KR100719101B1 - Real-time multilayer image synthesis recording system and method, and the store device which records a method - Google Patents

Abstract

The present invention relates to a real-time multilayer image composite recording system and method, and a recording medium on which the method is recorded.

More specifically, in an integrated system for producing a multimedia CD by synthesizing a 3D video and an alpha channel in real time, a chroma channel, which is a background separated image, is synthesized on an input video and synthesized with a real time alpha channel that responds to sound. Image synthesizing means for converting and compressing a multi-layer video into a video file and an audio file, and recording means for recording the video file and audio file and a control program for selectively controlling the video file and the audio file on a storage medium in real time. A real-time multilayer image synthesizing system and method comprising an integrated image synthesizing apparatus comprising a and a control apparatus for remotely controlling the image synthesizing means and recording means, and a recording medium on which the method is recorded.

Multilayer, transition, alpha channel, 3D multilayer, streaming, chroma key

Description

Real-time multilayer image synthesis recording system and method, and the store device which records a method}

1 is a view showing the overall configuration of a real-time multi-layer composite image recording system according to an embodiment of the present invention.

2 is a block diagram illustrating an internal block configuration of an image synthesizing apparatus according to the present invention.

3 is a block diagram of a program included in the image synthesizing means according to the present invention.

4 is a flowchart illustrating a real-time multilayer image composite recording method according to an exemplary embodiment of the present invention.

*** Explanation of symbols for main parts of drawing ***

100: input device 200: video synthesis device

210: image synthesis means 211: background image input unit

212: camera source input unit 213: 3D special effects unit

214: audio source input unit 215: system control unit

216: video synthesis unit 217: voice recognition unit

218: file compression conversion unit 250: recording means

252; Sensor light emitter 254: Sensor light receiver

256: detection circuit 258: control unit

290: Project D / B 291: Project Analysis Module

292: image control module 293: special effect generation module

294: scene change processing module 295: still image processing module

296: video sound combination module 297: recording processing module

300: control device

The present invention relates to a real-time multilayer image composite recording system and method, and a recording medium on which the method is recorded.

More specifically, it is synthesized with the chroma channel, which is a video and background separated image, generated using image input devices such as green screen, general screen, CCD camera, web camera, and sound input device (microphone, audio system, MP3, flexible half cycle). The present invention relates to a real-time multi-layered composite image recording system and method for real-time production of a 3D multi-layered multimedia multimedia CD synthesized with an alpha channel generated in response to a sound inputted to the sound, and a recording medium on which the method is recorded.

In general, as the computing power of the Internet, a high-speed communication network, and a computer develops, a multimedia implementation form through a video taken by a camera or a camcorder is rapidly diversifying, and the video is stored in various storage media for information. Its importance is increasing as a medium of transmission.

Meanwhile, as a technique for producing such a video, a background image and a subject model are synthesized using a chroma-key technique. The chroma key technique is a special effect that uses color difference to electrically synthesize the screen. It creates a keying signal from the three primary colors of RGB (red, green, blue) of a television camera. Use complementary blue as the filter color. First, the output of a camera photographing a blue background and a subject in front of it is divided into two level signals and applied as control voltages of two gate circuits. Next, the subject part is extracted from the camera output of the background image and combined with the output of the front camera by a mixing circuit.

All of these technical processes are performed in electronic circuits, and can be synthesized instantaneously with only a switch operation. Image synthesis based on the same principle is performed using color film in film production, which requires a few days of work schedule and high skill.

However, this video production technique works by incorporating software into the video capture board, which is merely a function of the video capture board function that is available in the existing video market, and the existing video file is a completed one by itself. Due to the fact that it consists only of video data, it was only possible to play after completing the video file.

Of course, the editing of the video file was not impossible, but also when the second video was played after the second file was edited, the editing process was also the same process of completion and playback. There was a drawback that the quality and sound quality of the generated video are not clear.

In addition, although there are a lot of equipment and software for making videos with computers, it is very difficult for non-specialists to make videos, and the equipments also need to build a separate equipment such as a camera image processing device and a sound processing device. Due to this, there are disadvantages of cost and space limitation, and there are also functional problems that require real-time control, editing, and playback of video files for various industrial applications, but they cannot be implemented.

