JPH08184411A - System for producing two-dimensional image signal from three-dimensional image - Google Patents

Abstract

PURPOSE: To obtain a system for producing the two-dimensional signal of a three-dimensional image in which a three-dimensional data can be handled easily as an image signal while keeping compatibility with a conventional two-dimensional signal processing system over the entire process for capturing, storing, processing the image signal, and reproducing the three-dimensional data. CONSTITUTION: When the image of a three-dimensional object is picked up by means of a TV camera, the TV camera captures a 'plane image signal' and, at the same time, converts the data of distance between the image pickup point and a currently scanning object into an image level signal to produce a 'depth image signal'. Under 'memory' mode, two types of image signal comprising the 'plane image signal' and the 'depth image signal' are recorded by means of two synchronized VTRs or a VTR which can record two image signals simultaneously.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a two-dimensional image of a three-dimensional image which can be easily handled as a video signal in all processes of taking in, storing, processing a video signal and reproducing when handling three-dimensional data. The present invention relates to a video signal conversion method.

[0002]

2. Description of the Related Art Conventionally, when a three-dimensional real image is treated as an electric video signal, a so-called "scanning" method as shown in FIG.
I was recording and playing. In this case, for example, the capturing is performed by a television camera, the recording is performed by a video tape recorder (hereinafter referred to as VTR), and the reproduction is performed by a television receiver.

Further, when there is a three-dimensional image in the computer, the two-dimensional image signal is reproduced and output as if it were viewed from a certain point.

[0004]

However, in this conventional 2D image signal conversion method for 3D images, only 2D data can be obtained even if an image of a 3D object is obtained. When processing is performed, it cannot be restored as three-dimensional data, and there is a problem that processing with computer graphics (hereinafter, referred to as CG) data is only two-dimensional processing.

When a three-dimensional object is handled in CG and three-dimensional real image data processing, even though a three-dimensional real image is held inside the computer for processing, a two-dimensional object is displayed when it is displayed on a CRT display device. I had no choice but to output it as a video signal.

An object of the present invention is to maintain compatibility with a conventional 2D video signal processing system in all processes such as capturing, storing, video signal processing and reproducing when handling 3D data. It is an object of the present invention to provide a two-dimensional video signal conversion system for a three-dimensional video that can easily handle three-dimensional data as a video signal.

[0007]

According to the present invention, a three-dimensional image captured by a television camera is captured and stored as a video signal, and the three-dimensional image is processed and reproduced into a two-dimensional video signal. In the system, in addition to the plane video signal taken by the television camera, a capturing means for simultaneously capturing a depth video signal obtained by converting distance data from a predetermined reference point to the three-dimensional object to a video signal level, and the capturing means. Recording means for synchronously recording two types of video signals, which are the flat video signal and the depth video signal taken in by the means, and the flat video signal and the depth video signal read from the recording means, In addition to processing means for performing three-dimensional processing using materials obtained by restoring three-dimensional data from various types of video signals and reproducing means for displaying only the plane video signal, the processing A two-dimensional video signal of a three-dimensional video having a reproducing means for converting a three-dimensional image three-dimensionally processed by a stage into two types of video signals composed of the plane video signal and the depth video signal and outputting the two types of video signals. Can be obtained.

According to the invention, the recording means is
A two-dimensional video signal conversion system for three-dimensional video is obtained, which is characterized by being two video tape recorders that are synchronized or a video tape recorder that can simultaneously record two video signals.

That is, in the method of converting a 3D image into a 2D image signal according to the present invention, in "capturing", a "planar image signal" and a "depth image signal" are picked up when a 3D object is picked up by a TV camera. A capturing means for capturing at the same time and, in the case of “storage”, two types of video signals consisting of a “planar video signal” and a “depth video signal”, two synchronized video tape recorders or two video signals at the same time. 3 from recording means for recording with a recordable video tape recorder and, in “video signal processing”, two types of video signals consisting of “planar video signal” and “depth video signal” input to a computer for video signal processing Processing means for performing three-dimensional processing using the restored three-dimensional data as a material, and for "playback", playback means for displaying a "planar video signal" on a normal TV monitor. In addition, when there is a three-dimensional image in the computer such as CG, a reproducing means is provided for converting the three-dimensional image into two types of image signals consisting of a "planar image signal" and a "depth image signal" and outputting them. It is a thing.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIG.

