JP2001314391A - Visual input/supplying device, signal acquring device, and image photographic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a visual input/supplying device which has such a simple constitution that dissolves the enclosed feeling of a subject when the subject faces a wall and a signal acquiring device and image photographic device equipped with the device. SOLUTION: A visual input is projected upon a translucent plate 71 positioned on the head top side of the subject 31 to which an input to vision is supplied by means of projecting means 73 and 75 and the visual line of the subject 31 is directed toward the projected visual input through a visual line controlling means 77.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a visual input supply device, a signal acquisition device, and an image capturing device, and more particularly, to a visual input device for supplying a visual input to a living body having vision in a direction substantially orthogonal to the body axis direction. The present invention relates to a signal acquisition device and an image capturing device provided with such a visual input supply device.

[0002]

2. Description of the Related Art Magnetic resonance imaging (MRI: Magneti)
c Resonance Imaging) device
The imaging target is carried into an internal space of a magnet system, that is, an imaging space in which a static magnetic field is formed, and a gradient magnetic field and a high-frequency magnetic field are applied to generate a magnetic resonance signal in the imaging target. A tomographic image is generated (reconstructed) based on the tomographic image.

In the photographing space, the photographing object takes a posture facing the inner wall of the magnet system, so that the field of view is obstructed and a sense of obstruction is generated. Therefore, in order to alleviate the feeling of obstruction, a reflecting mirror is provided in front of the subject to be photographed, so that the outside can be seen through the entrance of the magnet system. Alternatively, a face mount display (f
Using an ace mount display, an image supplied through an optical fiber is shown.

[0004]

Since the external scene obtained by the reflecting mirror is obtained through the entrance of the magnet system, the field of view is narrow, and it is far from resolving the feeling of blockage. Further, since the face mount display supplies an image using an optical fiber, it requires a precise structure and is expensive.

Therefore, an object of the present invention is to provide a visual input supply device having a simple configuration that eliminates a feeling of blockage when facing a wall,
It is an object of the present invention to realize a signal acquisition device and an image capturing device having such a visual input supply device.

[0006]

Means for Solving the Problems (1) According to one aspect of the invention for solving the above-mentioned problems, the invention is directed to a translucent space facing a vertex of an object in a space accommodating the object to which visual input is supplied. A visual input supply device, comprising: a plate; projection means for projecting visual input to the plate from the side opposite to the object; and line-of-sight regulating means for directing the line of sight of the object to the plate. It is.

In the invention according to this aspect, the visual input is projected on the translucent plate located on the top of the target to which the visual input is supplied, and the line of sight is directed to the translucent plate via the line-of-sight regulating means. Since the visual input projected on the translucent plate occupies most of the visual field, the feeling of blockage in the accommodation space is eliminated. In addition, since the visual input projected on the translucent plate is shown, the configuration of the apparatus is simple.

(2) According to another aspect of the present invention, there is provided a signal acquisition means having a space for accommodating a signal acquisition target, and a translucent plate facing the top of the target in the space. And a projection means for projecting visual input to the board from a side opposite to the object, and a line-of-sight regulating means for directing the object's line of sight to the board.

In the invention according to this aspect, a visual input is projected on the translucent plate located on the vertex of the signal acquisition target, and the line of sight is directed to the translucent plate via the line-of-sight restricting means. Since the visual input projected on the translucent plate occupies most of the visual field, the feeling of blockage in the accommodation space is eliminated.
In addition, since the visual input projected on the translucent plate is shown, the configuration of the apparatus is simple.

(3) According to another aspect of the present invention, there is provided an image capturing means having a space for accommodating a subject to be photographed, and a translucent plate facing the top of the subject in the space. An image capturing apparatus comprising: a projection unit configured to project an input to vision from a side opposite to the object on the plate; and a line-of-sight regulating unit configured to direct a line of sight of the object toward the plate.