The present invention has been made to solve the above-described problems, a three-dimensional multilayer having a plurality of layers finally by adding a layer of an alpha channel in response to the sound to a video file in real time and synthesize a chroma channel as a background separation image It is an object of the present invention to provide a real-time multi-layer composite image recording system and method for synthesizing a video in real time and recording on a storage medium for playback on various playback devices,

Another purpose is to convert and compress a 3D multi-layer video into a video file and an audio file, and then record a control program that can be selectively executed regardless of the playback device when recording to the storage medium. To provide a real-time multi-layer composite recording system and method that can be implemented,

It is another object of the present invention to provide a real-time multi-layered composite image recording system and method that enables anyone to easily create a 3D multi-layered video having a smooth image quality and sound quality by combining a hardware generated by a hardware with software in real time. There is a purpose.

As described above, an integrated system and method for producing a multimedia CD by synthesizing a 3D video and an alpha channel in real time, and a recording channel on which the method is recorded, synthesizes a chroma channel, which is a background separated image, into an input video. Image synthesis means for generating a 3D multilayer video by synthesizing with a real-time alpha channel responsive to sound, and converting and compressing the video file into an audio file, and selectively converting the video file and the audio file and the video file and the audio file. A system comprising an integrated image synthesizing apparatus comprising recording means for recording a control program to be controlled on a storage medium in real time, and a control apparatus for remotely controlling the image synthesizing means and recording means;

(a) selecting a pre-stored project file in which a video story is designed, and (b) receiving a user's image and sound, and setting a preset background, scene change, still picture, and 3D according to the project content. Generating a video file by synthesizing three-dimensional images, (c) generating a three-dimensional multilayer video by real-time synthesizing a real-time alpha channel responsive to sound in the video file, and (d) real-time generating the three-dimensional multilayer video. And converting and compressing the video file into a temporary storage space and detecting the end of the control signal, copying and converting the video file into an audio file, and (e) converting the video file and the audio file into a control program. Provided is a method comprising the steps of recording to a real-time storage medium together,

(A) A function that allows a user to select a pre-stored project file for which a video story is designed or to design and save a video story using a project program, and (B) Inputs using a plurality of cameras and sound input devices. (C) a function of separating and processing a user's video and sound data into a video and sound; and (C) a preset background, scene change effect, still picture processing, and 3D according to the input user's video and project contents. A function of generating a video file by synthesizing a stereoscopic effect, (D) a function of generating a final rendered 3D multilayer video file by combining the video file and various alpha images in response to an input sound, and (E) After converting the final rendered 3D multilayer video file into a streaming file which is a video file, (F) automatically detects the end signal, automatically copies and converts the video file to an audio file, and selectively executes the video file and the audio file on a playback device. It is achieved by providing a recording medium having recorded thereon a program for realizing a function of recording on a storage medium together with a control program.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a real-time multilayer image composite recording system and method according to an exemplary embodiment of the present invention, and a recording medium on which the method is recorded will be described in more detail.

1 is a view showing the overall configuration of a real-time multi-layer composite image recording system according to an embodiment of the present invention. In more detail with reference to Figure 1,

The real-time multi-layer composite image recording system of the present invention comprises an image synthesizing apparatus 200 and a control apparatus 300 for controlling the integrated system.

The image synthesizing apparatus 200 is used in a conventional karaoke consisting of an image processing apparatus for separately processing the image input to the camera, a sound processing unit for receiving the sound separately, a synthesis apparatus for synthesizing the image and sound, etc. It is composed of an image synthesizing means 210 and a recording means 250 as an integrated system that improves the video quality and improves the sound quality and image quality while reducing spatial constraints.

The image synthesizing unit 210 receives an image of a user's dance, accompaniment, etc. photographed by various input devices 100 such as a green screen, a general screen, a CCD camera, a web camera, etc. Various background images such as fairy tale backgrounds, stage backgrounds and special backgrounds, 3D special effects, and unique scene transitions applied with the mathematical algorithm of the present invention, and Soft Chroma-Key, a background separation image technique, is applied in real time. Create a video, and synchronize the alpha channel (α-channel) such as transparent, translucent, opaque, etc. generated in response to the sound input by the microphone, audio system, MP3, flexible half cycle, etc. Create 3D multi-layer video and convert the 3D multi-layer video to video file and audio file by applying streaming technology, which is a unique format. It serves to compress.

The Soft Chroma-Key technique is a technique applied to the present invention by further improving the Soft Chroma-Key technique. When the chroma key is used in the conventional method, it is divided into a blue component at the boundary of the synthesized part. Synthesis seems unnatural, such as jitter or the blue component covering the key to obtain the key signal.

