JP2001245324A - Method and device for generating stereoscopic image - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and device for generating a stereoscopic image with a simple configuration at a low cost without the need for a driver and an adapter, which can overcome various problems in a conventional technology. SOLUTION: This invention provides a method and device for generating a stereoscopic image 313 that employs a display unit 30, a video input unit 2 connected to the display unit 30 to supply an input video frame thereto, and a display controller means 33 connected to the display unit 30 to control the display unit 30 for a 1st field time thereby displaying the input video frame at a prescribed default start position 312 or a start position 311 deviated therefrom and to control the display unit 30 for a 2nd field time thereby displaying the input video frame at the prescribed default start position 312 or the start position 311 deviated therefrom. The video frames at the positions 311, 312 displayed for the 1st and 2nd field times form parallax to produce the stereoscopic video image 313.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to image generation.
In particular, the present invention relates to a method and an apparatus for generating a stereoscopic image.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional apparatus for generating a stereoscopic video from an input video frame.
A video input device, for example, a computer 11, a driver 12, an adapter 16, a display unit 15, and a pair of liquid crystal shutter glasses 1 in a VGA card 10.
7, the computer 11 is connected to a driver 12 to supply an input video frame, and the driver 12 separates the input video frame into a first video frame 13 and a second video frame 14 and Video frame 14
Are combined with the first video frame 13 with a relative shift through software. The adapter 16 is connected to the VGA card 10 to receive the first and second video frames, and outputs the first and second video frames to the display unit 15 for continuous display. Therefore, a stereoscopic image can be formed from the parallax generated between the first and second image frames 13 and 14 displayed on the display unit 15 by the pair of well-known liquid crystal shutter glasses 17.

However, the conventional three-dimensional image generating apparatus has the following disadvantages. 1. The driver is relatively complicated because the driver must always be compatible with the VGA card. 2. Since the first and second video frames are combined with each other, the resolution of the stereoscopic video is reduced by half. 3. Outputting the first and second video frames to the display unit requires an adapter, which is costly.

[0004]

That is, an object of the present invention is to provide a method and an apparatus for generating a stereoscopic image capable of overcoming the various disadvantages of the prior art.

[0005]

In order to achieve the above object, a method of generating a stereoscopic video according to the present invention is to convert a stereoscopic video from an input video frame including first and second field times that are continuous within a frame time. As a way to generate
(A). Providing an input video frame to a display unit; (b). Controlling the display unit to display an input video frame at one of a predetermined default start position and a start position shifted from the predetermined start position at the first field time; (c). Controlling the display unit to display the input video frame at the other of the predetermined default start position and the start position deviated therefrom at the time of the second field time. The apparatus for generating a stereoscopic image is an apparatus that generates a stereoscopic image from an input image frame including first and second field times that are continuous within a frame time, and is connected to a display unit and the display unit.
An image input means for supplying an input image frame, the display unit being connected to the display unit, and controlling the display unit at a first field time to control one of a predetermined default start position and a start position shifted therefrom Display controller means for displaying the input video frame at the second field time and controlling the display unit to display the input video frame at one of the predetermined default start position and the start position deviated therefrom; Or, in addition to the display unit, connected to the display unit,
An image input device for supplying an input image frame; and a display unit connected to the display unit to control the display unit in a normal mode so that the input image frame is set to a predetermined default start position at the time of the first and second field times. In the stereoscopic video mode, the display unit is controlled to control the input video frame at a predetermined default start position and a start position shifted from the predetermined default start position at the time of the first and second field times. And a display for controlling the display unit to display the input video frame at the other of the predetermined default start position and the start position shifted therefrom at the time of the first and second field times. A display controller including the controller The being operated in body image mode 1
And a stereoscopic image is formed by generating parallax in the video frame displayed at the time of the second field time.

The display controller means may include a processor including a register in connection with the video input means and the storage means, or the display controller may include a processor in connection with the selector unit, the video input device, and the data storage unit. More preferably, the display unit comprises a processor or a cathode ray tube (CRT), and the cathode ray tube is a color cathode ray tube.

According to the present invention having the above structure, when the display controller is operated in the stereoscopic video mode, the first and second video frames displayed at the first and second field times are disparity from each other. Can be formed to generate a stereoscopic image, and the stereoscopic image can be viewed through a pair of well-known liquid crystal shutter glasses including a signal generator and a receiver that receives infrared signals from both window portions described in the following embodiments. Can be.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be specifically described based on embodiments, but the present invention is not limited to these examples. FIG. 1 shows a first preferred embodiment of the present invention, which shows an apparatus for generating a stereoscopic video from an input video frame including first and second times that are continuous within a frame time. I have. The device includes a display unit 30, an image input device 2, a display controller 33, a selector unit 36, and a data storage unit.

