CN104869365B - A kind of mouse tracking method and device based on straight recording and broadcasting system - Google Patents
A kind of mouse tracking method and device based on straight recording and broadcasting system Download PDFInfo
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- CN104869365B CN104869365B CN201510292757.7A CN201510292757A CN104869365B CN 104869365 B CN104869365 B CN 104869365B CN 201510292757 A CN201510292757 A CN 201510292757A CN 104869365 B CN104869365 B CN 104869365B
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- mouse
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Abstract
The present invention provides a kind of mouse tracking method and device based on straight recording and broadcasting system.The above method is the following steps are included: detection mouse acts on the mouse state data on the control picture shown on long-range instructor in broadcasting's control device, and the mouse state data are sent to main subject hall control device；The main subject hall control device controls the movement of tracking camera according to the mouse state data, to generate the tracking image of tracking mouse state.The present invention controls the pursuit movement of tracking camera according to mode of operation of the mouse on control picture, therefore the movement for arbitrarily controlling tracking camera can be carried out according to position of the mouse on control picture, not only guarantee suitable switching time and effect, but also can be carried out normal camera tracking.
Description
Technical field
The invention belongs to computer communication field more particularly to a kind of mouse tracking methods and dress based on straight recording and broadcasting system
It sets.
Background technique
In traditional straight recorded broadcast classroom teaching, the normal teaching tracking of teacher, which is divided into, to be automatically tracked and tracks manually, from
Motion tracking is exactly motion track of the video camera according to teacher, carries out the switching of corresponding camera tracking and seat in the plane；It tracks manually just
It is that the auxiliary in long-range instructor in broadcasting's platform is attended class personnel, according to real needs, manually the image switching between several seats in the plane, reaches
To good effect of going to school.Automatically track it is relatively good in the effect of camera tracking, but in the switching time of several seats in the plane and
Effect is undesirable, although and track can guarantee reasonable transition effect manually, but not can be carried out the tracking of normal camera.
Summary of the invention
The present invention provides a kind of mouse tracking method and device based on straight recording and broadcasting system, to solve the above problems.
The present invention provides a kind of mouse tracking method based on straight recording and broadcasting system.The above method is the following steps are included: detection
Mouse acts on the mouse state data on the control picture shown on long-range instructor in broadcasting's control device, and by the mouse state number
According to being sent to main subject hall control device；The main subject hall control device controls tracking camera according to the mouse state data
Movement, to generate the tracking image of tracking mouse state.
The present invention also provides a kind of mouse tracking devices based on straight recording and broadcasting system, comprising: detection unit is set to remote
Journey instructor in broadcasting's control device, the mouse state data acted on control picture for detecting mouse, and by the mouse state number
According to being sent to main subject hall control device；Instructor in broadcasting's unit is set to the main subject hall control device, for according to the mouse state
Data control the movement of the tracking camera, to generate the tracking image of tracking mouse state.
Compared to prior art, the mouse tracking method and device based on straight recording and broadcasting system provided according to the present invention, root
The pursuit movement of tracking camera is controlled according to mode of operation of the mouse on control picture, therefore can controlled according to mouse
Position on picture carries out the movement for arbitrarily controlling tracking camera, has not only guaranteed suitable switching time and effect, but also can be into
The normal camera tracking of row.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 show the stream for the mouse tracking method based on straight recording and broadcasting system that preferred embodiment according to the present invention provides
Cheng Tu；
Fig. 2 show the schematic diagram for the straight recording and broadcasting system that preferred embodiment according to the present invention provides；
Fig. 3 show the schematic diagram for the control picture that preferred embodiment according to the present invention provides；
Fig. 4 show the frame for the mouse tracking device based on straight recording and broadcasting system that preferred embodiment according to the present invention provides
Figure.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
Fig. 1 show the stream for the mouse tracking method based on straight recording and broadcasting system that preferred embodiment according to the present invention provides
Cheng Tu.As shown in Figure 1, the mouse tracking method based on straight recording and broadcasting system that presently preferred embodiments of the present invention provides includes step
102~104.
