CN102523420A - Online remote teaching method capable of virtualizing real environment - Google Patents
Online remote teaching method capable of virtualizing real environment Download PDFInfo
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- CN102523420A CN102523420A CN2011103887738A CN201110388773A CN102523420A CN 102523420 A CN102523420 A CN 102523420A CN 2011103887738 A CN2011103887738 A CN 2011103887738A CN 201110388773 A CN201110388773 A CN 201110388773A CN 102523420 A CN102523420 A CN 102523420A
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Abstract
The invention discloses an online remote teaching method capable of virtualizing a real environment. The online remote teaching method comprises the following implementation steps of: 1) recording videos of a teaching field in real time and using the videos as primary images; 2) recording videos of learning fields in real time, using the videos as secondary images and inserting the secondary images in the primary images; 3) encoding and compressing the primary images into which the secondary images are inserted; and 4) distributing encoded and compressed video files to the computers of students through a network and outputting the video files to the students through the computers. The online remote teaching method capable of virtualizing the real environment has the advantages that the classroom environment can be simulated, the teaching effect is good and the interaction is simple and convenient.
Description
Technical field
The present invention relates to the multimedia teaching field, be specifically related to a kind of online long-range method of giving lessons of reality environment.
Background technology
In recent years; Along with Internet development, obtained increasingly extensive application based on amusement, friend-making, the teaching of Online Video, and in Internet video is used; The throughput of different networks constantly, propagation delay time etc. are constantly to change; This grouping that just makes transmission video signal is difficult to arrive receiving terminal simultaneously with the grouping of its corresponding sound accompaniment of transmission, thereby makes the broadcast of vision signal can not be more serious with the synchronous problem of its sound accompaniment, produces the effect of " labial is asynchronous "; Greatly limited, based on the promotion and application of the amusement of Online Video, friend-making, teaching.
But progressively development along with the Internet; The speed of broadband access is increasingly high; The general public in city has generally reached the access in 2 ~ 4M broadband at present; And the high-grade sub-district of part begun light and registered one's residence, bandwidth even can reach 100M even more, and Here it is, and long-range the giving lessons of real-time online that video quality becomes better and better created condition.Present compress technique through good video, online long-range the giving lessons that can realize the 768K low bandwidth.But; The online long-range problem of having given lessons lacks alternately exactly at present; Therefore it realizes it only being the back to be taken at the scene of giving lessons broadcast to the student, and the person of giving lessons can't understand the state of student's study, also can't understand state separately between the student; The person of giving lessons can't realize the mutual of long-distance education classroom, therefore causes quality of instruction to compare with the quality of instruction of traditional teaching way.
Summary of the invention
The technical problem that the present invention will solve provides a kind ofly can simulate good, the mutual online long-range method of giving lessons of reality environment simply and easily of classroom environment, teaching efficiency.
In order to solve the problems of the technologies described above, the technical scheme that the present invention adopts is:
A kind of online long-range method of giving lessons of reality environment, implementation step is following:
1) takes the on-the-spot video of giving lessons in real time as key frame;
2) take the on-the-spot video of student in real time as sprite, said sprite is inserted in the said key frame;
The key frame that 3) will insert sprite passes through encoding compression;
4) video file with encoding compression passes through the computer that net distribution is given the student, and exports to the student through computer.
Further improvement as technique scheme:
Said step 2) detailed step that in sprite is inserted in the key frame comprises: at first in key frame, set a plurality of sprites viewing area; Then with the image deduction of each frame neutron picture-display-region in the key frame; Select a plurality of sprites then, be collapsed into the size of said sprite viewing area and be packed into the key frame that said sprite viewing area obtains inserting sprite respectively.
The detailed step of a plurality of sprites of said selection is: preestablish timer, set the set of sprite, each time timer regularly trigger then from the set of sprite, extract sprite numbering as selecteed sprite.
The key frame that will insert sprite in the said step 3) specifically is meant the key frame boil down to that inserts sprite form H.264 through encoding compression.
