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WO2001077997A1 - Procede de formation d'images des dessins papillaires des doigts - Google Patents

Procede de formation d'images des dessins papillaires des doigts Download PDF

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Publication number
WO2001077997A1
WO2001077997A1 PCT/RU2000/000263 RU0000263W WO0177997A1 WO 2001077997 A1 WO2001077997 A1 WO 2001077997A1 RU 0000263 W RU0000263 W RU 0000263W WO 0177997 A1 WO0177997 A1 WO 0177997A1
Authority
WO
WIPO (PCT)
Prior art keywords
uzορa
πaπillyaρnοgο
image
izοbρazheniya
chτο
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/RU2000/000263
Other languages
English (en)
Russian (ru)
Inventor
Pavel Anatolievich Zaitsev
Vladimir Nikolaevich Bichigov
Alexandr Vladimirovich Moksin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2001077997A1 publication Critical patent/WO2001077997A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/1335—Combining adjacent partial images (e.g. slices) to create a composite input or reference pattern; Tracking a sweeping finger movement

Definitions

  • the invention is not affected by the computing technology, in particular, by the presence of visual devices and the detection of objects
  • Fingerprinted finger print P ⁇ i e ⁇ m s ⁇ s ⁇ be ⁇ edusm ⁇ en ⁇ ⁇ l ⁇ ⁇ edelenie zave ⁇ sheniya ⁇ egis ⁇ atsii ⁇ i ⁇ su ⁇ s ⁇ vii ⁇ be ⁇ a on ⁇ inimayuschey ⁇ ve ⁇ n ⁇ s ⁇ i or ⁇ sle zadann ⁇ g ⁇ ⁇ e ⁇ i ⁇ da v ⁇ emeni, ⁇ dna ⁇ 5 ⁇ luchi ⁇ che ⁇ e nesmazann ⁇ e iz ⁇ b ⁇ azhenie m ⁇ zhn ⁇ ⁇ l ⁇ ⁇ m in case ⁇ gda ⁇ ma ⁇ izmy ( ⁇ inimayuschey ⁇ ve ⁇ n ⁇ s ⁇ i ⁇ a ⁇ i) ⁇ ln ⁇ s ⁇ yu s ⁇ ve ⁇ s ⁇ vue ⁇ ⁇ me ⁇ altsa, ch ⁇ on ⁇ a ⁇ i ⁇ e unreachable. Lubricants obtained cannot be fully readily computed
  • the fingerprint is displayed and the fingerprint image is formatted.
  • the first array of image data of the fingerprint is stored and transferred to the final array.
  • this second array which charac- terizes the current image of the finger in the second frame, it is removed.
  • This fragment is transferred to the first fragment and is treated with it.
  • the data are modified in the end mass.
  • the value of the finite array is replaced with the modified values, which only depend on the values in the finite array and the second array. Values that are charac- teristic of the newly appearing image are simply transferred to a finite array.
  • the steps for saving the current image and modifying the end product are repeated for all the subsequent steps and - 5 -
  • the described method is overcome by the following disadvantages. Failure, the problem of compensating the grease from the fingerprint is not resolved. A complex deformed non-cylindrical form of nalya leads to the fact that the finger is slippery, which leads to a decrease in the incidence of a significant decrease in the out- come of the dog. An inferior image in each aspect of the format is acquired by a few different frames. Slipping a finger causes mutual displacement of images in different cad- ores and in washing out of the endless image, and in some cases causes neglect. Otherwise, the endgame in neighboring areas may not be contiguous, far away from the cadres. Such inventories may contain images that are significantly different in terms of details and parts, and there is no end to it. The low accuracy of tracking the volume of current images is determined by the fact that analysis - 6 ⁇
  • the present and the present method are all known - 7 -
  • Pairs of the neighboring cadres can choose the central and final cadres for the first and the last.
  • Offsets of a conventional unit in the area of the central center lines can be divided in points, while the unit is equipped with a unit for the unit.
  • An approximate amount of offset of the knot is that the maximum correlation of the line of the knob is small, if there is less than For ⁇ division ⁇ ation ⁇ - - 9 -
  • Pillar knobs are used to smooth out the resulting displacements in the junction knobs.
  • a predominantly complete offset for a different unit is obtained by adding up offsets from the center frame.
  • select the cadre with the most common part of the image go with the smallest offset of the image.
  • the right hand side is designed to protect the user and the personnel that are in use at the moment are using a free download.
  • the end of the fingerprint and the moment of finger swiping may be slower, for example, by increasing the risk of warning or noticing.
  • ⁇ 35ig. 2 shows an example of the combination of a central line according to the invention.
  • Fig. 3 Provides a part of the process for compensating for and after compensating for the lubricant according to the invention.
  • an array of CCDs is used, in which there are a number of elements for receiving a free shipment.
  • the finger is at a low speed, such as a quick, acute system, and there is an acute ... Let the size of the space in the system make up both the unit and the unit.
  • the LHZZZ represents the element of the image (the pixel of the invention), which is a sharpening current, which means that it is less than 25%, which means that
  • each frame of the frame is equal to the minimum value of the speed (equal to the minimum).
  • the size of the space ⁇ is chosen to be commensurate with the interlapillary disruption of the medium ⁇ -
  • This frame is conveniently considered to be the bosses and the fingerprint process is processed as it is in the center and the end frame.
  • ⁇ azhdyi elemen ⁇ ( ⁇ i ⁇ sel) ⁇ nechn ⁇ g ⁇ iz ⁇ b ⁇ azheniya be- ⁇ e ⁇ sya of ⁇ d ⁇ dyascheg ⁇ ⁇ ad ⁇ a without us ⁇ edneniya ⁇ se ⁇ ii ⁇ ad- ⁇ v, ⁇ a ⁇ ⁇ eddagae ⁇ sya in d ⁇ ugi ⁇ izves ⁇ ny ⁇ s ⁇ s ⁇ ba ⁇ , ⁇ e- ⁇ mu ⁇ nechn ⁇ e iz ⁇ b ⁇ azhenie imee ⁇ ma ⁇ simaln ⁇ v ⁇ zm ⁇ zhnye ⁇ n ⁇ as ⁇ and ⁇ azlichim ⁇ s ⁇ de ⁇ aley iz ⁇ b ⁇ azheniya.

