CN118301270A

CN118301270A - Classroom recording and broadcasting method, device and system, electronic equipment and storage medium

Info

Publication number: CN118301270A
Application number: CN202310005841.0A
Authority: CN
Inventors: 余鹏飞; 黄奕聪
Original assignee: Guangzhou Kaidelian Software Technology Co ltd
Current assignee: Guangzhou Kaidelian Software Technology Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2024-07-05

Abstract

The application relates to a classroom recording and broadcasting method, a device, a system, electronic equipment and a storage medium, wherein the method comprises the following steps: when recording and broadcasting the current classroom, acquiring classroom behavior data corresponding to the classroom pictures shot by each camera equipment; and determining target classroom behavior data corresponding to the history teaching mode from the classroom behavior data according to the history teaching mode of the teacher, and switching the recorded and broadcast picture of the current classroom to a classroom picture corresponding to the target classroom behavior data. The embodiment of the application combines the classroom behavior data and the history teaching mode of the teacher to switch the recorded broadcast pictures in the classroom, thereby improving the accuracy of recorded broadcast picture switching.

Description

Classroom recording and broadcasting method, device and system, electronic equipment and storage medium

Technical Field

The present application relates to the field of video recording and playing technologies, and in particular, to a classroom recording and playing method, device, system, electronic device, and storage medium.

Background

In school education and teaching, classroom content is recorded and broadcast in a classroom sometimes so as to facilitate observers to learn about observation. In order to better present the classroom content to the viewer, it is often necessary to switch the recorded broadcast pictures of the classroom.

At present, a method of motion detection and identification is mainly used for switching recorded broadcast pictures in a classroom. Specifically, moving object detection is performed on videos shot by each lens, and when a moving object exists in the currently shot video, a recorded broadcast picture is switched to a video picture with the moving object. The recorded broadcast picture switching logic is mechanized, and the problems that recorded broadcast pictures are switched inaccurately and important teaching contents are missed by viewers easily occur.

Disclosure of Invention

Accordingly, the present application is directed to a classroom recording and broadcasting method, apparatus, system, electronic device, and storage medium, which can improve accuracy of recording and broadcasting picture switching.

According to a first aspect of an embodiment of the present application, there is provided a classroom recording and broadcasting method, including the steps of:

when recording and broadcasting the current classroom, acquiring classroom behavior data corresponding to the classroom pictures shot by each camera equipment;

And determining target classroom behavior data corresponding to the history teaching mode from the classroom behavior data according to the history teaching mode of the teacher, and switching the recorded and broadcast picture of the current classroom to a classroom picture corresponding to the target classroom behavior data.

According to a second aspect of the embodiment of the present application, there is provided a classroom recording and broadcasting device, including:

The data acquisition module is used for acquiring classroom behavior data corresponding to the classroom pictures shot by each camera equipment when recording and broadcasting the current classroom;

and the picture switching module is used for determining target classroom behavior data corresponding to the history teaching mode from all the classroom behavior data according to the history teaching mode of the teacher, and switching the recorded and broadcast picture of the current classroom to a classroom picture corresponding to the target classroom behavior data.

According to a third aspect of the embodiment of the present application, there is provided a classroom recording and broadcasting system, including:

recording and broadcasting equipment, a server and a plurality of camera shooting equipment;

When the recording and broadcasting equipment records and broadcasts the current class, acquiring class behavior data corresponding to class pictures shot by the shooting equipment;

And the recording and broadcasting equipment acquires a history teaching mode of a teacher from the server, determines target classroom behavior data corresponding to the history teaching mode from the classroom behavior data according to the history teaching mode, and switches a recording and broadcasting picture of the current classroom to a classroom picture corresponding to the target classroom behavior data.

According to a fourth aspect of an embodiment of the present application, there is provided an electronic apparatus including: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the classroom video recording method as described in any one of the above.

According to a fifth aspect of embodiments of the present application, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a classroom recording and broadcasting method as described in any one of the above.

