JP5789644B2 - Image reproduction method - Google Patents

Description

The present invention relates to an image reproducing method for displaying a real image having no distortion and whose magnification has been changed.

In each of the transparent plates, first and second belt-like reflecting surfaces are provided in parallel with a gap so as to be parallel to the thickness direction of the transparent plate (so as to be perpendicular to the surface of the transparent plate). The second light control panel is disposed in contact with the first and second light control panels in a state in which the band-like reflecting surfaces are orthogonal to each other, for example, an object disposed outside the first light control panel is subjected to the second light control. An optical imaging apparatus that forms a stereoscopic image on the outside of the panel has been proposed (see, for example, Patent Document 1).

No. 2009/131128

Here, in the optical imaging device described in Patent Document 1, if the size of a stereoscopic image to be formed is changed (enlarged or reduced), it is necessary to change the size of the object. This is a great hindrance to the popularization of image devices. Therefore, by providing the band-like reflecting surface in the transparent plate so as to be inclined with respect to the thickness direction of the transparent plate, it is possible to change the imaging position with respect to the optical imaging apparatus without changing the size of the object. It is possible to adjust the size of the stereoscopic image. However, it is impossible to make the interval and the inclination angle of the belt-like reflecting surfaces constant in the transparent plate. Usually, the amount of deviation from the respective set values of the interval and the inclination angle of the belt-like reflecting surfaces is the location of the transparent plate. It fluctuates by. For this reason, even if light is incident on the transparent plate from the same direction, the direction of the reflected light reflected by the belt-like reflecting surface differs depending on the incident position in the transparent plate.

Therefore, when the optical imaging apparatus is configured using the first and second light control panels in which the interval and the inclination angle of the belt-like reflecting surfaces are varied depending on the location of the transparent plate, the optical reflecting device is disposed on the first light control panel side. The image formation position of each part of the object is radiated from each part of the object and the positional relationship between the parts (distance between each part, distance between each part and the first light control panel). The first and second light control panels that are involved in the image formation of the light are affected by the positions of the band-like reflecting surfaces in the first and second light control panels. As a result, there is a problem that the stereoscopic image formed on the second light control panel side is enlarged or reduced and becomes distorted.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide an image reproduction method capable of displaying a real image having no distortion and whose magnification has been changed (including the case of changing the same magnification).

In the image reproducing method according to the first aspect of the present invention, the strip-shaped reflecting surfaces inclined with respect to the thickness direction of the transparent plate are provided in parallel with a gap in the transparent plate. A magnification-changing type optical imaging apparatus in which two light control panels are arranged in contact with each other in a state where the strip-like reflection surfaces of the first and second light control panels intersect in plan view or in close proximity to each other An image reproduction method for forming an input image formed in the input side space of the magnification change type optical imaging apparatus as a real image in the output side space of the magnification change type optical imaging apparatus,
The position (X, Y, Z) of each output point in the output side space and the position (pX, qY, rZ) of each input point in the input side space corresponding to the position (X, Y, Z) of the output point ) Respectively for the first step,
The position (pX1, qY1, rZ1) of each input point with respect to the position (X1, Y1, Z1) of the output point forming a real image without a regular distortion displayed in the output side space is sequentially obtained, and the position ( pX1, qY1, rZ1) and a second step of arranging an image synthesized or prepared in advance.

In the image reproducing method according to the second aspect of the present invention, the belt-like reflecting surfaces inclined with respect to the thickness direction of the transparent plate are provided in parallel with a gap in the transparent plate. A magnification-changing type optical imaging apparatus in which two light control panels are arranged in contact with each other in a state where the strip-like reflection surfaces of the first and second light control panels intersect in plan view or in close proximity to each other An image reproducing method for forming an input image formed in the input side space of the magnification-changing optical imaging device as a real image without distortion in the output-side space of the magnification-changing optical imaging device,
Forming the input side space composed of a plurality of input points distributed at preset intervals, and obtaining an output point at which a micro image to be displayed for each input point is displayed via the magnification-changing optical imaging device Forming the output side space comprising the distribution of the output points;
Setting a region for reproducing the real image in the output side space, and extracting each of the plurality of output points present on the surface of the real image as display output points;
Extracting the input points of the input side space respectively corresponding to the display output points as display input points;
And displaying a partial original image of the original image that is the basis of the real image displayed at the display output point at each display input point to form the input image in the input side space.

