EP1938574A1 - Systeme de saisie et de memorisation numeriques de documents - Google Patents

Systeme de saisie et de memorisation numeriques de documents

Info

Publication number
EP1938574A1
EP1938574A1 EP06818022A EP06818022A EP1938574A1 EP 1938574 A1 EP1938574 A1 EP 1938574A1 EP 06818022 A EP06818022 A EP 06818022A EP 06818022 A EP06818022 A EP 06818022A EP 1938574 A1 EP1938574 A1 EP 1938574A1
Authority
EP
European Patent Office
Prior art keywords
support arm
positioning aid
digital camera
optical positioning
data processing
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.)
Withdrawn
Application number
EP06818022A
Other languages
German (de)
English (en)
Inventor
Joachim Bremm
Eric Rietzke
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.)
Silvercreations Software AG
Original Assignee
Silvercreations Software AG
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 Silvercreations Software AG filed Critical Silvercreations Software AG
Publication of EP1938574A1 publication Critical patent/EP1938574A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/195—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/0077—Types of the still picture apparatus
    • H04N2201/0081—Image reader
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/0452—Indicating the scanned area, e.g. by projecting light marks onto the medium

Definitions

  • the invention relates to a system for digital document capture and storage comprising a pedestal with a bracket pivotally engaging thereon and a digital camera having an image pick-up area which can be displayed by means of an optical positioning aid and connected to an electronic data processing device. Likewise, the use of an optical positioning aid is protected.
  • Such systems are used as so-called document management systems and are intended to ensure fully electronic filing and administration of correspondence. For this purpose, it is necessary to capture all documents received in paper form and to generate an electronically storable file format.
  • a known method for electronically detecting documents is the scanning. During the scanning, a linear scanning of the document takes place, wherein line by line is recorded in succession.
  • a known image recording device is disclosed in DE 102 04 660 A1 and comprises a base with an adjustable support arm, at the end of which a cone or cone is articulated.
  • the cone has at its front end a centrally arranged image sensor for taking an image of an object.
  • the signal generated by the image sensor is passed to a display device, such as a projector, and may also be connected to a random access memory to record the signals.
  • a display device such as a projector
  • a random access memory to record the signals.
  • the known image capture devices for connection to a projector usually have an image sensor with a resolution of about 300,000 pixels, which is sufficient for the intended application. However, this resolution is not acceptable for electronic document capture. About that In addition, the optical positioning aid known in the art is not suitable for document capture. If a single light source is used, it illuminates limited by a diaphragm, a rectangular area corresponding to the image pick-up area. However, this leads to a punctual light concentration within the image pickup area, which adversely affects the optical quality of the document to be detected. Especially with glossy paper reflections cause a deterioration of the image quality. The alternatively proposed arrangement of four light sources distributed over the edge of the cone merely indicates the corners of the image pickup area and therefore does not affect the surface of the document. The disadvantage, however, is the difficult orientation of the document during reading between the displayed corners of the image pick-up area.
  • the object of the invention is now to develop a system for digital document capture and storage that allows a simple way during reading a document exact alignment for electronic detection and thereby generates a file whose representation of the document qualitatively largely the Original corresponds.
  • the object is achieved according to the invention with a system in which the digital camera has an image resolution of at least 2 million pixels and the positioning aid is a single laser, which displays a border of the image pick-up area with four contact edges by means of an optical system.
  • the document is recorded by means of the digital camera, which, unlike a scanner, captures all the pixels simultaneously. This results in a much higher Detection speed of the document as in the known scanner technologies. Further enhancement of the recording quality is achieved by using a digital camera with an image resolution of, for example, 3.5 million pixels.
  • the digital camera works with the ambient light common in offices and does not require an additional light source for document capture.
  • the use of a single laser with holographic optics allows on the one hand a high-contrast representation of the four contact edges of the image pick-up area in daylight and on the other hand does not affect the image pick-up area, so that the optimized on ambient light digital camera captures the document without reflection regardless of the optical properties of its surface.
  • the digital camera and the optical positioning aid are arranged stationary in the support arm. This results in the advantage that the operator can very quickly find an orthogonal alignment of the support arm and thus automatically the digital camera and the optical positioning aid to the document to be recorded.
  • the swinging out of the support arm can be done either by hand or by means of a prestressed spring element.
  • a locking of the support arm should be present, with which the support arm is releasably fixed in the folded state of the stand again. Since both the digital camera and the optical positioning aid are stationary relative to each other, the actual image pickup area is inevitably displayed. In the event, for example, that the distance between the document and the digital camera should decrease, thereby providing only a smaller actual image pickup area, the image pickup area indicated by the optical positioning aid decreases to the same extent.
  • the electronic data processing device may have a font recognition software located thereon. This ensures a particularly high-quality document storage of written documents, as the raw data is converted into fair copy regardless of any pixel errors.
  • Breakthroughs for the digital camera and the optical positioning aid are preferably arranged on the underside of the support arm. This allows attaching the digital camera and the optical positioning aid within the support arm, whereby the precisely adjusted components are largely protected from damage. Another positive aspect is the savings in installation space, since the digital camera and the optical positioning aid do not need their own housing.
