JP6576639B2 - Electronic glasses and control method of electronic glasses - Google Patents

Description

  The present invention relates to electronic glasses and a method for controlling electronic glasses. More specifically, the present invention relates to electronic glasses capable of easily manipulating a stereoscopic image and a method for controlling the electronic glasses.

  Conventionally, various development studies have been conducted on electronic glasses and methods for controlling electronic glasses. For example, Patent Document 1 (Japanese Patent Laid-Open No. 2008-310275) discloses a digital eyeglass system equipped with functions of a digital video movie, a digital camera, and a mobile phone.

  Patent Document 2 (Japanese Unexamined Patent Application Publication No. 2007-328071) discloses eyeglasses for low vision people that do not change in shape at first glance and that do not require a switching operation when used. The eyeglasses for low-sighted persons described in Patent Document 2 are fixed to the frame part, and are provided on the correction lens located in front of the wearer's face when the frame part is mounted, and on the frame part or the correction lens, and the close-up photographing of the front face direction is possible. An imaging camera, a liquid crystal display unit that outputs an image obtained by the imaging camera, and an aspherical magnifying lens attached to the liquid crystal display unit.

Further, Patent Document 3 (Japanese Patent Laid-Open No. 2010-55038) discloses a device that compensates for the visual acuity for a weakly sighted person, which is not uncomfortable as compared with a conventional glasses-type display.
The sunglasses-type digital eyeglass system described in Patent Document 3 is a small electronic display that displays an image placed in front of a user's eyes, and expands to the retina of a person's eye who sees the image displayed on the electronic display. It consists of an optical device for display, sunglasses for mounting the electronic display and the optical device, a camera for capturing an image on the electronic display, and a video control device for the user. An electronic display and an optical device can be easily attached to a spectacle frame of sunglasses with design.

  In Patent Document 4 (Japanese Patent Laid-Open No. 9-192164), a pair of correction lenses, at least a pair of TV cameras, a liquid crystal display presented in front of the eyes, and a stereo image captured by the pair of TV cameras are described. A frame buffer memory for temporarily storing, an image processing means for extracting and emphasizing a stereo image stored in the frame buffer memory by three-dimensional image analysis processing, and an edge emphasis figure processed by the image processing means An eyeglass device for a weak eyesight provided with display control means for displaying on the liquid crystal display is disclosed.

  Further, Patent Document 5 (Japanese Patent Laid-Open No. 2003-134420) provides a dark room with a small liquid crystal display device in a part of a region that can be seen with the naked eye by wearing glasses, and sees an image displayed on the small liquid crystal display device. Means and other parts are disclosed for hybrid electronic spectacles characterized by means of looking at the outside world.

Further, Patent Document 6 (Japanese Patent Laid-Open No. 2014-155207) discloses a head-mounted device that allows a user to simultaneously view a real image of an object in the field of view and information that does not appear in the appearance of the object without moving the line of sight. A type display device is disclosed.
The head-mounted display device described in Patent Document 6 is a head-mounted display device that allows a user to visually recognize an image and an outside scene at the same time, and is information that does not appear in the appearance of an object with respect to an object included in the outside scene. The apparatus includes a superimposition information generation unit that generates superimposition information that is information for superimposing and displaying certain invisible information, and an image display unit that allows the user to visually recognize the superimposition information as the video.

Patent Document 7 (Japanese Patent Application Laid-Open No. 2012-58733) discloses a special illumination video stereoscopic microscope that can use special effects with simple illumination.
The special illumination surgical video stereoscopic microscope described in Patent Document 7 has a video imaging unit for observing a specimen under special illumination, particularly illumination including excitation light, particularly for observing a specimen in fluorescence. A special illumination surgical video stereoscopic microscope having at least one video stereoscopic observation beam having a three-dimensional partial beam consisting of two partial beams, wherein the video imaging unit has a half of a chip for acquiring a video stereoscopic image. It includes at least one video chip that is a combination of two, and each of the halves is assigned a partial luminous flux, has a different spectral sensitivity, and is composed of a plurality of photoelectric sensors (pixels). .

JP 2008-310275 A JP 2007-328071 A JP 2010-55038 A Japanese Patent Laid-Open No. 9-192164 JP 2003-134420 A JP 2014-155207 A JP 2012-58733 A

  However, in any of Patent Documents 1 to 7, the operability is low, and it is difficult to adjust the image display magnification while confirming the surrounding environment. Further, there is a need for the user to adjust the display magnification of only a part of the displayed image.

  An object of the present invention is to provide an electronic spectacle and an electronic spectacle control method capable of adjusting a display magnification of only a part of an image.

(1)
Electronic glasses according to one aspect are electronic glasses that can be worn on the head of a human body, and include an imaging device that captures an object and one or more images that display at least one of two-dimensional and three-dimensional images by the imaging device. The display device and a control unit that adjusts the display magnification of only a part of the image displayed on the display device.

In this case, the object is imaged by the imaging device, and at least one of a two-dimensional image and a three-dimensional image is displayed on the display device. Further, the control unit can adjust the display magnification of only a part of the image. As a result, since the magnification of only a part of the image can be enlarged or reduced, the user can easily recognize the fine part or the whole part.
Further, since the display magnification of only a part of the image is adjusted, the surrounding environment can be recognized by the periphery of only a part of the image.
In particular, in the medical field, there are cases where it is desired to recognize the surrounding situation while expanding only a part. The present invention is effective in this field.

(2)
The electronic glasses according to a second aspect of the present invention are the electronic glasses according to one aspect, in which the control unit does not need to adjust the display magnification around the center of the image of the display device and adjust the display magnification around the center. .

  In this case, the display magnification at the center of the image can be enlarged or reduced, and the display magnification around the center is 1. As a result, it is possible to recognize the entire feature by checking the surroundings, and it is possible to recognize a fine part or to recognize the whole by checking the central part.

(3)
The electronic glasses according to the third invention are electronic glasses according to one aspect or the second invention, and the display device may be an immersive display.

  In this case, since the display device is composed of an immersive display, the image can be completely viewed. Also, the user can concentrate on viewing the image.

