KR20010076966A - An automatic multi-partition editing system by image composition - Google Patents

Abstract

PURPOSE: An automatic multi-division editing system through a video composition is provided to mix video easily, and to offer various editing functions such as multi-division, zoom-in, and zoom-out by using a program for performing a loop of necessary functions. CONSTITUTION: An automatic multi-division editing system includes a video input part(2a,2b), a memory part(3), a video signal processing part(4), a video output part(5), a control part(6), and a central processing part(7). The video input part(2a,2b) converts an analog video signal into a digital video signal by receiving a photographed image and a background image, and transfers the digital video signal to the memory part(3) and an address buffer. The memory part(3) includes a fifo memory, a buffer IC, and a video RAM, and controls an input/output order of data, and stores the data. The video signal processing part(4) includes a video processing PLD(Program Logic Device) and a video processing part, and the video processing PLD(Program Logic Device) performs an edition such as a zoom-out, a zoom-in, a division, an enlargement, and a reduction of an image, and the video processing part performs an overlay, a chroma-key, and a control of a screen ration in the time of the overlay and the chroma-key. A completed image is converted into an analog signal through the video output part(5) and a D/A converter. The control part(6) and the central processing part(7) controls whole process of the image edition.

Description

An automatic multi-partition editing system by image composition}

The present invention relates to an automatic multi-partition editing system through image synthesis. More specifically, it accepts two video signals of the background image, the existing image, and the image that the user wants to capture, combines them into a single screen, and monitors them simultaneously so that multiple edits can be made automatically. The system relates to a system that allows the general public to composite and multi-edit the video he or she created in real time without any additional work.

In general, two methods of image synthesis are representative of image media such as broadcasting and film. One is called Chroma-key, which is often used in broadcasts or weather forecasts where ghosts appear. After taking pre-processed images, another image is taken based on blue or green screens. It feels like one screen. This is to separate the blue or green through the synthesizing device and replace the other background image photographed in this part so that the viewer recognizes it as one screen. The other is to take two video signals at the same time as an overlay method and adjust the ratio of the two video signals so that two separate screens overlap. This is common in the recollection of dramas and movies. Although these shooting and editing equipments have been put to practical use, the use of these equipments is so expensive that they are used only by broadcasters and professional editors, and they must be operated by professional producers as needed. There was only. Recently, instead of using such expensive equipment, a method of using a computer to divide and synthesize a video taken by itself into a background or an existing video and easily manipulate it into a single screen has been introduced. There was a problem in that it was not possible to divide, synthesize and edit alone without the help of a third party.

The present invention solves this problem and makes it easier and easier for the general public or small business owners in the image related industry with various needs to add and divide images and add in and zoom out and zoom out functions. More various editing functions can be done automatically and the purpose is to be able to do it alone without the help of others in real time.

In order to achieve this purpose, the system creates a program that loops by selecting a function that is considered to be necessary or frequently used by an operator in advance, and then enters a program to control it from the central processing unit (CPU). It is characteristic to make it.

1 is a flowchart illustrating the present invention.

2 is a circuit configuration diagram of the present invention.

3 is a flow chart for explaining the overall manufacturing system.

<Description of the symbols for the main parts of the drawings>

1a, 1b: video signal 2a, 2b: image input section

3: memory unit 4: image signal processing unit

5: image output unit 6: control unit

7: central processing unit 8a, 8b: A / D converter

9 Address buffer 10 Fifo memory

11: Buffer IC (IC) 12: Video RAM (V RAM)

13 image processing PDL 14 image processing unit

15: D / A converter 16: external sound equipment

17 monitor 18 VCR

Referring to the present invention in detail by a flow chart of the production system as follows.