Step 102, detection mouse acts on the mouse state number on the control picture shown on long-range instructor in broadcasting's control device
According to, and mouse state data are sent to main subject hall control device.
Step 104, main subject hall control device controls the movement of tracking camera according to mouse state data, to generate tracking
The tracking image of mouse state.
In the present embodiment, mouse tracking method is applied in straight recording and broadcasting system, and straight recording and broadcasting system includes long-range instructor in broadcasting's control
Device 106, main subject hall control device 102 and subsidiary course hall control device 104 processed, main subject hall control device 102 and auxiliary class controlling
The interaction that audio/video flow can be carried out between device 104, can watch mutually situation of attending class in real time.Referring to fig. 2, long-range instructor in broadcasting controls dress
Set the straight recorded broadcast function of the audio/video flow of 106 controllable main subject hall control devices 102.Long-range instructor in broadcasting's control device 106 can be with
Monitor each seat in the plane picture in 102 side of main subject hall control device (i.e. control picture, referring to Fig. 3), long-range controllers are as needed
The picture for wishing to observe can be observed in such a way that mouse clicks tracking on the video pictures, long-range instructor in broadcasting controls dress
It sets the mouse state data that 106 will test and is sent to main subject hall control device 102, main subject hall control device 102 is made in turn
Order is executed accordingly, the picture for shooting tracking camera is the desired picture observed of long-range controllers.
According to the movement of mouse state data control tracking camera, there are many embodiments, typically as following cited
Three kinds of embodiments:
One of embodiment is:
Mouse state data mainly include coordinate data, i.e., long-range controllers operation mouse for example clicks control picture
When, the coordinate data of the click location on the control picture.The coordinate data is sent to main subject by long-range instructor in broadcasting's control device
Hall control device.The coordinate data is mapped to original video frame corresponding with control picture in turn by main subject hall control device
Coordinate position.The multimachine position picture that long-range instructor in broadcasting's control device is shown is scaled picture, therefore on control picture
Coordinate data needs be mapped to the coordinate position on original video frame.
After obtaining coordinate position, it will be able to be joined according to the shooting that the coordinate position finds out corresponding tracking camera
Number, wherein the corresponding unique acquisition parameters of each coordinate position in original video frame, the acquisition parameters include moving horizontally
Amplitude vertically moves amplitude and zoom magnification.
The movement of the tracking camera is controlled based on the acquisition parameters, i.e., tracking is controlled according to the amplitude that moves horizontally and taken the photograph
The movement of camera in the horizontal direction, according to vertically moving amplitude control tracking camera movement in vertical direction and root
According to zoom magnification control tracking camera focusing, this makes it possible to the tracking images generated centered on the coordinate position.
Therefore, long-range controllers only need to click mouse on the object for needing to amplify, so that it may be switched fast and put
Greatly on the object.
Another embodiment is that mouse state data include that mouse slides starting point coordinate data and glide direction information,
Long-range controllers sliding mouse on control picture, is able to detect that the different coordinate datas of mouse, by current number of coordinates
It is compared according to previous coordinate data, so that it may obtain the glide direction information of mouse, the glide direction information of mouse can
To be calculated by long-range instructor in broadcasting's control device, can also be calculated by main subject hall control device.Long-range instructor in broadcasting's control device is by mouse
Mark status data is sent to main subject hall control device.
Main subject hall control device is after receiving the mouse state data, by mouse sliding starting point coordinate data mapping
At the coordinate position of original video frame corresponding with the control picture；Corresponding tracking is found out according to the coordinate position
The acquisition parameters of video camera, wherein the corresponding unique acquisition parameters of each coordinate position in the original video frame；Based on institute
State the movement that acquisition parameters control the tracking camera, generate tracking image centered on the coordinate position and according to
The glide direction information controls the rotation direction of the tracking camera.