In the invention from this viewpoint, a visual input is projected on the translucent plate located on the top side of the photographing object, and the line of sight is directed to the translucent plate via the line-of-sight restricting means. Since the visual input projected on the translucent plate occupies most of the visual field, the feeling of blockage in the accommodation space is eliminated. In addition, since the visual input projected on the translucent plate is shown, the configuration of the apparatus is simple.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiment. FIG. 1 shows a block diagram of the magnetic resonance imaging apparatus. This device is an example of an embodiment of the present invention. The configuration of the present apparatus shows an example of an embodiment relating to the apparatus of the present invention.

As shown in FIG. 1, the present apparatus has a magnet system (magnet system) 11.
The magnet system 11 has a main magnetic field coil unit 101 and a gradient coil unit 105. Each of these coil portions has a substantially cylindrical shape and is arranged coaxially with each other.
The direction of the bore of the magnet system 11 is vertical. Therefore, this is called a vertical bore magnet system.

A subject 31 to be imaged is seated on a seat 43 and carried into the generally cylindrical internal space of the magnet system 11. The direction of the central axis of the substantially cylindrical internal space is the vertical direction. Note that the shape of the internal space is not limited to a columnar shape, and may be a columnar space having an appropriate cross section. By sitting on the seat 43, the subject 31
Is in an upright position. The seat 43 on which the subject 31 is seated is driven by the seat driving unit 111 and advances and retreats in the vertical direction.

Although not shown in this figure, the magnet system 11 has a visual input supply device for supplying an input to the subject 31's vision. The visual input supply device will be described later.

The head of the subject 31 is fitted with an RF coil (radio) mounted on the upper part of the backrest of the seat 43.
frequency coil) unit 33. The RF coil unit 33 is, for example, a TEM resonator (transverse electromagnet).
It is configured using an RF coil of an ic mode resonator. The RF coil unit 33 also has a substantially cylindrical shape, and is arranged coaxially with the main magnetic field coil unit 101 and the gradient coil unit 105 in the internal space of the magnet system 11.

The main magnetic field coil unit 101 forms a static magnetic field in the internal space of the magnet system 11. The main magnetic field coil unit 101 is configured using, for example, a superconducting coil. It is needless to say that not only the superconducting coil but also a normal conducting coil may be used.

The gradient coil section 105 generates a gradient magnetic field for giving a gradient to the static magnetic field strength. The generated gradient magnetic fields are a slice gradient magnetic field, a readout gradient magnetic field, and a phase encode gradient magnetic field. The gradient coil unit 1 corresponds to these three types of gradient magnetic fields.
05 has three gradient coils (not shown).

The RF coil unit 33 places the subject 3 in the static magnetic field space.
A high-frequency magnetic field for exciting spins in the body is formed. Forming a high-frequency magnetic field is called transmission of an RF excitation signal. The transmission of the RF excitation signal may be performed by a transmission-dedicated RF coil different from the RF coil unit 33. The RF coil unit 33 also receives an electromagnetic wave generated by the excited spin, that is, a magnetic resonance signal.

The gradient driving section 131 supplies a driving signal to the gradient coil section 105 to generate a gradient magnetic field. Gradient drive unit 1
Reference numeral 31 has three drive circuits (not shown) corresponding to the three gradient coils in the gradient coil unit 105. R
The F drive unit 141 supplies a drive signal to the RF coil unit 33 to transmit an RF excitation signal to excite spins in the body of the subject 31. The data collection unit 151 captures the received signal received by the RF coil unit 33 and converts it into digital data (d
digital data).

The seat driving unit 111, the gradient driving unit 131, R
The F driving unit 141 and the data collecting unit 151
1 is controlled. Magnet system 11, seat driving unit 111, gradient driving unit 131, RF driving unit 141,
The part including the data collection unit 151 and the control unit 161 is an example of an embodiment of a signal acquisition unit according to the present invention.

The output signal of the data collection unit 151 is input to the data processing unit 171. The data processing unit 171 stores the data fetched from the data collection unit 151 in a memory (not shown). A data space is formed in the memory. The data space is a two-dimensional Fourier (Fou)
rier) space. The data processing unit 171 performs a two-dimensional inverse Fourier transform on the data in the two-dimensional Fourier space to reconstruct a tomographic image of the head of the subject 31.