In the image reproducing method according to the second invention, the minute image is displayed on a screen arranged on one side of the magnification-changing optical imaging device in parallel with the magnification-changing optical imaging device so as to freely advance and retract. It is preferable to display using.

In the image reproducing method according to the second invention, the output point is obtained by using an imaging means disposed on the other side of the magnification-changing optical imaging device so as to face the magnification-changing optical imaging device. preferable.

In the image reproducing method according to the first aspect of the present invention, the position (X, Y, Z) of each output point in the output side space and each input in the input side space corresponding to the position (X, Y, Z) of the output point. The position of each point (pX, qY, rZ) is obtained, the one-to-one correspondence between the output point and the input point is obtained in advance, and an output that forms a real image without a normal distortion displayed in the output side space. The position (pX1, qY1, rZ1) of each input point with respect to the position (X1, Y1, Z1) of the point is sequentially obtained, and an image synthesized or prepared in advance is arranged and input at this position (pX1, qY1, rZ1). Since the input image is formed in the side space, in the image reproducing method according to the second invention, the input point that forms the input side space for displaying the input image and the output point that forms the output side space for displaying the real image The one-to-one correspondence relationship with is obtained in advance and reproduced in the output side space. An output point existing on the surface of a real image without distortion is set as a display output point, and the original image that is the basis of the real image displayed at the display output point at the display input point in the input side space corresponding to each display output point Since the input image is formed in the input side space by displaying the partial original image, a real image without distortion can be formed in the output side space.

In the image reproducing method according to the second invention, a minute image is displayed on a screen arranged on one side of the magnification-changing optical imaging device in parallel to the magnification-changing optical imaging device and freely moving back and forth. When displaying, it is possible to efficiently form the minute image while accurately setting the position of the minute image.

In the image reproducing method according to the second invention, when the output point is obtained by using an imaging means disposed on the other side of the magnification-changing optical imaging device so as to face the magnification-changing optical imaging device, The position can be determined easily and accurately.

(A), (B), (C) are a plan view and a front sectional view showing the main part of a magnification-changing optical imaging apparatus used in the image reproducing methods according to the first and second embodiments of the present invention. FIG. It is explanatory drawing which shows the light control state by the same magnification change type | mold optical imaging device. It is explanatory drawing which shows the light control state by the other magnification change type | mold optical imaging device used for the image reproduction method which concerns on the 1st, 2nd embodiment of this invention. It is explanatory drawing of the input side space and output side space in the image reproduction method which concerns on the 1st Embodiment of this invention. It is explanatory drawing which shows the relationship between the display input point and display output point in the same image reproduction method. It is explanatory drawing of the formation method of the input side space and output side space in the same image reproduction method. It is explanatory drawing of the input side space and output side space in the image reproduction method which concerns on the 2nd Embodiment of this invention. It is explanatory drawing which shows the relationship between the display input point and display output point in the same image reproduction method. It is explanatory drawing of the formation method of the input side space and output side space in the same image reproduction method.

Next, image reproduction methods according to the first and second embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in FIGS. 1A, 1B, and 1C, the magnification-changing optical imaging apparatus 10 used in the first and second image reproducing methods of the present invention is arranged in contact with each other. 1 and second light control panels 11 and 12 are provided. The first and second control panels 11 and 12 are inclined in the thickness direction of the transparent plates 11a and 12a in the transparent plates 11a and 12a and the transparent plates 11a and 12a, respectively (first and second control panels). 11 and 12 have an inclination angle of β degrees), and each of the first and second light control panels 11 and 12 has a plurality of strip-like reflecting surfaces 13 and 14 arranged in parallel at predetermined intervals. The strip-like reflecting surfaces 13 and 14 intersect in an orthogonal state in plan view. The first and second control panels 11 and 12 are preferably joined using a transparent adhesive. However, even if the first and second control panels 11 and 12 are simply brought into contact with each other, a gap is formed. And may be close to each other in parallel.