  • the arm itself serves as a housing.
  • openings can be provided in a lower wall of a wedge-shaped base, which is aligned horizontally in the ready position of the support arm.
  • an alignment of the support arm is additionally simplified because the lower wall only parallel to a base or to The top of the document to be recorded needs to be aligned.
  • the support arm is designed as a rigid hollow profile.
  • the hollow profile ensures on the one hand for a high stability of the support arm and on the other hand allows an integration of lines, the digital camera and the optical positioning aid in the support arm.
  • the support arm relative to the base is pivotable exclusively in a plane of movement. In a fully folded position of the support arm it rests against the base and requires a very small space requirement. To capture documents, the operator can flip the bracket over a hinge and place the digital camera and optical positioning aid in an operational position. By pivoting in a plane of motion, the support arm no additional degrees of freedom are available, so that the operator is very easy to find the ready position.
  • the digital camera For document capture and storage, the digital camera should have a constant focal length. This also further increases the ease of use and reduces the time required for document capture, especially as the distance between the digital camera and the underlying document is approximately constant.
  • a position sensor is arranged on the support arm. This automatically recognizes a ready position of the support arm in dependence of the opening angle to the base.
  • the positioning aid and the digital camera can be turned on or off.
  • This position sensor can also be connected to the data processing device.
  • the position sensor performs another function, namely, starting a program set up on the data processing device, for example, a font recognition software.
  • the data processing device can then run a program which cooperates with a second switch.
  • a program which cooperates with a second switch.
  • the second switch would be in an open switch position starting from the data processing device. This would also be the case if the program crashed.
  • the positioning aid is turned on when the first and second switches are closed when the support arm is in an operative position and the data processing apparatus is ready with the document capture and storage program set thereon.
  • the positioning aid is switched off when an opened first and / or second switch. Since the system is not ready for data acquisition, no display of the image pick-up area is needed.
  • the optical positioning aid is turned off when the support arm from the operational position is folded in the direction of the stand.
  • a positioning aid with a single laser, which displays by means of an optical system a border of the image pick-up area with four application edges, for digital document storage.
  • Fig. 1 a perspective side view of a
  • FIG. 2a shows a schematic arrangement of first and second switches in series connection
  • FIG. 2b an alternative to FIG. 2a
  • Image pickup area with four landing edges is
  • FIG. 1 shows a perspective side view of a document detection and storage system comprising a base 1, a support arm 2 pivotally attached thereto via a hinge 14, and a data processing device 6 connected to the base 1.
  • the support arm 2 carries at its hinge distal end in the axial extension one behind the other centrally arranged digital camera 3 and an optical positioning aid 4.
  • a wedge-shaped base 10 is formed on the underside 8 of the support arm 2, the lower wall 19 is provided with openings 9a, 9b, wherein the digital camera 3 protrudes through the opening 9a and the positioning aid 4 through the opening 9b.
  • the base 1 has a base plate 15 which is rigidly connected in one piece with a substantially vertically upstanding thereon pillar 16.
  • the column 16 is designed as a rectangular profile, wherein on the front side 17, a recess 18 for receiving the arranged on the support arm 2 wedge-shaped base 10 is present.
  • the articulated attachment of the support arm 2 on the base. 1 allows folding of the system, so that then the underside 8 of the support arm 2 fully rests against the base 1 and the base 10 can dip into the recess 18. This leads to very compact dimensions in the folded state.
  • the base plate 15 of the base 1 is on a non-descript surface, such as a desk.
  • the support arm 2 has reached its operative position when the lower wall 19 is aligned parallel to the surface.
  • an image pickup area 5 of the digital camera 3 is displayed by means of four contact edges 7a-d for document capture from the optical positioning aid 4.
  • the fan beams of the actual image pickup area of the digital camera and the optical positioning aid 4 are shown as dashed lines and meet in the application edges 7a-d.
  • the application edges 7a-d form a self-contained rectangle, wherein neither the surface outside the application edges 7a-d nor the enclosed image-receiving region 5 is illuminated by the optical positioning aid 4 and thereby optically influenced.
  • the orientation of the support arm 2, that is, a presence of a ready position, is detected by means of a position sensor 11.
  • a position sensor 11 come capacitive or inductive tilt sensors in question.
  • the position sensor 11 is not visible from the outside within the support arm. 2
  • FIG. 2a schematically shows a series connection of position sensor 11, a first switch 12, data processing device 6, a second switch 13 and digital camera 3 and optical positioning aid 4. Both switches 12, 13 are in an open position by way of example.
  • the first switch 12 is systemically closed when the support arm 2 (see FIG. 1) with the position sensor 11 located thereon is in an operational position.
  • the second switch 13 is in contact with the data processing device 6 and is controlled by this or the software located thereon.
  • FIG. 2b shows an alternative circuit of the position sensor 11 which, on the one hand, directly actuates the first switch 12 and, on the other hand, supplies the data processing device 6 with an input signal independent of the switching position of the first switch 12. The data processing device 6 then controls the second switch 13 and this the digital camera 3 and the optical positioning aid 4.
  • FIG. 3 the image pickup area 5 visible through the four contact edges 7a-d is shown in a plan view.
  • the abutment edges 7a-d are interrupted by arrowheads 20, which are aligned starting from the respective contact edge 7a-d in the direction of the image-receiving area 5 and facilitate the operator to quickly align the document to be detected.
  • Bottom support arm a, b breakthroughs wedge-shaped base