The data processing unit 171 is located above the control unit 161 and controls it. The display unit 181 displays the reconstructed image and various information output from the data processing unit 171. The operation unit 191 is operated by an operator, and inputs various commands and information to the data processing unit 171.

Magnet system 11, seat drive unit 11
1, a gradient drive unit 131, an RF drive unit 141, a data collection unit 151, a control unit 161, a data processing unit 171, a display unit 181, and an operation unit 191 are the same as those of the embodiment of the image photographing device according to the present invention. This is an example.

FIGS. 2 and 3 show the magnet system 1.
1 is shown together with the subject 31 in a standby state. FIG. 2 is a perspective view, and FIG. 3 is a side view showing a part in cross section.
As shown in FIG.
It is supported by four columns 13 provided in L.

A pit 21 is provided on the floor FL below the magnet system 11. Pit 2
A staircase 51 descending from the floor is provided in 1. The seat 43 on which the subject 31 is seated is lowered to the bottom of the pit 21 by the seat lifting mechanism 41. The seat 43 and the seat elevating mechanism 41 are configured using a non-magnetic material.

A keyboard 45 such as a musical instrument is provided in front of the subject 31. The keyboard 45 is operated by the subject 31 during photographing.
The keyboard 45 is integrated with the seat. What is operated by the subject 31 is not limited to a keyboard such as a musical instrument, but may be, for example, a keyboard of an information device or another operation tool according to the purpose of the experiment.

Also, various instruments which are operated by hand, such as writing instruments and tools, may be used. When operating such a device by hand, the keyboard 45 is replaced with a flat plate. The slab functions as a workbench. Hereinafter, an example of a keyboard will be described, but the same applies to a work table. Note that an instrument operated by foot may be used depending on the purpose of the experiment.

An elevating operation switch (switch) 47 operated by the operator 35 is provided on one of the columns 13. The raising / lowering operation switch 47 forms a part of the operation unit 191. A command based on the operation of the raising / lowering operation switch 47 is given to the seat driving unit 111 through the data processing unit 171 and the control unit 161. In addition, the signal of the raising / lowering operation switch 47 may be directly given to the seat driving unit 111.

The seat drive unit 111 raises and lowers the seat 43 via the seat lifting mechanism 41 in response to a command. That is,
At the time of photographing, the seat 43 is raised as shown in FIG. 4, and the subject 31 is carried into the photographing space together with the RF coil unit 33,
When the photographing is completed, it is lowered to the standby position shown in FIGS.

FIG. 5 shows a magnet system 11 for photographing.
The interrelationship between the test subject 31 and the RF coil unit 33 is shown together with the visual input supply device. As shown in the figure, the head of the subject 31 and the RF coil unit 33 are positioned at the center of the magnet system 11, that is, a magnet center (magn).
et center).

In the internal space of the magnet system 11,
A projection plate 71 is provided near the upper part of the RF coil unit 33. The projection plate 71 is located on the top of the head when viewed from the subject 31. The projection plate 71 is made of a translucent material. Such materials include, for example, translucent plastic (pl
optics, ground glass, and the like. The projection plate 71 is an example of the embodiment of the translucent plate in the present invention.

The projection plate 71 has an outer periphery which matches the inner periphery of the bore of the magnet system 11, and is installed at a predetermined position in the bore by an appropriate support means (not shown). The projection plate 71 partitions the internal space of the magnet system 11 up and down.

By closing the gap between the outer periphery of the projection plate 71 and the inner periphery of the bore, the partition can be made complete, whereby the noise generated when the gradient coil portion 105 is driven, Noise generated in the upper half of the system 11 can be hardly transmitted to the subject 31 side.

The visual input emitted from the projector 73 is projected on the projection plate 71 from the side opposite to the subject 31 via the reflecting mirror 75. The portion including the projector 73 and the reflecting mirror 75 is an example of the embodiment of the projection means in the present invention. As the projector 73, for example, a video projector or the like is used.

Since the projection plate 71 is translucent, the projected visual input appears on the rear surface of the projection plate 71, that is, the surface on the RF coil unit 33 side. On the inner surface of the RF coil unit 33, a reflecting mirror 77 is provided at a position corresponding to the subject 31's eyes. The reflecting mirror 77 directs the line of sight of the subject 31 to the projection plate 71. As a result, the subject 31 sees the visual input appearing on the rear surface of the projection plate 71 via the reflecting mirror 77.

