KR102086913B1 - Photographing apparatus and method for authentication - Google Patents

Abstract

Disclosed is a photographic apparatus and method for authentication. The authentication photographing apparatus includes: a plurality of cameras for photographing a subject; And a position and angle adjusting unit that adjusts at least one of the positions and angles of at least a portion of the plurality of cameras according to the horizontal and vertical sizes of the subject, wherein the plurality of cameras in which at least one of the positions and angles is adjusted is simultaneously A plurality of pictures may be generated by photographing the subject.

Description

{Photographing apparatus and method for authentication}

The present invention relates to a photographing apparatus and method for authentication.

 For example, in the case of fingerprint or iris recognition, there is a hassle that the user must take a predetermined action in order to be authenticated, for example, in the case of fingerprint recognition, touching a finger with a fingerprint recognition sensor, and in the case of iris recognition, taking an action to bring the eye closer to the iris recognition sensor. . In contrast, the face recognition technology does not require the user to take an unnatural predetermined action for authentication because the user's face can proceed immediately when the user's face is recognized through the camera.

However, the conventional technique has a disadvantage in that an image must be separately photographed at each designated angle for face authentication. In addition, there is a problem in that the recognition rate of each photographed image (picture) for each photographer is low.

(01) Republic of Korea Patent Publication No. 10-2013-0133676 (2013.12.09.)

The present invention is to provide a photographing apparatus and method for authentication.

In addition, the present invention is to provide a photographic apparatus and method for authentication that can simultaneously take a plurality of pictures required for authentication by adjusting the positions or angles of a plurality of cameras to suit a person's face size.

Through this, the present invention is to provide a photographing apparatus and method for authentication that can secure a photo with a high recognition rate during face authentication.

In addition, the present invention is an authentication picture-taking device that enables authentication to be performed better at a later face authentication by allowing the authentication comparison picture (image) to maintain a similar quality for each person (up and down, left and right shooting angle, face angle of the picture) It is to provide a method.

According to an aspect of the present invention, there is provided a photographing device for authentication.

According to an embodiment of the present invention, a plurality of cameras for photographing a subject; And a position and angle adjusting unit that adjusts at least one of the positions and angles of at least a portion of the plurality of cameras according to the horizontal and vertical sizes of the subject, wherein the plurality of cameras in which at least one of the positions and angles is adjusted is simultaneously A photographing apparatus for authentication may be provided, characterized in that a plurality of photographs are generated by photographing the subject.

The plurality of cameras, a front camera photographing the front of the subject, an upper camera, a lower camera, a left camera, and a right camera, which are arranged to be spaced apart by a predetermined distance, respectively, with respect to the center of the front camera. It may include a camera.

A subject recognition unit that recognizes the center of the subject and the vertical and horizontal sizes of the subject may be further included using the front image photographed through the front camera.

The position and angle adjustment unit may adjust at least one of the position and angle of the front camera using the center of the subject.

The position and angle adjusting unit may adjust at least one of the position and angle of the upper camera, the lower camera, the left camera, and the right camera according to the size of the subject, based on the position of the front camera.

The position and angle adjusting unit, the upper camera, the lower camera, the lower camera, the left camera and the right camera from the center of the recognized object by a specified angle from the center of the object to shoot the subject, At least one of a position and an angle of the lower camera, the left camera, and the right camera may be adjusted.

When it is impossible to recognize the size of the subject in the front image, an adjustment member for moving the frame including the plurality of cameras upward or downward may be further included.

A correction unit may be further included to adjust the angle of the photographed image according to the movement of the subject.

A sensor for recognizing the center of the subject and the size of the subject may be further included.

Further comprising a display unit for outputting an image captured by the plurality of cameras, the display unit may further output a guide according to the center of the subject or the size of the subject.

Further comprising a reader for reading the card to read the card information, the display unit may further output the card information on a portion of the output screen.

According to another aspect of the present invention, a method for photographing an authentication is provided.

According to an embodiment of the present invention, (a) outputting a preview image of the subject; (b) recognizing the horizontal and vertical size of the subject using a preview image of the subject; (c) adjusting at least one of positions and angles of some of the plurality of cameras according to the size of the subject's horizontal and vertical directions; And (d) generating a picture for authentication by simultaneously photographing the subject through a plurality of cameras in which at least one of the position and the angle is adjusted can be provided.

The step (b) may further include recognizing the center of the subject.

