JP2000292834A - Device and method for photographing face picture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the device and method for photographing a face picture by which a full face picture can be always photographed independently of the height of the face of a person to be photographed. SOLUTION: In this device for photographing the face picture of the person, to be photographed in order to produce a photograph for certification to be stuck to an identification card, various licenses and the like, a camera 3 is adjusted to the face of the person 1 by being moved in parallel in the height direction of the person 1. The device is provided with a photographing means for photographing the face picture of the person 1 together with its background picture, a moving means for moving the photographing means in parallel in the height direction of the person 1, a control means for setting the photographing means at the height position of the face of the person 1 by controlling the drive of the moving means based on the picture photographed by the photographing means, and an output means for outputting the face picture photographed by the photographing means in order to print it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a face photographing apparatus and a face photographing apparatus for photographing a face image of a subject for the purpose of producing a photograph for identification to be attached to an identification card, various licenses, or the like. It relates to an image taking method.

[0002]

2. Description of the Related Art In general, in this type of face image photographing apparatus, when photographing a subject, the height of the face of the subject is changed by changing the angle of a photographing means (camera) in the vertical direction. Had to match.

[0003]

However, in a conventional face image photographing apparatus, for example, when a photographed person who is tall (has a high sitting height) is photographed, as shown in FIG. The photograph is not a frontal face, but looks down, or looks only at the eyes. This is an unnatural image as a proof photograph of the frontal face. Conversely, when a short (low sitting) subject is imaged, FIG.
As shown in (c), the photograph becomes an upper-looking photograph, and becomes an inappropriate image as an identification photograph of the front face. FIG.
(B) shows a photograph of the front face in a normal state.

[0004] In particular, when the photographing device is installed in a small area, the distance from the photographing means to the subject is very short, and this phenomenon becomes remarkable. Further, when the photographing in the upright posture and the photographing in the sitting posture such as a wheelchair holder are mixed, it becomes more remarkable.

Accordingly, an object of the present invention is to provide a face image photographing apparatus and a face image photographing method capable of always photographing a face image from the front without depending on the height of the face of the subject. And

[0006]

According to the present invention, there is provided a face image photographing apparatus, comprising: photographing means for photographing a face image of a subject; and adjusting the photographing means to the height of the face of the subject. The image processing apparatus includes a moving unit for performing parallel movement in the height direction of the subject and an output unit for outputting a face image photographed by the photographing unit for printing.

Further, the face image photographing apparatus of the present invention has a photographing means for photographing a face image of a subject, and an image display for real-time display by capturing the face image photographed by the photographing means as a continuous image. Means for moving the photographing means in parallel with the height of the photographed person so as to adjust to the height of the face of the photographed person while checking the display contents of the image display means; A still image capturing means for capturing the face image captured by the means as a still image; and an output means for outputting the still image captured by the still image capturing means for printing.

Further, the face image photographing apparatus of the present invention comprises: photographing means for photographing the face image of the subject together with the background image; moving means for moving the photographing means in parallel in the height direction of the photographed person; A control unit that sets the photographing unit to a height position of the face of the subject by controlling the driving of the moving unit based on the image photographed by the photographing unit; and a face photographed by the photographing unit. Output means for outputting an image for printing.

Further, the face image photographing apparatus of the present invention comprises: photographing means for photographing a face image of a photographed person together with its background image; moving means for moving the photographing means in parallel in the height direction of the photographed person; A first control means for controlling the driving of the moving means to move the photographing means to the highest position in the height direction of the subject, and the first control means moves the photographing means to the highest position. First still image capturing means for capturing an image obtained from the image capturing means as a still image, and extracting background image data of the subject from the still image captured by the first still image capturing means Data extracting means, and second control means for driving and controlling the moving means to move the photographing means at the highest position downward in the height direction of the subject. Move by means A second still image capturing unit for capturing an image obtained from the photographing unit as a still image, and a second still image capturing unit based on the background image data extracted by the data extracting unit. Determining means for determining whether or not the face of the subject is in an appropriate position during the inserted still image; and determining that the face of the subject is not in the appropriate position by the determining means. In this case, the still image capturing by the second still image capturing means is performed again,
A third control unit for stopping the movement of the photographing unit moving downward when the judgment unit judges that the face of the subject is in an appropriate position;
Third still image capturing means for capturing, as a still image, an image obtained from the photographing means which has been stopped by the control means, and printing the still image captured by the third still image capturing means. And output means for outputting.

