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Dual video stream directed broadcasting method and system

A dual video and video image technology, applied in the field of teaching, can solve the problems such as the inability to switch the pavement, the poor effect of the remote teaching scene, and the inability to switch the mainstream, so as to improve the effect of the scene.

Inactive Publication Date: 2015-09-16
SZ REACH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing technology has the following disadvantages: since the mainstream video and streaming video are collected by a single camera, the mainstream cannot switch between teacher close-up, student close-up, podium panorama and student panorama according to the status of teachers and students during distance teaching , the streaming cannot be switched between the teacher’s writing on the blackboard and computer video, resulting in poor on-site effect of remote teaching

Method used

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  • Dual video stream directed broadcasting method and system
  • Dual video stream directed broadcasting method and system
  • Dual video stream directed broadcasting method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Embodiment 1 of the present invention provides a flow of a dual video stream guiding method, see figure 1 , the method includes:

[0089] 101: Collect video images of the first camera, the second camera, the third camera, and the fourth camera.

[0090] In a specific implementation, the first camera can be used to take a panoramic view of the first student, the second camera can be used to take a close-up of the first student, the third camera can be used to take a panoramic view of the podium, and the fourth camera can be used to take a close-up of the teacher.

[0091] 102: Determine whether there is a first moving object in a standing state in the video image of the first camera, if yes, perform step 103a, and if no, perform step 103b.

[0092] 103a: Set the second camera as the first tracking camera, and adjust the pan / tilt of the second camera so that the second camera is aimed at the first moving target.

[0093] 103b: Judging whether there is a predetermined mo...

Embodiment 2

[0110] Embodiment 2 of the present invention provides a process flow of a dual video stream guiding method, see image 3 , the method includes:

[0111] 201: Collect video images of the sixth camera, the seventh camera, and the eighth camera.

[0112] In a specific implementation, the sixth camera can be used to take a panoramic view of the second student, the seventh camera can be used to take a close-up of the second student, and the eighth camera can be used to take a close-up of the second blackboard writing.

[0113] 202: Determine whether there is a second moving object in the video image of the eighth camera, if yes, perform step 203a, and if no, perform step 203b.

[0114] 203a: Set the eighth camera as the second tracking camera.

[0115] 203b: Determine whether there is a second moving object in a standing state in the video image of the sixth camera, if yes, execute step 204a; if no, execute step 204b.

[0116] 204a: Set the seventh camera as the second tracking ...

Embodiment 3

[0126] Embodiment 3 of the present invention provides a flow guide method for dual video streams, see Figure 5 , the method includes:

[0127] 301: The main teaching device collects video images of the first camera, the second camera, the third camera, and the fourth camera.

[0128] 302: The main teaching device judges whether there is a first moving object in a standing state in the video image of the first camera, if yes, execute step 303a, and if no, execute step 303b.

[0129] 303a: The main teaching device sets the second camera as the first tracking camera, and adjusts the pan / tilt of the second camera so that the second camera is aimed at the first moving object.

[0130] 303b: The main teaching device judges whether there is a predetermined moving target in the video image of the first camera, if yes, execute step 304a, and if no, execute step 304b.

[0131] 304a: The main teaching device sets the first camera as the first tracking camera.

[0132] 304b: The main ...

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Abstract

The invention belongs to the field of teaching, and discloses a dual video stream directed broadcasting method and a dual video stream directed broadcasting system. The dual video stream directed broadcasting method comprises the steps of: acquiring video images of first to fourth video cameras at first; judging whether a moving object in a standing state exists in the video image of the first video camera; if so, setting the second video camera as a tracking video camera; if not, then judging whether a predetermined moving object exists in the video image of the first video camera; if so, setting the first video camera as a tracking video camera; if not, then judging whether a predetermined moving object in the video image of the third video camera is motionless for a preset time; if so, setting the fourth video camera as a tracking video camera; if not, then setting the third video camera as a tracking video camera; sending a current video image of the tracking camera to a slave teaching device; and receiving and displaying a second current video image sent from the slave teaching device. Through the dual video stream directed broadcasting method and the dual video stream directed broadcasting system, the field effect of distance teaching is improved.

Description

technical field [0001] The invention relates to the field of teaching, in particular to a method and system for directing broadcast of dual video streams. Background technique [0002] Using the teaching system, participants can hear the voices of other venues, see the images, actions and expressions of participants in other venues, and can also send electronic presentation content to make participants feel like they are on the scene. [0003] The existing teaching system includes a first meeting place (1) and a second meeting place (2); the first meeting place (1) and the second meeting place (2) realize dual-stream video through network connection; wherein, the first meeting place (1) The first conference terminal is respectively connected to the auxiliary stream computer and the mainstream video screen; the auxiliary stream computer sends the auxiliary stream information to the first conference terminal; the first conference terminal is connected to the MCU through the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/15H04N5/232
Inventor 杨邵华
Owner SZ REACH TECH
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