JP2007333929A - Video display system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video display system which prevents, when an image photographed and recorded by a video recorder is observed with a video display device, the image from inclining and becoming unnatural. <P>SOLUTION: When photographing is carried out with a digital camera 6 while inclined, an inclined scenery is displayed on an LCD display 6a. This image is subjected to an angle correction according to the detection angle of a rotation detector incorporated in the digital camera 6 and displayed on a display part 5. Consequently, the image is displayed as shown in Fig.(C). The image is displayed so as to be vertically and horizontally identical to the image of the actual space. Consequently, even if the digital camera 6 inclines, a natural image can be seen by the human eyes. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a video display system.

  Digital cameras and digital video cameras are convenient because they usually have an LCD panel on the outside and can shoot with their eyes away from the camera. there were. In addition, when performing macro photography or the like, when photographing a subject near the ground, the photographer looks at the LCD panel from an angle, and depending on the orientation, the video may not be visible, and the composition is limited. It was.

In order to solve such problems, the head-mounted display and these cameras are combined, and the camera is capturing an image (before the shutter is opened) or the recorded image is recorded on the head-mounted display. A method for displaying on a display device is described in JP-A-9-18756 (Patent Document 1).
JP-A-9-18756

  However, in the method described in Patent Document 1, when the camera is tilted or the frame position is shot in the vertical position (the camera is tilted by 90 ° from the normal shooting posture), it is displayed on the head mounted display. There was a problem that the image was displayed tilted.

  This is shown in FIG. The head mounted display 1 is provided at two headphone housings 2, a connecting portion 3 for connecting them, a display arm 4 coupled to one headphone housing 2, and a tip of the display arm 4. The display unit 5 is configured to display an image on human eyes. The connecting portion 3 has elasticity, and the head mounted display 1 is mounted so that both ears are sandwiched between the headphone housing 2 by this elasticity.

  An image being captured or captured by the digital camera 6 is sent to the head mounted display 1 via the cable 7 and displayed on the display unit 5. The video displayed on the display unit 5 is the same as that displayed on the LCD display unit 6 a of the digital camera 6.

  Now, as shown in FIG. 4, when photographing is performed with the digital camera 6 tilted, the scenery is displayed on the LCD display unit 6a with an inclination. Therefore, on the display unit 5 of the head mounted display 1, the scenery that should originally be displayed as B is tilted and displayed as A, which is unnatural and difficult to see.

  The present invention has been made in view of such circumstances, and an image in which an image is not inclined and unnatural when an image captured and recorded by a video recording device is observed by a video display device. It is an object to provide a display system.

  The first means for achieving the above object is to record a video recording device that records a video captured and recorded on a storage medium, and a video that is mounted on a head and is captured by the video recording device. A video display device that is formed by video forming means and displays the image by projecting it on the eye, the video recording device and the video display device are connected by wire or wirelessly, and the video recording device captures a video A rotation detection mechanism that detects rotation about the optical axis direction of the photographing lens is provided, and an image formed by the image forming unit is formed by rotation according to rotation angle information obtained from the rotation detection mechanism. This is a video display system characterized by this.

  The second means for solving the problem is the first means, characterized in that the rotation angles of the images formed by the image forming means are 90 ° intervals. .

  The third means for solving the above-described problems includes a video recording device that captures a video and records the video captured on a storage medium, and a video that is attached to the head and recorded by the video recording device. A video display device that is formed by video forming means and displays the image by projecting it on the eye, the video recording device and the video display device are connected by wire or wirelessly, and the video recording device captures a video It has a rotation detection mechanism that detects rotation about the optical axis direction of the photographic lens, and records the rotation angle obtained from the rotation detector when the image is captured together with the captured image. The video display system is characterized in that the video formed by the forming means is rotated and formed in accordance with the rotation angle information recorded therewith.

  A fourth means for solving the above problem is the third means, characterized in that the rotation angles of the images formed by the image forming means are 90 ° intervals. .

  ADVANTAGE OF THE INVENTION According to this invention, when observing the image image | photographed and recorded with a video recording apparatus with a video display apparatus, an image display system which an image does not incline and becomes unnatural can be provided.

  Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an outline of a video display system which is an example of an embodiment of the present invention. A speaker SP is attached to each of the headphone housings 2 of the head mounted display 1 that is a video display device, and a CPU, an LCD (Liquid Crystal Display) driver, and a BL (Backlight) driver are provided on one of them. It has been. A display arm 4 is attached to one headphone housing 2, and a display 5 is attached to the tip thereof. The display unit 5 is provided with an LCD as a video forming device and a backlight BL.