Further, according to the face image photographing method of the present invention, the photographing means for photographing the face image of the subject together with the background image is translated in the height direction of the subject.
Moving the photographing means to the highest position in the height direction of the subject; capturing an image obtained from the photographing means moved to the highest position as a first still image; Extracting the background image data of the subject from the first still image; moving the photographing means at the uppermost position downward in the height direction of the subject; Capturing an image obtained from the photographing means in the second still image, and, based on the extracted background image data, determining that the face of the subject is appropriate in the captured second still image. A step of determining whether or not the face of the subject is not in an appropriate position; and causing the second still image to be captured again, To Stopping the movement of the photographing means which is moving downward, and determining an image obtained from the photographing means which has stopped moving. The method is characterized by comprising a step of capturing as a third still image and a step of outputting the captured third still image for printing.

Further, the face image photographing apparatus of the present invention comprises: photographing means for photographing a face image of a subject along with the background image; moving means for moving the photographing means in parallel in the height direction of the photographed person; A still image capturing unit that captures an image obtained from the photographing unit as a still image, and whether the face of the subject is in an appropriate position in the still image captured by the still image capturing unit. Determining means for determining whether or not the photographing means is moved in the height direction of the subject based on the result of the determination by the determining means; and And output means for outputting a still image obtained from the photographing means when the face is determined to be in an appropriate position.

Further, the face image photographing method of the present invention is configured to be capable of moving in parallel in the height direction of the photographed person, and has photographing means for photographing the face image of the photographed person together with its background image. Capturing an image obtained from the means as a still image, determining whether the face of the subject is in an appropriate position in the captured still image, and determining the determination result. Moving the photographing means in the height direction of the photographed person based on the above, and a still image obtained from the photographing means when it is determined that the face of the photographed person is in an appropriate position by the determination. And outputting it for printing.

According to the present invention, the photographing means moves in parallel in the height direction of the subject in order to adjust to the height of the subject's face, so that the face can always be photographed from the front of the subject. . Therefore, a face image can always be taken from the front without depending on the height of the face of the subject.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 schematically shows an external configuration of a face image photographing apparatus according to the present embodiment. This face image photographing apparatus includes an illuminator 2 for illuminating a subject 1 and a subject 1
A video camera 3 of a CCD type as photographing means for photographing at least a face image together with its background image; a display (monitor display) 5 for displaying photographing conditions and operation information of a photographer (operator) 4; The input image from the camera 3 is processed or the display 5
And a control board (control unit) 6 for outputting data to a built-in storage unit and the like, and a background plate 7 serving as a background of the subject 1 at the time of photographing.

The camera 3 is supported by a support member 8 erected on a control table 6 so as to be movable in parallel in the height direction (vertical direction) of the subject 1, and is manually operated by the photographer 4, or , Which are moved by moving means as described later.

The color of the background plate 7 is set to a suitable color (for example, blue) as the background of the photograph for certification.

FIG. 2 is a block diagram showing an overall configuration of the face image photographing apparatus shown in FIG. That is, a video capture unit 9 that converts an analog signal (input image) from the camera 3 into a digital signal in real time and transfers the digital signal to a video memory, a main memory, or the like, performs image data of the video capture unit 9, and performs other drawing processing. Do,
A video acceleration unit 10 for controlling display on the display 5, a CPU (Central Processing Unit) for performing various arithmetic processing and various controls on image data and others, and temporarily storing image data and arithmetic results. Main memory, CPU unit 11 having an interface with various peripheral devices, external bus control unit 12 controlling an external bus (for example, SCSI, etc.) connecting various peripheral devices, and moving means for moving camera 3 up and down. A camera moving unit 13 including a driving motor and various sensors, an I / O control unit 14 for interfacing the camera moving unit 13 with the control board 6, and a hard disk for storing various OSs, applications, control data, and the like. A portable storage medium for storing output data of the large-capacity storage medium 15 and the control console 6 and the like. A storage medium (for example, a magneto-optical disk) 16, a reader / writer unit 17 for reading and writing data from and to the storage medium 16, a keyboard 18 as an input device operated by an operator (photographer) 4, a mouse 19, and the like. It is constituted by.

Next, the operation in such a configuration will be described. The processing described below is mainly performed by the CPU 11
It is executed under the control of the CPU in the inside.