Here, the inclination angle β degrees is less than 90 degrees and 30 degrees or more, preferably 55 to 89 degrees, more preferably 75 to 88 degrees (the same applies hereinafter), but may be less than 30 degrees depending on circumstances. Then, as shown in FIG. 1B, α = 90−β, where α is an inclination angle with respect to the plane parallel to the thickness direction of the strip-like reflecting surfaces 13 and 14. In such a configuration, on one side of the magnification-changing optical imaging apparatus 10 (FIG. 1B), outside the first light control panel 11, that is, the second light control panel of the first light control panel 11. 12 is an input side space for forming (displaying) an input image before changing the magnification on the outer side opposite to the side in contact with the second side, and the other side of the magnification changing type optical imaging apparatus 10 (the second side in FIG. 1B). The output side space in which a real image with the magnification changed is formed on the outside of the light control panel 12, that is, the outside of the second light control panel 12 opposite to the side in contact with the first light control panel 11. When set to, the band-like reflecting surfaces 13 and 14 are formed inclining α degrees inward with respect to the axis m of the input image (that is, inward with respect to the light traveling direction (image forming direction)). Has been.

FIG. 2 shows the input image in the input side space outside the first light control panel 11 when the magnification-changing optical imaging device 10 is viewed from the side along the longitudinal direction of the belt-like reflecting surface 14. This shows the situation when the light emitted from one point P is reflected by the belt-like reflecting surfaces 13 and 14 and is emitted to the output side space outside the second light control panel 12. Assuming that the incident angle when the reflected light of the band-shaped reflecting surface 13 enters the band-shaped reflecting surface 14 is θ, the reflected light reflected by the band-shaped reflecting surface 14 and radiated to the output side space and the magnification-changing optical imaging apparatus 10 The angle γ formed by the first and second light control panels 11 and 12 is (θ−α) degrees.

On the other hand, when the band-like reflection surface is formed in parallel with the thickness direction of the first and second light control panels 11 and 12 (when α is 0 degree), the band-like reflection of the second light control panel 12 is performed. The angle γ formed between the reflected light reflected from the surface and emitted to the output side space and the second light control panel 12 is θ degrees. Therefore, when the inclination angle of the band-shaped reflection surface 14 is β (90−α) degrees less than 90 degrees, the optical path of the reflected light radiated to the output side space compared to the case where the band-shaped reflection surface is not inclined. Approaches the second light control panel 12 and one point P ′ of the real image formed in the output side space is formed on the side close to the magnification-changing optical imaging apparatus 10. As a result, the real image formed in the output side space is smaller (reduced) than the input image.

The other magnification-changing optical imaging device 17 used in the image reproducing methods according to the first and second embodiments of the present invention is as shown in FIG. Moreover, the inclination angle of the band-like reflecting surfaces 20 and 21 provided in the first and second light control panels 18 and 19 is characterized by β degrees exceeding 90 degrees and 150 degrees or less. For this reason, if the inclination angle of the strip-like reflecting surfaces 20 and 21 with respect to the plane parallel to the thickness direction is α degrees, α = β−90. In such a configuration, an input-side space for forming (displaying) an input image before changing the magnification on one side of the magnification-changing optical imaging device 17 (outside of the first light control panel 18 in FIG. 3), When the other side (in FIG. 3, the outside of the second light control panel 19) is set as an output side space in which a real image whose magnification has been changed is formed (reproduced), the belt-like reflecting surfaces 20 and 21 have the axis m of the input image. Is inclined by α degrees outward (ie, opened outward with respect to the light traveling direction (image forming direction)).

