KR100696656B1 - Stereoscopic Imager with Mobile Image Capture - Google Patents

Abstract

The stereoscopic imaging device of the present invention includes a stereoscopic image display unit; And an image capturing unit configured to photograph the left eye image and the right eye image of the target to obtain image information, and provide an image signal of the left eye image and an image signal of the right eye image to the stereoscopic image display unit. The image capturing unit; And a moving unit configured to set a first point for photographing a left eye image of a target object and a second point for photographing a right eye image, and move the camera on a track connecting the first point and the second point. The moving unit may move the camera on a linear track connecting the first point and the second point, or move the camera on a curved track connecting the first point and the second point.

Stereoscopic Video, Mobile, Camera, Parallax Barrier, Lenticular Lens, Moving Part

Description

Stereoscopic Imager with Mobile Image Capture {AUTOSTEREOSCOPY DEVICE WITH MOVABLE IMAGE ACQUISITION APPARATUS}

1 is a front view of a stereoscopic imaging device according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of a 3D image display unit using a parallax barrier type in a 3D image device according to an embodiment of the present invention.

FIG. 3 is a partial cross-sectional view of a stereoscopic image display unit of a lenticular lens type among stereoscopic apparatuses according to an embodiment of the present invention.

4 is a schematic diagram illustrating an operation principle of an image capturing unit of a stereoscopic image device according to an embodiment of the present invention.

5 and 6 are schematic diagrams illustrating embodiments of a moving unit of a stereoscopic image device according to an embodiment of the present invention.

The present invention relates to a stereoscopic imaging apparatus having an image capturing unit, and more particularly, to a stereoscopic imaging apparatus which improves an image capturing unit for capturing a left eye image and a right eye image of an object to obtain image information.                         

In general, a stereoscopic image display device is a device that provides a different image to the user's left and right eyes to feel a sense of distance and three-dimensional feeling to the user's image, the user can watch a stereoscopic image without wearing equipment such as polarized glasses Autostereoscopy devices are known.

A typical autostereoscopy device adopts a method of spatially dividing a left eye image and a right eye image implemented in an image display unit using an optical separation device such as a lenticular lens or a parallax barrier in a left eye direction and a right eye direction, respectively. have. Conventional techniques related to autostereoscopic devices include a stereoscopic image display device disclosed in US Pat. Nos. 5,465,175 and 6,046,849.

In order to implement a stereoscopic image in the autostereoscopic device, an image signal obtained through a stereoscopic camera must be used. This is a method of obtaining a plurality of video signals by placing a plurality of cameras around an object to obtain an image signal and simultaneously photographing the objects at different positions. However, even if the same type of camera is used, noise may be generated due to different mechanical properties of each camera, or it may be difficult to finely calibrate the camera.

Recently, efforts have been made to apply a device for displaying or photographing a stereoscopic image to a mobile device such as a cellular phone or a digital camera. However, when a 3D image display device is applied to a mobile device, the size and resolution of the display device are limited due to the characteristics of the mobile device. Therefore, a 2-view display device displaying a 3D image using only a left eye image and a right eye image is used. May be considered first.

In addition, when the apparatus for capturing stereoscopic images is applied to a mobile device equipped with a binocular stereoscopic display device, at least two cameras for capturing at least one left eye image and a right eye image are required. There is a problem in that it is difficult to be applied to a mobile device or a small stereoscopic image device because of the disadvantage of large and high unit price.

Accordingly, an object of the present invention is to solve the above problems, and an object of the present invention is to make it easy to photograph an object to obtain image information without having multiple cameras, thereby simplifying the construction and advantageous for miniaturization. The present invention provides a stereoscopic imaging device.

In order to achieve the above object, the present invention,

A stereoscopic image display unit; An image capturing unit configured to capture a left eye image and a right eye image of an object to obtain image information, and provide an image signal of a left eye image and an image signal of a right eye image to a stereoscopic image display unit, the image capturing unit comprising: a camera; It includes a moving unit for moving the camera on the orbit connecting the first point and the second point by setting a first point for the left eye image capture of the target to obtain image information, and a second point for the right eye image capture Provided is a stereoscopic image device.