Note that the reflecting mirror 77 is like a pair of spectacles.
It may be attached to one face. The reflecting mirror 77 is an example of an embodiment of the line-of-sight regulating means in the present invention. The portion including the projector 73, the reflecting mirror 75, the projection plate 71, and the reflecting mirror 77 is an example of an embodiment of the visual input supply device of the present invention.

The projector 73 is controlled by the control unit 161 and projects a predetermined visual input onto the projection plate 71.
As the visual input, for example, a picture such as a photograph, a picture, a color, a figure, or a character, or light illuminating the inside of the bore, or a combination thereof is projected as a still image or a moving image. Note that the video may be a live video of the situation outside the magnet system 11.

Visual input suitable for the purpose is used. For the purpose of comforting the subject 31, images such as photographs and paintings are projected. When photographing the brain function of the subject 31, images such as photographs, paintings, colors, figures, characters, and the like for giving an intended visual stimulus are used. When illuminating the bore, uniform light is used. Subject 3
In order to solve the anxiety of the first, the magnet system 11
A live image showing the external situation of the projector is projected.

Since the projection plate 71 is near the top of the subject 31, most of the visual field of the subject 31 is occupied by visual input. Since the visual input is an image or the like projected by the projector 73 and has nothing to do with the physical structure of the magnet system 11, the subject 31 who is watching it
Does not feel a feeling of blockage even in the internal space of the magnet system 11. That is, the feeling of obstruction of the subject 31 can be removed. In addition, a device that supplies a visual input to the subject 31 has a simple configuration including a projector 73, a reflecting mirror 75, a translucent projecting plate 71, and a reflecting mirror 77.

An image projected on the projection plate 71 is, for example, as shown in FIG.
As shown in the figure, a CCD camera (Charge Coup)
The image may be an image at hand of the subject 31 captured by the Led Device camera 81. CCD camera 8
1 is an example of an embodiment of a video photographing means according to the present invention. The image captured by the CCD camera 81 is subjected to predetermined image processing by an image processing unit 83 and then projected by a projector 73. Image processing unit 83, projector 73, and reflector 75
The portion consisting of is an example of an embodiment of the projection means in the present invention.

The video processing unit 83 controls the visual input to the subject 31 so that the visual input to the subject 31 becomes an image as if the subject 31 is looking at the hand.
Adjust the left and right direction. This makes it easy for the subject 31 to perform the keyboard operation correctly.

The image photographed by the CCD camera 81 is shown in FIG.
As shown in FIG. 7, the image at hand, which is a mirror image, reflected on the mirror 85 may be used. By doing so, the CCD camera 81 can be made farther from the magnetic field than that shown in FIG. 6, and the effect of the operation of the CCD camera 81 on the magnetic field and / or the effect of the magnetic field on the CCD camera 81 can be reduced. Can be reduced.

The portion comprising the mirror 75 and the CCD camera 81 is an example of the embodiment of the mirror image photographing means in the present invention. Image processing unit 83, projector 73, and reflector 75
The portion consisting of is an example of an embodiment of the projection means in the present invention.

Also in this apparatus, the video processing unit 83 controls the vertical and / or horizontal orientation of the image so that the visual input to the subject 31 becomes an image as if the subject 31 were looking at the hand. Make adjustments. This makes it easy for the subject 31 to perform a correct keyboard operation.

As shown in FIG. 8, the mirror 85 is attached to the end face of the magnet system 11 facing the keyboard 45, and a CCD camera provided on the opposite side of the keyboard 45 from the image on the mirror 85. You may make it image | photograph by 81.

The arrangement of the mirror 85 and the CCD camera 81 is more preferable than the arrangement shown in FIG. 7 in that the mirror 85 does not hinder the movement of the hand of the subject 31. Further, the CCD camera 81 is more preferable than the arrangement shown in FIG. 6 in that the CCD camera 81 does not interfere with the movement of the hand of the subject 31.