First, the operation for manually performing camera position alignment photographing will be described with reference to the flowchart shown in FIG.

First, in step S1, an input image (face image) from the camera 3 is fetched via the video capture unit 9, and the current photographing state is displayed on the display unit 5 in real time by the video acceleration unit 10. . here,
The operator 4 moves the camera 3 in front of the face of the subject 1 while checking the current shooting state displayed on the display 5 (step S2).

Next, the operator 4 presses a shooting button with the keyboard 18 or the mouse 19 (step S).
3). When the shooting button is pressed, the input image obtained from the camera 3 at this time is captured as a current still image via the video capture unit 9 and temporarily stored in the main memory in the CPU unit 11 (step S4).

Next, for a still image in the main memory,
Output image generation processing is performed by trimming to the output size, compression, file generation processing, etc. (step S
5). In this process, finally, in a printing unit (not shown), the face image subjected to the output image generation processing is printed out on a recording medium (paper) together with other personal information of the subject 1.

Next, the operation in the case of automatically performing the camera alignment photographing will be described with reference to the flowchart shown in FIG.

First, in step S11, the camera 3 is moved to the highest position by controlling the camera moving unit 13 by the I / O control unit 14. Here, the uppermost position is a height at which the background plate 7 is always photographed by the camera 3 irrespective of the height of the photographed person 1 standing in front of the apparatus.

Next, the operator 4 presses a shooting button with the keyboard 18 or the mouse 19 (step S1).
2). When the photographing button is pressed, the input image obtained from the camera 3 at this time is captured as the current still image (the still image at the highest position) via the video capture unit 9, and
Temporarily store in the main memory in the U section 11 (step S
13).

Next, the color data of the background plate 7 is extracted from the still image in the main memory (step S14). At this time, the camera 3 is at the highest position, and the background plate 7 is photographed at least in the upper part of the captured still image.
The color data value of the background plate 7 becomes a reference value at the time of face detection described later.

Next, the camera 3 is started to move downward by controlling the camera moving unit 13 by the I / O control unit 14 (step S15). Next, during the downward movement of the camera 3, the input image obtained at this time from the camera 3 is captured as a current still image via the video capture unit 9.
It is temporarily stored in the main memory in the PU unit 11 (step S16).

Next, in the still image in the main memory, the reference value (color data value of the background plate 7) for the face detection described above ±
The distribution of pixels that do not fall within the specified value A (that is, the subject 1
Is checked, and it is checked whether or not the upper end of the distribution (that is, the parietal portion) is within an area L ± specified value B which is a certain amount lower than the upper end of the still image (step). S17). This is because, when an image is output as shown in FIG. 5B, the background plate 7 having a certain width needs to be captured from the top of the head of the subject 1.

Further, since the detection here is performed while the camera 3 is moving downward, when the still image is fetched again in step S19 to be described later, the position is shifted downward from the current position. Must be added to that value.

In step S17, if the face area of the subject 1 is not found or is not located at the specified position, the process returns to step S16 again to continue the detection operation.

When the face area of the subject 1 is found in step S17, the downward movement of the camera 3 is stopped upon completion of the detection (step S18). At this time,
The input image obtained from the camera 3 is captured as a current still image (still image at the camera stop position) via the video capture unit 9 and temporarily stored in a main memory in the CPU unit 11 (step S19).

Next, for a still image in the main memory,
Output image generation processing is performed by trimming to output size, compression, file generation processing, etc. (step S2)
0). In this process, finally, in a printing unit (not shown), the face image subjected to the output image generation processing is printed out on a recording medium (paper) together with other personal information of the subject 1.

[0034]

As described above in detail, according to the present invention, the photographing means moves in parallel in the height direction of the subject in order to adjust to the height of the subject's face. A face image photographing apparatus and a face image photographing method capable of always photographing a face image from the front without depending on the height of the face of the subject can be provided.

[Brief description of the drawings]

FIG. 1 is a configuration diagram schematically showing an external configuration of a face image capturing apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an overall configuration of the face image photographing apparatus shown in FIG.

FIG. 3 is a flowchart for explaining an operation in a case where camera positioning shooting is performed manually.

FIG. 4 is a flowchart for explaining an operation in a case where automatic camera positioning shooting is performed.

