JPH048775B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention performs morphological analysis, evaluation, etc. of facial soft tissue before and after treatment in dentistry, oral and oral surgery, orthodontics, plastic and cosmetic surgery, etc. Therefore, the present invention relates to a facial photographing device that takes photographs of the face from several directions.

[Technical background of the invention and its problems]

2. Description of the Related Art Conventionally, standard facial photographs taken of the face from a predetermined direction have been used mainly in the field of orthodontics as records before and after orthodontic treatment.

In recent years, surgical approaches to jaw deformities have been actively implemented, but postoperative evaluation relies mainly on angular and distance measurements of hard tissues. When analyzing soft tissues, an aluminum screen is used to examine the head X
Lateral soft tissues are often visualized on standard line photographs.

Recently, with the advent of stereoscopic photographs and moiré photographs using optical technology, the importance of facial photographs for diagnosis seems to be decreasing. Recognizing the degree of deviation involves a great risk and would mean not recognizing biological variability.

In this sense, facial photographs can be said to provide valuable data for understanding the overall characteristics of an individual.

[Object of the Invention] In view of the above-mentioned points, the present invention has been devised to make it possible to extremely easily and accurately take a standard facial photograph of the face taken from a predetermined direction, at a predetermined height, and in a predetermined size by a skilled worker. To provide a facial photographing device that can be installed in a narrow floor space without requiring a person or making the person to be photographed move.

In addition, the present invention allows the person to be photographed to sit down and insert the ear rods of the head fixation device into the ears of the person to be photographed, so that the height of the chair automatically matches the height of the camera and the camera is photographed. It is an object of the present invention to provide a facial photographing device that allows easy operation.

[Embodiments of the invention]

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

The face photographing device of this embodiment includes a support floor 1 placed on the floor, and a camera support arm 4 to which a camera 2 is attached and an operation panel 3 is installed.
, a chair 5 , a head fixing device 6 , a screen 7 , a camera support arm 8 rising from the back of the screen 7 , and a camera 9 attached to the camera support arm 8 .

Camera support arm 4 includes support column 41 and arm 42
and a handle 43 at the tip of the arm 42.
An elevating rod 44 is provided which is raised and lowered by means of a lever, and the camera 2 is attached to the upper end of the elevating rod 44 so that its angle can be set arbitrarily. And lifting rod 4
By adjusting 4, camera 2 can be set to any desired height.
Can be fixed in any direction.

Operation panel 3 attached to the side of arm 42
As shown in FIG. 4, there is a power switch 31, and a group of various switches 32 for controlling the seat 52, which will be described later.
2a, when the switch 32 is operated manually and the seat 52 faces the front of the camera 2,
The seat portion 52 is raised and lowered for the time period during which the operation is performed.
Switches 32b, 3 for left rotation and right rotation
2c, 32d, 32e, when the automatic manual changeover switch 32a is in the manual state, it counts each time it is pressed and selects a pre-stored position at an arbitrary angle, for example, front, 45 degrees left, 90 degrees left, 45 degrees left. Every time,
A count switch 32f for selecting whether to rotate to any of eight positions: front, 45 degrees right, 90 degrees right, 45 degrees right, and front;
Execution switch 32g for rotating the seat 52 to the position counted by
When the auto return switch 32h that lowers the camera to the lowest position is operated after the person to be photographed is seated on the seat 52 and the height of the ear rod 65g, which will be described later, is set,
A second set switch 32j raises and lowers the seat 52 to an appropriate position relative to the upper camera 9; a first set switch 32i similarly raises the seat 52 to an appropriate position relative to the front camera 2; The camera 9 is comprised of a lion off switch 32k for determining whether or not the face of the person to be photographed is tilted with respect to 2 by irradiating light, and a shutter switch 32l for turning off the shutter of the camera 9.

Note that the light for determining the inclination of the face is installed near the camera 2, and the shutter switch 3
The light is turned off by operating 2l.

The chair 5 includes a lower base 51 that can be rotated in either left or right direction by a motor with respect to the support floor 1, a seat 52 that can be raised and lowered up and down with hydraulic pressure with respect to the lower base 51, and the lower base 51 and the seat 52. It is composed of a mechanism section that operates the mechanism, a bellows section 53 that expands and contracts while concealing the mechanism section, and a leg rest 54 provided on the seat section 52.

The head fixing device 6 has a backrest 6 for the seat portion 52.
1 is attached to the seat 52, and rotates as the lower base 51 rotates.
It is designed to move up and down as the area rises and falls.

This cylindrical body 62 has an elevating rod 64 that can be moved up and down by an elevating switch 63 attached to its side.
is inserted, and an ear rod drive device 65 is attached to the upper end of the elevating rod 64. Note that when the height of the lifting rod 64 is adjusted by moving up and down with respect to the cylindrical body 62, an electric signal having a value corresponding to the height is sent out.