The operation of the present apparatus will be described. The operator 35
First, the subject 3 is placed on the seat 43 descending into the pit 21.
1 is seated and its head is accommodated in the RF coil unit 33. Next, the switch 47 is operated to operate the seat elevating mechanism 41, the seat 43 is raised, and the seat 43 is transported to the photographing position shown in FIG.

Next, the operator 35 operates the operation unit 191 to start photographing. The shooting proceeds under the control of the control unit 161. FIG. 9 shows an example of a pulse sequence used for magnetic resonance imaging. This pulse sequence has a spin echo (SE: S
3 is a pulse sequence of the “pin Echo” method.

That is, (1) is a sequence of 90 ° pulse and 181 ° pulse for RF excitation in the SE method, and (2), (3), (4) and (5) are slice gradients, respectively. Gs, readout gradient G
r, phase encoding gradient Gp and spin echo M
This is a sequence of R. Note that a 90 ° pulse and 18
Each 1 ° pulse is represented by a center signal. The pulse sequence proceeds from left to right along the time axis t.

As shown in the drawing, 90 ° excitation of spin is performed by a 90 ° pulse. At this time, the slice gradient G
s is applied to perform selective excitation for a predetermined slice. After a predetermined time from the 90 ° excitation, 180 ° excitation by a 180 ° pulse, that is, spin inversion is performed. Also at this time, the slice gradient Gs is applied, and selective inversion is performed for the same slice.

During the period between the 90 ° excitation and the spin inversion, the readout gradient Gr and the phase encode gradient Gp
Is applied. A spin dephase is performed by the readout gradient Gr. The phase encoding of the spin is performed by the phase encoding gradient Gp.

After the spin inversion, the spin is rephased by the readout gradient Gr to generate a spin echo MR. The spin echo MR is an RF signal having a symmetric waveform with respect to the echo center. The center echo occurs after TE (echo time) from the 90 ° excitation. The spin echo MR is collected by the data collection unit 171 as view data. Such a pulse sequence has a period TR (repetit
(ion time) is repeated 64 to 512 times. The phase encoding gradient Gp is changed at each repetition,
Perform different phase encoding each time. by this,
View data of 64 to 512 views is obtained.

FIG. 10 shows another example of the pulse sequence for magnetic resonance imaging. This pulse sequence is a pulse sequence based on a gradient echo (GRE) method.

That is, (1) is the RF in the GRE method.
A sequence of α ° pulses for excitation, (2)
(3), (4) and (5) are the sequences of the slice gradient Gs, readout gradient Gr, phase encode gradient Gp and gradient echo MR, respectively. The α ° pulse is represented by the center signal.
The pulse sequence proceeds from left to right along the time axis t.

As shown in the figure, α ° excitation of the spin is performed by the α ° pulse. α is 90 or less. At this time, a slice gradient Gs is applied, and selective excitation for a predetermined slice is performed.

After α ° excitation, the phase encode gradient Gp
Performs phase encoding of the spin. next,
First, the spin is dephased by the readout gradient Gr, and then the spin is rephased to generate a gradient echo MR. The gradient echo MR is
The resulting RF signal has a symmetrical waveform with respect to the echo center. The center echo occurs TE after α ° excitation.

The gradient echo MR is collected by the data collection unit 171 as view data. Such a pulse sequence is repeated 64 to 512 times in the period TR. Phase encoding gradient Gp for each iteration
And perform different phase encoding each time. As a result, view data of 64 to 512 views is obtained.

View data obtained by the pulse sequence shown in FIG. 9 or FIG. 10 is collected in the memory of the data processing unit 171. Note that the pulse sequence is not limited to the SE method or the GRE method. For example, a fast spin echo (FSE) is used.
Method and echo planar imaging (EPI: EchoP
Needless to say, other appropriate techniques such as LAN imaging may be used.

The data processing unit 171 converts the view data into 2
The tomographic image of the head of the subject 31 is reconstructed by performing the dimensional inverse Fourier transform. The reconstructed image is displayed on the display unit 181 as a visible image.