FIG. 3 shows that the magnification-changing optical imaging device 17 is emitted from one point S of the input image on the first light control panel 18 side when viewed from the side along the longitudinal direction of the belt-like reflecting surface 21. This shows the situation when the reflected light is reflected by the belt-like reflecting surfaces 20 and 21 and is emitted to the output side space on the second light control panel 19 side. Assuming that the incident angle when the reflected light of the band-shaped reflecting surface 20 enters the band-shaped reflecting surface 21 is θ, the reflected light reflected by the band-shaped reflecting surface 21 and radiated to the output side space and the magnification-changing optical imaging device 17 The angle γ formed by the (first and second light control panels 18, 19) is (θ + α) degrees. Therefore, when the inclination angle of the band-like reflection surface 21 is β (90 + α) degrees exceeding 90 degrees, the optical path of the reflected light radiated to the output side space is the first as compared with the case where the band-like reflection surface is not inclined. One point S ′ of the real image formed in the output side space away from the second light control panel 19 is formed on the side away from the magnification-changing optical imaging device 17. As a result, the real image formed in the output side space becomes larger (enlarged) than the input image. Reference numeral 22 denotes a contact surface between the first light control panel 18 and the second light control panel 19.

Next, an image reproducing method according to the first embodiment of the present invention using the magnification-changing optical imaging apparatuses 10 and 17 will be described. As shown in FIG. 4, in this image reproducing method, the input side corresponding to the position (X, Y, Z) of each output point 25a in the output side space 26a and the position (X, Y, Z) of the output point 25a. A first step for determining the position (pX, qY, rZ) of each input point 23a in the space 24a, and, as shown in FIG. 5, a real image without a regular distortion displayed in the output side space 26a, for example, a rectangular parallelepiped image The position (pX1, qY1, rZ1) of each input point 23b in the input side space 24a with respect to the position (X1, Y1, Z1) of the output point 25b to be formed is sequentially obtained, and the position (pX1, qY1, rZ1) of each input point 23b is obtained. And a second step of arranging an image prepared in advance or prepared in advance. Details will be described below.

In the first step, an output side space 26a is set on one side of the magnification-changing optical imaging devices 10 and 17, and output points 25a are arranged at a plurality of positions (X, Y, Z) in the output side space 26a. The input of the minute image to be displayed for each output point 25a is formed on the input side space 24a formed on the other side of the magnification-changing optical imaging devices 10 and 17 via the magnification-changing optical imaging devices 10 and 17. The position (pX, qY, rZ) of the point 23a is obtained.

For example, as shown in FIG. 6, the minute image is displayed at the output point 25a. For example, the minute image is a light spot, and the magnification-changing optical imaging is formed in the output-side space 26a of the magnification-changing optical imaging devices 10 and 17. The image is displayed on a screen 31a arranged parallel to the devices 10 and 17 so as to be movable back and forth using a projector 32a which is an example of a display unit. Then, the light emitted from the displayed light spot passes through the magnification changing optical imaging devices 10 and 17 to the input point 23a of the input side space 24a of the magnification changing optical imaging devices 10 and 17. Since the image is formed as an image, a light spot image is taken using the first light control panel 11 and 18 stereo camera 33a outside the first light control panel 11 and 18. Note that the stereo camera 33a may simply be a camera.

Here, the position of the light spot formed at the output point 25a of the output side space 26a can be specified from the position of the screen 31a with respect to the second light control panels 12 and 19 and the light spot position on the screen 31a. Further, the position of the light spot image formed at the input point 23a of the input side space 24a is the position of the stereo camera 33a with respect to the first light control panels 11 and 18, and the position in the captured image photographed by the stereo camera 33a. It is requested from.

Then, the screen 31a arranged in parallel to the second light control panels 12 and 19 of the magnification-changing type optical imaging devices 10 and 17 is arranged at a pitch set in advance in the output side space 26a. 12 and 19, the position of the light spot displayed on the screen 31 a by the projector 32 a is changed vertically and horizontally at predetermined intervals for each position of the screen 31 a, and connected to the input point 23 a of the input side space 24 a. By sequentially specifying the positions of the light spot images to be imaged, as shown in FIG. 4, the position (X, Y, Z) of the output point 25a in the output side space 26a and the input point 23a in the input side space 24a. The relationship between the positions (pX, qY, rZ) is obtained.