FIG. 1 is a diagram for explaining the concept of a method of replacing distance data from a photographing point to an object with a video level signal, which is a characteristic part of the present invention.

First, at the time of the above-mentioned "capturing", FIG.
In the case of shooting a three-dimensional object with a TV camera,
As in the past, the TV camera captures a "planar image signal", and at the same time, converts the distance data from the shooting point to the object currently being scanned into an image level signal and captures it as a "depth image signal".

Next, at the time of "storage", two kinds of video signals consisting of "planar video signal" and "depth video signal" can be recorded in two synchronized VTRs or two video signals at the same time. Record on VTR.

Further, at the time of "video signal processing",
The "plane video signal" and the "depth video signal" are simultaneously read into the computer for video signal processing. in this case,
"Plane image signal" on the XY coordinates, "Depth image signal"
3D real image data can be restored in the computer by substituting the Z coordinate for each dot. Using this as a material, the so-called "metamorphose" etc. 3
The processing of the three-dimensional real image data is performed.

Next, at the time of "playback", if there is a three-dimensional image in the computer such as CG, in addition to the playback means for displaying the "planar video signal" on the normal TV monitor, this is called "reproduction". "Plane video signal" and "Depth video signal"
The video signal is converted into two types of video signals and output.

As described above, in this embodiment, for example, when the image processing is performed between the image signal of a three-dimensional object imaged by the television camera and the three-dimensional data for CG, the imaged object is originally 3D data you have, for example,
Processing that takes advantage of distance and depth can be performed.

In addition, for example, in an effect such as a CM in which a car smoothly changes to a tiger, a TV CM or the like has recently attracted a viewer's attention,
There is a video processing method called "morphing", but this is a video processing processing between two-dimensional video signals or between two-dimensional video signals and two-dimensional data. The above-mentioned "metamorphosis" is a video processing process that handles data three-dimensionally by adding data in the depth direction. In this embodiment,
The imaged data can be given as three-dimensional data as a material of the "metamorphosis" to a computer for processing.

Further, in the present embodiment, when there is a three-dimensional image in the computer, this can be converted into two types of video signals consisting of "planar video signal" and "depth video signal" and output. It is possible to easily record a three-dimensional image.

[0019]

According to the present invention, compatibility with the conventional two-dimensional video signal processing system is maintained in all processes such as capture, storage, video signal processing and reproduction when handling three-dimensional data. Three-dimensional data can be easily handled as a video signal.

Therefore, it is possible to provide a two-dimensional image signal conversion system for a three-dimensional image which is efficient and easy to use.

[Brief description of drawings]

FIG. 1 is a diagram for explaining the concept of a method of replacing distance data from a shooting point to an object with a video level signal at the time of “capturing” in the embodiment of the present invention.

FIG. 2 is a diagram showing a conventional general two-dimensional image scanning method.

Claims (2)

[Claims] 1. A two-dimensional video signal conversion system for a three-dimensional video image, in which a three-dimensional object imaged by a television camera is captured and stored as a video signal, and the video signal is processed and reproduced.
In addition to the plane image signal taken by the television camera, a depth image signal obtained by converting distance data from a predetermined reference point to the three-dimensional object into an image signal level at the same time, and an acquisition unit. Recording means for synchronously recording two types of video signals composed of the flat video signal and the depth video signal, and the two types of video by reading the flat video signal and the depth video signal from the recording means. In addition to a processing means for performing three-dimensional processing using a material obtained by restoring three-dimensional data from the signal and a reproducing means for displaying only the two-dimensional video signal, a three-dimensional image three-dimensionally processed by the processing means is used as the two-dimensional video signal. A two-dimensional video signal conversion system for a three-dimensional video, comprising a reproducing means for converting and outputting two types of video signals composed of the depth video signal. 2. The two-dimensional image signal conversion system for a three-dimensional image according to claim 1, wherein the recording means is synchronized with each other.
A two-dimensional video signal conversion system for three-dimensional video, characterized by a single video tape recorder or a video tape recorder capable of simultaneously recording two video signals.