According to the embodiment of the application, when recording and broadcasting is carried out on the current classroom, classroom behavior data corresponding to the classroom pictures shot by each camera equipment are obtained; and determining target classroom behavior data corresponding to the history teaching mode from the classroom behavior data according to the history teaching mode of the teacher, and switching the recorded and broadcast picture of the current classroom to a classroom picture corresponding to the target classroom behavior data. The embodiment of the application combines the classroom behavior data and the history teaching mode of the teacher to switch the recorded broadcast pictures in the classroom, thereby improving the accuracy of recorded broadcast picture switching.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

For a better understanding and implementation, the present application is described in detail below with reference to the drawings.

Drawings

Fig. 1 is a schematic flow chart of a classroom recording and broadcasting method according to an embodiment of the present application;

fig. 2 is a block diagram of a classroom recording and broadcasting device according to an embodiment of the present application;

Fig. 3 is a block diagram of a classroom recording and broadcasting system according to an embodiment of the present application;

Fig. 4 is a block diagram of an electronic device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the following detailed description of the embodiments of the present application will be given with reference to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of embodiments of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application as detailed in the accompanying claims. In the description of the present application, it should be understood that the terms "first," "second," "third," and the like are used merely to distinguish between similar objects and are not necessarily used to describe a particular order or sequence, nor should they be construed to indicate or imply relative importance. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, in the description of the present application, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The classroom recording and broadcasting method provided by the embodiment of the application can be executed by the classroom recording and broadcasting equipment, the classroom recording and broadcasting equipment can be realized in a software and/or hardware mode, and the classroom recording and broadcasting equipment can be composed of two or more physical entities or a physical entity. The classroom recording and broadcasting equipment can be any electronic equipment provided with data processing software, and the electronic equipment can be intelligent equipment such as a computer, a mobile phone, a tablet or a recording and broadcasting host computer. The classroom recording and broadcasting equipment of the embodiment of the application is a recording and broadcasting host, and particularly, the recording and broadcasting host is a recording and broadcasting host in a teaching room.

For ease of understanding, the following describes a recording host in some techniques. The recording and broadcasting host is connected with a plurality of camera devices and an audio acquisition device, and the camera devices are used for acquiring classroom pictures, wherein the classroom pictures comprise teacher pictures and student pictures. The audio collection device is used for collecting classroom audio, and the classroom audio comprises the sound of teachers and students. The recording and broadcasting host is used for receiving the classroom pictures sent by the plurality of camera devices and the classroom audio sent by the audio acquisition device, mixing the classroom pictures with the classroom audio to obtain the classroom recording and broadcasting video, and switching the video pictures of the classroom recording and broadcasting video so that a viewer can watch the classroom content.

Example 1

Fig. 1 is a schematic flow chart of a classroom recording and broadcasting method according to an embodiment of the application. The classroom recorded broadcast method provided by the embodiment of the application comprises the following steps:

S10: and when recording and broadcasting the current classroom, acquiring classroom behavior data corresponding to the classroom pictures shot by each camera equipment.

The image pickup device is used for shooting classroom pictures and comprises teacher image pickup equipment and student image pickup equipment. The teacher imaging device is used for shooting teacher pictures, including a teacher panoramic picture and a teacher close-up picture. The student camera shooting equipment is used for shooting student pictures, and the student pictures comprise a student panoramic picture and a student close-up picture.

The image pickup apparatus can recognize the classroom behavior in the classroom screen and obtain the classroom behavior data. Specifically, the teacher imaging apparatus may recognize the teacher behavior in the teacher screen, generate teacher behavior data, and the teacher behavior data may be a guide code corresponding to the teacher behavior. The student camera device can identify student behaviors in the student picture and generate student behavior data, and the student behavior data can be a guide code corresponding to the student behaviors.

In the embodiment of the application, a teacher starts a recording and broadcasting host, logs in a teacher account on the recording and broadcasting host, and controls the recording and broadcasting host to record and broadcast the current class. When the recording and broadcasting host records and broadcasts the current class, the recording and broadcasting host receives class behavior data corresponding to class pictures shot by each camera equipment.

S20: and determining target classroom behavior data corresponding to the history teaching mode from all the classroom behavior data according to the history teaching mode of the teacher, and switching the recorded and broadcast picture of the current classroom to the classroom picture corresponding to the target classroom behavior data.