The step (c) may include: adjusting at least one of a position and an angle of a front camera among a plurality of cameras using the center of the subject; And adjusting at least one of the positions and angles of the remaining cameras among the plurality of cameras according to the horizontal and vertical sizes of the subject, based on the position of the front camera.

Before the step (c), if it is impossible to recognize at least one of the horizontal and vertical sizes of the subject in the preview image, the method may further include moving a frame including the plurality of cameras upward or downward. have.

The method may further include adjusting an angle of the photographed image according to the movement of the subject.

In step (a), card information recognized together with the preview image may be output.

By providing an apparatus and method for authenticating photographs according to an embodiment of the present invention, it is possible to simultaneously take a plurality of photographs required for authentication by adjusting the positions or angles of a plurality of cameras to suit a person's face size.

Through this, the present invention can secure a photo with a high recognition rate during face authentication.

In addition, the present invention has the advantage that the authentication comparison picture (image) by maintaining a similar quality (up and down, left and right shooting angle, the face angle of the photo) for each person can be better authentication in the future face authentication.

1 is a block diagram schematically showing the internal configuration of a photographing apparatus for authentication according to an embodiment of the present invention.
Figure 2 is a view showing a picture taking device for authentication according to an embodiment of the present invention.
3 is a view for explaining front camera position adjustment according to an embodiment of the present invention.
4 is a view for explaining the position adjustment of a plurality of cameras according to an embodiment of the present invention.
5 is a view for explaining a subject photographing of a plurality of cameras according to an embodiment of the present invention.
6 is a flowchart illustrating a method for taking a picture for recognition according to an embodiment of the present invention.

The singular expression used in this specification includes the plural expression unless the context clearly indicates otherwise. In this specification, the terms "consisting of" or "comprising" should not be construed as including all of the various components, or various steps described in the specification, among which some components or some steps It may not be included, or it should be construed to further include additional components or steps. In addition, terms such as “... unit” and “module” described in the specification mean a unit that processes at least one function or operation, which may be implemented in hardware or software, or a combination of hardware and software. . Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically showing the internal configuration of an authentication photographing apparatus according to an embodiment of the present invention, and FIG. 2 is a diagram showing an authentication photographing apparatus according to an embodiment of the present invention, 3 is a view illustrating a front camera position adjustment according to an embodiment of the present invention, and FIG. 4 is a view illustrating a position adjustment of a plurality of cameras according to an embodiment of the present invention, 5 is a view illustrating a subject photographing of a plurality of cameras according to an embodiment of the present invention.

Referring to FIG. 1, the authentication photographing apparatus 100 according to an embodiment of the present invention includes a plurality of cameras 110a to 110e, a subject recognition unit 115, a position and angle adjustment unit 120, and a correction unit It includes a 125, a display 130, a reader 135, a memory 140 and a processor 145.

The plurality of cameras 110a to 110e are means for taking a picture of the subject. A plurality of cameras (110a ~ 110e) is a front camera that shoots the front of the subject, an upper camera that shoots an image (picture) of the image at an angle specified upward with respect to the front of the subject, and is designated downward with respect to the front of the subject The lower camera that shoots the lower image (photo) of the angle, the left camera that shoots the left image (photo) of the angle specified to the left with respect to the front, and the right image (picture) of the angle specified to the right based on the front. Includes the right camera to shoot.

2 shows an external view of the photographing apparatus 100 for authentication. Referring to FIG. 2, in the photo photographing apparatus 100 for authentication, a plurality of cameras 110a to 110e are positioned inside the frame 210. The plurality of cameras 110a to 110e are the front camera 110a, the upper camera 110b and the lower camera 110c, and the front camera 110a, which are arranged to be spaced apart a predetermined distance from the upper and lower sides based on the front camera 110a. It includes a left camera (110d) and a right camera (110e) are spaced a predetermined distance to the left and right, respectively.

The plurality of cameras 110a to 110e will be described in more detail below, but at least one of a position and an angle may be adjusted according to the center of the subject and the size (horizontal and vertical size) of the subject. This will be more clearly understood by the following description.

The subject recognition unit 115 is a means for recognizing the size of the center, width and length of the subject.

For example, the subject recognition unit 115 may recognize the center of the subject (for example, the eye) using an image photographed by the front camera 110a (for convenience, referred to as a front image). Also, the subject recognition unit 115 may recognize the horizontal and vertical sizes of the subject using the front image. In this specification, for convenience of understanding and explanation, it is assumed that the subject is a human face, but it is natural that the subject is not necessarily limited to the human face.

