CN101500091A - Character synthesizing method with two paths of video effects - Google Patents
Character synthesizing method with two paths of video effects Download PDFInfo
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- CN101500091A CN101500091A CNA2008101678986A CN200810167898A CN101500091A CN 101500091 A CN101500091 A CN 101500091A CN A2008101678986 A CNA2008101678986 A CN A2008101678986A CN 200810167898 A CN200810167898 A CN 200810167898A CN 101500091 A CN101500091 A CN 101500091A
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Abstract
The invention discloses a character composting method of two paths of video special effects, which comprises the steps: a camera shoots one path of video signals of a character under a blue background or other pure color backgrounds and the video signals together with video background signals stored in another path of camera are sent to an image matting machine for image matting and composting; and the video signals after image matting and composting together with video signals under the same background are sent to a video special effect switcher for special effect composting. The method can realize showing the special effects of fade-in fade-out of the character, transition in and out and picture-in-picture, thus achieving better video effect.
Description
Technical field
The present invention relates to a kind of character synthesizing method of two paths of video effects.
Background technology
The domestic and international at present common processing method to personage's video effect is: with two-way different video input video stunt cut bank, the stunt cut bank is to the stunt of regulation then, as: 1. be fade-in fade-out, two-path video picture integral body is fade-in fade-out, promptly one tunnel vision signal integral body increases in proportion, and another road vision signal integral body reduces in proportion simultaneously; 2. transition, the operation of cutting to of two-way different video picture integral body, promptly the different vision signal of two-way is carried out transition change by the zone, and one tunnel video signal area increases in proportion, and another road video signal area reduces in proportion.But the synthetic defective that causes of the integral body of above-mentioned two video lens stack is to have significantly: when be fade-in fade-out, during transition etc., its background also changes, and causes loftyly only having variations such as being fade-in fade-out of personage, transition.
Summary of the invention
In view of the above-mentioned artistic effect defective that the common processing method of personage's video effect is brought, provide a kind of scheme of solution order of the present invention, the present invention adopts the personage under blue look (or other pure color) background, scratch the picture operation, tell personage's key signals, by key signals to the personage at the enterprising line operate of video background signal, as shown in Figure 1, concrete synthetic method is as follows:
(1) road vision signal of video camera production personage under blue look background (or other solid background) together sent into stingy camera with another road video background signal simultaneously and scratched as synthetic;
(2) scratching the vision signal of picture after synthetic sends into the video effect cut bank with same background video signal again to carry out stunt synthetic.
The beneficial effect that the present invention brings is that the figure and ground can separately give prominence to, and is implemented in the variation of lofty personage under the indeclinable always situation of background.
Description of drawings
Fig. 1 is a main-process stream block diagram of the present invention.
Fig. 2 is the personage of the present invention flow chart of being fade-in fade-out.
Fig. 3 is the personage of the present invention flow chart of cutting to.
Fig. 4 is personage's picture-in-picture flow chart of the present invention.
Embodiment
Embodiment 1. personages are fade-in fade-out
As shown in Figure 2, at first video camera is produced the road vision signal of personage under blue look background (or other solid background), and another road video background signal of while is together sent into stingy camera and scratched as synthetic.To scratch the vision signal more same background video signal of picture after synthetic then sends into the video effect cut bank together to carry out stunt synthetic, the different vision signal of two-way one increases one and subtracts in proportion, 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.
Embodiment 2. personages' transition is come in and gone out
As shown in Figure 3, at first the road vision signal of video camera production personage under blue look background (or other solid background) together sent into another road video background signal stingy camera simultaneously and scratched as synthetic.To scratch the vision signal of picture after synthetic then sends into the video effect cut bank with same background video signal again to carry out stunt synthetic, the different vision signal of two-way is exported by the zone, but because the background of two-path video is identical, the background that shows is less than changing.When the personage cuts to fashionable: the personage occurs with different graphics mode (as modes such as circle, polygons) under video background, and when stingy camera vision signal accounted for 100%, the personage showed fully, and can keep background video constant; When the personage cut to out: the personage disappeared with different graphics modes under video background, and when the video background signal accounted for 100% output, personage's complete obiteration but can keep background video constant.