That is in addition to can switch on required target object image, can also according to mouse glide direction come into
The mobile tracking of row video pictures.Such as long-range controllers are slided with mouse in control picture and are watched in required image
Hold, then required amplification and mobile tracking image can be generated.
In another embodiment, which can also include mouse sliding speed other than glide direction,
In the above embodiments, the rotation direction of tracking camera, the main class controlling can be determined according to mouse glide direction
The mouse sliding speed is mapped to the movement velocity of tracking camera by device, and controls the tracking camera at described turn
Velocity of rotation on dynamic direction.In this way, in addition to the mobile tracking image of amplification can be obtained, additionally it is possible to according to mouse sliding speed
To control tracking velocity.
When detecting that the mouse stops sliding, the main subject hall control device controls the tracking camera and stops at
Current location.I.e. long-range controllers once discharge mouse, just stop tracking.
Fig. 4 show the frame for the mouse tracking device based on straight recording and broadcasting system that preferred embodiment according to the present invention provides
Figure.
As shown in figure 4, the mouse tracking device based on straight recording and broadcasting system of embodiment according to the present invention, may include:
Detection unit 402 is set to long-range instructor in broadcasting's control device 106, acts on control picture for detecting mouse
Mouse state data, and the mouse state data are sent to main subject hall control device 102；
Instructor in broadcasting's unit 404 is set to the main subject hall control device 102, for being controlled according to the mouse state data
The movement of the tracking camera, to generate the tracking image of tracking mouse state.
When mouse state data include coordinate data, instructor in broadcasting's unit 104 may include:
First mapping subelement, draws for the coordinate data to be mapped to original video corresponding with the control picture
The coordinate position in face；
First acquisition parameters obtain subelement, for finding out the bat of corresponding tracking camera according to the coordinate position
Take the photograph parameter, wherein the corresponding unique acquisition parameters of each coordinate position in the original video frame；
First control subelement is generated for being controlled the movement of the tracking camera based on the acquisition parameters with institute
State the tracking image centered on coordinate position.
When the mouse state data include mouse sliding starting point coordinate data and glide direction information, the instructor in broadcasting is single
Member may include:
Second map unit, it is corresponding with the control picture for being mapped to mouse sliding starting point coordinate data
The coordinate position of original video frame；
Second shooting parameter acquiring unit, for finding out the shooting of corresponding tracking camera according to the coordinate position
Parameter, wherein the corresponding unique acquisition parameters of each coordinate position in the original video frame；
Second control subelement is generated for being controlled the movement of the tracking camera based on the acquisition parameters with institute
It states the tracking image centered on coordinate position and controls the rotation side of the tracking camera according to the glide direction information
To.
When mouse state data further include mouse sliding speed, the mouse is slided speed by the main subject hall control device
Degree is mapped to the movement velocity of tracking camera, and controls velocity of rotation of the tracking camera in the rotation direction.
Wherein, the first control subelement or the second control subelement are also used to detect in the detection unit
When the mouse stops sliding, controls the tracking camera and stop at current location.
