CN101500092A

CN101500092A - Broadcast stage MTV synthesizing method

Info

Publication number: CN101500092A
Application number: CNA2008101678990A
Authority: CN
Inventors: 黄福宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-16
Filing date: 2008-10-16
Publication date: 2009-08-05

Abstract

The invention discloses a broadcast MTV compositing method, which employs a current broadcast video image matting machine, a video special effect switcher and a computer title insert; a camera is adopted to shoot the video signals of a singer under a blue background, and the video signals together with the background video signals output by a computer are sent to the image matting machine for image matting and composting; the video signals after image matting together with the background video signals output by the computer are sent to the video special effect switcher for carrying out various video special effect switching and composting; the composited video signals are superposed with title by the computer title insert, then one path is sent to the computer for collecting and another path is sent to external display equipment; and the music produced by a sound card of the computer is subjected to sound mixture through a power amplifier and a microphone, and then one part is sent to a sound box for sounding and another part is sent to the computer for collecting. The invention can generate an audio and video file which can achieve broadcast standards, be played in television stations or made into VCD and DVD and uploaded to Internet network, and the like.

Description

Broadcast stage MTV synthesizing method

Technical field

The present invention relates to a kind of MTV synthetic method, relate in particular to a kind of MTV synthetic method of broadcast level.

Background technology

MTV in the market is synthetic have only recreational, its audio frequency, the synthetic quality of video and collection standard are low, can not generate sound, a video file that reaches the broadcast level standard far away, can not broadcast in TV station, the VCD that makes, DVD, upload to poor qualities such as Internet network, so range of application only is confined in the amusement.Iff some parts of in the market MTV synthesizer are changed into broadcast level as scratching camera, video video effect cut bank and title insert etc., there is not the support of software still not reach the quality standard of broadcast stage MTV.

Summary of the invention

In view of above-mentioned existing MTV synthetic technology does not reach broadcast level, there is defective of low quality, the present invention aims to provide a kind of scheme of solution, with having video camera, the video synthesis device (scratching camera, video effect cut bank) that reaches broadcast level, the computer captions card that reaches broadcast level now, to guarantee the quality of video image, carry out the collection of the stack in real time of music, captions and sound, video with computer, and the collection standard reaches more than 720 * 576 resolution of broadcast level.

Concrete grammar is as follows, as shown in Figure 1,

(1) uses the above vision signal of video camera production singer under blue background (or other solid background) of 480 tv lines, be input to simultaneously with the background video signal of computer output and scratch camera and scratch picture, stingy camera is added to the singer on the background video signal;

(2) vision signal behind the stingy picture is input to the video effect cut bank together with the background video signal that computer is exported again, carries out various video effects and switches synthetic;

(3) vision signal after synthetic is by the title insert overlapping text of computer, and the video foreground special efficacy, the one tunnel delivers to computer acquisition then, and one the tunnel delivers to external display device, and the resolution of its video reaches more than 720 * 576;

(4) audio-frequency unit: after computer sent music and mixes by power amplifier and microphone voice from sound card, a part was delivered to the audio amplifier sounding, and a part is delivered to computer collection, gathers bit rate and reaches more than the 44KBPS.

This programme uses sound, the video format that does not have compression.

Beneficial effect, the present invention can generate the sound, the video file that reach the broadcast level standard, can or make VCD, DVD in TV station's broadcast, upload to Internet network etc.When the input video cut bank, use same background video to realize if adopt: under the situation that background remains unchanged, being fade-in fade-out of personage, personage's transition discrepancy etc.By the input of title insert, can realize that singer's name shows and the demonstration of the captions that flow.

Description of drawings

Fig. 1 is a MTV image synthesizing method FB(flow block) of the present invention.

Fig. 2 is the synthetic method flow chart of the personage's of the present invention stunt of being fade-in fade-out.

Embodiment

Embodiment 1. personages are fade-in fade-out

As shown in Figure 2, in MTV manufacturing process, at first video camera is produced the road vision signal of personage under blue background (or other solid background), to be stored in another road video background signal in the machine simultaneously together sends into by the decompress(ion) card and scratches camera and scratch picture and synthesize, send into the video effect cut bank with the former same background video signal that is stored in the machine again to carry out stunt synthetic scratching the vision signal of picture after synthetic, signal after synthetic is delivered to computer captions card, the music that superposes captions, singer's name, roll titles and video foreground special efficacy, one the tunnel deliver to computer acquisition then, the one tunnel delivers to television set shows; Simultaneous computer sends the MTV accompaniment music by sound card, and after delivering to power amplifier and microphone and mixing, the one tunnel delivers to computer acquisition, and one the tunnel delivers to the audio amplifier sounding.

Use background video that the present invention is so complicated and stingy picture key signals are in order to obtain special personage's synthetic effect.The effect of being fade-in fade-out as the personage, be by scratching vision signal and the former same background video signal behind the picture, the different vision signal of two-way one increases one and subtracts in proportion, and one increases one and subtracts although it is so, but because the background of two-path video is identical, the background that shows is less than changing.When the fading in of personage: the personage slowly manifests under video background, and when stingy camera vision signal accounted for 100%, the personage was the most clear, and can keep background video constant; When the fading out of personage: the personage slowly disappears under video background, and when the video background signal accounted for 100% output, personage's complete obiteration but can keep background video constant.

The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvement and polishing, these improvement and polishing also should be considered as protection scope of the present invention.

Claims

1. the MTV synthetic method of a broadcast level is used the existing video camera that reaches broadcast level, is scratched camera, video effect cut bank and computer captions card, carries out the collection of the stack in real time of music, captions and sound, video with computer, it is characterized in that:

(1) uses the above vision signal of video camera production singer under blue background or other solid background of 480 tv lines, be input to simultaneously with the background video signal of computer output and scratch camera and scratch picture, stingy camera is added to the singer on the background video signal;

2. the MTV synthetic method of a kind of broadcast level as claimed in claim 1 is characterized in that: scratch vision signal behind the picture and be input to the video effect cut bank together with the same background video signal of computer output again and carry out video effect and switch synthetic.

3. the MTV synthetic method of a kind of broadcast level as claimed in claim 2 is characterized in that: personage's the stunt of being fade-in fade-out be the different video signal of the same background of two-way in proportion one increase one subtract synthetic,

When the fading in of personage: the personage slowly manifests under video background, and when stingy camera vision signal accounted for 100%, the personage was the most clear;

When the fading out of personage: the personage slowly disappears under video background, when the video background signal accounts for 100% output, and personage's complete obiteration.