(4)
An electronic spectacle according to a fourth aspect of the present invention is the electronic spectacle according to the second or third aspect of the present invention, including an operation unit that operates an image displayed on the display device, and the operation unit determines a distance to a part of the human body. The control unit may include a depth sensor to be measured, and the control unit may adjust the display magnification of the central part according to the depth sensor and display a part of the human body or a part of the human body around the central part.

In this case, the distance to a part of the human body is measured by the depth sensor. The display magnification at the center of the image displayed on the display device is adjusted by the control unit according to the measurement result.
In addition, a part of the human body itself or an outline of a part of the human body is displayed around the center.
As a result, the user can adjust the display magnification of the central portion by moving a part of the human body while checking the periphery of the central portion. That is, it is possible to enlarge or reduce the central image by checking the surroundings.

(5)
An electronic spectacle according to a fifth aspect of the present invention is the electronic spectacle according to the first aspect, the second to fourth aspects of the invention, and includes an operation unit that operates an image displayed on the display device. The operation unit includes a voice recognition unit and a bone. The control unit may include at least one of the conduction recognition unit, and the control unit may adjust the display magnification of the image according to at least one of the voice recognition unit and the bone conduction recognition unit.

In this case, since the operation unit includes at least one of the voice recognition unit and the bone conduction recognition unit, the user can operate the operation unit by voice even when both hands cannot be used. Further, by using bone conduction, the operation unit can be operated even in a noisy environment or a quiet environment. Therefore, the display magnification of the image can be adjusted.
The voice recognition unit and the bone conduction recognition unit may be formed so as to be removable from the electronic glasses.

(6)
According to a sixth aspect of the electronic glasses according to the sixth aspect, in the electronic glasses according to the second to fifth aspects, the control unit may have a digital zoom function for the image.

  In this case, since the control unit has a digital zoom function, it can display a large object in a small space.

(7)
According to a seventh aspect of the present invention, in the electronic glasses according to one aspect, the second to sixth aspects of the invention, the imaging device may include an irradiation unit that emits infrared rays and an infrared camera.

  In this case, imaging can be performed while irradiating infrared rays with an infrared camera, so that the blood vessels of the human body can be clearly seen.

(8)
An electronic spectacles control method according to another aspect is a control method of electronic spectacles that can be worn on the head of a human body, and includes an imaging step of imaging an object, and at least one of two-dimensional and three-dimensional images obtained by the imaging step. Including one or more display processes for displaying the image and a control process for adjusting the display magnification of only a part of the image displayed in the display process.

In this case, the object imaged in the imaging process is displayed in at least one of two dimensions or three dimensions. Further, in the control process, the display magnification of the image is adjusted according to the operation.
As a result, it is possible to display a detailed portion in a large size. Therefore, the user can easily view a fine image that is difficult to see by adjusting the display magnification by an operation.

It is a typical external appearance front view which shows an example of the basic composition of the electronic spectacles concerning this Embodiment. It is a typical appearance perspective view showing an example of electronic glasses. It is a schematic diagram which shows an example of a structure of the control unit of an operation system. It is a flowchart which shows the flow of a process in an operation system. It is a schematic diagram which shows an example of the image displayed with a pair of immersive display. It is a typical perspective view for demonstrating the detection area | region of an infrared rays detection unit, and the virtual display area | region of a pair of immersive display. FIG. 7 is a top view of FIG. 6. FIG. 7 is a side view of FIG. 6. It is a schematic diagram which shows an example of the operation area | region in a detection area, and a gesture area | region. It is a schematic diagram which shows an example of the operation area | region in a detection area, and a gesture area | region. It is a flowchart for demonstrating a calibration process. It is a schematic diagram which shows an example of finger recognition. It is a flowchart which shows an example of the process of finger recognition. It is a schematic diagram which shows an example of palm recognition. It is a schematic diagram which shows an example of thumb recognition. It is a schematic diagram which shows an example of a display of the immersive display of electronic spectacles. It is a schematic diagram which shows an example of a display of the immersive display of electronic spectacles. It is a flowchart which shows an example of a process of the electronic glasses at the time of treatment. FIG. 12 is a schematic diagram illustrating another example of the operation region described in FIGS. 9 to 11. FIG. 12 is a schematic diagram illustrating another example of the operation region described in FIGS. 9 to 11. FIG. 12 is a schematic diagram illustrating another example of the operation region described in FIGS. 9 to 11. FIG. 12 is a schematic diagram illustrating another example of the operation region described in FIGS. 9 to 11. 6 is a schematic diagram illustrating another example of the electronic glasses 100. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.
The present invention is not limited to the electronic glasses described below, and can be applied to other input / output devices, display devices, televisions, monitors, projectors, and the like.

(Schematic configuration of electronic glasses)
FIG. 1 is a schematic external front view showing an example of the basic configuration of the electronic glasses 100 according to the present embodiment, and FIG. 2 is a schematic external perspective view showing an example of the electronic glasses 100.

  As shown in FIG. 1 or FIG. 2, the electronic glasses 100 is a glasses-type display device. The electronic glasses 100 are used by being worn on the user's face as will be described later.

  As shown in FIGS. 1 and 2, the electronic glasses 100 mainly include a glasses unit 200, a communication system 300, and an operation system 400.

(Glasses unit 200)
As shown in FIGS. 1 and 2, the eyeglass unit 200 includes an eyeglass frame 210, a pair of immersive displays 220, and a pair of display adjustment mechanisms 600. The spectacle frame 210 mainly includes a rim unit 211 and a temple unit 212.
A pair of immersive displays 220 is supported by the rim unit 211 of the spectacle frame 210. The rim unit 211 is provided with a pair of display adjustment mechanisms 600. Further, the rim unit 211 is provided with an infrared detection unit 410 and a unit adjustment mechanism 500. Details of the unit adjustment mechanism 500 will be described later.
The pair of display adjustment mechanisms 600 can adjust the angle and position of the pair of immersive displays 220 as will be described later. Details of the pair of display adjustment mechanisms 600 will be described later.