Wherein, the history teaching mode of the teacher is a teaching style determined based on the history teaching behavior of the teacher. The history teaching mode of the teacher includes teacher teaching mode, student training mode, teacher-student interaction mode and mixed mode. The teacher's history teaching mode is stored in the server.

In the embodiment of the application, after receiving the classroom behavior data, if the classroom behavior data respectively indicate that the teacher behavior and the student behavior exist, the recording and broadcasting host acquires the history teaching mode of the teacher from the server, determines the target classroom behavior data corresponding to the history teaching mode from the classroom behavior data according to the history teaching mode of the teacher, and switches the recording and broadcasting picture of the current classroom to the classroom picture corresponding to the target classroom behavior data.

By applying the embodiment of the application, the classroom behavior data corresponding to the classroom pictures shot by each camera equipment are obtained when the current classroom is recorded and broadcast; and determining target classroom behavior data corresponding to the history teaching mode from all the classroom behavior data according to the history teaching mode of the teacher, and switching the recorded and broadcast picture of the current classroom to the classroom picture corresponding to the target classroom behavior data. The embodiment of the application combines the classroom behavior data and the history teaching mode of the teacher to switch the recorded broadcast pictures in the classroom, thereby improving the accuracy of recorded broadcast picture switching.

In an alternative embodiment, prior to step S20, S1-S3 are included, as follows:

S1: acquiring classroom behavior sample data of a plurality of sampling periods in a preset time period before a current classroom;

s2: according to classroom behavior sample data of a plurality of sampling periods, obtaining a teacher behavior occupancy rate and a teacher-student behavior conversion rate;

S3: and determining the history teaching mode of the teacher according to the occupancy of the teacher and the transformation rate of the teacher and student.

The preset time period may be a duration of one lesson or a duration of a plurality of lessons. The sampling period can be flexibly set according to the requirement, and can be 30s or 60s. For example, the duration of one lesson is 45min, the sampling period is 30s, and the sampling period number is 90.

In the embodiment of the application, the recording and broadcasting host receives the classroom behavior sample data sent by the teacher imaging device and the classroom behavior sample data sent by the student imaging device in each sampling period, namely the recording and broadcasting host receives a plurality of teacher behavior sample data and a plurality of student behavior sample data in each sampling period. The recording and broadcasting host needs to determine the final class behavior of each sampling period, namely whether the teacher behavior is dominant or the student behavior is dominant in the sampling period. After the final class behaviors of each sampling period are determined, the occupancy rate of the behaviors of the teacher and the conversion rate of the behaviors of the teachers and the students are determined, and the history teaching mode of the teacher can be automatically and quickly determined through the occupancy rate of the behaviors of the teacher and the conversion rate of the behaviors of the teachers and the students.

In an alternative embodiment, step S1, including S11-S15, is as follows:

S11: acquiring the number of first video guide codes, the number of second video guide codes, the speaking duration of a teacher and the speaking duration of a student in each sampling period; the first video guide code is generated from the classroom picture identification to the teacher behavior by the image pickup device, and the first video guide code is generated from the classroom picture identification to the student behavior by the image pickup device.

In the embodiment of the application, the teacher camera equipment can identify the teacher behavior in the teacher picture and generate the first video guide code. The teacher behavior has a mapping relation with the first video guide code. Each teacher behavior corresponds to a first video guide code. Specifically, the teacher behavior includes teacher-on-platform, teacher-off-platform, teacher movement, teacher multi-objective, teacher-on-board writing and multimedia operation, and the corresponding first video guide codes are respectively TeacherWalkUp、TeacherWalkDownPlatform、TeacherWalkMoving、TeacherKeepStand、TeacherHaveObjectMulti、SystemHDMI.

The student camera device may identify student behavior in the student picture, generating a second video guide code. And the student behavior and the second video guide code have a mapping relation. Each student action corresponds to a second video guide code. Specifically, the student behaviors comprise standing, close-up and seating of the students, standing of the students and platform laying of the students, and the corresponding second video guide codes are StudentStandUp, studentKeepStand, studentSitDown, studentHaveObjectMulti, studentWalkDownPlatform respectively.