In FIG. 1, it is mainly described that the subject recognition unit 115 recognizes the center of the subject and the size (horizontal and vertical sizes) of the subject through a preview image photographed by the front camera 110a. However, the subject recognition unit 115 may be an optical sensor or an infrared sensor. That is, the center of the subject and the size of the subject may be recognized by the sensor.

The position and angle adjustment unit 120 adjusts at least one of the position and angle of at least a portion of the plurality of cameras 110a to 110e.

For example, the position and angle adjustment unit 120 is at least a part of the plurality of cameras (110a ~ 110e) according to the center of the subject recognized by the subject recognition unit 115, the size of the subject (horizontal and vertical size) You can adjust the position and angle of the.

In the default state, the plurality of cameras 110a to 110e may be set to at least one of position and angle using the average face size of a Korean adult male or female in the state. In this state, the position and angle adjustment unit 120 is positioned such that the center of the subject (eg, the eye) recognized by the subject recognition unit 115 is positioned at the center of the image photographed by the front camera 110a. The position of the camera 110a can be adjusted. Subsequently, the position and angle adjusting unit 120 may adjust the position and angle of at least some of the plurality of cameras 110a to 110e to the upper, lower, left, or right sides according to the size of the subject's horizontal and vertical.

In this specification, for convenience of understanding and explanation, it is assumed that the image is a 15-degree image from the center (eye) of the subject to the upper, lower, left, and right sides, but it is natural that the angle can be arbitrarily adjusted in actual implementation. Do.

3 is a view illustrating the angles of the front camera and the upper and lower cameras. In this specification, for convenience of understanding and explanation, it is assumed that the distance (interval) between the subject and the front camera 110a is 500 mm, but the distance between the subject and the front camera 110a may be arbitrarily adjusted in actual implementation. It is natural that you can.

The front camera 110a sets the position of the front camera 110a (and the front camera angle, the camera lens angle of view) so that the center of the subject (eg, the eye) is positioned at the center of the image photographed by the front camera 110a. Can be adjusted. As described above, after the position of the front camera 110a is adjusted, the upper camera 110b has the position and angle of the upper camera 110b so as to take an image from the center of the subject (for example, the eye) 15 degrees upward. Can be adjusted. Similarly, the position and angle of the lower camera 110c may be adjusted so that the lower camera 110c captures an image 15 degrees below the center of the subject (eg, the eye).

In this way, the left and right cameras can also be adjusted to at least one of the position and angle of the left or right camera to take an image 15 degrees left or right from the center of the subject (eg, the eye).

Although not clearly shown in FIG. 3, it may further include a separate adjustment member (not shown) for adjusting the vertical position of the frame 210 of the photographing apparatus 100 for authentication. In this case, prior to the detailed position adjustment of the plurality of cameras 110a to 110e due to the difference in the sitting height of the subject, the adjustment member (not shown) itself is a frame 210 in which the plurality of cameras 110a to 110e are mounted. May be adjusted upward or downward depending on the position of the center of the subject (for example, the eye).

The correction unit 125 is a means for correcting a subject angle according to the movement of the subject.

For example, the correction unit 125 may correct an angle of a picture taken by at least some of the plurality of cameras 110a to 110e to match a specified angle according to the movement of the subject.

The display unit 130 is a means for visually outputting data (eg, an image).

After dividing the screen into a plurality of areas, the display 130 may output an image captured by at least a part of the plurality of cameras 110a to 110e in any one of the plurality of areas. Also, the display unit 130 may output card information recognized by the reader 135 to another one of the plurality of areas.

Referring to FIG. 2, a display unit 130 may be provided between the front camera 110a and the bottom camera 110c. At this time, the first region 220 of the output screen may be a subject image is output. The first region 220 is a central location of the frame 210 and may be located between the right camera 110e and the front camera 110a between the left camera 110d and the front camera 110a.

Also, the second region 230 may be located on the left or right side of the first region.

Through this, the photographer can confirm whether his face is photographed at the correct location through the output screen. In addition, the photographer has the advantage of checking his / her card information (eg, employee ID information, membership card information, etc.) recognized by the reader 135 in the second area 230 to confirm whether the user is correct.