However, in the present invention, by using the large wave inclined to the key signal by paying attention to the dissolveability of the image waveform, and by using a circuit to eliminate the color fogging, the natural screen synthesis without jitter or blue fogging is achieved. Key signals change due to changes in lighting conditions, subject changes, etc., and a circuit for rectifying these changes is installed so that when there is a change, it automatically follows to get the best value.

When the alpha channel is combined with the background image and the alpha channel has an opaque property, the remaining images except for the transparent portion of the alpha channel are completely over the background image. If the alpha channel has a semi-transparent property, the overlapping part of the alpha channel and the background image is a technology that allows you to see the background image. It is a technology that can not be implemented so far in the technology or video being implemented.

However, the present invention has developed the alpha channel (α-channel) that can be applied to the video in real time and applied it to the image synthesis means.

The video synthesizing unit 210 stores the video file to which the unique format streaming technology is applied in a temporary storage space and detects a signal indicating the end of the user's video or song. Convert and copy audio files.

The recording means 250 determines whether the inserted storage medium is a dedicated storage medium, and then, together with a control program for selectively playing the video file and the audio file and the video file and the audio file, It automatically records to various storage media (CD (Compact Disk), DVD (Digital Video Disk), Audio CD, VCD (Video Compact Disk), etc.) in real time.

The control program plays a role of determining the type of the playback device into which the storage medium is inserted and providing the location information of the video file and the audio file to be executed.

The CD (Compact Disk), DVD (Digital Video Disk), Audio CD, VCD (Video Compact Disk), etc. is inserted into a specific mark that can be identified as a dedicated storage medium used in the real-time multi-layer video composite recording system of the present invention It is characteristic.

Video files and audio files stored in various storage media such as compact disk (CD), digital video disk (DVD), audio CD, and video compact disk (VCD) are used by the program for compact disk (CD) and DVD (Digital). It is automatically selected and executed in playback devices such as Video Disk, Audio CD, and VCD (Video Compact Disk).

The control device 300 uses a variety of input device 100 and the video synthesis means and recording device CD-ROM, etc. connected to the video input device of the present invention using wireless communication such as infrared, RF, Bluetooth, ZigBee (ZigBee) It controls the recording means.

The control device 300 uses a unique frequency band to prevent system malfunctions that may occur by mixing with other home appliances in advance, thereby optimizing performance, and charging AAA rechargeable batteries by connecting to a USB port. It can be used again and conveniently controls the real-time multi-layer composite recording system anywhere within a radius of 15M.

2 is a block diagram illustrating an internal block configuration of an image synthesizing apparatus according to the present invention. Referring to Figure 2 in more detail,

The image sum growth value of the present invention further comprises an image synthesizing means 210 and a recording means 250.

The image synthesizing means 210 is an integrated system. The system control unit 215, the background image input unit 211, the camera source input unit 212, the 3D special effects unit 213, the audio source input unit 214, the image synthesis unit ( 216, a voice recognition unit 217, a file compression conversion unit 218, and the like.

The system controller 215 receives an input signal from the control device 300 to remotely control the input device, the image synthesizing means, the recording means, and the like.

The background image input unit 211 uses a natural background, a city background, a fairy tale background, a stage background, a special background, and the like to create a project file for implementing special effects, unique scene switching effects, and 3D stereoscopic images using an editor program. Create, save and provide various theme videos.

The camera source input unit 212 selects the cameras of the input device 100 in a preset order to capture a video image of the user and is switched from the first camera to the second, third, and fourth cameras. During this time, a natural switching is performed by applying a unique screen switching effect built in the image synthesizing apparatus 200.

The 3D special effects unit 213 pre-stores the data of the 3D special effects, and then creates a theme project file for each theme by combining the background image with a pre-stored editor with a dedicated editor. It adds special effects to image data and synthesizes them into 3D stereoscopic images.

The audio source input unit 214 controls the input signals of analog and digital sound input through the sound input device such as a microphone, an audio system, a CD player, an MP3, a flexible half cycle, and converts the input analog signals into digital signals. Function.

The image synthesizing unit 216 generates a video file by synthesizing a pre-stored background, three-dimensional stereoscopic effect, and a unique scene change effect with a user's image photographed with a camera, and simple synthesis in synthesizing a video. It also supports a variety of synthesis techniques, including the alpha channel.