The second step sets a region for forming a rectangular parallelepiped image in the output side space 26a, extracts a plurality of output points 25b existing on the surface of the rectangular parallelepiped image, and the input side space 24a corresponding to each of the output points 25b. And a sub-process of displaying a partial image corresponding to each part of the rectangular parallelepiped image at the input point 23b and forming an input image in the input-side space 24a. As shown in FIG. 5, the positional relationship of the input point 23b in the input side space 24a is not preserved, and the input image is distorted.

Next, an image reproducing method according to the second embodiment of the present invention using the magnification change type optical imaging apparatuses 10 and 17 will be described. In this image reproducing method, as shown in FIG. 7, an input side space 24 composed of a plurality of input points 23 distributed at preset intervals is formed, and a minute image displayed for each input point 23 is converted into a magnification-changing optical connection. A step of obtaining an output point 25 displayed via the image devices 10 and 17 to form an output side space 26 composed of the distribution of the output points 25, and a real image, for example, in the output side space 26 as shown in FIG. A step of setting an area for reproducing the rectangular frame 27 and extracting the plurality of output points 25 existing on the frame portion (front surface) of the rectangular frame 27 as display output points 28, respectively, as shown in FIG. The step of extracting the input points 23 of the input side space 24 corresponding to the display output points 28 as the display input points 29 and the basis of the rectangular frame 27 displayed on the display output points 28 respectively. Display a partial original image of the original image And a step of forming an input image 30 on the side space 24. Details will be described below.

As shown in FIG. 9, the micro image is displayed at the input point 23, for example, a light spot, which is one side of the magnification-changing optical imaging devices 10, 17 (on the first light control panels 11, 18. The image is displayed on the screen 31 arranged outside (inside), that is, in the input side space 24 in parallel to the magnification-changing type optical imaging apparatuses 10 and 17 and freely movable back and forth using a projector 32 as an example of display means. And the light radiated | emitted from the displayed light spot passes through the magnification change type optical imaging devices 10 and 17, and the other side of the magnification change type optical imaging devices 10 and 17 (second light control panel 12, 19), that is, the light point image is formed on the output point 25 of the output side space 26, so that the second light control panels 12, 19 are opposed to the second light control panels 12, 19. A light spot image is taken using the camera 33 which is an example of the arranged imaging means. The camera 33 may be a stereo camera.

Here, the position of the light spot formed at the input point 23 in the input side space 24 can be specified from the position of the screen 31 with respect to the first light control panels 11 and 18 and the light spot position on the screen 31. Further, the position of the light spot image formed at the output point 25 of the output side space 26 is obtained from the position of the camera 33 with respect to the second light control panels 12 and 19 and the position in the captured image taken by the camera 33. It is done. Thereby, the relationship between the position of the input point 23 in the input side space 24 and the position of the output point 25 in the output side space 26 is obtained.

The screens 31 arranged in parallel to the first light control panels 11 and 18 of the magnification-changing optical imaging apparatuses 10 and 17 are arranged at a predetermined pitch in the input side space 24 with the first light control panel. 11 and 18, the position of the light spot displayed on the screen 31 by the projector 32 is changed vertically and horizontally at a preset interval for each position of the screen 31, and connected to the output point 25 of the output side space 26. By sequentially specifying the position of the light spot image to be imaged, as shown in FIG. 7, the input point 23 of the input side space 24 for displaying the input image and the output point 25 of the output side space 26 for displaying the real image are displayed. one-to-one correspondence between, for _{example, a 11} is _{a'11, b 11} are _{b'11, c 11} is _{c'11, d 11} is _{d'11, e 11} is _{e'11, a 21} is a _{'21, b 21} are _{b'21, c 21 c'21, d 21} is _{d'21, e} 21 is _e'21, ··· are determined.