The display unit 30 is a color cathode ray tube (CRT) display.

The image input device 2 can be connected to a display unit 30 and a display controller 33 to supply analog video signals of red, green and blue, and the image input device 2 also has horizontal and vertical synchronization. A signal can be supplied to the display controller 33 to control the start position of an input video frame in the display unit 30 and drive the frame time to the first and second field times.

The display controller 33 is connected to the display unit 30 to operate in a normal mode.
By controlling and operating the display unit 30, the input video frame can be displayed at a predetermined default start position at the first and second field times, and by controlling and operating the display unit 30 in the stereoscopic video mode. At the time of one field time, the input frame can be displayed at a predetermined default start position to form the first video frame 312, and at the time of the second field time, the input video frame can be displayed at the predetermined default start position. The second video frame 311 can be formed by being displayed at the position and the start position shifted therefrom.

The selector unit 36 is connected to the display controller 33 to control the operation of the display controller 33 by selecting either the normal mode or the stereoscopic image mode. 30 can be adjusted to a selected condition, such as a horizontal / vertical OSD position or brightness.

The data storage unit is, for example, an EEPR
The OM 37 is connected to the display controller 33 and stores an adjustable default start position and an adjustable start position deviating from the predetermined default start position. The display controller 33 controls the display unit 30 to display an input image frame at a predetermined start position corresponding to a predetermined adjustable default start position, and adjusts to a stereoscopic image mode. The input video frame is displayed at a start position corresponding to the adjustable start position deviated from the default start position.

In this embodiment, the display controller 33 includes a processor 332.
32 stores a predetermined default start position that is adjustable during a first field time, and a predetermined default start position during a second field time when the display controller 33 is operated in a stereoscopic video mode. A register 3320 for storing an adjustable start position deviating from the default start position, and a display controller 33 connected to the processor 332 and the display unit 30;
Controls the display unit 30 by processing the predetermined default start position that is adjustable in the stereoscopic video mode and the adjustable start position that is deviated from the predetermined default start position to control the first and second fields. A position shift circuit 331 for displaying the first and second video frames 312 and 311 during the time.

The apparatus still further comprises a synchronization signal generator 34 coupled to the display controller 33 to generate an infrared signal corresponding to the vertical synchronization signal.

When the display controller 33 is operated in the stereoscopic video mode, the first and second video frames 312 and 311 displayed during the first and second field times have a parallax between them. 3 to produce a stereoscopic image 313 shown in FIG. 3, which is viewed by a pair of liquid crystal shutter glasses 4 including the signal generator 34 and a receiver 43 receiving infrared signals from both window portions 41 and 42. Can be. The window portions 41 and 42 are alternately closed to allow a stereoscopic image 313 to be viewed. The clear details of the pair of liquid crystal shutter glasses 4 are conventionally known and do not belong to the emphasis of the present invention.

FIG. 2 shows a second embodiment of the device according to the invention.
This embodiment is a modification of the first embodiment. The difference from the first embodiment is that the processor 332 'included in the display controller 33' stores an adjustable predetermined start position. A first register 3321 and a second register 332 for storing an adjustable start position deviating from a predetermined default start position when the display controller 33 'is operated in the stereoscopic video mode.
By providing 2, it is not necessary to restore the contents of the first register 3321 when displaying the first and second video frames.

[0018]

As described above, the present invention does not require the above-mentioned driver or adapter, and can simplify the apparatus, reduce the cost, and overcome many disadvantages of the prior art.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of an electric circuit of a device according to a first preferred embodiment of the present invention.

FIG. 2 is a schematic block diagram of an electric circuit of a device according to a second preferred embodiment of the present invention.

FIG. 3 is a schematic view illustrating a process of forming a stereoscopic image according to the present invention.

FIG. 4 is a schematic block diagram of an electric circuit in a conventional stereoscopic video generation device.

[Explanation of symbols]

 Reference Signs List 10 VGA card 11 Computer 12 Driver 13 First video frame 14 Second video frame 15 Display unit 16 Adapter 17 Liquid crystal shutter glass 2 Video input device 30 Display unit 311 Second video frame 312 First video frame 313 Stereoscopic video 33 display controller 331 misalignment circuit 332 processor 3320 register 3321 first register 3322 second register 33 'display controller 332' processor 34 signal generator 37 EEPROM 41, 42 window part 43 receiver

Claims (16)