In addition, a guide line (or a guide area) for informing an appropriate photographing position according to a horizontal and vertical size of a subject may be further output on the first area 220 of the display unit 130. As described above, as the guide line (or guide area) is output through the display unit 130, the photographer adjusts the position of the face of the photographer so that his or her face is positioned on the guide line (or guide area), thereby making the picture suitable for authentication. You can also make it possible to shoot.

The reader 135 is a means for recognizing an employee ID.

Since the operation method of the reader 135 itself is obvious to those skilled in the art, a separate description thereof will be omitted.

The memory 140 stores various algorithms, commands, and various data derived from this process for taking pictures for recognition according to an embodiment of the present invention.

The processor 145 includes internal components (for example, a plurality of cameras 110a to 110e), a subject recognition unit 115, a position and an angle of the photographing apparatus 100 for authentication according to an embodiment of the present invention It is a means for controlling the adjustment unit 120, the correction unit 125, the display unit 130, the reader 135, the memory 140, and the like.

FIG. 4 is a diagram illustrating a method of additionally adjusting an angle of at least some of the plurality of cameras 110a to 110e according to the size of the face and the height of the photographer when the subject is a person.

A person's face size and height vary from person to person. Therefore, at least some of the plurality of cameras 110a to 110e may be further angled according to a person's face size and height. At this time, the additional angle adjustment for at least some of the plurality of cameras 110a to 110e according to the face size and height of the person may further correct the angle based on the default setting state of the plurality of cameras 110a to 110e. . That is, as illustrated in FIG. 4, in a state in which the positions of the plurality of cameras 110a to 110e are set to the default state based on the standard face size of an adult male or female, the height of the photographer is small and the face of the subject is small. If size recognition is not possible, the angle of at least a portion of the plurality of cameras may be additionally adjusted to shoot.

5 illustrates a picture taken by a plurality of cameras after at least one of the positions and angles of at least some of the plurality of cameras is adjusted according to the center and size (horizontal, vertical size) of the subject. As shown in FIG. 5, a plurality of cameras according to an embodiment of the present invention photographs an object from the front, 15 degrees from the center, and 15 degrees from the center and 15 degrees from the center, and 15 degrees from the center, upward and center From 15 degrees can be taken from the lower side to generate a photo for authentication.

6 is a flowchart illustrating a method for taking a picture for recognition according to an embodiment of the present invention.

In step 610, the photographing apparatus 100 for authentication outputs a preview image of the subject.

Here, the preview image of the subject may be a preview image taken by the front camera 110a among the plurality of cameras 110a to 110e. In addition, in outputting the preview image, the photo photographing apparatus 100 for authentication may output the recognized card information together as described above. Since this is the same as described in FIG. 1, redundant description will be omitted.

In step 615, the photographing apparatus 100 for authentication recognizes the center of the subject and the size of the subject (horizontal and vertical sizes) using the preview image of the subject.

In step 620, the photographing apparatus 100 for authentication adjusts at least one of the positions and angles of at least some of the plurality of cameras 110a to 110e using the recognized center of the subject and the size of the subject.

For example, the authentication photographing apparatus 100 may adjust at least one of a position and an angle of a front camera among a plurality of cameras using a center of a subject. Subsequently, the authentication photographing apparatus 100 may adjust at least one of the positions and angles of the remaining cameras among the plurality of cameras according to the horizontal and vertical sizes of the subject, based on the position of the front camera.

The authentication photographing apparatus 100, before adjusting the position and angle of at least a portion of the plurality of cameras 110a to 110e, is unable to recognize the size of the subject through the preview image of the subject, the photographing apparatus for authentication ( The frame of 100) may be moved upward or downward.

In step 625, the photographing apparatus 100 for authentication photographs a subject simultaneously through a plurality of cameras in which at least one of a position and an angle is adjusted to generate a photograph for authentication. Here, the image photographed through the plurality of cameras may be additionally corrected to match the specified angle according to the movement of the subject.

The apparatus and method according to an embodiment of the present invention may be implemented in a form of program instructions that can be executed through various computer means and recorded in a computer readable medium. Computer-readable media may include program instructions, data files, data structures, or the like alone or in combination. The program instructions recorded on the computer-readable medium may be specially designed and configured for the present invention or may be known and usable by those skilled in the computer software field. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs, DVDs, and magnetic media such as floptical disks. Includes hardware devices specifically configured to store and execute program instructions such as magneto-optical media and ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language code that can be executed by a computer using an interpreter, etc., as well as machine language codes produced by a compiler.