The moving unit may move the camera on a linear track connecting a first point and a second point. In this case, the moving part is fixed to the support part having a straight long side corresponding to the movement trajectory of the camera while fixing the camera, a rack formed on the back side of the support part, a pinion rotating in engagement with the rack, and installed on the pinion. It may include a motor for driving it.

In addition, the moving unit may move the camera on a curved track connecting the first point and the second point, and the curved track is concave toward the object to obtain image information. In this case, the moving part is installed on the support having a curved long side corresponding to the movement trajectory of the camera while fixing the camera, a rack formed on the back of the support, a pinion which rotates in engagement with the rack, and a pinion. It may include a motor for driving it.

The moving unit may set a third point for two-dimensional photographing of an object to obtain image information in the center of the movement trajectory of the camera, and adjust the distance between the first point and the second point according to the stereoscopic degree of the three-dimensional image desired by the user. The control unit may be further included.

The stereoscopic image display unit includes an image display unit in which a plurality of sub-pixels corresponding to the left eye image and the right eye image are formed in an arbitrary pattern, a front surface of the image display unit, and a slit-shaped light blocking unit and a light transmitting unit have a constant period. It may include parallax barriers that are repeatedly arranged.

In another embodiment, the stereoscopic image display unit may include an image display unit in which a plurality of subpixels corresponding to the left eye image and the right eye image are formed in an arbitrary pattern, and disposed in front of the image display unit and corresponding to at least two subpixels. It may include a lenticular lens sheet consisting of a plurality of lenticular lenses.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view of a stereoscopic image device according to an embodiment of the present invention, and is illustrated by taking an example where the stereoscopic image device of the present embodiment is applied to a cellular phone.

Referring to the drawings, the stereoscopic apparatus generates a left eye image signal and a right eye image signal by capturing a stereoscopic image display unit 2 for displaying a stereoscopic image and a left eye image and a right eye image of a target to obtain image information, respectively. And an image capturing unit 4 which provides the stereoscopic image display unit 2 to the stereoscopic image display unit 2.

As shown in FIG. 2, the stereoscopic image display unit 2 may use a parallax barrier as an image separator and a lenticular lens sheet as an image separator as illustrated in FIG. 3.

First, referring to FIG. 2, the stereoscopic image display unit 2 includes an image display unit 6 in which a plurality of subpixels 1R and 1L corresponding to an image for a right eye and an image for a left eye have an arbitrary pattern; A parallax barrier 12 is disposed on the front surface of the image display unit 6 and the slit-shaped light blocking unit 8 and the light transmitting unit 10 are repeatedly arranged at regular intervals.

Each of the subpixels 1R and 1L receives an image signal of any one of the right eye image signal R and the left eye image signal L, so that the image display unit 6 receives the subpixels 1R corresponding to the right eye image. The right eye image is displayed at, and the left eye image is displayed at the subpixels 1L corresponding to the left eye image.

By the above configuration, the right eye image implemented in the right eye subpixels 1R of the image display unit 6 is separated in the right eye direction of the user via the light transmitting unit 10 of the parallax barrier 12, and the image display unit ( The left eye image implemented in the left eye sub-pixels 1L of 6) is separated in the left eye direction of the user through the light transmitting part 10 of the parallax barrier 12 so that the user can stereoscopic image the image of the image display part 6. Will be recognized.

In the above, the case where the parallax barrier 12 is disposed on the front surface of the image display unit 6 has been described. However, when the image display unit 6 is a transmissive display device that receives light from a light source (not shown) and displays an image. The parallax barrier 12 may be disposed between the light source and the image display unit 6.

Next, referring to FIG. 3, the stereoscopic image display unit 2 includes an image display unit 6 in which a plurality of sub-pixels 1R and 1L corresponding to a left eye image and a right eye image have an arbitrary pattern; The lenticular lens sheet 14 disposed on the front surface of the image display unit 6 and composed of a plurality of lenticular lenses 14a is included. Each lenticular lens 14a is disposed corresponding to two or more subpixels 1R and 1L.