The audio collection device collects classroom audio, including the sound of teachers and students. The audio collection device may identify a teacher speaking duration and a student speaking duration. Specifically, the audio collection device is internally provided with an ASR automatic speech recognition technology, and can automatically extract key information in class audio, including teacher speaking time, student speaking time, ASR recognition text results, text word numbers of the ASR recognition text results, main speaking/non-main speaking, age groups of speakers, gender of the speakers, clapping/clapping reading/discussion/single person speaking/other audio types.

S12: and determining the total number of the video guide codes in each sampling period according to the number of the first video guide codes and the number of the second video guide codes in each sampling period.

In the embodiment of the application, the total number of the video guide codes in each sampling period is the sum of the number of the first video guide codes and the number of the second video guide codes in each sampling period.

S13: traversing each sampling period, and determining that classroom behavior sample data of the corresponding sampling period indicates that teacher behavior exists when the ratio of the number of first video guide codes to the total number of video guide codes in the sampling period is greater than or equal to a preset threshold value;

s14: traversing each sampling period, and determining class behavior sample data corresponding to the sampling period to indicate student behaviors when the ratio of the number of second video guide codes to the total number of video guide codes in the sampling period is greater than or equal to a preset threshold value;

S15: traversing each sampling period, and determining that the class behavior sample data corresponding to the sampling period indicates the existence of teacher behavior if the speaking time of a teacher is longer than or equal to the speaking time of students when the ratio of the number of first video guide codes to the total number of video guide codes in the sampling period and the ratio of the number of second video guide codes to the total number of video guide codes in the sampling period are smaller than a preset threshold value; if the teacher speaking duration is smaller than the student speaking duration, determining class behavior sample data corresponding to the sampling period to indicate that student behaviors exist.

In the embodiment of the application, if the sampling period is 30 seconds, the recording and broadcasting host receives the first video guide codes sent by the teacher imaging equipment or the second video guide codes sent by the student imaging equipment every second, 30 video guide codes are generated in the sampling period of 30 seconds, the preset threshold value is 80%, and if the number of teacher behaviors is more than or equal to 80%, namely the number of the first video guide codes is more than or equal to 24, the final classroom behavior in the sampling period is determined to be the teacher behavior. And if the student behavior ratio is more than or equal to 80%, namely the number of the second video guide codes is more than or equal to 24, determining the final classroom behavior in the sampling period as the student behavior. If the teacher behavior number ratio and the student behavior number ratio are smaller than 80%, if the teacher speaking time is longer than the student speaking time, determining that the final class behavior in the sampling period is the teacher behavior, otherwise, determining that the final class behavior is the student behavior.

The final classroom behavior of each sampling period can be automatically and quickly determined through the number of the first video guide codes, the number of the second video guide codes, the speaking duration of a teacher and the speaking duration of a student.

In an alternative embodiment, step S2, including S21-S23, is as follows:

s21: determining the total number of classroom behaviors, the total number of teacher behaviors and the continuous number of the same classroom behaviors according to the classroom behavior sample data of a plurality of sampling periods;

S22: determining the ratio of the total number of teacher behaviors to the total number of classroom behaviors as a teacher behavior occupancy;

S23: the ratio of the difference of subtracting 1 from the continuous number of the same class behaviors to the total number of class behaviors is determined as the conversion rate of the teacher and the student behaviors.

In the embodiment of the application, teacher behaviors are represented by T, student behaviors are represented by S, the total number of classroom behaviors is N, the total number of teacher behaviors is NT, the occupancy Rt=NT/N of the teacher behaviors, the conversion rate Ch= (G-1)/N of the teacher behaviors, and G represents the continuous number of the same behaviors. For example, if the sampling result sequence is "TTSTSSTSSSTTT", the number of accumulated samples is 13 times, and 7 consecutive samples are present, ch= (7-1)/13.

Through the total number of classroom behaviors, the total number of teacher behaviors and the continuous number of the same classroom behaviors, the occupancy of the teacher behaviors and the conversion rate of the teacher and the student behaviors can be automatically and quickly determined.