Next, the mechanism of this ear rod driving device 65 will be explained with reference to FIGS. 5 and 6. An elliptical rotary disk 65b is attached to the ear rod support 65a fixed to the upper end of the lifting rod 64, and is rotatable with respect to the ear rod support 65a.
It is rotated by c. And that rotary disk 65
Connecting rods 65d are pivotally connected to both ends of b, and one end of a rotating rod 65f, which is pivotally connected to a shaft 65e, is pivotally attached to each connecting rod 65d, and the ear is attached to the other end of the rotating rod 65f. A 65g rod is fixed. Therefore, when the handle 65c is rotated clockwise in the figure, the rotary disk 65b is also rotated clockwise and pulls the pair of connecting rods 65d. When the connecting rod 65d is pulled, the rotating rods 65f are rotated in a direction in which they become narrower, so that the ear rods 65g are rotated in an open direction and can be removed from the photographic subject's ear.

The camera support arm 8 is composed of an L-shaped support column 81, a weight 82 attached to the lower end of the support column 81, and an elevating rod 83 attached to the tip of the support column 81. The support column 81 becomes rotatable by rotating and loosening the handle 84, and the camera 9 attached to the lower end of the elevating rod 83 rotates and loosens the handle 85 to move the elevating rod 83 up and down. This allows it to move up and down.

FIG. 7 shows a circuit for moving the seat 5 up and down when the ear rod drive device 65 is moved up and down. In the figure, R ₁ is a potentiometer whose resistance value changes when the ear rod drive device 65 is moved up and down (that is, when the elevator rod 64 is moved up and down), and R ₂ is a potentiometer whose resistance value changes when the chair 5 is moved up and down. Potentiometer, R ₃
is a potentiometer whose resistance value changes when camera 2 is moved up and down, _R4 is a potentiometer whose resistance value changes when camera 9 is moved up and down, and these potentiometers _R1 to _R4 are ear rod drive devices. 65,
The connections are such that the higher the seat 5 and the cameras 2 and 9 are, the higher the voltage becomes. A is an adder that adds the voltages from potentiometers R ₁ and R ₂ , and B is an adder that compares the voltage from potentiometer R ₃ with that of adder A, and the chair 5 is moved until the comparison values match. The first comparator C, which sends out an output that moves the seat 5 up and down, compares the voltage from the adder A and the voltage from the potentiometer _R4 , and sends out an output that moves the seat 5 up and down until the comparison values match. This is the second comparator that sends out.

Next, the procedure for taking a facial photograph will be explained.

First, the person to be photographed is seated on the seat 52, and the ear rod drive device 65 is positioned on the head of the person to be photographed by operating the switch 63 to move the elevating rod 64 up and down. Then, by operating the handle 67, the ear rod 66 is inserted into the external ear canal of the person to be photographed, and the head of the person to be photographed is fixed. Here, the lifting rod 6
4 is moving up and down, the potentiometer
Since the resistance value of _R1 is changing, and the resistance value corresponding to the height of the chair 5 is output from the potentiometer _R2 , the voltage according to each resistance value is added by the adder A. and is input to one side of comparator B. Furthermore, since a voltage corresponding to the height of the camera 2 is input to the other side of the comparator B, in this state, the first set switch 3 of the operation panel 3 is
When 2i is pressed, a signal is sent from comparator B to move the seat 52 up and down. When the resistance value of the potentiometer _R2 changes due to the vertical movement of the seat part 52 and becomes equal to the resistance value of the potentiometer _R1 , the signal from the comparator B is stopped and the seat part 52 stops. do. In this state, the face of the person to be photographed is directly in front of the camera 2, that is, the ear rod 65g and the lens of the camera 2 are in a straight line.

In this state, when performing manual operation,
Automatic changeover switch 32 on operation panel 3
a to the manual side, turn off the shutter of the camera 2, and take a picture, then press the right rotation switch 32e or the left rotation switch 32d on the operation panel 3. Here, when the right rotation switch 32e or the left rotation switch 32d is pressed, the seat 5 is moved to the right rotation switch 32e.
The device rotates left and right only while pressing e and 32d, and therefore can take a photograph of the subject's face at a desired angle.

Next, during manual operation, the operation panel 3
count switch 32f and execution switch 32g
When rotating the seat 5 by each viewing angle (for example, 45 degrees left and right, up to 90 degrees), the seat 5
is facing the camera 2, press the count switch 32f once to turn on the execution switch 32.
When g is pressed, the seat 52 rotates 45 degrees to the left and stops. Thereafter, in the same manner, by pressing the count switch 32f once and pressing the execution switch 32g,
The seat 52 rotates in 45 degree increments and stops at a total of 9 positions as described above. In addition, if it is not necessary to stop at positions every 45 degrees, and if you want to turn the count switch 32f by the angle you want the seat 52 to turn, that is, if you want to turn the seat 52 45 degrees to the right,
This can be done by operating the count switch 32f five times and then pressing the execution switch 32g.