By the above configuration, the right eye image implemented in the right eye sub-pixels 1R of the image display unit 6 is refracted by the lenticular lens 14a to be separated in the right eye direction of the user, and for the left eye of the image display unit 6. The left eye image implemented in the subpixels 1L is refracted by the lenticular lens 14a and separated in the left eye direction of the user, thereby allowing the user to recognize the image of the image display unit 6 as a stereoscopic image.

The stereoscopic image display unit 2 receives and displays an image signal of a left eye image and an image signal of a right eye image captured by the image capturing unit 4. In the present embodiment, the image capturing unit 4 is a camera movable type. The left eye image and the right eye image of the target to obtain image information are photographed using one camera 16, respectively.

4 is a schematic diagram illustrating the operation principle of the image capturing unit.

Referring to the drawings, the image capturing unit includes a camera 16 and a moving unit 18 for controlling the position of the camera 16. The moving unit 18 sets the first point P1 for photographing the left eye image of the target object and the second point P2 for photographing the right eye image, so that the first point P1 and the second point ( The camera 16 is moved on the track connecting P2). A third point P3 for two-dimensional imaging of an object for which image information is to be obtained may be set at the center of the trajectory connecting the first point P1 and the second point P2.

Therefore, when the user selects the two-dimensional imaging mode, the moving unit 18 moves the camera 16 to the third point P3 so that the camera 16 captures a target object at this position. When the user selects the 3D photographing mode, the moving unit 18 moves the camera 16 to the first point P1 so that the camera 16 captures an image for the left eye of the target object at this position. Then, the camera 16 is moved to the second point P2 so that the camera 16 captures the image for the right eye of the target object at this position.

At this time, when the timer device is installed in the motor control unit 20 (see FIGS. 5 and 6) for controlling the driving of the moving unit 18, the camera 16 is for the left eye of the target to be targeted at the first point P1. After capturing an image, the camera 16 may be automatically moved to the second point P2 to continuously photograph two images with a single photographing command.

In addition, the moving unit 18 may control the movement of the camera 16 according to the stereoscopic degree of the stereoscopic image desired by the user. That is, when the user desires a large three-dimensional effect, the first point P1 and the second point P2 are set as far as possible from the third point P3 so that the left eye image capturing position and the right eye image capturing of the camera 16 are taken. If the distance between the positions is increased and the user wants a small three-dimensional effect, the first point P1 and the second point P2 are set close to the third point P3, and the left eye image photographing position of the camera 16 is set. And the distance between the right eye image-taking position is reduced.

The moving unit 18 may move the camera 16 on a linear track, in which case one camera functions as a well-known parallel axis stereoscopic camera and a left eye image and a right eye image of a target object. To shoot. In addition, the moving unit 18 may move the camera 16 on a concave curved track toward the target object. In this case, one camera 16 functions as a three-dimensional camera of a known cross-axis method. Shoot the left eye image and the right eye image of the subject.

FIG. 5 is a schematic view showing one embodiment of a moving part when the camera moves on a straight track, and FIG. 6 is a schematic view showing one embodiment of a moving part when the camera moves on a curved track.

First, referring to FIG. 5, the moving unit 18 fixes the camera 16 and has a support 22 having a straight long side corresponding to the movement trajectory of the camera 16, and a rack formed on the back of the support 22. (rack, 24), a pinion (26) to rotate in engagement with the rack 24, and a motor 28 and a reducer (30) installed in the pinion (26) to drive it. The camera 16 is located at the center of the support 22, and this point may be the third point P3 for 2D image capturing.

Thus, when the user selects the 3D shooting mode, the pinion 26 is rotated forward by the driving of the motor 28 (see the solid arrow), and the camera 16 moves to the first point P1 by moving the position of the support 22. It is located and photographs the left eye image of the target object. Then, the pinion 26 is reversely rotated (see the dashed arrow) by the driving of the motor 28, and the camera 16 is located at the second point P2 by the position movement of the support 22. To shoot. At this time, the motor controller 20 controls the driving time of the motor 28 and the rotation speed of the pinion 26 accordingly to accurately position the camera 16 at the target point.

Next, referring to FIG. 6, the moving part 18 ′ supports the support part 22 ′ having a curved long side corresponding to the movement trajectory of the camera 16 while fixing the camera 16, and the back side of the support part 22 ′. It includes a rack 24 formed in the pinion 26 to rotate in engagement with the rack 24, the motor 28 and the reducer 30 is installed in the pinion 26 to drive it. In this case, the camera 16 is positioned at the center of the support 22 ', and this point may be the third point P3 for capturing the 2D image.