In an alternative embodiment, step S3, including S31-S34, is as follows:

S31: if the teacher behavior occupancy is greater than or equal to a first preset threshold, determining that the history teaching mode of the teacher is teaching mode of the teacher;

s32: if the teacher behavior occupancy is smaller than or equal to a second preset threshold value, determining that the history teaching mode of the teacher is student practice type;

S33: if the conversion rate of the teacher and the students is greater than or equal to a third preset threshold value, determining that the history teaching mode of the teacher is a teacher-student dialogue;

S34: if the teacher behavior occupancy is greater than the second preset threshold, the teacher behavior occupancy is less than the first preset threshold, and the teacher-to-student behavior conversion rate is less than the third preset threshold, determining that the history teaching mode of the teacher is a hybrid type.

In the embodiment of the present application, the first preset threshold is 0.7, the second preset threshold is 0.3, and the third preset threshold is 0.4, and the teacher teaches: rt is more than or equal to 0.7, and students practice: rt is less than or equal to 0.3, and the teacher and student converse type: ch is greater than or equal to 0.4, and the mixed type: rt is more than 0.3 and less than 0.7, and Ch is more than 0.4.

By comparing the teacher behavior occupancy rate and the teacher-student behavior conversion rate with the first preset threshold value, the second preset threshold value and the third preset threshold value, the history teaching mode of the teacher can be automatically and quickly determined.

In an alternative embodiment, step S20, including S201-S205, is as follows:

s201: if the classroom behavior data respectively indicate that the teacher behavior and the student behavior exist, and the history teaching mode is the teacher teaching mode, determining that the target classroom behavior data corresponding to the history teaching mode is the classroom behavior data corresponding to the teacher behavior, and switching the recorded and broadcast picture of the current classroom to a teacher picture shot by the teacher camera equipment;

S202: if the classroom behavior data respectively indicate that teacher behaviors and student behaviors exist, and the history teaching mode is student exercise type, determining that target classroom behavior data corresponding to the history teaching mode is classroom behavior data corresponding to the student behaviors, and switching a recorded and broadcast picture of a current classroom to a student picture shot by student camera equipment;

S203: if the classroom behavior data respectively indicate that teacher behaviors and student behaviors exist, and the history teaching mode is a teacher-student interaction type or a mixed type, determining that target classroom behavior data corresponding to the history teaching mode is classroom behavior data corresponding to the teacher behaviors, and switching a recorded and broadcast picture of a current classroom to a teacher picture shot by teacher shooting equipment;

S204: if the data of each class behavior indicates that only teacher behaviors exist, switching the recorded and broadcast picture of the current class to a teacher picture shot by teacher shooting equipment;

s205: and if the data of each class behavior indicates that only student behaviors exist, switching the recorded and broadcast picture of the current class to a student picture shot by the student camera equipment.

In the embodiment of the present application, the recording host generally keeps displaying the recording picture for a period of time before switching the recording picture. In the period of time, the recording and broadcasting host receives the classroom behavior data corresponding to the classroom pictures shot by each camera equipment, and if each classroom behavior data indicates that the teacher behavior and the student behavior exist respectively, the recording and broadcasting host receives the teacher behavior data sent by the teacher camera equipment and also receives the student behavior data sent by the student camera equipment, and the recording and broadcasting host needs to switch the recording and broadcasting pictures according to the history teaching mode of the teacher. If the history teaching mode is teacher teaching mode, switching the recorded broadcast picture into a teacher picture; if the history teaching mode is student exercise mode, switching the recorded broadcast picture into a student picture; if the history teaching mode is a teacher-student interaction mode or a mixed mode, the recorded broadcast picture is switched to a teacher picture. By means of the history teaching mode of the teacher, accuracy of recorded broadcast picture switching is improved.

In the period, if the recording and broadcasting host only receives the teacher behavior data sent by the teacher camera equipment or only receives the student behavior data sent by the student camera equipment, at the moment, the recording and broadcasting host does not need to switch the recording and broadcasting picture of the current classroom to the teacher picture shot by the teacher camera equipment according to the teacher behavior data or directly switch the recording and broadcasting picture of the current classroom to the student picture shot by the student camera equipment according to the student behavior data, thereby improving the efficiency and accuracy of guiding and broadcasting picture switching.