The voice recognition unit 217 analyzes and extracts the input sound signal information and calls an alpha channel that visualizes previously stored sound information to make the background image, the user image photographed by the camera, the transparent, translucent, 3D stereoscopic image, Apply alpha image created by opacity to create and synthesize images that respond to sound and music.

The file compression converter 218 synchronizes the video file generated by the image synthesizer 216 with the input sound signal and special effects, and synthesizes and renders the completed 3D multilayer video as a unique streaming file. A video file asf is converted, compressed and stored, and at the same time, the photo and graphic files are extracted and stored in a temporary memory according to a predetermined time in the synthesized 3D multilayer video and transmitted to the recording means 250.

The file compression converter 218 may extract the final rendered 3D multilayer video at a specific specific time, store the pictures in a unique player, and transmit the same to a mobile phone and the Internet.

The recording means 250 further includes a sensor light emitting unit 252, a sensor light receiving unit 254, a sensing circuit 256, and a control unit 258.

The sensor light emitting unit 252 serves to shoot light at a portion where a specific mark is inserted into the surface of the storage medium inserted into the recording means 250.

The sensor light receiver 254 receives a value reflected by the light emitted by the sensor light emitter 252 from a specific mark inserted into the surface of the storage medium, amplifies the value, and transmits the amplified value to the sensing circuit 256. It plays a role.

The sensing circuit 256 determines whether a dedicated storage medium is used by using the value transmitted from the sensor light receiver 254.

The controller 258 controls the role of ejecting or recording the storage medium inserted into the recording means 250 according to the result value determined by the sensing circuit 256.

A line tracer is used as a method of determining whether the storage medium inserted into the recording means 250 is a dedicated storage medium. The line tracer has white reflections (0) and black absorptions (1) along a line drawn on the bottom. As a simple operation principle to which a simple digital principle is applied, the sensor light receiving unit 254 receives a value reflected by the light emitted from the sensor light emitting unit 252 from the surface of the storage medium and amplifies the value. To 256. The detection circuit 256 exits the inserted storage medium when the received value is 0, and proceeds with recording when it is 1.

3 is a block diagram of a program included in the image synthesizing means 210 according to the present invention. Referring to Figure 3 in more detail with respect to the configuration of the program,

The program mounted on the image synthesizing means 210 of the present invention includes a project D / B 290, a project analysis module 291, an image control module 292, a special effect generating module 293, a scene change processing module 294 ), A still image processing module 295, a video sound combining module 296, a recording processing module 297 and the like.

The program may be mounted on the image synthesizing unit 210 or recorded and provided on a separate computer readable storage medium.

The project D / B 290 stores a story content of a video to be produced by the user.

The video story is to set the overall contents of the video that the user wants to make, it is also possible to set the background screen, scene processing, special effects, etc. using the project program provided by the image synthesizing means.

The project analysis module 291 controls the various image control module 292, the special effect generation module 293, the scene change processing module 294, the still image processing module 295, etc. according to the project contents. Perform.

The image control module 292 performs a function of synthesizing and controlling various alpha images to these special effects, moving picture transitions, still pictures, and moving pictures according to the input accompaniment sound or the audio sound of the music file.

The special effect generation module 293 performs a function of generating and synthesizing the special effects suitable for the project contents under the control of the project analysis module 291.

The scene change processing module 294 generates and synthesizes a scene change effect suitable for the project contents under the control of the project analysis module 291.

The scene change processing module 294 sets two thresholds to determine a sudden scene change if the feature value is higher than or equal to a high threshold value, and accumulates the feature values in a section having a value equal to or lower than a low threshold value. When the cumulative feature value is larger than a given threshold, the feature is determined as a gradual scene change.

In general, a basic method for detecting a scene change is to determine that a scene change occurs when a difference in feature values between consecutive frames is equal to or greater than a preset threshold. In this way, abrupt scene changes can be detected relatively easily, but progressive scene changes are difficult to detect. In other words, if the threshold value is set too high, it is impossible to find a gradual transition. On the contrary, if the threshold value is set too low, too many transitions are found in one gradual transition or the image changes due to rapid movement of an object. Can be detected incorrectly as a scene change, causing the image quality to deteriorate.

However, since the present invention uses a method for detecting a gradual scene change by observing changes in feature values before and after a gradual scene change section, the present invention is insensitive to temporary changes in feature values and adaptively responds to different images. There is an advantage.