Such photographing is performed while supplying a predetermined visual input to the subject 31, and the function of the brain of the subject 31 is examined based on the obtained image. Alternatively, an image is taken while performing a predetermined keyboard operation, and a brain function corresponding to the keyboard operation is examined. At this time, if the operation is performed while watching the image at hand as shown in FIG. 6 or FIG. 7, it is possible to perform an accurate keyboard operation. Since the visual input or the keyboard operation is performed in a state where the upper body of the subject 31 is raised, the operation can be performed in a state similar to a state where a human normally acts. As a result, the function of the brain during normal behavior can be correctly photographed.

In addition to the case where the subject 31 performs the visual input or the operation of the finger as described above, for example,
Even when photographing the state of the brain when performing linguistic pronunciation, singing, recalling thoughts, etc., the function of the brain during normal behavior can be photographed correctly. The same applies to the case where the behavior of the brain in response to stimulation of sensory organs such as hearing, taste, smell, and touch is photographed.

The above is an example in which the magnet system is a vertical bore magnet system. However, the magnet system is not limited to the vertical bore magnet system.
A visual input supply device similar to the above can also be provided for a magnetic resonance imaging apparatus employing a horizontal bore magnet system in which the bore faces in the horizontal direction.

FIG. 11 shows a configuration example of a magnet system portion in such a magnetic resonance imaging apparatus. In this figure, the same parts as those shown in FIG. 5 are denoted by the same reference numerals, and description thereof will be omitted. The internal space of the horizontal bore magnet system is a columnar space having a horizontal central axis. The subject 31 is placed on the support plate 79 and carried into and out of the internal space of the magnet system. The RF coil unit 33 is attached to a support plate. The projection plate 71 may be displaced in conjunction with the support plate 79.

Although the present invention has been described with reference to an example in which the image photographing apparatus is a magnetic resonance photographing apparatus, the image photographing apparatus is not limited to a magnetic resonance photographing apparatus, but includes a signal acquisition unit having a space for accommodating a photographing target. For example, PET (Posit
ron Emission Tomography, gamma camera (γ camera), X-ray CT (Comp
Other types of image photographing apparatuses, such as a tomography apparatus, may be used.

Also, the example in which the object to be photographed is a human being has been described, but the object to be photographed is not limited to humans, and is a living body having a visual sense in a direction substantially orthogonal to the body axis direction, such as a primate. Good.

[0067]

As described above in detail, according to the present invention, a visual input supply device having a simple configuration for eliminating a feeling of blockage when facing a wall, and a signal provided with such a visual input supply device An acquisition device and an image capturing device can be realized.

[Brief description of the drawings]

FIG. 1 is a block diagram of a device according to an example of an embodiment of the present invention.

FIG. 2 is a perspective view showing an external appearance of a magnet system of the apparatus shown in FIG. 1 together with a photographing target in a standby state.

FIG. 3 is a side view showing an external appearance of a magnet system of the apparatus shown in FIG. 1, together with a photographing target and an operator in a standby state.

FIG. 4 is a perspective view showing an appearance of a magnet system of the apparatus shown in FIG. 1 together with a photographing target in a photographing state.

FIG. 5 is a diagram illustrating a relationship between an imaging target and a magnet system in an imaging state.

FIG. 6 is a diagram illustrating a relationship between an imaging target and a magnet system in an imaging state.

FIG. 7 is a diagram illustrating a relationship between an imaging target and a magnet system in an imaging state.

FIG. 8 is a diagram illustrating a relationship between an imaging target and a magnet system in an imaging state.

FIG. 9 is a schematic diagram showing an example of a pulse sequence executed by the device shown in FIG.

FIG. 10 is a schematic diagram showing an example of a pulse sequence executed by the device shown in FIG.

FIG. 11 is a diagram illustrating a relationship between a shooting target and a horizontal bore magnet system in a shooting state.