[Claims] 1. A method of generating a stereoscopic video from an input video frame including first and second field times that are continuous within a frame time, comprising the steps of: Providing an input video frame to a display unit; (b). Controlling the display unit to display an input video frame at one of a predetermined default start position and a start position shifted from the predetermined start position at the first field time; (c). Controlling the display unit to display the input video frame at the other of the predetermined default start position and the start position deviated therefrom during the second field time; A method of generating a stereoscopic video, wherein a video frame displayed at a second field time forms a parallax to generate a stereoscopic video. 2. An apparatus for generating a stereoscopic image from an input image frame including first and second field times continuous within a frame time, comprising: a display unit connected to the display unit; A video input means for supplying a frame, the display unit being connected to the display unit, and controlling the display unit at a first field time to input a predetermined default start position or a start position shifted therefrom; Display controller means for displaying a video frame and controlling the display unit at the second field time to display an input video frame at one of the predetermined default start position and the start position shifted from the predetermined default start position. Including, during the first and second field times, Generator of the stereoscopic video image frame to be displayed is as produce a stereoscopic image by forming a parallax. 3. The display controller means is connected to the image input means, and the image input means supplies horizontal and vertical synchronization signals to the display controller means, and the display controller means determines a start position of an input image frame. 3. The stereoscopic video generation apparatus according to claim 2, wherein the control is performed and the frame time is separated into first and second field times. 4. A storage means is connected to the display controller means, the storage means storing an adjustable predetermined start position and an adjustable displacement start position, and the display controller means controlling a display unit. Displaying the input video frame at the predetermined start position corresponding to the adjustable predetermined start position, and controlling the display unit to input the input image frame at the start position of the corresponding displacement of the adjustable displacement start position. The stereoscopic video generation device according to claim 2, wherein a frame is displayed. 5. The display controller means including a processor having a register, the register storing the adjustable predetermined start position at a first field time, and a second field time at a second field time. 5. The three-dimensional image generating apparatus according to claim 4, wherein a start position of the adjustable displacement is stored. 6. The display controller means comprises a processor having a first register for storing the adjustable predetermined start position and a second register for storing the adjustable displacement start position. The stereoscopic video generation device according to claim 4. 7. The apparatus according to claim 2, wherein the display unit is a cathode ray tube (CRT) display. 8. The apparatus according to claim 7, wherein the cathode ray tube display is a color cathode ray tube display. 9. An apparatus for generating a stereoscopic image from an input image frame within a frame time including continuous first and second field times, the apparatus comprising: a display unit; An image input device for supplying a frame; and a display unit connected to the display unit, the display unit being controlled in a normal mode to control the first and second display units.
In the stereoscopic video mode, the input video frame is displayed at a predetermined default start position at the time of the field time, and the display unit is controlled to start the input video frame at the predetermined default at the first and second field times. The display unit is displayed at one of the position and the start position shifted from the predetermined default start position, and the display unit is controlled to shift the input video frame to the predetermined default start position at the time of the first and second field times. And a display controller for displaying at the other of the start positions deviated therefrom, whereby the display controller is displayed at the time of the first and second field times when the display controller is operated in the stereoscopic video mode. Do not allow video frames to form parallax to produce stereoscopic video. 3D image generation device. 10. The stereoscopic image according to claim 9, wherein a selector unit is connected to the display controller, and the operation of the display controller can be selected between a normal mode and a stereoscopic image mode by the selector unit. Generator. 11. The display controller is connected to the image input device, and the image input device supplies horizontal and vertical synchronization signals to the display controller. The display controller controls a start position of an input image frame. The stereoscopic video generation apparatus according to claim 10, wherein the frame time is separated into first and second field times. 12. A data storage unit connected to the display controller, the data storage unit storing an adjustable predetermined start position and an adjustable displacement start position, and the display controller controlling the display unit. The input video frame is displayed at a predetermined start position corresponding to the adjustable predetermined start position, and when the display controller is operated in the stereoscopic video mode, the display controller controls the display unit. The stereoscopic video generating apparatus according to claim 10, wherein an input video frame is displayed at a start position of the displacement corresponding to the start position of the adjustable displacement. 13. The display controller,
A processor comprising a register, the register storing the adjustable predetermined starting position at a first field time, and a second when the display controller is operated in a stereoscopic video mode. 13. The stereoscopic video generation device according to claim 12, wherein a start position of the adjustable displacement is stored at the time of a field time. 14. The display controller,
A processor comprising: a first register for storing the predetermined adjustable start position; and a second register for storing the start position of the adjustable displacement when the display controller is operated in the stereoscopic video mode. The stereoscopic video generation apparatus according to claim 12, comprising: 15. The apparatus according to claim 9, wherein the display unit is a cathode ray tube (CRT) display. 16. The stereoscopic image generating apparatus according to claim 15, wherein the cathode ray tube display is a color cathode ray tube display.