  In the present embodiment, the pair of immersive displays 220 is provided in the pair of display adjustment mechanisms 600 of the rim unit 211 in the electronic glasses 100. However, the present invention is not limited to this, and the rim unit 211 of the electronic glasses 100 is not limited thereto. The pair of display adjustment mechanisms 600 may be provided with lenses such as a normal sunglasses lens, an ultraviolet cut lens, or a spectacle lens, and another immersive display 220 or a pair of immersive displays 220 may be provided.

Further, the immersive display 220 may be embedded in a part of the lenses.
Further, although the pair of display adjustment mechanisms 600 are provided on the side of the immersive display 220, the present invention is not limited to this and may be provided around or inside the immersive display 220.

Further, the present embodiment is not limited to the eyeglass type, and can be used for a hat type or any other head mounted display device as long as it is a type that can be worn on the human body and disposed in the field of view of the wearer. .
Furthermore, in the present embodiment, the eyeglass-shaped electronic spectacles 100 are illustrated, but the present invention is not limited to this, and the function of the electronic spectacles 100 is included in one or a pair of barrel-shaped members. Also good. Moreover, the said lens-barrel-shaped member may be removable.

(Communication system 300)
Next, the communication system 300 will be described.
The communication system 300 includes a battery unit 301, an antenna module 302, a camera unit 303, a speaker unit 304, a GPS (Global Positioning System) unit 307, a microphone unit 308, a SIM (Subscriber Identity Module Card) unit 309, and a main unit 310.

The camera unit 303 may be provided with a CCD sensor. The speaker unit 304 may be a normal earphone or a bone conduction earphone. The SIM unit 309 may include an NFC (Near Field Communication) unit and other contact IC card units, and a non-contact IC card unit.
The microphone unit 308 may be a bone conduction microphone as well as an audio microphone, or may include both. Furthermore, the microphone unit 308 may be provided so as to be removable from the electronic glasses 100.

As described above, the communication system 300 according to the present embodiment includes at least one of the functions of a mobile phone, a smartphone, and a tablet terminal. Specifically, it includes a telephone function, an Internet function, a browser function, a mail function, an imaging function (including a recording function), and the like.
Therefore, the user can use the call function similar to that of the mobile phone by using the electronic glasses 100 with the communication device, the speaker, and the microphone. Further, since it is a glasses type, it is possible to make a call without using both hands.

  In this embodiment, the telephone function, the Internet function, the browser function, the mail function, the imaging function (including the recording function), and the like are included. You may have an external apparatus which has.

  Further, an image sharing function capable of displaying an image of another electronic glasses 100 using the communication function may be provided. That is, it may have a function of outputting a real-time image and sharing the image with other electronic glasses 100.

(Operation system 400)
Subsequently, the operation system 400 includes an infrared detection unit 410, a gyro sensor unit 420, an acceleration detection unit 430, and a control unit 450. The infrared detection unit 410 mainly includes an infrared irradiation element 411 and an infrared detection camera 412.

In this embodiment, the infrared irradiation element 411 and the infrared detection camera 412 are used. However, the present invention is not limited to this, and a near infrared irradiation element and a near infrared detection camera may be provided.
Furthermore, it is not limited to near infrared rays and infrared rays, and other frequency irradiation elements and other frequency detection cameras may be provided. In addition, irradiation elements capable of setting specific wavelengths and specific wavelength settings are possible. A simple detection camera may be provided.

(Unit adjustment mechanism 500)
As shown in FIG. 2, the unit adjustment mechanism 500 can adjust the angle of the infrared detection unit 410. Specifically, the unit adjustment mechanism 500 has a structure that can adjust the angle of the infrared detection unit 410 about the horizontal axis of the arrow V5 and the vertical axis of the arrow H5.

Unit adjustment mechanism 500 moves and adjusts infrared detection unit 410 in the directions of arrows V5 and H5 in accordance with instructions from control unit 450.
For example, when a predetermined gesture is recognized by the control unit 450, the unit adjustment mechanism 500 may be operated at a predetermined angle. In that case, the user can adjust the angle of the infrared detection unit 410 by performing a predetermined gesture.

  In the present embodiment, the unit adjustment mechanism 500 is operated by the control unit 450. However, the present invention is not limited to this, and the adjustment unit 520 in FIG. It is good also as being able to move and adjust in this direction.

  Next, the configuration, process flow and concept of the operation system 400 will be described. FIG. 3 is a schematic diagram illustrating an example of the configuration of the control unit 450 of the operation system 400.

  As shown in FIG. 3, the control unit 450 includes an image sensor calculation unit 451, a depth map calculation unit 452, an image processing unit 453, an anatomical recognition unit 454, a gesture data recording unit 455, a gesture identification unit 456, calibration data. Recording unit 457, composition operation unit 458, application software unit 459, event service unit 460, calibration service unit 461, display service unit 462, graphic operation unit 463, display operation unit 464, 6-axis drive driver unit 465, infrared irradiation unit 466, an infrared imaging unit 467, a voice recognition unit 468, and a bone conduction device unit 469.

  Note that the control unit 450 need not include all of the above, and may include one or more units as necessary. For example, the gesture data recording unit 455 and the calibration data recording unit 457 may be arranged on the cloud, and the synthesis operation unit 458 may not be particularly provided.

  Next, FIG. 4 is a flowchart showing a flow of processing in the operation system 400, and FIG. 5 is a schematic diagram showing an example of an image displayed on a pair of immersive displays.

  First, as shown in FIG. 4, target data is acquired from the infrared detection unit 410, and depth calculation is performed by the depth map calculation unit 452 (step S1). Next, the external image data is processed by the image processing unit 453 (step S2).

  The anatomical recognition unit 454 then identifies anatomical features from the contour image data processed in step S2 based on the standard human body structure. Thereby, the external shape of a human hand, arm, finger, or the like is recognized (step S3).

Further, the gesture identification unit 456 identifies the gesture based on the anatomical features obtained in step S3 (step S4).
The gesture identification unit 456 refers to the gesture data recorded in the gesture data recording unit 455 and identifies the gesture from the outer shape where the anatomical features are identified. Note that the gesture identification unit 456 refers to the gesture data from the gesture data recording unit 455. However, the gesture identification unit 456 is not limited to referencing, and may refer to other arbitrary data without referring to it at all. It may be processed.
With the above processing, the gesture of the hand H1 is recognized as shown in FIG.