The present invention has following advantage:
The present invention gives lessons on-the-spot video as key frame through real-time shooting; Take the on-the-spot video of student in real time as sprite; Sprite is inserted in the key frame, through encoding compression, the video file of encoding compression is given student's computer through net distribution the key frame that inserts sprite; And export to the student through computer; Therefore give lessons on-the-spot person of giving lessons or operating personnel can understand each student's state in real time through sprite, and can sprite be inserted in the key frame and realize sharing between student's state, thereby can realize that the classroom puts question to interactions such as answer, student's demonstration; The virtual environment presence of giving lessons is good, has to simulate good, the advantage simply and easily alternately of classroom environment, teaching efficiency.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the main schematic flow sheet of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
As shown in Figure 1, the implementation step of the online long-range method of giving lessons of present embodiment reality environment is following:
1) takes the on-the-spot video of giving lessons in real time as key frame;
2) take the on-the-spot video of student in real time as sprite, sprite is inserted in the key frame;
The key frame that 3) will insert sprite passes through encoding compression;
4) video file with encoding compression passes through the computer that net distribution is given the student, and exports to the student through computer.
Present embodiment step 2) detailed step that in sprite is inserted in the key frame comprises: at first in key frame, set a plurality of sprites viewing area; Then with the image deduction of each frame neutron picture-display-region in the key frame; Select a plurality of sprites then, be collapsed into the size of sprite viewing area and be packed into the key frame that the sprite viewing area obtains inserting sprite respectively.
The detailed step of a plurality of sprites of selection of present embodiment is: preestablish timer, set the set of sprite, each time timer regularly trigger then from the set of sprite, extract sprite numbering as selecteed sprite.
The key frame that will insert sprite in the present embodiment step 3) specifically is meant the key frame boil down to that inserts sprite form H.264 through encoding compression.H.264 be the new digital video coding standard of joint video team (JVT:joint video team) exploitation of MPEG (moving picture expert group) of VCEG (video coding expert group) and the ISO/IEC of ITU-T; It is ITU-T H.264, be again the 10th part of the MPEG-4 of ISO/IEC.Begin the draft collection in January, 1998, accomplish first draft in September, 1999, formulated its test pattern TML-8 May calendar year 2001, FCD plate has H.264 been passed through in JVT the 5th meeting in June, 2002.Formally issue in March, 2003.Developed more ADVANCED APPLICATIONS standard MVC and SVC version H.264 again in 2005.H.264 maximum advantage is to have very high data compression ratio, and under the condition of equal picture quality, compression ratio H.264 is more than 2 times of MPEG-2, is 1.5～2 times of MPEG-4.Give an example,, become 3.5GB after the compression of employing MPEG-2 compression standard if the size of original document is 88GB; Compression ratio is 25: 1; And become 879MB after adopting H.264 the compression standard compression, from 88GB to 879MB, compression ratio H.264 reaches surprising 102: 1! H.264 why is there there so high compression ratio? Low code check (Low Bit Rate) has play a part important and compression compared with techniques such as MPEG-2 and MPEG-4 ASP, and H.264 compress technique will be saved user's download time and data traffic charge greatly.Especially what deserves to be mentioned is, H.264 when having high compression ratio, also have the smooth image of high-quality, Just because of this, through the video data of compression H.264, in network transmission process needed bandwidth still less, also more economically.
The above only is a preferred implementation of the present invention, and protection scope of the present invention also not only is confined to the foregoing description, and all technical schemes that belongs under the thinking of the present invention all belong to protection scope of the present invention.Should be pointed out that for those skilled in the art in the some improvement and the retouching that do not break away under the principle of the invention prerequisite, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (4)
1. the online long-range method of giving lessons of a reality environment is characterized in that implementation step is following:
1) takes the on-the-spot video of giving lessons in real time as key frame;
2) take the on-the-spot video of student in real time as sprite, said sprite is inserted in the said key frame;
The key frame that 3) will insert sprite passes through encoding compression;
4) video file with encoding compression passes through the computer that net distribution is given the student, and exports to the student through computer.
2. the online long-range method of giving lessons of reality environment according to claim 1; It is characterized in that; Said step 2) detailed step that in sprite is inserted in the key frame comprises: at first in key frame, set a plurality of sprites viewing area; With the image deduction of each frame neutron picture-display-region in the key frame, select a plurality of sprites then then, be collapsed into the size of said sprite viewing area and be packed into the key frame that said sprite viewing area obtains inserting sprite respectively.
3. the online long-range method of giving lessons of reality environment according to claim 2; It is characterized in that; The detailed step of a plurality of sprites of said selection is: preestablish timer; Set the set of sprite, each time timer regularly trigger then from the set of sprite, extract sprite numbering as selecteed sprite.