Compared to prior art, the mouse tracking method and device based on straight recording and broadcasting system provided according to the present invention, root
The pursuit movement of tracking camera is controlled according to mode of operation of the mouse on control picture, therefore can controlled according to mouse
Position on picture carries out the movement for arbitrarily controlling tracking camera, has not only guaranteed suitable switching time and effect, but also can be into
The normal camera tracking of row.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of mouse tracking method based on straight recording and broadcasting system, which comprises the following steps:
Detection mouse acts on the mouse state data on the control picture shown on long-range instructor in broadcasting's control device, and by the mouse
Mark status data is sent to main subject hall control device；
The main subject hall control device controls the movement of tracking camera according to the mouse state data, to generate tracking mouse
The tracking image of state；
The mouse state data include mouse sliding starting point coordinate data and glide direction information；
Mouse sliding starting point coordinate data are mapped to original corresponding with the control picture by the main subject hall control device
The coordinate position of beginning video pictures；
The acquisition parameters of corresponding tracking camera are found out according to the coordinate position, wherein in the original video frame
The corresponding unique acquisition parameters of each coordinate position；
The movement of the tracking camera is controlled based on the acquisition parameters, generates the tracing figure centered on the coordinate position
Picture and the rotation direction that the tracking camera is controlled according to the glide direction information；
The mouse state data further include mouse sliding speed；
The mouse sliding speed is mapped to the movement velocity of tracking camera by the main subject hall control device, and described in control
Velocity of rotation of the tracking camera in the rotation direction；
When detecting that the mouse stops sliding, the main subject hall control device controls the tracking camera and stops at currently
Position.
2. a kind of mouse tracking device based on straight recording and broadcasting system characterized by comprising
Detection unit is set to long-range instructor in broadcasting's control device, the mouse state number acted on control picture for detecting mouse
According to, and the mouse state data are sent to main subject hall control device；
Instructor in broadcasting's unit is set to the main subject hall control device, for being taken the photograph according to the mouse state data control tracking
The movement of camera, to generate the tracking image of tracking mouse state；
The mouse state data include mouse sliding starting point coordinate data and glide direction information；
Instructor in broadcasting's unit includes:
Second map unit is corresponding original with the control picture for being mapped to mouse sliding starting point coordinate data
The coordinate position of video pictures；
Second shooting parameter acquiring unit, the shooting for finding out corresponding tracking camera according to the coordinate position are joined
Number, wherein the corresponding unique acquisition parameters of each coordinate position in the original video frame；
Second control subelement is generated for being controlled the movement of the tracking camera based on the acquisition parameters with the seat
Tracking image centered on cursor position and the rotation direction that the tracking camera is controlled according to the glide direction information；
The mouse state data further include mouse sliding speed；
The mouse sliding speed is mapped to the movement velocity of tracking camera by the main subject hall control device, and described in control
Velocity of rotation of the tracking camera in the rotation direction；
The first control subelement or the second control subelement are also used to detect the mouse in the detection unit
When stopping sliding, controls the tracking camera and stop at current location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510292757.7A CN104869365B (en) | 2015-06-02 | 2015-06-02 | A kind of mouse tracking method and device based on straight recording and broadcasting system |
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| CN201510292757.7A CN104869365B (en) | 2015-06-02 | 2015-06-02 | A kind of mouse tracking method and device based on straight recording and broadcasting system |
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| CN104869365A CN104869365A (en) | 2015-08-26 |
| CN104869365B true CN104869365B (en) | 2018-12-18 |
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| CN106251334B (en) * | 2016-07-18 | 2019-03-01 | 华为技术有限公司 | A kind of camera parameters method of adjustment, instructor in broadcasting's video camera and system |
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| US6947044B1 (en) * | 1999-05-21 | 2005-09-20 | Kulas Charles J | Creation and playback of computer-generated productions using script-controlled rendering engines |
| CN101833882A (en) * | 2009-03-13 | 2010-09-15 | 北京同步科技有限公司 | Course recording system for teaching |
| CN103093654B (en) * | 2013-01-28 | 2014-12-03 | 北京航空航天大学 | Double video camera interactive intelligent tracking teaching system |
| CN103327310B (en) * | 2013-07-12 | 2016-11-02 | 浙江宇视科技有限公司 | A kind of monitoring followed the tracks of based on mouse track and cruise method |
| CN104519310B (en) * | 2013-09-29 | 2017-12-08 | 深圳锐取信息技术股份有限公司 | A kind of long-range instructor in broadcasting's control system |
| CN104268887B (en) * | 2014-09-30 | 2017-07-11 | 中智科创机器人有限公司 | A kind of camera attitude scaling method and device suitable for the switching of many scenes |
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