Subsequently, the application software unit 459 and the event service unit 460 perform a predetermined event according to the gesture determined by the gesture identification unit 456 (step S5).
For example, it is the setting of the region portion (dotted line in the figure) of a part of the image ZM after the hand H1 in FIG.
In addition, as shown in FIG. 5B, the determined part of the image ZM is displayed enlarged or reduced according to the gesture. Specifically, compared with FIG. 5A, in FIG. 5B, the plant is enlarged and displayed.

Finally, the display service unit 462, the calibration service unit 461, the graphic operation unit 463, the display operation unit 464, and the composition operation unit 458 are displayed on the immersive display 220 as shown in FIG. In the surrounding image region OZM, a display indicating the outline of the hand H1 indicating a gesture is performed. Further, after the process of step S5, image virtual display is performed (step S6).
In addition, in accordance with the processing in step S5, a 3D solid model DD, which will be described later, is displayed.

  The 6-axis drive driver unit 465 always detects signals from the gyro sensor unit 420 and the acceleration detection unit 430 and transmits the posture state to the display calculation unit 464.

When the user wearing the electronic glasses 100 tilts the electronic glasses 100, the 6-axis drive driver unit 465 always receives signals from the gyro sensor unit 420 and the acceleration detection unit 430, and controls display of images. Do. In this control, the display of the image may be kept horizontal, or the display of the image may be adjusted according to the inclination.
Further, the 6-axis drive driver unit 465 suppresses blurring of the image ZM. That is, in the case of an image display reduced in the image ZM, the effect of blur correction is not required to be large, but in the case of an image display enlarged in the image ZM, the image ZM is always performed unless blur correction is performed. This is because the problem is caused by the user being uncomfortable.

(Example of detection area and virtual display area)
Next, the relationship between the detection area of the infrared detection unit 410 of the operation system 400 and the virtual display area of the pair of immersive displays 220 will be described.
6 is a schematic perspective view for explaining a detection region of the infrared detection unit 410 and a virtual display region of the pair of immersive displays 220, FIG. 7 is a top view of FIG. 6, and FIG. FIG. 7 is a side view of FIG. 6.

  In the following, for convenience of explanation, as shown in FIG. 6, a three-dimensional orthogonal coordinate system including an x-axis, a y-axis, and a z-axis is defined. The x-axis arrows in the following figures indicate the horizontal direction. The y-axis arrow points in the vertical direction or the long axis direction of the user's body. The z-axis arrow points in the depth direction. The z-axis positive direction refers to the direction of greater depth. The direction of each arrow is the same in other figures.

As shown in FIGS. 6 to 8, the electronic spectacles 100 has a three-dimensional space detection area (3D space) 4103 </ b> D that can be detected by the infrared detection unit 410 of the operation system 400.
The three-dimensional space detection area 4103D is formed of a conical or pyramidal three-dimensional space from the infrared detection unit 410.

That is, the infrared detection unit 410 can detect the infrared rays emitted from the infrared irradiation element 411 by the infrared detection camera 412, and thus can recognize a gesture in the three-dimensional space detection region 4103D.
In the present embodiment, one infrared detection unit 410 is provided. However, the present invention is not limited to this, and a plurality of infrared detection units 410 may be provided, or one infrared irradiation element 411 may be provided. A plurality of detection cameras 412 may be provided.

Subsequently, as shown in FIGS. 6 to 8, the pair of immersive displays 220 is not a part of the electronic glasses 100 actually provided to the user, but a virtual image display area 2203 </ b> D that is located away from the electronic glasses 100. And visually recognized as a virtual display with a depth. The depth corresponds to the thickness in the depth direction (z-axis direction) of the virtual three-dimensional shape of the virtual image display area 2203D. Therefore, the depth is provided according to the thickness of the virtual three-dimensional shape in the depth direction (z-axis direction).
That is, although actually displayed on the immersive display 220 of the electronic glasses 100, the user recognizes the image of the right eye in the three-dimensional space area 2203DR by the immersive display 220 on the right eye side, and the image of the left eye is on the left eye side. The immersive display 220 recognizes the three-dimensional space area 2203DL. As a result, both recognized images are synthesized in the user's brain, and can be recognized as a virtual image in the virtual image display area 2203D.

  The virtual image display area 2203D includes a frame sequential method, a polarization method, a linear polarization method, a circular polarization method, a top-and-bottom method, a side-by-side method, an anaglyph method, a lenticular method, and a parallax barrier method. The display may be performed using any one of a liquid crystal parallax barrier method, a two-parallax method, and a multi-parallax method using three or more parallaxes.

  In the present embodiment, the virtual image display area 2203D has a spatial area shared with the three-dimensional space detection area 4103D. In particular, as shown in FIGS. 6 and 7, since the virtual image display area 2203D exists inside the three-dimensional space detection area 4103D, the virtual image display area 2203D serves as a shared area.

The shape and size of the virtual image display area 2203D can be arbitrarily adjusted by the display method on the pair of immersive displays 220.
Moreover, as shown in FIG. 8, although the case where the infrared detection unit 410 is arrange | positioned upwards (y-axis positive direction) rather than a pair of immersive display 220 is demonstrated, a perpendicular direction (y-axis direction) is demonstrated. On the other hand, even if the arrangement position of the infrared detection unit 410 is below the immersive display 220 (in the negative y-axis direction) or at the same position as the immersive display 220, the virtual image display area 2203D is similarly the tertiary. It has a space area shared with the original space detection area 4103D.

(Operation area and gesture area)
Next, the operation area and the gesture area in the detection area will be described. 9 and 10 are schematic diagrams illustrating an example of an operation area and a gesture area in the detection area.

  First, as shown in FIG. 9, in general, the user horizontally moves both hands around the shoulder joints of the right shoulder joint RP and the left shoulder joint LP, so that the area where both hands can move is surrounded by a dotted line. The moving area L and the moving area R become the same.