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Studio Devices (AREA)

Abstract

L'invention concerne un système de saisie et de mémorisation numériques de documents, comprenant un pied support (1) comportant un bras support (2) en liaison articulée avec ledit pied support, et une caméra numérique (3) qui présente un domaine de prise de vue (5) affichable au moyen d'un auxiliaire de positionnement optique (4) et qui est connectée à un dispositif de traitement de données électronique (6). L'invention a pour but de développer un système de saisie et de mémorisation numériques de documents qui soit en mesure d'effectuer, dès la lecture d'un document, un ajustement exact permettant une saisie électronique et fournissant un fichier dont la représentation du document correspond qualitativement en grande partie à l'original. Ce but est atteint, grâce au système selon l'invention qui est caractérisé en ce que la caméra numérique (3) présente une résolution d'image d'au moins 2 millions de points image, et en ce que l'auxiliaire de positionnement optique (4) est un laser unique qui, au moyen d'une optique, affiche une bordure du domaine de prise de vue (5) à quatre bords de repérage (7a-d).
EP06818022A 2005-10-12 2006-10-12 Systeme de saisie et de memorisation numeriques de documents Withdrawn EP1938574A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005049338A DE102005049338B3 (de) 2005-10-12 2005-10-12 System zur digitalen Dokumentenerfassung und -speicherung
PCT/DE2006/001845 WO2007042023A1 (fr) 2005-10-12 2006-10-12 Systeme de saisie et de memorisation numeriques de documents

Publications (1)

Publication Number Publication Date
EP1938574A1 true EP1938574A1 (fr) 2008-07-02

Family

ID=37545322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06818022A Withdrawn EP1938574A1 (fr) 2005-10-12 2006-10-12 Systeme de saisie et de memorisation numeriques de documents

Country Status (4)

Country Link
US (1) US20080212150A1 (fr)
EP (1) EP1938574A1 (fr)
DE (1) DE102005049338B3 (fr)
WO (1) WO2007042023A1 (fr)

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Also Published As

Publication number Publication date
DE102005049338B3 (de) 2007-01-04
US20080212150A1 (en) 2008-09-04
WO2007042023A1 (fr) 2007-04-19

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