[Explanation of symbols]

 Reference Signs List 11 magnet system 31 imaging target 33 RF coil unit 71 projection plate 73 projector 75, 77 reflecting mirror 81 CCD camera 83 image processing unit 85 mirror 101 main magnetic field magnet unit 105 gradient coil unit 111 seat driving unit 131 gradient driving unit 141 RF drive Unit 151 Data collection unit 161 Control unit 171 Data processing unit 181 Display unit 191 Operation unit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Nobuyuki Tasaka Inventor F-term (reference) 127 7-4 Asahigaoka 4-chome, Hino-shi, Tokyo 4C096 AA18 AA20 AB47 AD19 CA16 CA17 CA65 FC10 5C022 AA08 AB68 AC00 AC09 AC51

Claims (23)

[Claims] 1. A translucent plate facing a vertex of an object in a space for accommodating an object to which visual input is supplied; and projecting means for projecting the visual input to the plate from a side opposite to the object. A line-of-sight regulating means for directing the line of sight of the object to the plate,
A visual input supply device comprising: 2. The visual input supply device according to claim 1, wherein said line-of-sight regulating means has a reflecting mirror. 3. An image capturing means for capturing an image of a hand of the object, wherein the projecting means projects the image such that the image is input to a visual sense of the object as a normal vision image. The visual input supply device according to claim 1 or 2. 4. A mirror image photographing means for photographing a mirror image of an image at hand of the object, wherein the projecting means projects the mirror image so that the mirror image is input as a stereoscopic image to the sight of the object. The visual input supply device according to claim 1 or 2, wherein 5. The space according to claim 1, wherein the space is a columnar space having a central axis along the body axis of the object.
The visual input supply device according to claim 1. 6. The visual input supply device according to claim 5, wherein the direction of the central axis is a vertical direction. 7. The visual input supply device according to claim 5, wherein the direction of the central axis is a horizontal direction. 8. A signal acquisition means having a space for accommodating a signal acquisition target, a translucent plate facing the vertex of the target in the space, and projecting visual input on the plate from an opposite side to the target. Projection means, and a line-of-sight regulating means for directing the line of sight of the object to the plate,
A signal acquisition device comprising: 9. The signal acquisition device according to claim 8, wherein said line-of-sight regulating means has a reflecting mirror. 10. An image capturing means for capturing an image of a hand of the object, wherein the projecting means projects the image such that the image is input to the visual sense of the object as a stereoscopic image. The signal acquisition device according to claim 8 or 9. 11. A mirror image photographing means for photographing a mirror image of an image at hand of the object, wherein the projecting means projects the mirror image so that the mirror image is input to the visual sense of the object as a stereoscopic image. The signal acquisition device according to claim 8 or 9, wherein 12. The signal acquisition according to claim 8, wherein the space is a columnar space having a central axis along the body axis of the object. apparatus. 13. The direction of the central axis is a vertical direction,
The signal acquisition device according to claim 12, wherein: 14. The direction of the central axis is a horizontal direction,
The signal acquisition device according to claim 12, wherein: 15. The signal acquisition device according to claim 8, wherein the signal acquisition unit acquires a medical signal using magnetic resonance. 16. An image photographing means having a space for accommodating an object to be photographed, a translucent plate facing the vertex of the object in the space, and projecting a visual input to the plate from a side opposite to the object. Projection means, and line-of-sight regulating means for directing the line of sight of the target to the plate,
An image photographing apparatus comprising: 17. The line-of-sight regulating means has a reflector.
17. The image photographing apparatus according to claim 16, wherein: 18. The apparatus according to claim 18, further comprising: a video image capturing unit that captures an image of a hand of the target, wherein the projecting unit projects the video so that the video is input to the visual sense of the target as a stereoscopic video. The magnetic resonance imaging apparatus according to claim 16 or 17. 19. A mirror image photographing means for photographing a mirror image of an image at hand of the object, wherein the projecting means projects the mirror image such that the mirror image is input to the visual sense of the object as a stereoscopic image. The magnetic resonance imaging apparatus according to claim 16 or 17, wherein 20. The image photographing apparatus according to claim 16, wherein the space is a columnar space having a central axis along a body axis of the object. apparatus. 21. The direction of the central axis is a vertical direction,
The image photographing apparatus according to claim 20, wherein: 22. The direction of the central axis is a horizontal direction,
The image photographing apparatus according to claim 20, wherein: 23. The image photographing apparatus according to claim 16, wherein said image photographing means photographs a medical image using magnetic resonance.