  Also, as shown in FIG. 10, in general, the user vertically moves both hands around both shoulder joints of the right shoulder joint RP and the left shoulder joint LP, so that the area where both hands can move is surrounded by a dotted line. The moving area L and the moving area R become the same.

  That is, as shown in FIG. 9 and FIG. 10, the user has a spherical shape (having an arch-shaped curved surface convex in the depth direction) with both hands rotating around the right shoulder joint RP and the left shoulder joint LP, respectively. Can be moved.

Next, the three-dimensional space detection area 4103D by the infrared detection unit 410, the area where the virtual image display area may exist (the virtual image display area 2203D is illustrated in FIG. 9), the arm movement area L, and the movement area R are combined. A space area that overlaps with the selected area is set as the operation area 410c.
Further, a portion other than the operation region 410c in the three-dimensional space detection region 4103D and a portion overlapping with the combined region of the arm movement region L and the movement region R is set as the gesture region 410g.

  Here, the operation region 410c has a three-dimensional shape in which the surface farthest in the depth direction is a curved surface curved in an arch shape convex in the depth direction (z-axis positive direction), whereas the virtual image display region 2203D has a depth of The surface farthest in the direction has a three-dimensional shape that is a plane. Thus, due to the difference in the shape of the surface between the two regions, the user feels uncomfortable in the operation. In order to remove the uncomfortable feeling, adjustment is performed by a calibration process. Details of the calibration process will be described later.

(Description of calibration)
Next, the calibration process will be described. FIG. 11 is a flowchart for explaining the calibration process.

As shown in FIGS. 9 and 10, when the user tries to move his / her hand along the virtual image display area 2203D, the user needs to move along a plane without assistance. Therefore, a calibration process is performed to facilitate the operation in the virtual image display area 2203D by a recognition process described later.
In the calibration process, the finger length, hand length, and arm length that are different for each user are also adjusted.

Hereinafter, description will be made with reference to FIG. First, the user wears the electronic glasses 100 and extends both arms to the maximum. As a result, the infrared detection unit 410 recognizes the maximum area of the operation area 410c (step S11).
That is, since the length of the finger, the length of the hand, and the length of the arm, which are different for each user, are different depending on the user, the operation area 410c is adjusted.

  Next, in the electronic glasses 100, the display position of the virtual image display area 2203D is determined (step S12). That is, if the virtual image display area 2203D is arranged outside the operation area 410c, the operation by the user becomes impossible, so the virtual image display area 2203D is arranged inside the operation area 410c.

Subsequently, the maximum area of the gesture area 410g is set at a position within the three-dimensional space detection area 4103D of the infrared detection unit 410 of the electronic glasses 100 and not overlapping the display position of the virtual image display area 2203D (step S13).
The gesture region 410g is preferably arranged so as not to overlap the virtual image display region 2203D and has a thickness in the depth direction (z-axis positive direction).

  In the present embodiment, the operation area 410c, the virtual image display area 2203D, and the gesture area 410g are set by the above method.

  Next, calibration of the virtual image display area 2203D in the operation area 410c will be described.

  When it is determined that the user's finger, hand, or arm exists outside the virtual image display area 2203D in the operation area 410c, rounding is performed so that the user's finger, hand, or arm exists inside the virtual image display area 2203D (step) S14).

As shown in FIGS. 9 and 10, in the vicinity of the center of the image virtually displayed on the immersive display 220, if both arms are extended to the maximum, both hands remain in the virtual image display area 2203 </ b> D. Without any deviation in the depth direction (z-axis positive direction). Further, at the end of the virtually displayed image, it is not determined that both hands are present in the virtual image display area 2203D unless both arms are extended to the maximum.
Therefore, if the signal from the infrared detection unit 410 is used without processing, even if the user moves away from the virtual image display area 2203D, it is difficult for the user to experience such a state.

Therefore, in the process of step S14 in the present embodiment, the signal from the infrared detection unit 410 is processed so as to correct the hand protruding outside from the virtual image display area 2203D within the virtual image display area 2203D. To do.
As a result, the user can operate from the center to the end of the flat virtual image display area 2203D having a depth with both arms extended to the maximum or slightly bent.

In the present embodiment, the virtual image display area 2203D is made up of a three-dimensional space area whose plane farthest in the depth direction is a plane, but is not limited to this, and is the plane area farthest in the depth direction. It is good also as consisting of the three-dimensional space area | region which is a curved surface of the shape along the surface furthest in the depth direction of L and R.
As a result, the user can operate from the center to the end of the flat virtual image display area 2203D having a depth with both arms extended to the maximum or slightly bent.

Further, the immersive display 220 displays a rectangular image in the virtual image display area 2203D (step S15).
Subsequently, a display is made on the immersive display 220 when the image is surrounded by a finger (step S16). Here, a finger-shaped image may be displayed lightly in the vicinity of the image, or an instruction may be transmitted to the user by voice from a speaker instead of being displayed on the immersive display 220.

The user aligns the finger with the visible part of the image according to the instruction. Then, the correlation between the display area of the virtual image display area 2203D and the infrared detection unit 410 is automatically adjusted (step S17).
In the above description, a rectangle is formed with a finger, and is matched with the rectangle thus determined and the rectangle of the outer edge of the image. Thus, the rectangular viewing size and position determined by the finger are matched with the rectangular viewing size and position of the outer edge of the image.
However, the method of determining the shape with the finger is not limited to this, and any other method such as a method of tracing the outer edge of the displayed image with a finger, a method of pointing a plurality of points on the outer edge of the displayed image with a finger, etc. It may be. Moreover, you may perform these methods about the image of several sizes.

  In the above description of the calibration process, only the case of the electronic glasses 100 has been described. However, in the case of another input / output device, an image is displayed in the process of step S11, and the process of step S17. The correlation between the image and the infrared detection unit 410 may be adjusted.

(Finger, palm, arm recognition)
Next, finger recognition will be described, and then palm recognition and arm recognition will be described in this order. FIG. 12 is a schematic diagram illustrating an example of finger recognition. 12A is an enlarged view of the vicinity of the tip of the finger, and FIG. 12B is an enlarged view of the vicinity of the base of the finger. FIG. 13 is a flowchart illustrating an example of finger recognition processing.