4. according to the online long-range method of giving lessons of claim 1 or 2 or 3 described reality environments, it is characterized in that: the key frame that will insert sprite in the said step 3) specifically is meant the key frame boil down to that inserts sprite form H.264 through encoding compression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011103887738A CN102523420A (en) | 2011-11-30 | 2011-11-30 | Online remote teaching method capable of virtualizing real environment |
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| CN2011103887738A CN102523420A (en) | 2011-11-30 | 2011-11-30 | Online remote teaching method capable of virtualizing real environment |
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| CN102523420A true CN102523420A (en) | 2012-06-27 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103841353A (en) * | 2014-02-24 | 2014-06-04 | 广州华多网络科技有限公司 | Video interaction method, terminal, server and system |
| CN105828214A (en) * | 2016-03-31 | 2016-08-03 | 徐文波 | Method and apparatus for realizing interaction in video live broadcast |
| CN106293087A (en) * | 2016-08-09 | 2017-01-04 | 联想(北京)有限公司 | A kind of information interacting method and electronic equipment |
| CN106846448A (en) * | 2017-02-09 | 2017-06-13 | 武汉吉客威睿数字科技有限公司 | A kind of micro- class method for recording and system based on virtual reality |
| CN106878764A (en) * | 2015-12-01 | 2017-06-20 | 幸福在线（北京）网络技术有限公司 | A kind of live broadcasting method of virtual reality, system and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054694A (en) * | 1990-03-08 | 1991-09-18 | 秦方 | Multi-frame tv |
| CN1400541A (en) * | 2002-08-20 | 2003-03-05 | 西安交通大学 | Multimedia real-time lessons-giving system based on IP web |
| CN1972402A (en) * | 2005-11-24 | 2007-05-30 | 腾讯科技（深圳）有限公司 | A control apparatus and method for video communication picture display |
| CN101640784A (en) * | 2008-07-28 | 2010-02-03 | 上海领世通信技术发展有限公司 | Device and method for controlling multi-image compounding in video conference system |
| CN101783919A (en) * | 2009-12-10 | 2010-07-21 | 上海华平信息技术股份有限公司 | Round-robin method based on video conference |
| CN102238341A (en) * | 2011-06-28 | 2011-11-09 | 中兴通讯股份有限公司 | Device and method for automatically switching video sub-pictures |
-
2011
- 2011-11-30 CN CN2011103887738A patent/CN102523420A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054694A (en) * | 1990-03-08 | 1991-09-18 | 秦方 | Multi-frame tv |
| CN1400541A (en) * | 2002-08-20 | 2003-03-05 | 西安交通大学 | Multimedia real-time lessons-giving system based on IP web |
| CN1972402A (en) * | 2005-11-24 | 2007-05-30 | 腾讯科技（深圳）有限公司 | A control apparatus and method for video communication picture display |
| CN101640784A (en) * | 2008-07-28 | 2010-02-03 | 上海领世通信技术发展有限公司 | Device and method for controlling multi-image compounding in video conference system |
| CN101783919A (en) * | 2009-12-10 | 2010-07-21 | 上海华平信息技术股份有限公司 | Round-robin method based on video conference |
| CN102238341A (en) * | 2011-06-28 | 2011-11-09 | 中兴通讯股份有限公司 | Device and method for automatically switching video sub-pictures |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103841353A (en) * | 2014-02-24 | 2014-06-04 | 广州华多网络科技有限公司 | Video interaction method, terminal, server and system |
| CN106878764A (en) * | 2015-12-01 | 2017-06-20 | 幸福在线（北京）网络技术有限公司 | A kind of live broadcasting method of virtual reality, system and application thereof |
| CN105828214A (en) * | 2016-03-31 | 2016-08-03 | 徐文波 | Method and apparatus for realizing interaction in video live broadcast |
| CN106293087A (en) * | 2016-08-09 | 2017-01-04 | 联想(北京)有限公司 | A kind of information interacting method and electronic equipment |
| CN106293087B (en) * | 2016-08-09 | 2019-07-26 | 联想(北京)有限公司 | A kind of information interacting method and electronic equipment |
| CN106846448A (en) * | 2017-02-09 | 2017-06-13 | 武汉吉客威睿数字科技有限公司 | A kind of micro- class method for recording and system based on virtual reality |
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Application publication date: 20120627 |