Example 2

The following are examples of the apparatus of the present application that may be used to perform the method of example 1 of the present application. For details not disclosed in the device embodiment of the present application, please refer to the method in embodiment 1 of the present application.

Fig. 2 is a schematic structural diagram of a classroom recording and broadcasting device according to an embodiment of the present application. The classroom recording and broadcasting device 3 provided by the embodiment of the application comprises:

the data acquisition module 31 is configured to acquire classroom behavior data corresponding to a classroom picture captured by each image capturing device when recording and broadcasting a current classroom;

And the picture switching module 32 is used for determining target classroom behavior data corresponding to the history teaching mode from all the classroom behavior data according to the history teaching mode of the teacher, and switching the recorded and broadcast picture of the current classroom to the classroom picture corresponding to the target classroom behavior data.

In one embodiment of the present application, a screen switching module includes:

The first picture switching unit is used for switching the recorded and broadcast picture of the current classroom to the teacher picture shot by the teacher shooting equipment if the classroom behavior data respectively indicate the teacher behavior and the student behavior, the history teaching mode is the teacher teaching mode, the target classroom behavior data corresponding to the history teaching mode is the classroom behavior data corresponding to the teacher behavior;

The second picture switching unit is used for switching the recorded and broadcast picture of the current classroom to the student picture shot by the student camera equipment if the classroom behavior data respectively indicate teacher behavior and student behavior, the history teaching mode is student exercise type, the target classroom behavior data corresponding to the history teaching mode is classroom behavior data corresponding to the student behavior;

And the third picture switching unit is used for switching the recorded and broadcast picture of the current classroom to the teacher picture shot by the teacher shooting equipment if the classroom behavior data respectively indicate teacher behavior and student behavior, the history teaching mode is teacher-student interaction type or mixed type, the target classroom behavior data corresponding to the history teaching mode is classroom behavior data corresponding to the teacher behavior.

A fourth picture switching unit, configured to switch the recorded and broadcast picture of the current classroom to a teacher picture captured by the teacher imaging device if the data of each classroom behavior indicates that only teacher behavior exists;

and the fifth picture switching unit is used for switching the recorded and broadcast picture of the current classroom to the student picture shot by the student shooting equipment if the data of each classroom behavior indicate that only student behaviors exist.

Example 3

The following is an embodiment of the system of the present application, which may be used to perform the method of embodiment 1 of the present application. For details not disclosed in the device embodiment of the present application, please refer to the method in embodiment 1 of the present application.

Fig. 3 is a schematic structural diagram of a classroom recording and broadcasting system according to an embodiment of the present application. The classroom recorded broadcast system 1000 provided by the embodiment of the application comprises: a recording and playing device 2000, a server 3000 and a plurality of image pickup devices 4000;

When recording and broadcasting the current classroom, the recording and broadcasting device 2000 acquires classroom behavior data corresponding to the classroom pictures shot by the plurality of shooting devices 4000;

The recording and broadcasting device 2000 obtains the history teaching mode of the teacher from the server 3000, determines the target classroom behavior data corresponding to the history teaching mode from the various classroom behavior data according to the history teaching mode of the teacher, and switches the recording and broadcasting picture of the current classroom to the classroom picture corresponding to the target classroom behavior data.

The classroom recording and broadcasting system provided in the above embodiment 3 and the classroom recording and broadcasting method provided in the embodiment 1 belong to the same concept, and detailed implementation procedures are shown in method embodiments, and are not repeated here.

Example 4

The following are examples of the apparatus of the present application that may be used to perform the method of example 1 of the present application. For details not disclosed in the embodiment of the apparatus of the present application, please refer to the method of embodiment 1 of the present application.

Referring to fig. 4, the present application further provides an electronic device 300, which may be specifically a computer, a mobile phone, a tablet computer, a recording and playing device, and in an exemplary embodiment of the present application, the electronic device 300 is a recording and playing device, and the recording and playing device may include: at least one processor 301, at least one memory 302, at least one display, at least one network interface 303, a user interface 304, and at least one communication bus 305.

The user interface 304 is mainly used for providing an input interface for a user, and acquiring data input by the user. Optionally, the user interface may also include a standard wired interface, a wireless interface.