FIG. 5 is a view for explaining an example of a face image obtained when a subject is imaged.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Subject 2 ... Illumination device 3 ... Video camera (photographing means) 4 ... Photographer (operator) 5 ... Display (display means) 6 ... Control stand (control part) 7 ... Background plate 9 Video capture unit 10 Video accelerator unit 11 CPU unit 13 Camera moving unit (moving means) 14 I / O control unit

Claims (7)

[Claims] 1. A photographing means for photographing a face image of a subject, and a moving means for translating the photographing means in the height direction of the photographed person so as to adjust to the height of the face of the photographed person. And an output unit for outputting the face image photographed by the photographing unit for printing. 2. A photographing means for photographing a face image of a subject, an image display means for displaying a face image photographed by the photographing means as a continuous image and displaying the photographed image in real time; Moving means for translating in parallel the height direction of the subject in order to adjust to the height of the face of the subject while checking the display contents of the image display means; A face image photographing apparatus, comprising: a still image capturing means for capturing as an image; and an output means for outputting a still image captured by the still image capturing means for printing. A photographing means for photographing a face image of the photographed person together with the background image; a moving means for translating the photographing means in the height direction of the photographed person; and an image photographed by the photographing means. Control means for setting the photographing means at the height position of the face of the subject by controlling the driving of the moving means, and output means for outputting a face image photographed by the photographing means for printing. A facial image capturing apparatus, comprising: 4. A photographing means for photographing a face image of a person to be photographed together with its background image, a moving means for translating the photographing means in the height direction of the person to be photographed, and a drive control of the moving means. First control means for moving the photographing means to the highest position in the height direction of the subject; and stopping the image obtained from the photographing means moved to the highest position by the first control means. First still image capturing means for capturing as an image, data extracting means for extracting background image data of the subject from a still image captured by the first still image capturing means, and the moving means A second control means for moving the photographing means at the uppermost position downward in the height direction of the subject by controlling the driving of the photographing means which is moving by the second control means. can get A second still image capturing unit that captures an image as a still image; and a second still image capturing unit that captures an image as a still image captured by the second still image capturing unit based on the background image data extracted by the data extracting unit. Determining means for determining whether or not the face of the subject is in an appropriate position; and determining that the face of the subject is not in the proper position by the determining means, When the still image capturing unit performs the capturing of the still image again, and the determining unit determines that the face of the subject is in an appropriate position, the moving of the capturing unit moving downward is performed. A third still image capturing unit that captures, as a still image, an image obtained from the photographing unit that has stopped moving by the third control unit; and a third still image capturing unit. To print still images captured by image capture means An output means for outputting, a face image photographing apparatus comprising: 5. A photographing means for photographing a face image of a subject together with its background image is moved in parallel in the height direction of the photographed person, so that the photographing means is moved to the highest position in the height direction of the photographed person. Moving the image to the uppermost position, capturing the image obtained from the photographing means as the first still image, and extracting background image data of the subject from the captured first still image. Extracting the photographing means; moving the photographing means at the uppermost position downward in the height direction of the subject; and acquiring an image obtained from the photographing means moving downward as a second still image. Determining whether or not the face of the subject is in an appropriate position in the captured second still image, based on the extracted background image data; If it is determined that the subject's face is not in the proper position, the second still image is captured again, and the subject's face is in the proper position. Stopping the movement of the photographing means which is moving downward, capturing an image obtained from the photographing means which has stopped moving as a third still image; Outputting the captured third still image for printing. 6. A photographing means for photographing a face image of a person to be photographed together with its background image, a moving means for translating the photographing means in the height direction of the person to be photographed, and a still image obtained from the photographing means. A still image capturing means for capturing as an image; a determining means for determining whether or not the face of the subject is in an appropriate position in a still image captured by the still image capturing means; Control means for driving and controlling the moving means so as to move the photographing means in the height direction of the photographed person based on the judgment result of the judging means; and that the face of the photographed person enters an appropriate position by the judging means. Output means for outputting a still image obtained from the photographing means for printing when it is determined that the face image is present. 7. A photographing means which is configured to be capable of moving in parallel in the height direction of the photographed person, and photographing a face image of the photographed person together with its background image, and an image obtained from the photographing means is taken as a still image. Capturing the image; determining whether or not the face of the subject is in an appropriate position in the captured still image; Moving the person in the height direction, and, if it is determined by the determination that the face of the subject is in an appropriate position, outputting the still image obtained from the image capturing means for printing; A face image photographing method characterized by comprising: