JPH0520440A - Seal impression collation device - Google Patents

Abstract

PURPOSE:To shorten time required for positioning by the quantity of the extraction of characteristic data by registering registered seal impression image data in an image data file part and registering characteristic data for positioning. CONSTITUTION:At the time of registering a seal impression, an image data read part 1 reads the registered seal impression as image data on binary image information and transfers it to a control part 2. The control part 2 analyzes image data from the read part 1, extracts characteristic data for positioning and registers it in the image data file part 3 with image data. At the time of collating the seal impression, the read part 1 reads the collated seal impression as collated image data on binary image information and transfers it to the control part 2. It fetches registered image data and characteristic data, and registered image data and collated image data are positioned by using characteristic data. Then, they are collated and a collation rate is calculated. Both image data are overlapped and are displayed in a display part 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal stamp collating device, and more particularly to a seal stamp collating device for collating registered seal image data with collated seal image data.

[0002]

2. Description of the Related Art A conventional seal stamp collating apparatus stores only registered seal imprint image data in an image data file section when registering a seal stamp, reads out the registered seal imprint image data from the image data file section when collating the seal stamp, and reads the image data reading section. The registered seal imprint image data and the collated seal imprint image data are collated with each other by performing registration with the collated seal imprint image data newly read from.

[0003]

The above-mentioned conventional seal stamp collating apparatus stores only the registered seal imprint image data in the image data file section and reads out the registered seal imprint image data from the image data file section at the time of collating the seal stamp. The registered seal imprint image data and the collated seal imprint image data are matched with the registered seal imprint image data and the collated seal imprint image data that are newly read from the reading unit. There is a problem that it takes time to align with the data, and it is difficult to put it into practical use at a window of a financial institution that competes for one second.

In view of the above points, an object of the present invention is to register the registered seal imprint image data in the image data file section at the time of registering the seal stamp, and at the same time, register the feature data for alignment, and at the time of collating the seal stamp. It is an object of the present invention to provide a seal stamp collation device which shortens the time required for the registration of the registered seal image data and the collated seal image data by the extraction of the characteristic data for the registration.

[0005]

A seal stamp collating apparatus according to the present invention includes an image data reading unit for reading seal image data, an image data file unit for storing registered seal image data and characteristic data for registration, and a registration unit. A display unit for displaying the seal imprint image data and the collated seal imprint image data, and characteristic data for alignment is extracted from the registered seal imprint image data when registering the seal stamp and stored in the image data file unit together with the registered seal imprint image data, At the time of collating the seal stamp, the registered seal image data and the characteristic data for alignment are read from the image data file section and aligned with the collated seal image data to collate the registered seal image data with the collated seal image data. And a control unit for performing.

[0006]

In the seal stamp collating apparatus of the present invention, the image data reading unit reads the seal imprint image data, the image data file unit stores the registered seal imprint image data and the feature data for alignment, and the display unit stores the registered seal imprint image data. And the collated seal imprint image data is displayed, and when the seal stamp is registered, the control unit extracts the characteristic data for alignment from the registered seal imprint image data and stores it in the image data file section together with the registered seal imprint image data. The registered seal imprint image data and the characteristic data for alignment are read from the image data file section, and the registered seal imprint image data and the collated seal imprint image data are collated with each other.

[0007]

The present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a seal matching device according to an embodiment of the present invention. The seal stamp collating apparatus according to the present embodiment includes an image data reading unit 1 for reading seal image data, an image data file unit together with registered seal image data by extracting characteristic data for registration from the seal image data registered when the seal is registered. 3 and the registered seal imprint image data and the characteristic data for alignment are read from the image data file section 3 at the time of collating the seal stamp, and the registered seal image data and the collated seal image data are aligned with each other. From a control unit 2 for collating with, an image data file unit 3 for storing registered seal image data and feature data for alignment, and a display unit 4 for displaying registered seal image data and collated seal image data. It is configured.

Next, the operation of the seal stamp collating apparatus of the present embodiment thus constructed will be described.

At the time of registering the seal stamp, the image data reading unit 1 reads the registered seal image as the registered seal image image data of the binary image information and transfers it to the control unit 2.

The control unit 2 analyzes the registered imprint image data passed from the image data reading unit 1 to extract characteristic data for alignment, and the characteristic data for alignment is imaged together with the registered imprint image data. Register in the data file section 3.

At the time of collating the seal stamp, the image data reading unit 1 reads the collated seal image as the collated seal image data of the binary image information and passes it to the control unit 2.

The control unit 2 includes an image data file unit 3
The registered imprint image data and the characteristic data for alignment are taken out from the registered imprint image data, and the registered imprint image data and the collated imprint image data passed from the image data reading unit 1 are aligned using the characteristic data for alignment. After that, the registered seal imprint image data and the collated seal imprint image data are collated to calculate the collation ratio, and the registered seal imprint image data and the collated seal imprint image data are superimposed and displayed on the display unit 4.

As the characteristic data for the alignment, for example, data obtained by projecting the registered surface imprint image data as shown in FIG. Can be used. At the time of collating the seal stamp, the rotation amount and the parallel movement amount are calculated by projecting the collated seal image data in one direction and performing matching in all directions with the feature data for the registration seal image data alignment. can do. Although it takes time to extract the characteristic data for alignment, when the seal stamp is registered, the characteristic data for alignment is extracted and stored in the image data file unit 3 together with the registered imprint image data. The data processing time in the control unit 2 can be shortened by the amount of extraction of the characteristic data for aligning the registered seal imprint image data and the collated seal imprint image data during collation of the seal stamp.

As the characteristic data for alignment, in addition to the data obtained by projecting the registered imprint image data on the Y axis in all directions, for example, every 1 degree, the projection surface profile characteristic is obtained. Partial image data in the vicinity of a portion having a large pattern curvature of the registered imprint image data as indicated by a circle inside, a ring at a radius from the center point (center of gravity) shown by hatching in FIG. It is also possible to use other feature data such as image data (ring data) of a striped area.

[0016]

As described above, according to the present invention, the registered seal imprint image data is stored in the image data file section and the characteristic data for alignment is also stored in the image data file section when the seal stamp is registered. By this, the time required to align the registered seal imprint image data and the collated seal imprint image data can be shortened by the amount of extraction of the characteristic data for the alignment at the time of collating the seal stamp, and the window of a financial institution competing for one second can be shortened. However, there is an effect that it is possible to provide a practical seal imprint matching device.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a seal matching device according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of extraction of feature data for alignment used in the seal matching device of the present embodiment.

FIG. 3 is a diagram showing another example of extraction of feature data for alignment used in the seal matching device of the present embodiment.

FIG. 4 is a diagram showing another example of extraction of feature data for alignment used in the seal matching device of the present embodiment.

[Explanation of symbols]

 1 image data reading unit 2 control unit 3 image data file unit 4 display unit

Claims (1)

Claims: 1. An image data reading unit for reading seal imprint image data, an image data file unit for storing registered seal imprint image data and characteristic data for alignment, registered seal imprint image data and collation target. The display unit that displays the seal imprint image data, and the feature data for registration is extracted from the registered seal imprint image data when registering the seal stamp, and stored in the image data file unit together with the registered seal imprint image data. It has a control unit for reading out the registered seal imprint image data and the feature data for alignment from the data file unit, aligning it with the collated seal image data, and collating the registered seal image data with the collated seal image data. A seal stamp collation device characterized by the above.