Note that the rotation angle of 45 degrees is just an example, and this angle can be set arbitrarily. Also switch 32
b and 32c, when pressed when the seat 52 faces the front, the seat 52 is raised and lowered only while being pressed.

Next, to explain the case of automatic operation, when you switch the automatic manual changeover switch 32a to the automatic side and then press the shutter of the camera 2, after a frontal photograph of the subject is taken, the seat 52 is automatically is rotated 90 degrees to the left. When the shutter of the camera 2 is pressed again, a photograph is taken at that position, and the seat portion 52 is rotated 45 degrees to the right and stopped. Thereafter, in the same manner, each time the shutter of the camera 2 is pressed, a photograph is taken, and the seat 52 is sequentially moved to the right 45.
degree, move 90 degrees to the right, move forward and stop.

When the auto return switch 32h is pressed while the seat 52 is facing the camera 2, the seat 52 is automatically lowered to the lowest position. Next, by releasing the fixation of the head by the ear rods 65g, the photographed person can get off the chair 5, and the entire photographing operation is completed.

Furthermore, a case where a photograph is taken from the top of the head will be explained.

First, when the subject is seated on the chair 5 and the ear rod 65g is attached to the subject's external ear canal as described above, the second set switch 32j of the operation panel 3 is pressed. The output from the switch A is input to one side of the comparator C and the camera 9
Since the output corresponding to the height of the potentiometer _R4 is input to the other comparator C, the comparator C
The seat 52 is moved up and down as a signal is sent out. Then, a potentiometer accompanying the vertical movement of the seat portion 52
When the output from R ₂ and the output from potentiometer R ₄ match, the output from comparator C is stopped, so the seat 52 is stopped.

Next, when the shutter switch 32l is pressed, the shutter of the camera 9 is turned off and a photograph taken from the top of the head is taken. At the same time, the write-on/off switch 32k is turned off.

In this way, with this facial photographing device, 5
It is possible to take standard photos from any direction, arbitrary facial photos, and photos from the top of the head.

[Effects of the Invention] As described above, the present invention fixes the head by placing the subject on a chair and then moving the head fixing device up and down to insert the ear rod into the external ear canal. . In this state, the height of the chair is automatically adjusted to the height of the camera, and the face of the person to be photographed faces the camera. Therefore, by operating the camera while rotating the chair, a standard photograph of the face can be taken from a predetermined angle by remote control.

In this way, the subject's head is fixed, the height is set, and the shooting angle is set, so there is no need to carry the camera around or the height or angle becomes uneven. A face standard photograph can be taken easily and accurately, and an expert is not required.

Further, since there is no need to measure the distance from the face to the camera each time the camera is moved, work efficiency can be improved.

Furthermore, by arranging and fixing the camera above, it is also possible to take a photograph from above the head of the person to be photographed with the head fixed, as described above.

The facial standard photographs and photographs taken from above the head taken in this way are used not only to compare the patient's face before and after treatment, but also to understand the proportions of each part of the face and the degree of deformation by drawing contour lines, etc. It can also be used for various photo evaluation methods, such as looking at the relative relationships between the nose, upper and lower lips, and the chin.

Therefore, reliable photographic diagnosis and accurate treatment can be performed.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a plan view, Fig. 3 is a front view, Fig. 4 is a front view of the operation panel, and Fig. 5 is a head view. FIG. 6 is a plan view of the fixing device, FIG. 6 is a side view of the same, and FIG. 7 is a block diagram for adjusting the height of the seat. 1...Support floor, 2, 9...Camera, 3...Operation panel, 4...Camera support arm, 5...Seat chair, 6...Head fixing device, 44...Elevating rod, 65
g... Ear rod.

Claims (1)

[Claims] 1. A camera support arm erected on a support floor and to which a front camera is attached; a camera support arm also erected on the support floor and to which a top camera is attached; a seat that is rotatably and movable up and down directly below the seat, and that rotates around the rotation center of the seat in conjunction with the rotation of the seat, and that can be moved up and down with respect to the seat. a head fixing device equipped with an ear rod inserted into the external ear canal; an operation panel installed near the camera mount and controlling the elevation and rotation of the chair; The vertical movement of the head fixing device and the vertical movement of the seat are converted into electrical signals, and the height of the front camera from the support floor is converted into electrical signals, and these electrical signals are compared to determine when the seat is seated. It is equipped with a control circuit that adjusts the height of the chair and controls the position of the ear rods so that it faces the front camera, and takes a facial photograph of the subject from a desired angle and a head photograph taken from above the head. A face photographing device characterized by being capable of taking photographs.