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Materials For Photolithography (AREA)

Abstract

L'invention relève des procédés de représentation et de reconnaissance visuelles de caractéristiques biométriques telles que les empreintes digitales. L'invention consiste à faire glisser un doigt sur une surface acceptrice en formant un ensemble d'éléments de représentation numérique d'un dessin papillaire se présentant comme une séquence de poses, définir dans chaque pose un domaine d'image (une tache) qui correspond à l'adhérence optimale du doigt à la surface acceptrice et à former une image définitive du dessin papillaire des doigts. A l'intérieur de la séquence de poses on choisit une pose qui occupe une position centrale dans l'image entière, on sélectionne de façon séquentielle des paires de poses adjacentes pour lesquelles on détermine les lignes centrales passant par le centre de la partie commune de régions de l'image, on fait coïncider les lignes centrales ainsi obtenues des poses adjacentes, on analyse les décalages des dessins papillaires dans les alentours des lignes centrales et, lors de la formation de l'image définitive, on corrige chaque élément de l'image en tenant compte des décalages calculés des dessins capillaires. Grâce à cette technique, on compense entièrement dans l'image finale, d'une part, le flou de l'image provoqué par le glissement du doigt sur la surface réceptrice et, d'autre part, la déformation du dessin papillaire.
PCT/RU2000/000263 2000-04-10 2000-08-10 Procede de formation d'images des dessins papillaires des doigts Ceased WO2001077997A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2000108665 2000-04-10
RU2000108665 2000-04-10

Publications (1)

Publication Number Publication Date
WO2001077997A1 true WO2001077997A1 (fr) 2001-10-18

Family

ID=20232974

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2000/000263 Ceased WO2001077997A1 (fr) 2000-04-10 2000-08-10 Procede de formation d'images des dessins papillaires des doigts

Country Status (1)

Country Link
WO (1) WO2001077997A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992004689A1 (fr) * 1990-08-31 1992-03-19 Digital Biometrics, Inc. Procede et appareil de prise d'images d'empreintes de la peau
RU2051415C1 (ru) * 1993-10-22 1995-12-27 Владимир Николаевич Бичигов Способ формирования изображения папиллярного узора
RU2103738C1 (ru) * 1995-02-06 1998-01-27 Товарищество с ограниченной ответственностью "Информ Инжиниринг" Способ классификации ориентированных отпечатков пальцев
US5748766A (en) * 1996-04-30 1998-05-05 Identix Incorporated Method and device for reducing smear in a rolled fingerprint image

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992004689A1 (fr) * 1990-08-31 1992-03-19 Digital Biometrics, Inc. Procede et appareil de prise d'images d'empreintes de la peau
RU2051415C1 (ru) * 1993-10-22 1995-12-27 Владимир Николаевич Бичигов Способ формирования изображения папиллярного узора
RU2103738C1 (ru) * 1995-02-06 1998-01-27 Товарищество с ограниченной ответственностью "Информ Инжиниринг" Способ классификации ориентированных отпечатков пальцев
US5748766A (en) * 1996-04-30 1998-05-05 Identix Incorporated Method and device for reducing smear in a rolled fingerprint image

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