As shown in FIG. 13, in this embodiment, the device is initialized (step S21). Next, the infrared ray irradiated from the infrared irradiation element 411 and reflected by the hand is detected by the infrared detection camera 412 (step S22).
Next, the image data is replaced with a distance in units of pixels by the infrared detection unit 410 (step S23). In this case, the brightness of infrared rays is inversely proportional to the cube of the distance. Using this, a depth map is created (step S24).

Next, an appropriate threshold value is provided for the created depth map. Then, the image data is binarized (step S25). That is, the noise of the depth map is removed.
Subsequently, a polygon having about 100 vertices is created from the binarized image data (step S26). Then, a low-pass filter (LPF) so the vertex becomes smooth, by creating a new polygon having more vertexes p _n, it extracts the outline OF hand shown in FIG. 12 (step S27).
In the present embodiment, the number of vertices extracted to create a polygon from the binarized data in step S26 is about 100. However, the number of vertices is not limited to this, and 1000 or any other arbitrary number is used. It may be a number.

From the set of vertices _{p n} of new polygons created in step S27, using Convex Hull, it extracts the hull (step S28).
Thereafter, a shared vertex p ₀ between the new polygon created in step S27 and the convex hull created in step S28 is extracted (step S29). The shared vertex p ₀ itself extracted in this way can be used as the finger tip point.
Further, another point calculated based on the position of the vertex p ₀ may be used as the tip point of the finger. For example, it is also possible to calculate the center of the inscribed circle of the contour OF at the vertex p ₀ as shown in FIG. 12 (A) as a center point P0.

Then, as shown in FIG. 12, a vector of the reference line segment PP ₁ passing through a pair of left and right vertices p ₁ adjacent to the vertex p ₀ is calculated. Thereafter, the side pp ₂ connecting the vertex p ₁ and the adjacent vertex p ₂ is selected, and its vector is calculated. Similarly, using the vertex p _n constituting the outer OF, repeated along the process of obtaining the vector edge to the outer periphery of the outer OF. It examines the respective sides of the orientation and the reference line segment PP ₁ orientation determines that the sides pp _k comprising parallel close to the reference line segment PP ₁ is present at the position of the crotch of the finger. Then, based on the position of the side pp _k , the root point P1 of the finger is calculated (step S30). A finger skeleton is obtained by connecting the finger tip point P0 and the finger root point P1 with a straight line (step S31). By obtaining the skeleton of the finger, the extension direction of the finger can be recognized.
By performing the same process for all fingers, skeletons for all fingers are obtained. Thereby, the hand pose can be recognized. That is, it is possible to recognize which of the thumb, the index finger, the middle finger, the ring finger, and the little finger is spread and which finger is gripped.

  Subsequently, a difference in hand pose is detected in comparison with the image data of several frames performed immediately before (step S32). That is, the hand movement can be recognized by comparing with the image data of the last several frames.

  Next, the recognized hand shape is delivered to the event service unit 460 as gesture data (step S33).

  Next, the application software unit 459 performs a behavior corresponding to the event (step S34).

Subsequently, the display service unit 462 requests drawing in the three-dimensional space (step S35).
The graphic operation unit 463 refers to the calibration data recording unit 457 using the calibration service unit 461, and corrects the display (step S36).
Finally, display is performed on the immersive display 220 by the display arithmetic unit 464 (step S37).

In the present embodiment, the root point of the finger is detected by the process of step S30 and the process of step S31, but the root point detection method is not limited to this. For example, first, the length of the reference line segment PP ₁ that connects a pair of adjacent vertices p ₁ on one side and the other side of the vertex p ₀ is calculated.
Then, to calculate the length of a line connecting between the pair of vertices p ₂ at the one side and the other side. Similarly, the length of the line segment connecting the pair of vertices on the one side and the other side is calculated in the order from the vertex located closer to the vertex p ₀ to the vertex located further away.

Such line segments are approximately parallel to each other without intersecting within the outer shape OF. When the vertices at both ends of the line segment are at the finger portion, the length of the line segment corresponds to the width of the finger, so the amount of change is small. On the other hand, when at least one of the vertices at both ends of the line segment reaches the crotch portion of the finger, the amount of change in the length increases.
Therefore, the root point can be determined by detecting the line segment that does not exceed the predetermined amount and the farthest from the apex p ₀ and extracts one point on the detected line segment. .

(Palm recognition)
Next, FIG. 14 is a schematic diagram illustrating an example of palm recognition.

  As shown in FIG. 14, after performing finger recognition, a maximum inscribed circle C inscribed in the outer shape OF of the image data is extracted. The position of the maximum inscribed circle C can be recognized as the palm position.

  Next, FIG. 15 is a schematic diagram illustrating an example of thumb recognition.

As shown in FIG. 15, the thumb has different characteristics from the other four fingers of the index finger, middle finger, ring finger, and little finger. For example, among the angles θ1, θ2, θ3, and θ4 formed by the straight lines connecting the center of the maximum inscribed circle C indicating the palm position and the root point P1 of each finger, θ1 involving the thumb tends to be the largest. is there.
Of the angles θ11, θ12, θ13, and θ14 formed by the straight lines connecting the tip point P0 of each finger and the root point P1 of each finger, θ11 involving the thumb tends to be the largest. The thumb is determined based on such a tendency. As a result, it is possible to determine whether the hand is the right hand or the left hand, or the front or back of the palm.

(Arm recognition)
Next, arm recognition will be described. In the present embodiment, arm recognition is performed after any of a finger, palm, and thumb is recognized. Note that the arm recognition may be performed before recognizing any one of the finger, the palm, and the thumb, or at least one of them.

In the present embodiment, the polygon is extracted in a larger area than the hand-shaped polygon of the image data. For example, the process of steps S21 to S27 is performed in a range of 5 cm to 100 cm in length, and more preferably in a range of 10 cm to 40 cm to extract the outer shape.
Thereafter, a rectangular frame circumscribing the extracted outer shape is selected. In the present embodiment, the square frame is a parallelogram or a rectangle.
In this case, since the parallelogram or rectangle has long sides facing each other, the arm extending direction can be recognized from the long side extending direction, and the arm direction can be determined from the long side direction. I can do it. Note that, similarly to the process of step S32, the movement of the arm may be detected in comparison with the image data of the previous few frames.

  In the above description, the finger, palm, thumb, and arm are detected from the two-dimensional image. However, the present invention is not limited to the above, and the infrared detection unit 410 may be further added, and only the infrared detection camera 412 is used. May be further added to recognize a three-dimensional image from a two-dimensional image. As a result, the recognition accuracy can be further increased.

(Example of immersive display)
Next, FIGS. 16 and 17 are schematic views showing an example of display on the immersive display 220 of the electronic glasses 100, and FIG. 18 is a flowchart showing an example of processing of the electronic glasses 100 at the time of surgery. Hereinafter, the case where the electronic glasses 100 are used during surgery will be described.

First, as shown in FIG. 18, the control unit 450 recognizes the user's hand H1 and determines a partial region of the displayed image. Specifically, a dotted frame around the image ZM shown in FIG. 5A is determined (step S51).
Subsequently, the control unit 450 recognizes the gesture of the user's hand H1, and enlarges or reduces the image ZM (step S52). Specifically, the image ZM shown in FIG. 5A is enlarged and displayed like the image ZM shown in FIG. In the present embodiment, as shown in FIG. 5B, the partial image ZM can be enlarged by moving the user's hand H1 in the direction of the arrow XY. In this case, the enlargement process is not performed on the image area around the partial image ZM.
Furthermore, the partial image ZM can be reduced by moving the user's hand H1 in the direction opposite to the direction of the arrow XY.

  Next, the control unit 450 performs a shake suppression process on the image ZM (step S53). In the present embodiment, this process is automatically performed. In the present embodiment, the process is automatically performed. However, the present invention is not limited to this, and the process may be started by a predetermined gesture.

Subsequently, the control unit 450 performs a specific frequency filtering process with the gesture of the hand H1 (step S54). Specifically, as shown in FIG. 16, when the user performs a predetermined gesture with the hand H1, the infrared imaging unit 467 and the infrared irradiation unit 466 start functions. As a result, the user can easily recognize the blood vessel Bd and the like clearly displayed during the operation.
Next, the control unit 450 displays the three-dimensional solid model DD in the image area OZM around the image ZM with the gesture of the hand H1 (step S55). Specifically, as shown in FIG. 17, the three-dimensional solid model DD is displayed in the image area OZM around the partial image ZM. It is preferable that the three-dimensional solid model DD can be rotated around the vertical axis or rotated around the horizontal axis by the gesture.
The three-dimensional solid model DD is desirably displayed as a prototype model or a simulation model in surgery or treatment. As a result, the user can perform surgery or treatment with peace of mind. In particular, the three-dimensional solid model DD can function as a surgical or therapeutic guide.

  In the above example, all processes are performed by the gesture of the user's hand H1, for example, the processes of steps S51 to S55 are performed. However, the present invention is not limited to this, and the speech recognition unit 468 or the bone You may make it function by arbitrary apparatuses, such as the conduction apparatus unit 469 and the foot pedal which is not illustrated.

(Details of operation area 410c)
FIGS. 19 to 22 are schematic diagrams illustrating other examples of the operation area 410c described with reference to FIGS.
19 and 20 are schematic views showing a state in which the user is viewed from above, and FIGS. 21 and 22 are schematic views showing a state in which the user is viewed from the side.

  FIG. 19 shows a case where the user fully extends the arm arm1, the arm arm2, and the hand H1, and the hand H1 in this case passes through the movement locus RL1 around the right shoulder joint RP. In this case, the radius of curvature of the movement locus RL1 is rad1.

On the other hand, FIG. 20 shows a case where the user bends the arm arm1 and the arm arm2, and the hand H1 in this case passes through the movement locus RL2.
That is, in FIG. 20, the user is trying to move the hand H1 in the horizontal direction, but passes the movement locus RL2 that is close to a straight line. In this case, the radius of curvature of the movement locus RL2 is rad2. Here, of course, based on ergonomics, the radius of curvature rad1 is smaller than the radius of curvature rad2.

  In this case, even if the control unit 450 detects the movement locus RL1 from the infrared unit 410, it calibrates that the movement is linear. Similarly, the control unit 450 calibrates that the movement is linear even when the movement locus RL2 is detected.

  Next, FIG. 21 shows a case where the user has fully extended the arm arm1, the arm arm2, and the hand H1, and the hand H1 in this case passes through the movement locus RL3 about the right shoulder joint RP. In this case, the radius of curvature of the movement locus RL3 is rad3.

On the other hand, as shown in FIG. 22, the user shows a case where the arm arm1 and the arm arm2 are bent, and the hand H1 in this case passes through the movement locus RL4.
That is, in FIG. 22, the user is trying to move the hand H1 in the vertical direction, but passes the movement locus RL4 close to a straight line. In this case, the radius of curvature of the movement locus RL4 is rad4. Here, based on ergonomics, the curvature radius rad3 is naturally smaller than the curvature radius rad4.

  In this case, even if the control unit 450 detects the movement locus RL3 from the infrared unit 410, it calibrates that the movement is linear. Similarly, the control unit 450 calibrates that the movement is a linear movement even when the movement locus RL4 is detected.

  As described above, in FIGS. 19 to 22, the case of one arm has been described. However, the calibration is performed in the same manner in the case of the other arm. Done.

  Further, calibration may be performed on an arbitrary trajectory passing between the movement trajectory RL1 and the movement trajectory RL2. Similarly, calibration may be performed on an arbitrary trajectory passing between the movement trajectory RL3 and the movement trajectory RL4.

  As a result, based on ergonomics, even if the locus of moving the hand H1 by the user in a straight line is curved, it is recognized by being calibrated by the control unit 450, and the pair of light transmissive displays 220 has a straight line. In addition to being displayed, it is displayed with a trajectory moved in a straight line.