As described above, the stereoscopic imaging apparatus according to the present exemplary embodiment captures the left eye image and the right eye image of the target object by using the mobile camera 16, thereby minimizing the addition of complicated devices or functions, and the image for displaying the stereoscopic image. Can be taken, and the image capture unit 4 can be made compact and can be easily applied to a mobile device.

Meanwhile, although FIG. 1 illustrates a case where the stereoscopic image device of the present embodiment is applied to a cellular phone, the stereoscopic image device of the present embodiment may be applied to various types of mobile devices such as note PCs, digital cameras and camcorders as well as cellular phones. The present invention can be easily applied to conventional display devices such as televisions and monitors.

In addition, all the known display devices such as a cathode ray tube (CRT), a liquid crystal display (LCD), an organic light emitting diode (OLED), and a plasma display panel (PDP) may be applied to the image display unit 6 described above.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to

As described above, the stereoscopic imaging apparatus according to the present invention captures the left eye image and the right eye image of the target object by using a mobile camera, thereby easily capturing an image for displaying a stereoscopic image while minimizing the addition of complicated devices or functions. Can be. In addition, the stereoscopic image device according to the present invention can be easily applied to a mobile device since the image capturing unit can be miniaturized, and the stereoscopic image of the stereoscopic image can be arbitrarily adjusted according to a user's setting.

Claims (10)

Stereoscopic image display unit; And An image capturing unit configured to capture a left eye image and a right eye image of an object to obtain image information, and provide an image signal of a left eye image and an image signal of a right eye image to the stereoscopic image display unit; The image capture unit, camera; And A moving unit for moving the camera on the track connecting the first point and the second point by setting a first point for the left eye image capture of the target and a second point for the right eye image capture Including; The moving unit moves the camera on a linear track connecting the first point and the second point, The moving part is fixed to the support and has a linear long side corresponding to the movement trajectory of the camera, a rack (rack) formed on the back of the support, a pinion to rotate in engagement with the rack, it is installed on the pinion Stereoscopic imaging device comprising a motor for driving. delete delete Stereoscopic image display unit; And An image capturing unit configured to capture a left eye image and a right eye image of an object to obtain image information, and provide an image signal of a left eye image and an image signal of a right eye image to the stereoscopic image display unit; The image capture unit, camera; And A moving unit for moving the camera on the track connecting the first point and the second point by setting a first point for the left eye image capture of the target and a second point for the right eye image capture Including; The moving part moves the camera on a curved track connecting the first point and the second point, the curved track being concave toward the object to obtain image information. The moving part is fixed to the support and has a curved long side corresponding to the movement trajectory of the camera, a rack (rack) formed on the back of the support, the pinion (pinion) to rotate in conjunction with the rack, is installed on the pinion Stereoscopic imaging device comprising a motor for driving. delete The method according to claim 1 or 4, And the moving unit sets a third point for 2D photographing of an object for which image information is to be obtained at the center of the movement trajectory of the camera. The method according to claim 1 or 4, The moving unit further comprises a control unit for varying the distance between the first point and the second point according to the stereoscopic degree of the stereoscopic image desired by the user. The method according to claim 1 or 4, The stereoscopic image display unit may include an image display unit in which a plurality of sub-pixels corresponding to the left eye image and the right eye image are formed in an arbitrary pattern, and a slit-shaped light blocking unit and a light transmitting unit disposed on the front surface of the image display unit. Stereoscopic imaging device comprising a parallax barrier is arranged repeatedly with. The method according to claim 1 or 4, The stereoscopic image display unit may include an image display unit in which a plurality of subpixels corresponding to a left eye image and a right eye image are formed in an arbitrary pattern, and a plurality of lenticulars disposed on a front surface of the image display unit and corresponding to at least two subpixels. Stereoscopic imaging device comprising a lenticular lens sheet made of a lens. The method according to claim 1 or 4, A stereoscopic imaging device, wherein the stereoscopic imaging device is for a mobile device.

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