방법을 사용하였다. 일반적으로 임계값에 기반한 장면전환 검출방법은 사용된 임계값에 따라 결과가 크게 좌우되는데, 이러한 임계값에 대한 의존도를 낮추기 위해 적응적 임계값의 사용이 필요하다. As the feature value, an HSV color histogram was used, and each component of the histogram was 4-bit quantized to be less sensitive to small changes in the image. To find the difference between frames

Method was used. In general, the scene change detection method based on the threshold value is highly dependent on the threshold value used, and it is necessary to use an adaptive threshold value to reduce the dependency on the threshold value.

That is, the present invention sets a threshold using an average of feature values in the window by covering a local window of length N before and after the current frame to set an adaptive threshold.

을 사용하였는데, 상기

는 선택된 적응적 임계값이고,

는 미리 선택되는 임계값이고,

은 로컬 윈도우 내의 평균값으로, 현재 프레임의 특징값이 위와 같이 얻어진 적응적 임계값보다 크면서, 윈도우 내의 최대값일 경우 장면전환이 발생한 것으로 판단하게 된다.

Was used, the above

Is the selected adaptive threshold,

Is a preselected threshold,

Is an average value in the local window. If the feature value of the current frame is larger than the adaptive threshold value obtained as described above, it is determined that the scene change has occurred when the maximum value is in the window.

In other words, this method sets two thresholds, and if the feature value is higher than or equal to the high threshold value, it is determined as a sudden scene change. If the feature value is higher than or equal to the low threshold value, the cumulative feature is accumulated by accumulating the feature value in a section having a value higher than or equal to the low threshold value. If the value is greater than the given threshold, it is determined as a gradual transition.

By applying the above method, it works well for gradual scene changes, adaptively responds to various images, and has a merit of being insensitive to temporary changes such as noise.

The still image processing module 295 performs a function of processing a still image suitable for the project contents under the control of the project analysis module 291.

The image sound combining module 296 converts and compresses the video generated by the image control module 292 into a streaming file which is a final video file combined with sound.

The recording processing module 297 performs a function of allowing the user to input his / her voice or the like into a video file. When recording to a storage medium using the recording means 250, the video file and the audio are recorded. As well as a file, as described above, the user can input his or her voice or a specific company's advertising message.

4 is a flowchart illustrating a real-time multilayer image composite recording method according to an exemplary embodiment of the present invention. The recording method will be described in more detail with reference to FIG.

The control device comprises the image synthesizing apparatus 200 for a user to produce a multimedia CD using a green screen, a general screen, a CCD camera, a web camera, a sound input device (microphone, audio system, MP3, music half cycle, etc.). It is set using (300) (S502),

The user selects a project file provided in advance by designing a video story for the users in the image synthesizing means 210 (S504), or the project editor (EDIT) directly provided by the user in the image synthesizing means 210 The user may design a video story in a manner desired by the user and store it as a project file (S506).

When the user selects a project file, the image synthesizing unit 210 receives and inputs an image of the user's accompaniment, dance, and appearance, and uses a sound input device such as a microphone, an audio system, and a song half cycle. The sound is input (S508).

The input images such as accompaniment, dance, and appearance of the user are pre-set background, scene change effect, still image processing, 3D stereoscopic effect, etc. according to the project content selected by the user by soft chroma key channel which is a background separation image technique. Various effects are processed and synthesized (S510) to generate a video file (S512).

In addition, if there is an alpha channel in the contents of the project selected by the user, if there is an alpha channel, various alpha images such as transparent, opaque, and translucent are generated in response to the input user's sound through an alpha channel mixer process. It is reflected in the synthesized video file of the user in real time (S514).

Synchronizing and combining various alpha images reflected in the video file in real time generates a final rendered 3D multilayer video (S516).

The final rendered 3D multi-layer video is converted into a video file, which is a unique streaming file, compressed and stored in a temporary storage space for recording on a storage medium (S518).

When detecting a signal indicating the end of the accompaniment, song, dance, etc. of the user, the video file stored in the temporary storage space is automatically copied and converted into an audio file by the program (S522),

The video file and the audio file are automatically recorded on various storage media such as a compact disk (CD), a digital video disk (DVD), an audio CD, and a video compact disk (VCD). At this time, the multimedia CD is produced by being recorded with a control program that can be executed in a playback device such as a compact disk (CD), a digital video disk (DVD), an audio CD, a video compact disk (VCD), or the like (S524).