  Next, FIG. 23 is a schematic diagram illustrating another example of the electronic glasses 100.

As shown in FIG. 23, the electronic spectacles 100a has a lens barrel 610, unlike FIGS. The lens barrel 610 has an optical zoom function inside. Further, the lens barrel 610 has a hinge part, and can be flipped up above the electronic glasses 100a. In addition, a pair of immersive displays 220a is disposed inside the barrel portion 610 of the electronic glasses 100a.
The electronic glasses 100a have the same functions and display as the electronic glasses 100 of FIGS. 1 and 2 described above.

  The electronic glasses 100a also includes an external foot pedal 690. Further, although not shown, an external dial function may be included.

  Further, the electronic glasses 100a may include an external output terminal 698. The external output terminal 698 may be connected to an external recording device 699.

  23 may be removable only from the communication system 300, the operation system 400, and the lens barrel 610, or may be attachable to normal glasses.

  As described above, in the electronic glasses 100 according to the present invention, an object is imaged by the camera unit 303 and at least one of a two-dimensional image and a three-dimensional image is displayed on the immersive display 220. Further, the control unit 450 can adjust the display magnification of only the image ZM. As a result, since the magnification of only the image ZM can be enlarged or reduced, the user can easily recognize a fine part or an entire part.

  Further, the display magnification around the image ZM is 1. As a result, it is possible to recognize the entire feature by confirming the surroundings, and it is possible to recognize a fine part or to recognize the entire by confirming the image ZM.

  The distance to the part H1 of the human body is measured by the infrared detection unit 410, and the display magnification of the image ZM displayed on the immersive display 220 is adjusted by the control unit 450 according to the measurement result.

In addition, since the operation system 400 includes at least one of the voice recognition unit 468 and the bone conduction device unit 469, the user can operate the operation system 400 by voice even when both hands cannot be used. Further, by using bone conduction, the operation system 400 can be operated even in a noisy environment or a quiet environment.
Note that the voice recognition unit 468 and the bone conduction device unit 469 may be formed so as to be removable from the electronic glasses 100.

Furthermore, since the infrared imaging unit 467 can capture images while irradiating infrared rays with the infrared irradiation unit 466, the blood vessels of the human body can be clearly seen.
Further, the electronic glasses 100 can be easily carried. Moreover, since the head mounted display is small, versatility and convenience can be enhanced.

  Note that the electronic spectacles 100 may be provided with only essential components and functions for weight reduction, and a heavy object such as a battery may be provided outside the electronic spectacles 100 with a cable or the like.

  In the present invention, the electronic glasses 100 correspond to “electronic glasses”, the camera unit 303 corresponds to “imaging device”, the pair of immersive displays 220 corresponds to “one or more display devices”, and the image ZM Corresponds to “part of image”, the control unit 450 corresponds to “control unit”, the operation system 400 corresponds to “operation unit”, the infrared detection unit 410 corresponds to “depth sensor”, and the hand H1 Corresponds to “a part of the human body or the outline of the part of the human body”, the voice recognition unit 468 corresponds to the “voice recognition unit”, the bone conduction device unit 469 corresponds to the “bone conduction recognition unit”, and infrared rays The irradiation unit 466 corresponds to an “irradiation unit”, the infrared imaging unit 467 corresponds to an “infrared camera”, and FIG. 18 corresponds to an “electronic glasses control method”.

  A preferred embodiment of the present invention is as described above, but the present invention is not limited thereto. It will be understood that various other embodiments may be made without departing from the spirit and scope of the invention. Furthermore, in this embodiment, although the effect | action and effect by the structure of this invention are described, these effect | actions and effects are examples and do not limit this invention.

DESCRIPTION OF SYMBOLS 100,100a Electronic glasses 220,220a A pair of immersive display 303 Camera unit 400 Operation system 410 Infrared detection unit 450 Control unit 466 Infrared irradiation unit 467 Infrared imaging unit 468 Voice recognition unit 469 Bone conduction device unit 610 Lens barrel part 690 Foot pedal 698 External output terminal 699 Recording device H1 hand ZM image

Claims (7)

Electronic glasses that can be worn on the head of a human body,
An imaging device for imaging an object;
One or more display devices for displaying at least one of two-dimensional and three-dimensional images by the imaging device;
An operation unit for operating an image displayed on the display device;
A control unit that adjusts a display magnification of only a part of the image displayed on the display device,
The operation unit includes a depth sensor that measures a distance from the electronic glasses to a part of the human body of the wearer of the electronic glasses,
The control unit adjusts a display magnification of only a part of the image according to information on a distance to the part of the human body measured by the depth sensor, and the human body around the part of the image. Electronic glasses for displaying an outline of a part or a part of the human body.   The electronic glasses according to claim 1, wherein the control unit adjusts a display magnification of a central portion of the image of the display device and does not adjust a display magnification around the central portion.   The electronic glasses according to claim 1, wherein the display device is an immersive display. The operation unit includes at least one of a voice recognition unit and a bone conduction recognition unit,
The electronic glasses according to any one of claims 1 to 3, wherein the control unit adjusts a display magnification of the image according to at least one of the voice recognition unit and the bone conduction recognition unit.   The electronic glasses according to claim 1, wherein the control unit has a digital zoom function for the image.   6. The electronic glasses according to claim 1, wherein the control unit includes an irradiation unit that irradiates infrared rays and an infrared camera. A method of controlling electronic glasses that can be worn on the head of a human body,
An imaging process for imaging an object;
One or a plurality of display steps for displaying at least one of two-dimensional and three-dimensional images by the imaging step;
An operation step of manipulating the image displayed in the display step ;
Adjusting the display magnification of only a part of the image displayed in the display step,
The operation step includes a step of measuring a distance from the electronic glasses to a part of the human body of the wearer of the electronic glasses by a depth sensor,
The control step adjusts a display magnification of only a part of the image according to information on a distance to the part of the human body measured by the depth sensor, and surrounds the human body around the part of the image. A method for controlling electronic glasses comprising a step of displaying a part or an outline of a part of the human body.

Images