The hardware device described above may be configured to operate as one or more software modules to perform the operation of the present invention, and vice versa.

So far, the present invention has been focused on the embodiments. Those skilled in the art to which the present invention pertains will understand that the present invention may be implemented in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered in terms of explanation, not limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent range should be interpreted as being included in the present invention.

100: photographic device for authentication
110a ~ 110e: Multiple cameras
115: subject recognition unit
120: position and angle adjustment
125: correction unit
130: display unit
135: reader
140: memory
145: processor

Claims (18)

A plurality of cameras photographing the subject; And
It includes a position and angle adjustment unit for adjusting at least one of the position and angle of at least a portion of the plurality of cameras according to the horizontal and vertical size of the subject,
A plurality of cameras in which at least one of the position and angle is adjusted simultaneously photographs the subject to generate a plurality of photos,
The plurality of cameras,
And a front camera photographing the front of the subject, an upper camera, a lower camera, a left camera, and a right camera, which are spaced apart by a predetermined distance to the upper, lower, left, and right sides based on the center of the front camera.
Further comprising a subject recognition unit for recognizing the center of the subject and the vertical and horizontal size of the subject using the front image photographed by the front camera,
The subject recognition unit recognizes the center of the subject with the eyes of the subject,
Further comprising a display unit for outputting the image taken by the plurality of cameras,
The display unit further outputs a guide according to the center of the subject or the size of the subject,
The display unit includes a first area in which an image of the subject is output,
The front camera is positioned adjacent to the first area above the first area so as to approach the eye level of the subject,
The lower camera is characterized in that it is located on the lower side of the 1 area, the photographing device for authentication.
delete delete According to claim 1,
The position and angle adjustment unit,
A photo-taking device for authentication, characterized in that at least one of the position and the angle of the front camera is adjusted using the center of the subject.
According to claim 4,
The position and angle adjustment unit,
Based on the position of the front camera, the photographing device for authentication, characterized in that at least one of the position and angle of the upper camera, the lower camera, the left camera and the right camera according to the size of the subject.
The method of claim 5,
The position and angle adjustment unit,
The upper camera, the lower camera, the left camera and the right so that the upper camera, the lower camera, the left camera, and the right camera shoot the subject from the upper, lower, left, and right sides by a designated angle from the center of the recognized subject. Authentication device for photographing, characterized in that for adjusting at least one of the position and angle of the camera.
According to claim 1,
If it is impossible to recognize the size of the subject in the front image, the photo photographing device for authentication further comprising an adjustment member for moving the frame including the plurality of cameras upward or downward.
According to claim 1,
Further comprising a correction unit for correcting to match the specified angle of the photographed image according to the movement of the subject, the photographing device for authentication.
According to claim 1,
Further comprising a sensor for recognizing the center of the subject and the size of the subject, the photographing device for authentication.
delete According to claim 1,
It further includes a reader to read the card and read the card information,
The display unit photographing device for authentication, characterized in that for further outputting the card information on a portion of the output screen.
(a) outputting a preview image of the subject;
(b) recognizing the horizontal and vertical size of the subject using a preview image of the subject;
(c) adjusting at least one of positions and angles of some of the plurality of cameras according to the size of the subject's horizontal and vertical directions; And
(d) generating a picture for authentication by simultaneously photographing the subject through a plurality of cameras in which at least one of the position and angle is adjusted,
The step (b) further includes recognizing the center of the subject,
The center of the subject is recognized by the eye of the subject,
The preview image of the subject is output to the eye level of the subject,
The front camera among the plurality of cameras is positioned to be close to an area where the preview image is output so as to be positioned at the eye level of the subject, a method for taking a picture for authentication.
delete The method of claim 12,
Step (c) is,
Adjusting at least one of a position and an angle of a front camera among a plurality of cameras using the center of the subject; And
And adjusting at least one of the positions and angles of the remaining cameras among the plurality of cameras according to the horizontal and vertical sizes of the subject, based on the position of the front camera.
The method of claim 12,
Before step (c),
And when it is impossible to recognize at least one of the horizontal and vertical sizes of the subject in the preview image, moving the frame including the plurality of cameras upward or downward.
The method of claim 12,
And correcting the photographed image to match a specified angle according to the movement of the subject.
The method of claim 12,
Step (a) is,
And outputting the card information recognized together with the preview image.
A computer-readable recording medium product having recorded program code for performing the method according to any one of claims 12, 14 to 17.

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