As shown in FIG. 8, a reproduction area of a rectangular frame 27 that is a real image without distortion is set in the output side space 26, and a plurality of output points 25 existing on the surface of the rectangular frame 27, that is, the frame portion are displayed and output. Each is extracted as a point 28. Next, the input points 23 in the input side space 24 corresponding to the display output points 28 are extracted as display input points 29. Then, by displaying the partial original images of the original image that is the basis of the rectangular frame 27 displayed at the display output point 28 at the display input points 29, the input image of the rectangular frame 27 is displayed in the input side space 24. 30 is formed. The positional relationship between the display input points 29 in the input side space 24 is not preserved, and the input image 30 is distorted.

As described above, the present invention has been described with reference to the embodiment. However, the present invention is not limited to the configuration described in the above-described embodiment, and the matters described in the scope of claims. Other embodiments and modifications conceivable within the scope are also included.
Further, the present invention also includes a combination of components included in the present embodiment and other embodiments and modifications.

10: magnification change type optical imaging apparatus, 11: first light control panel, 11a: transparent plate, 12: second light control panel, 12a: transparent plate, 13, 14: strip-like reflecting surface, 16: contact Surface, 17: magnification-changing optical imaging device, 18: first light control panel, 19: second light control panel, 20, 21: band-like reflecting surface, 22: contact surface, 23, 23a, 23b: Input point, 24, 24a: input side space, 25, 25a, 25b: output point, 26, 26a: output side space, 27: rectangular frame, 28: display output point, 29: display input point, 30: input image 31, 31a: Screen, 32, 32a: Projector, 33: Camera, 33a: Stereo camera

Claims (4)

First and second light control panels, each having a strip-like reflecting surface inclined with respect to the thickness direction of the transparent plate in parallel with a gap, are provided in the transparent plate. An input side of the magnification-changing optical imaging device using the magnification-changing optical imaging device arranged such that the strip-like reflecting surfaces of the control panel are in contact with each other in a plan view or in close proximity to each other An image reproduction method for forming an input image formed in space as a real image in the output side space of the magnification-changing optical imaging apparatus,
The position (X, Y, Z) of each output point in the output side space and the position (pX, qY, rZ) of each input point in the input side space corresponding to the position (X, Y, Z) of the output point ) Respectively for the first step,
The position (pX1, qY1, rZ1) of each input point with respect to the position (X1, Y1, Z1) of the output point forming a real image without a regular distortion displayed in the output side space is sequentially obtained, and the position ( and a second step of arranging an image synthesized or prepared in advance in pX1, qY1, rZ1). First and second light control panels, each having a strip-like reflecting surface inclined with respect to the thickness direction of the transparent plate in parallel with a gap, are provided in the transparent plate. An input side of the magnification-changing optical imaging device using the magnification-changing optical imaging device arranged such that the strip-like reflecting surfaces of the control panel are in contact with each other in a plan view or in close proximity to each other An image reproduction method for forming an input image formed in space as a real image without distortion in the output side space of the magnification-changing optical imaging apparatus,
Forming the input side space composed of a plurality of input points distributed at preset intervals, and obtaining an output point at which a micro image to be displayed for each input point is displayed via the magnification-changing optical imaging device Forming the output side space comprising the distribution of the output points;
Setting a region for reproducing the real image in the output side space, and extracting each of the plurality of output points present on the surface of the real image as display output points;
Extracting the input points of the input side space respectively corresponding to the display output points as display input points;
And a step of displaying a partial original image of the original image that is the basis of the real image displayed at the display output point to form the input image in the input side space at each of the display input points. Image reproduction method. 3. The image reproducing method according to claim 2, wherein the minute image has display means on a screen disposed on one side of the magnification-changing optical imaging device in parallel with the magnification-changing optical imaging device so as to be movable back and forth. An image reproducing method characterized by using and displaying. 4. The image reproduction method according to claim 3, wherein the output point is obtained by using an imaging unit disposed on the other side of the magnification-changing optical imaging device so as to face the magnification-changing optical imaging device. Image reproduction method.

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