Technical Information

Already Confirmed 3D Capable Televisions

  • JVC GD-463D10 (on the side-by-side method)
  • Panasonic 3D VIERA (VT series TH-P54VT2, TH-P50VT2) (on the side-by-side method)

We are going to verify those new 3DTV, which will be put on the market in the future.
The information will be updated as soon as we confirm.

You can enjoy three-dimensional images with anaglyph method on those non-3D capable televisions.*

* A pair of red-cyan glasses is required to play this game for 3D effect.

3DInfinity supports both side-by-side method and anaglyph method.
For your information, its' resolution is 1280x720.

Creating Three-Dimensional Images

It's important to adjust a camera setting to obtain a three-dimensional effect. Until now, the camera settings generally tended to emphasize "pop-out" effects from displays. This setting sometimes produced broken "pop-out" images. But, the recent trend is to aim for gaining a depth. In order to do this, the images won't break out or gives players intense transitions. People prefer its depth-based natural three-dimensional appearances. The excessive "pop-out" images might give you a big impression, but watching it for hours makes your eyes get tired easily.

In 3D-Infinity, the camera setting is based on the advice of Professor Yamamoto who researches into three-dimensional images in Hokkaido University, and is adjusted to get an ideal "point of gaze" and "parallax" for anaglyph method and side-by-side method.

The Mechanism of Video Signals and Video Outputs

Different types of signal systems have been used to establish recent television systems; one is on the video signals which represent game consoles and/or radio waves emitting data and the other is on the video equipments which symbolize televisions or the other machineries displaying three-dimensional images. The fact is that even if video consoles don't carry the 3D output capability, the video signals can produce 3D data. But, the video equipments need to have the ability to manipulate the three-dimensional effect.

In 3D-Infinity, It can produce the side-by-side method output through Xbox 360. It is unable to create field sequential system, which loaded on recent 3D-capable televisions from several companies as a standard function. But you would obtain 3D images if your television is capable of the side-by-side method output.

image

Types of Video Signal Outputs

The video output of game consoles, radio waves and 3D data are called the video signals. On the market, there are five types of video signal outputs are recognized.

1) Anaglyph Method

It is an output method of combining two different colored pictures into one picture. Red and cyan are used as most common colors to filter each eye. On ordinary televisions, a red-component channel and a cyan-component channel appear as a combined image but a little bit off position. This method has been used for a long time in 3D theaters and such. Relatively, red-cyan glasses are easy to get, so three-dimensional experiences are right in front of you.
There is no deterioration in the image resolution. But this method cannot reconstruct full-color 3D images.

2) Side-by-side method

This method is outputting two horizontally compressed pictures "side-by-side" as one picture. The display is divided into halves vertically, and those two images are almost the same. Already, some other television companies have used this method for broadcasting their programs. Therefore, 3D capable televisions in future will have this function as a standard.
There is a half percentage of horizontal deterioration in the image resolution comparing to the original pictures.

3) Above-below method

It is almost the same method as the side-by-side, but it is divided into halves horizontally as a top and a bottom.
There is a half percentage of vertical deterioration in the image resolution comparing to the original pictures.

4) Line-by-line method

This output system produces two different images on each even-numbered line and each odd-numbered line. To obtain an ideal three-dimensional effect, the video equipment has to be efficient for the line-by-line method and it has to be adjusted to the correct setting.
There is a half percentage of vertical deterioration in the image resolution comparing to the original pictures.

5) Field sequential method

Other methods create images in 1/60 second each, but this method can develop images in 1/120 second each. From that effort, it can produce one image for a right eye and the other image for a left eye in 1/60 second. Both video consoles and cables need to handle this high spec condition for ideal outputs.
There is no deterioration in the image resolution.

In 3D-Infinity, both the anaglyph and the side-by-side method are available.

Types of 3D Capable Television Outputs

3D capable televisions as hardware have some output methods to project three-dimensional images.

1) Field sequential (FS) method

This method is loaded on Panasonic 3D VIERA (VT series), SONY BRAVIA (LX900) and the others.

Ordinary televisions switch images in 1/60 second each, but the FS method changes images in 1/120 second each. So it can produce one image for a right eye and the other image for a left eye in 1/60 second. These data are sent to viewers' glasses and the right side images and the left side images appear alternately in a high speed to present a three-dimensional effect.

Advantage
  • The FS method can produce high speed image replacements comparing to traditional televisions, so it could preserve a full HD resolution to project three-dimensional images.
Disadvantages
  • A pair of glasses, which have electronics and need power, is required for this method. These active glasses tend to be weighty and expensive.
  • The projected images tend to be darker, because both the right side images and the left side images appear alternately in a high speed.*

* This problem has been already solved by turning the brightness up.

2) Xpol® method (Line-by-line method)

This method has been arranged on JVC Full Hi-Vision 3D flat panel GD-463D10 for business use and the other televisions.

Each even-numbered line and each odd-numbered line correspond to two different images. There is a special filter, which is called the Xpol® filter and it's registered with a Japanese company, attached on the surface of its display. There are Xpol® filtered glasses to capture corresponded images for each eye, such as the right eye catches even-numbered line images or vice-versa. This filter makes true three-dimensional images possible.

Advantages
  • There is no special function required, because outputting one image in 1/60 second is commonly used video signal system.
  • A pair of glasses for this method requires no electronics and the power. Therefore, these passive glasses are light and inexpensive.
  • The images are fixed on corresponded lines, so the three-dimensional images are bright and have less flickering.
Disadvantage
  • There is a half percentage of vertical deterioration in image resolution comparing to the original pictures.

3D-Infinity runs on Xbox 360 consoles to produce output data, so the technologies of the video equipments are developing independently.

* Xpol is a registered trademark of Arisawa Manufacturing Co. Ltd.

About Our Next Steps for the Future

We are verifying our game output with the full HD (1920x1080) to check its operation using the line-by-line method on the JVC monitors, but it haven't finished checking it thoroughly to insert on the game. Therefore, also with the above-below method and the other methods, we are going to continue corroborating those latest 3D capable televisions and we will update the data as soon as possible when those methods are efficient to our system.

We have received some demands for the "CONTINUE" segment, but we are afraid we cannot meet your request at present, because of eyestrain from a long play. Our goal is developing considerate systems for your health, for instance, introducing some components of intermissions or recesses in the middle of the game.

New developing system will be assembled together which based on achieved knowledge from 3D-Infinity. Don't miss our next breakthrough and we know it's worth waiting!






3D∞ available in Xbox Live Marketplace3D∞Xbox Live Marketplace