The network interface 303 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface), among others.

Wherein a communication bus 305 is used to enable connected communications between these components.

Wherein the processor 301 may include one or more processing cores. The processor uses various interfaces and lines to connect various portions of the overall electronic device, perform various functions of the electronic device, and process data by executing or executing instructions, programs, code sets, or instruction sets stored in memory, and invoking data stored in memory. Alternatively, the processor may be implemented in hardware in at least one of digital signal Processing (DIGITAL SIGNAL Processing, DSP), field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA), programmable logic array (Programmable Logic Array, PLA). The processor may integrate one or a combination of several of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU), and a modem, etc. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display layer; the modem is used to handle wireless communications. It will be appreciated that the modem may not be integrated into the processor and may be implemented by a single chip.

The Memory 302 may include a random access Memory (Random Access Memory, RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory includes a non-transitory computer readable medium (non-transitory computer-readable storage medium). The memory may be used to store instructions, programs, code sets, or instruction sets. The memory may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the above-described respective method embodiments, etc.; the storage data area may store data or the like referred to in the above respective method embodiments. The memory may optionally also be at least one storage device located remotely from the aforementioned processor. The memory as a computer storage medium may include an operating system, a network communication module, a user interface module, and an operating application program.

The processor may be configured to call an application program of the classroom recording method stored in the memory, and specifically execute the method steps of the foregoing embodiment 1, and the specific execution process may refer to the specific description shown in embodiment 1, which is not repeated herein.

Example 5

The present application also provides a computer readable storage medium, on which a computer program is stored, the instructions being adapted to be loaded by a processor and to execute the method steps of the above-described embodiment 1, and the specific execution process may refer to the specific description of the embodiment, which is not repeated herein. The storage medium can be an electronic device such as a personal computer, a notebook computer, a smart phone, a tablet computer and the like.

For the device embodiments, reference is made to the description of the method embodiments for the relevant points, since they essentially correspond to the method embodiments. The above-described apparatus embodiments are merely illustrative, in which components illustrated as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purposes of the present application. Those of ordinary skill in the art will understand and implement the present application without undue burden.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks and/or block diagram block or blocks.

In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, etc., such as Read Only Memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.

Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.

Claims

1. The classroom recording and broadcasting method is characterized by comprising the following steps:

2. The classroom recorded broadcast method of claim 1 wherein:

the classroom pictures shot by the camera equipment comprise teacher pictures shot by the teacher camera equipment and student pictures shot by the student camera equipment; the history teaching mode comprises teacher teaching mode, student training mode, teacher-student interaction mode and mixed mode;

And determining target classroom behavior data corresponding to the history teaching mode from the classroom behavior data according to the history teaching mode of the teacher, and switching the recorded and broadcast picture of the current classroom to a classroom picture corresponding to the target classroom behavior data, wherein the method comprises the following steps of:

if the classroom behavior data respectively indicate that teacher behaviors and student behaviors exist, and the history teaching mode is the teacher teaching mode, determining that target classroom behavior data corresponding to the history teaching mode is classroom behavior data corresponding to the teacher behaviors, and switching a recorded and broadcast picture of the current classroom to a teacher picture shot by the teacher camera equipment;

If the classroom behavior data respectively indicate that teacher behaviors and student behaviors exist, and the history teaching mode is the student exercise mode, determining that target classroom behavior data corresponding to the history teaching mode is classroom behavior data corresponding to the student behaviors, and switching a recorded and broadcast picture of the current classroom to a student picture shot by the student camera equipment;

If the classroom behavior data respectively indicate that teacher behaviors and student behaviors exist, and the history teaching mode is the teacher-student interaction mode or the mixed mode, determining that target classroom behavior data corresponding to the history teaching mode is classroom behavior data corresponding to the teacher behaviors, and switching a recorded and broadcast picture of the current classroom to a teacher picture shot by the teacher shooting equipment;

If the classroom behavior data indicate that only teacher behaviors exist, switching the recorded and broadcast picture of the current classroom to a teacher picture shot by the teacher shooting equipment;

And if the classroom behavior data indicate that only student behaviors exist, switching the recorded and broadcast picture of the current classroom to a student picture shot by the student shooting equipment.