Embodiment 3. personages are fade-in fade-out in the picture-in-picture mode
As shown in Figure 4, at first the road vision signal of video camera production personage under blue look background (or other solid background) together sent into another road video background signal stingy camera simultaneously and scratched as synthetic.To scratch the vision signal of picture after synthetic then sends into the video effect cut bank with same background video signal again to carry out stunt synthetic, the different vision signal of two-way is exported in proportion at window area, because the background of two-path video is identical, the background that shows is less than changing.When the personage was faded in the picture-in-picture form: personage and video background slowly manifested in background video with a window, and when the window vision signal accounted for 100%, picture-in-picture occurred the clearest, and can keep background video constant; When the personage was faded out with the picture-in-picture form: personage and video background slowly disappeared in background video with a window, and when the window vision signal accounted for 0, picture-in-picture disappeared, and video is output as full background, and background video remains unchanged always.
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 (4)
1. the character synthesizing method of a two paths of video effects is characterized in that:
(1) road vision signal of video camera production personage under blue look background or other solid background together sent into stingy camera with another road video background signal simultaneously and scratched as synthetic;
(2) scratching the vision signal of picture after synthetic sends into the video effect cut bank with same background video signal again to carry out stunt synthetic.
2. the character synthesizing method of a kind of two paths of video effects as claimed in claim 1 is characterized in that: come in and go out stunt when synthetic in the transition of carrying out the personage, the different vision signal of two-way is by zone output, and video background remains unchanged,
When the personage cuts to fashionable: the personage occurs with different graphics modes such as modes such as circle, polygon under video background, and when stingy camera vision signal accounted for 100%, the personage showed fully;
When the personage cut to out: the personage disappeared with different graphics modes under video background, when the video background signal accounts for 100% output, and personage's complete obiteration.
3. the character synthesizing method of a kind of two paths of video effects as claimed in claim 1 is characterized in that: when the stunt of being fade-in fade-out of carrying out the personage was synthetic, the different vision signal of two-way one increased one and subtracts in proportion, and video background remains unchanged,
When carrying out 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.
4. as the character synthesizing method of claim 1 or 3 described a kind of two paths of video effects, it is characterized in that: be fade-in fade-out stunt when synthetic with the picture-in-picture form carrying out the personage, the different vision signal of two-way is exported in proportion at window area, and video background remains unchanged
When the personage was faded in the picture-in-picture form: personage and video background slowly manifested in background video with a window, and when the window vision signal accounted for 100%, picture-in-picture occurred the clearest;
When the personage was faded out with the picture-in-picture form: personage and video background slowly disappeared in background video with a window, and when the window vision signal accounted for 0, picture-in-picture disappeared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101678986A CN101500091A (en) | 2008-10-16 | 2008-10-16 | Character synthesizing method with two paths of video effects |
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| CNA2008101678986A CN101500091A (en) | 2008-10-16 | 2008-10-16 | Character synthesizing method with two paths of video effects |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102325237A (en) * | 2011-10-26 | 2012-01-18 | 天津三星光电子有限公司 | Digital camera with picture-in-picture video recording and playing function |
| CN102868872A (en) * | 2012-09-29 | 2013-01-09 | 广东威创视讯科技股份有限公司 | Video extracting method and device |
| CN103248830A (en) * | 2013-04-10 | 2013-08-14 | 东南大学 | Real-time video combination method for augmented reality scene of mobile intelligent terminal |
| CN103475826A (en) * | 2013-09-27 | 2013-12-25 | 深圳市中视典数字科技有限公司 | Video matting and synthesis method |
| CN109936710A (en) * | 2019-03-13 | 2019-06-25 | 深圳市瑞云科技有限公司 | A kind of production method of the short-sighted frequency of embedded background based on the rendering of CG cloud |
-
2008
- 2008-10-16 CN CNA2008101678986A patent/CN101500091A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102325237A (en) * | 2011-10-26 | 2012-01-18 | 天津三星光电子有限公司 | Digital camera with picture-in-picture video recording and playing function |
| CN102868872A (en) * | 2012-09-29 | 2013-01-09 | 广东威创视讯科技股份有限公司 | Video extracting method and device |
| CN102868872B (en) * | 2012-09-29 | 2017-03-29 | 广东威创视讯科技股份有限公司 | Video extraction method and apparatus |
| CN103248830A (en) * | 2013-04-10 | 2013-08-14 | 东南大学 | Real-time video combination method for augmented reality scene of mobile intelligent terminal |
| CN103475826A (en) * | 2013-09-27 | 2013-12-25 | 深圳市中视典数字科技有限公司 | Video matting and synthesis method |
| CN109936710A (en) * | 2019-03-13 | 2019-06-25 | 深圳市瑞云科技有限公司 | A kind of production method of the short-sighted frequency of embedded background based on the rendering of CG cloud |
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Open date: 20090805 |