The present invention is largely divided into an image input section 2a (2b), a memory section (3), an image signal processing section (4), an image output section (5), a control section (6), and a central processing section (7). The image input unit (2a) (2b) inputs the video signal (1a) captured by the video camera and the video signal (background image) (1b) already made to the digital signal to the analog signal in the A / D converter (8) The video signal is converted into a digital signal and sent to the memory unit 3 and the address buffer 9. The memory unit 3 is composed of a fifo memory 10, a buffer IC (IC) 11, and a video RAM (V RAM) 12. The data input / output order and storage are performed. The image signal processing unit 4 is composed of an image processing program logic device (PLD) 13 and an image processing unit 14, and in the image processing PLD 13, an image enlargement, reduction, division, Editing such as zoom-in, zoom-out, etc. is performed, and composition is performed in the image processor 14, which means direct overlay, chroma key synthesis, and control of the ratio. The synthesized and edited image is converted into a digital signal again through an D / A converter 15 in the image output unit 5 to an analog signal. All of these processes are controlled in hardware or software by the control unit (central processing control) 6 and the central processing unit (CPU central processing) 7.

The characteristic of this system is that the designer thinks that it is necessary in advance, or selects and writes a frequently used function, and loops the program and inputs it to the central processing unit 7 so that the central processing unit 7 can change the image. When the size is calculated, the image processing PDL (13) determines the size, division method, and zoom method, and transmits it to the video RAM (V Ram) 12 of the memory unit (3). The image is controlled in advance by saving or exporting as required by Ram (12), and it is operated by a third operator (manufacturer or photographer) in search of the functions one by one as needed when editing like an existing synthesizer. You can operate the system independently without having to give it.

<Example>

Suppose you are a teacher who wants to make a lecture tape on cultural heritage.

The teacher sets the cultural relics by using his own film or the existing educational images as the background image. At this time, the equipment can be used for anything and select the image with LD, VCD, VCR, etc., and then use the prepared external sound device 16 (recorder, CDP, microphone). Set the music. Since this educational video production is a lecture, you will need to use a microphone to record the teacher's lecture with background music. Camera, monitor 17 operation and VCR 18 recording are started. During camera shooting, the teacher lectures to the students while watching the cultural relics of the background image on the monitor. Automated editing and multi-segmentation of lecture videos and cultural backgrounds. Through this process, the images can be synthesized as one, and it can be considered that the teacher lectures right next to the artifact. This video is output to the monitor simultaneously with the camera operation and recorded on the VCR.

Small and self-employed businesses in the video industry with various needs can easily and easily synthesize images and add various division and zoom-in / zoom-out functions to automatically perform various editing functions. One person can appear, shoot, and edit in real time. Production can be completed while watching the screen on the monitor, so it is possible to synthesize a video by yourself without the help of others, and these works can be realized with low-cost equipment.

Claims (2)

In the image synthesis system, the image input unit 2a (2b) and the memory unit 3, the image signal processing unit 4, the image output unit 5, the control unit 6, the central processing unit 7 is divided into (2a) and (2b) input an image signal (1a) photographed by a video camera and an image signal (background image) 1b already made, and convert the analog image signal into a digital signal in the A / D converter and convert the digital signal. The video signal is converted into the memory unit 3 and the address buffer 9, and the memory unit 3 includes a fifo memory 8, a buffer IC 9, and a video RAM (V RAM). 10) The data input / output sequence and storage are performed, and the image signal processing unit 4 is composed of an image processing PDL (PLD: Program logic device) 11 and an image processing unit 12, and the image processing PDL In this case, the image is enlarged, reduced, divided, zoomed in, and zoomed out. The image processing unit 12 directly overwrites the image. In this way, a chroma key synthesis and a control to control the ratio are performed. The synthesized edited image is converted from the digital signal back to the analog signal through the D / A converter 13 in the image output unit 5 . All these processing processes are controlled by the control unit (central processing control) 6 and the central processing unit (CPU central processing) 7 in hardware or software. 2. The system according to claim 1, wherein the system creates a program which loops by selecting a function which the designer thinks or needs to use in advance, and inputs it to the central processing unit 7 to input the image (at the central processing unit 7).像) After calculating the size, the image processing PDL 11 decides the size, division method, and zoom method and sends it to the video RAM 10 of the memory unit 3. By saving or exporting as necessary in RAM (V Ram) 10, the image is controlled in advance so that the function can be found as needed when editing and can be operated independently without the help of a third party (manufacturer or photographer). Automatic multi-partition editing system, characterized in that the image synthesis.