The storage medium thus produced is executed regardless of various playback media.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalent claims.

As described above, the present invention is a real-time multi-layer composite image recording system and method, by adding a layer of the alpha channel in response to the sound to the video file and synthesized a chroma channel, which is a background separation image, and finally a three-dimensional multilayer image having a plurality of layers To synthesize in real time,

Another effect is that it can be executed irrespective of the playback apparatus because it records together a control program which allows the playback apparatus to selectively read the video file and the audio file, which are three-dimensional multilayer images, on the various storage media. It works,

Another effect is that by applying the soft chroma key technique and a unique scene change algorithm in real time to the input of the video and sound, there is an effect that can produce a three-dimensional multilayer image of clear and sound quality,

Another effect is that the existing video system, which is composed of a large number of hardware and complicated and occupies a lot of space, is composed of an integrated system that can be controlled by a combination of a few chips and software. It is effective to easily produce 3D multi-layer images by non-experts.

Claims (16)

In the integrated system for producing a multimedia CD by real-time synthesis of 3D video and alpha channel, Image synthesis means for synthesizing a chroma channel, which is a background separated image, into an input video and synthesizing it with a real-time alpha channel that responds to sound, and converting and compressing a 3D multilayer video into a video file and an audio file; An integrated image synthesizing apparatus including recording means for recording an audio file and a control program for selectively controlling the video file and the audio file on a storage medium in real time; And A control device for remotely controlling the image synthesizing means and the recording means; Real time multi-layer composite recording system comprising a. The method of claim 1, wherein the image synthesizing means A camera source input unit for capturing an external image captured by a camera in a predetermined order and applying a screen switching effect to perform natural switching and at the same time converting an external image that is an analog signal into a digital signal; An audio source input unit controlling an analog or digital signal input through a sound input device and converting the input analog or digital signal into a digital signal; A system control unit which receives the control signal of the control device and remotely controls the image synthesizing means and the recording means, and synthesizes the input external image and sound and records them on a storage medium; An image synthesizer for generating a moving image by synthesizing an external image captured by a camera with a previously stored background image, a 3D stereoscopic effect, and a scene change effect and a chroma channel as a background separated image; A voice recognition unit for analyzing and extracting the input sound information, calling an alpha channel in response to pre-stored sound information, and directing or synthesizing an image in response to sound by applying an alpha channel to the video in real time; And Real-time composite rendering of the video and alpha channel to generate a 3D multi-layer video, convert and compress it into a video file, which is a streaming file, store it in a temporary memory, and convert and compress the stored video file into an audio file by the system controller. A file compression converting unit which transmits to the recording means together with the control program; Real time multi-layer composite image recording system further comprises. The method of claim 1, wherein the image synthesizing means A background image input unit for storing a natural background, a city background, a fairy tale background, a stage background, and a special background, and creating and storing a project file for each theme image to implement special effects, transitions, and 3D stereoscopic images; A camera source input unit for capturing an external image captured by a camera in a predetermined order and applying a screen switching effect to perform natural switching and at the same time converting an external image that is an analog signal into a digital signal; 3D special effects unit for storing the data of the 3D special effects, combined with the pre-stored background image to produce a project file for each theme or theme to add a special effect to the external image; An audio source input unit controlling an analog or digital signal input through a sound input device and converting the input analog or digital signal into a digital signal; A system control unit which receives the control signal of the control device and remotely controls the image synthesizing means and the recording means, and synthesizes the input external image and sound and records them on a storage medium; An image synthesizer for generating a moving image by synthesizing an external image captured by a camera with a previously stored background image, a 3D stereoscopic effect, and a scene change effect and a chroma channel as a background separated image; A voice recognition unit for analyzing and extracting the input sound information, calling an alpha channel in response to pre-stored sound information, and directing or synthesizing an image in response to sound by applying an alpha channel to the video in real time; And Real-time composite rendering of the video and alpha channel to generate a 3D multi-layer video, convert and compress it into a video file, which is a streaming file, store it in a temporary memory, and convert and compress the stored video file into an audio file by the system controller. A file compression converting unit which transmits to the recording means together with the control program; Real time multi-layer composite image recording system further comprises. The method of claim 2 or 3, wherein the image synthesis unit A real-time multi-layer composite image recording system comprising a soft chroma key composed of a large wave tilted to a key signal and a circuit for solving color fog. The method of claim 2 or 3, wherein the file compression conversion unit Real-time multi-layer