3. The classroom recorded broadcast method according to claim 1 or 2, characterized in that:

And determining target classroom behavior data corresponding to the history teaching mode from the classroom behavior data according to the history teaching mode of the teacher, and before the step of switching the recorded and broadcast picture of the current classroom to the classroom picture corresponding to the target classroom behavior data, the method comprises the following steps:

acquiring classroom behavior sample data of a plurality of sampling periods in a preset time period before a current classroom;

Obtaining the occupancy rate of the teacher behaviors and the conversion rate of the teacher behaviors according to the classroom behavior sample data of the plurality of sampling periods;

And determining a history teaching mode of the teacher according to the teacher behavior occupancy and the teacher-student behavior conversion rate.

4. A classroom recording method according to claim 3, characterized by:

The step of acquiring classroom behavior sample data of a plurality of sampling periods in a preset time period before a current classroom comprises the following steps:

Acquiring the number of first video guide codes, the number of second video guide codes, the speaking duration of a teacher and the speaking duration of a student in each sampling period; the first video guide code is generated from the classroom picture identification to the teacher behavior by the camera equipment, and is generated from the classroom picture identification to the student behavior by the camera equipment;

Determining the total number of video guide codes in each sampling period according to the number of the first video guide codes and the number of the second video guide codes in each sampling period;

Traversing each sampling period, and determining that classroom behavior sample data corresponding to the sampling period indicates that teacher behavior exists when the ratio of the number of the first video guide codes to the total number of the video guide codes in the sampling period is greater than or equal to a preset threshold value;

Traversing each sampling period, and determining that classroom behavior sample data corresponding to the sampling period indicates student behavior when the ratio of the number of the second video guide codes to the total number of the video guide codes in the sampling period is greater than or equal to the preset threshold;

Traversing each sampling period, and determining that classroom behavior sample data corresponding to the sampling period indicates that teacher behavior exists if the teacher speaking time is greater than or equal to the student speaking time when the ratio of the number of the first video guide codes to the total number of the video guide codes in the sampling period and the ratio of the number of the second video guide codes to the total number of the video guide codes in the sampling period are all smaller than the preset threshold; and if the teacher speaking time is smaller than the student speaking time, determining that class behavior sample data corresponding to the sampling period indicates that student behaviors exist.

5. A classroom recording method according to claim 3, characterized by:

The step of obtaining the occupancy rate of the teacher behavior and the conversion rate of the teacher behavior according to the classroom behavior sample data of the plurality of sampling periods comprises the following steps:

Determining the total number of the classroom behaviors, the total number of the teacher behaviors and the continuous number of the same classroom behaviors according to the classroom behavior sample data of the plurality of sampling periods;

Determining the ratio of the total number of the teacher behaviors to the total number of the classroom behaviors as the occupancy of the teacher behaviors;

and determining the ratio of the difference value obtained by subtracting 1 from the continuous number of the same classroom behaviors to the total number of the classroom behaviors as the teacher-student behavior conversion rate.

6. A classroom recording method according to claim 3, characterized by:

The step of determining the history teaching mode of the teacher according to the teacher behavior occupancy and the teacher-to-student behavior conversion rate comprises the following steps:

If the teacher behavior occupancy is greater than or equal to a first preset threshold, determining that a history teaching mode of the teacher is teaching of the teacher;

if the teacher behavior occupancy is smaller than or equal to a second preset threshold value, determining that the history teaching mode of the teacher is student practice type;

if the conversion rate of the teacher and the student is greater than or equal to a third preset threshold value, determining that the history teaching mode of the teacher is a teacher-student dialogue type;

If the teacher behavior occupancy is greater than the second preset threshold, the teacher behavior occupancy is less than the first preset threshold, and the teacher-to-student behavior conversion rate is less than the third preset threshold, determining that the history teaching mode of the teacher is a hybrid type.

7. A classroom recording and broadcasting device, comprising:

8. A classroom recording and broadcasting system, comprising:

9. An electronic device, comprising: a processor, a memory and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any one of claims 1 to 6 when the computer program is executed.

10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the method according to any one of claims 1 to 6.