrated registration/collating device of claim 17 , wherein said information to identify the individual includes second feature points derived from various portions of the palm imprint when the palm imprint is not divided and feature points of a side surface of the palm, in addition to feature points of the separate parts of the palm imprint.
Claim 22
Dependent Claim
137 words
A collating device for comparing an input palm print left behind with palm prints registered by the registration device of claim 10 to authenticate individuals, said collating device comprising: a second image display unit for displaying said input palm print left behind as image information on a viewing screen; a second partial division unit for dividing the input palm print left behind into plural parts having regions represented by predetermined positions and sizes; a second feature extraction unit for extracting information about feature points of said parts of the palm print; and information collating unit for comparing the feature information about said parts of the palm print with the feature information about said palm print stored in said registration data memory unit and producing information for identity of the individual if there is a match between them.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-04-08 | 2005-10-08 | 2006-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-04-08 | 2009-10-08 | 2010-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-04-08 | 2013-10-08 | 2014-04-09 | $7700.00 | Window Closed / Lapsed |