composite image recording system, characterized in that for extracting and storing a picture of the final composite rendered 3D multi-layer video at a specific time. The method of claim 1, wherein the image synthesizing means A project D / B for storing project contents of a 3D multilayer video to be produced by the user; A project analysis module for controlling an image control module, a special effect generating module, a scene change processing module, and a still image processing module according to the project contents; An image control module for synthesizing and controlling an alpha channel to a special effect, a video transition, a still image, and an image video according to an input sound; A special effect generation module for generating and synthesizing a special effect corresponding to the project contents according to the control of the project analysis module; A scene change processing module for generating and synthesizing a scene change effect suitable for project contents under the control of the project analysis module; A still picture processing module for processing a still picture according to the project contents according to the control of the project analysis module; A video sound combining module for converting and compressing the 3D multi-layer video generated by the image control module into a video file which is a streaming file by combining the sound with the sound; And A recording processing module for inserting a voice into the video file which is the streaming file; Real-time multi-layer composite image recording system, characterized in that further comprises a project program comprising a. The method of claim 6, wherein the scene change processing module If two feature values are set and the feature value is higher than or equal to the high threshold value, it is determined as a sudden scene change. Real-time multi-layer composite image recording system, characterized in that it is determined to be a progressive scene change when larger. A recording apparatus as claimed in claim 1, wherein said recording means A sensor light emitting part for shooting light onto a surface of a storage medium inserted into the recording means; A sensor light receiver configured to receive a value reflected by the light emitted by the sensor light emitter from the surface of the storage medium, amplify the value, and transmit the amplified value to a sensing circuit; A sensing circuit that determines a storage medium using the value transmitted from the sensor light receiver; And A control unit for discharging or recording the storage medium inserted into the recording unit according to the result value determined by the sensing circuit; Real time multi-layer composite image recording system further comprises. The method of claim 8, wherein the sensor Real-time multi-layer composite recording system, characterized in that either optical sensor or magnetic sensor. The method of claim 8, wherein the sensing circuit A real-time multilayer image composite recording system, characterized in that it is determined using either a line tracer method or a magnetic mark method. 9. A recording apparatus according to claim 1 or 8, wherein said recording means And a video file, which is the streaming file, which is temporarily stored when a control signal of the control device or a song ends, is recorded on a storage medium. 9. A recording apparatus according to claim 1 or 8, wherein said recording means A real-time multi-layer composite image recording system characterized by recording together in one sector together with a video file, an audio file, and a control program which can be selectively executed in a playback apparatus. The method of claim 12, wherein the control program And determining the type of the playback device to provide the location information of the video file or the audio file stored in the storage medium. In the method for producing a multimedia CD by real-time synthesis of 3D video and alpha channel, (a) selecting a pre-stored project file in which a video story is designed; (b) generating a moving image file by inputting the user's image and sound and synthesizing a preset background image, a scene changeover, a still image, and a 3D object according to the project contents; (c) generating a three-dimensional multilayer video by real-time synthesizing a real-time alpha channel responsive to sound in the video file; (d) converting and compressing the 3D multi-layer video into a video file in real time and storing it in a temporary storage space and then copying and converting the video file into an audio file when detecting a control signal indicating an end; (e) recording the video file and the audio file together with a control program in a real time storage medium; Real time multilayer image composite recording method comprising a. 15. The method of claim 14, wherein in step (e) And the program is configured to selectively execute the video file and the audio file stored in various storage media in various playback devices. In the integrated system and method for producing a multimedia CD by real-time synthesis of 3D video and alpha channel, (A) a function for allowing a user to select a pre-stored project file for which a video story is designed or to design and save a video story using a project program; (B) a function for separating and processing the video and sound data of the user input by using a plurality of cameras and sound input devices; (C) generating a video file by synthesizing a preset background image, a scene change effect, a still image process, and a 3D stereoscopic effect according to the input image of the user and the project contents; (D) generating a final rendered 3D multilayer video file by combining the video file and various alpha images in response to the input sound; (E) converting the final rendered 3D multilayer video file into a video file which is a streaming file, compressing the compressed file, and storing the compressed 3D multilayer video file in a temporary storage space; (F) upon detection of an end signal, automatically copying and converting the video file into an audio file, and recording the video file and the audio file on a storage medium together with a control program for selectively executing the video file and the audio file. function; A recording medium having recorded thereon a program for realizing the same, wherein the recording medium can be processed by a computer.

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