  On the other hand, the digital camera 6 as a video recording device is provided with a main CPU, SDRAM, flash memory, and control buttons, and an LCD for displaying a video that is being shot or has been shot (recorded). Further, a rotation sensor that detects rotation about the optical axis direction of a photographing lens that captures an image is provided. The optical system of the digital camera 6 is not shown. The head mounted display 1 and the digital camera 6 are coupled by the wireless interface RF, but may be connected by a cable.

  The video displayed on the LCD of the digital camera 6 is sent to the head mounted display 1 as a video rotated by the image processing of the main CPU according to the detection angle of the rotation detector and displayed on the LCD of the display unit 5.

  That is, when the digital camera 6 is taking an image (that is, when an image is being displayed on the LCD at any time before the shutter is opened and the image is captured), the rotation displayed on the image of the digital camera 6 is detected at that time. The angle is corrected according to the detection angle of the device, converted into an image in which the vertical and horizontal directions of the actual space are aligned with the vertical and horizontal directions, sent to the head mounted display 1 and displayed on the LCD of the display unit 5.

  When displaying an image that has already been taken and recorded on the LCD of the digital camera 6, the angle is corrected according to the detection angle of the rotation detector recorded at the time of capturing the image, and the space is aligned vertically and horizontally. The image is converted to an image as shown in FIG.

  In the above description, the angle correction is performed by the main CPU of the digital camera 6. However, the image information and the detected angle information are sent to the head mounted display 1, and the angle correction is performed by the CPU of the head mounted display 1. May be.

  FIG. 2 shows a specific display example. In the following drawings, the same components as those shown in FIG. 4 are denoted by the same reference numerals, and the description thereof is omitted. FIG. 2 shows a state in which imaging is performed with the digital camera 6 tilted, as in FIG. At this time, the landscape is tilted and displayed on the LCD display section 6a.

  As described above, the image is corrected on the basis of the detection angle of the rotation detector and displayed on the display unit 5. For this reason, the display image is as indicated by C in FIG. 2. When the image is viewed, the actual space and the top, bottom, left and right are displayed as the same image as D. Therefore, even when the angle of the digital camera 6 is tilted, the image shown in the human eye becomes natural.

  When actually taking an image with the digital camera 6, the digital camera 6 is used in a horizontal (horizontal) state, which is a normal use state, or in a vertical (vertical) state rotated 90 ° therefrom. . FIG. 3 shows an image state when the digital camera 6 is used in a vertical state. Also at this time, the image displayed on the display unit 5 is angle-corrected according to the detection angle of the rotation detector, and is displayed as the same image F in the actual space as in E.

  Since the use state of the digital camera 6 is almost horizontal or vertical, the rotation angle between the LCD display unit 6a and the image displayed on the display unit 5 may be 90 ° pitch. That is, when the detection angle of the rotation detector is within ± 45 °, the image is not rotated, and when it exceeds ± 45 °, the image on the LCD display unit 6a is rotated by ± 90 ° and the display unit 5 is displayed. In this way, the rotation angle detection mechanism can be simplified and the display rotation can be simplified.

It is a figure which shows the outline | summary of the video display system which is an example of embodiment of this invention. It is a figure which shows the specific example of the video display with a head mounted display. It is a figure which shows the specific example of the video display with a head mounted display. It is a figure which shows the problem of a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Head mounted display, 2 ... Headphone housing, 3 ... Connection part, 4 ... Display part arm, 5 ... Display part, 6 ... Digital camera, 6a ... LCD display part, 7 ... Cable

Claims (4)

  A video recording device that captures the video and records the video captured on the storage medium; and a video that is mounted on the head and is captured by the video recording device is formed by video forming means and projected onto the eye A video display device for displaying, and the video recording device and the video display device are connected by wire or wirelessly, and the video recording device detects rotation about an optical axis direction of a photographing lens for taking a video. An image display system comprising: a rotation detection mechanism configured to rotate the image formed by the image forming unit according to rotation angle information obtained from the rotation detection mechanism.   2. The video display system according to claim 1, wherein a rotation angle of the video formed by the video forming unit is 90 [deg.].   A video recording device that captures the video and records the video captured on the storage medium, and a video that is mounted on the head and recorded by the video recording device is formed by video forming means and projected onto the eye A video display device for displaying, and the video recording device and the video display device are connected by wire or wirelessly, and the video recording device detects rotation about an optical axis direction of a photographing lens for taking a video. A rotation detection mechanism that records the rotation angle obtained from the rotation detector when the image is captured, together with the captured image, and the image formed by the image forming means is recorded therewith. An image display system formed by rotating according to the rotation angle information. 4. The video display system according to claim 3, wherein a rotation angle of the video formed by the video forming unit is 90 [deg.].

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