CN114745521A - Video recording device for novel remote online education - Google Patents
Video recording device for novel remote online education Download PDFInfo
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- CN114745521A CN114745521A CN202210358848.6A CN202210358848A CN114745521A CN 114745521 A CN114745521 A CN 114745521A CN 202210358848 A CN202210358848 A CN 202210358848A CN 114745521 A CN114745521 A CN 114745521A
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Abstract
The invention provides a video recording device for novel remote online education, which comprises: the monitoring module is used for monitoring a target video picture of a target student entering an online classroom and verifying the identity of the target student based on the target video picture; the video recording module is used for determining a video recording task based on the verification result and recording the target video pictures of the online classroom and the target students based on the video recording task to obtain a target video; and the video processing module is used for marking and summarizing the target videos and storing and managing the target videos based on the marking and summarizing result. By checking the target students of online education and recording videos after the checking is passed, the rigor of the videos of the online education is improved, and meanwhile, the obtained videos are marked, summarized and stored, so that the management effect of the later period of the videos is improved.
Description
Technical Field
The invention relates to the technical field of video recording, in particular to a video recording device for novel remote online education.
Background
At present, the existing monitoring video equipment mainly adopts DVR and NVR, wherein the DVR and the NVR adopt built-in hard disks for video recording, and the specific principle is that a coding video module in the DVR is controlled by a software system program to record a monitoring image into a video file in the hard disk, and when the monitoring image needs to be watched, a main control chip decodes and plays back the video file to realize the content display of the monitoring image.
However, the above-mentioned video recording method cannot automatically record video according to the video recording task, and the obtained video is only stored simply, and the corresponding video cannot be sorted;
therefore, the invention provides a video recording device for novel remote online education, which is used for verifying target students of online education and recording videos after the verification is passed, so that the rigor of the videos of the online education is improved, and meanwhile, the obtained videos are marked, summarized and stored, so that the later management effect of the videos is improved.
Disclosure of Invention
The invention provides a video recording device for novel remote online education, which is used for verifying target students of online education and recording videos after the verification is passed, so that the rigor of the videos of the online education is improved, and meanwhile, the obtained videos are marked, summarized and stored, so that the later management effect of the videos is improved.
The invention provides a video recording device for novel remote online education, which comprises:
the monitoring module is used for monitoring a target video picture of a target student entering an online classroom and verifying the identity of the target student based on the target video picture;
the video recording module is used for determining a video recording task based on the verification result, and recording the target video pictures of the online classroom and the target students based on the video recording task to obtain a target video;
and the video processing module is used for marking and summarizing the target video and storing and managing the target video based on a marking and summarizing result.
Preferably, the video recording device for the novel remote online education comprises a monitoring module and a display module, wherein the monitoring module comprises:
the monitoring instruction unit is used for acquiring student attendance monitoring instructions sent by the management terminal and monitoring target video pictures of target students entering an online classroom in real time based on the student attendance monitoring instructions, wherein at least one target student is provided;
and the display unit is used for determining the time sequence of the target students entering the online classroom when the target students are monitored to enter the online classroom, and displaying the target video pictures of the target students in a display area with a preset layout based on the time sequence.
Preferably, the video recording device for the novel remote online education comprises a display unit and a video recording device, wherein the display unit comprises:
the dynamic monitoring subunit is used for acquiring a target video picture of each target student displayed in the display area with the preset layout and monitoring whether the target video picture jumps in real time, wherein the jumping comprises the target student leaving the online classroom;
the position determining subunit is used for determining the position information of a target display area where a target video picture subjected to jumping is located when jumping occurs, and locking the target display area based on the position information;
and the display subunit is used for re-displaying the target display area re-locked by the target video picture of the abnormal student when the abnormal student corresponding to the target display area enters the online classroom again based on the locking result.
Preferably, the video recording device for the novel remote online education comprises a monitoring module and a display module, wherein the monitoring module comprises:
the image locking unit is used for acquiring a target video image of the target student entering an online classroom and intercepting a face image of the target student based on the target video image;
the identity determining unit is used for matching the face image with a preset face image in a preset image library and determining whether the face image corresponds to the preset face image one by one or not based on a matching result, wherein the preset face image is an identity registration image submitted by a target student when applying for online education;
the identity determining unit is used for determining the identity information of the target student when the face image corresponds to a preset face image in a one-to-one manner, and completing identity verification of the target student based on the identity information of the target student and the number information of the target student in the online classroom, wherein the preset face image is marked with corresponding identity information;
otherwise, the identity information of the unmatched target students is checked.
Preferably, the video recording device for the novel remote online education use, the identity determination unit, includes:
the abnormality determining subunit is used for marking the unmatched face image as an abnormal face image when the face image does not correspond to a preset face image;
the identity verification subunit is used for calling a preset student declaration information table and verifying the abnormal face image based on the preset student declaration information table, wherein the preset student declaration information table records identity information and a face image of a target student;
if the abnormal face image passes the verification, judging that the face image is not matched with a preset face image, and allowing a target student corresponding to the abnormal face image to enter the online classroom;
and if not, judging that the target students corresponding to the abnormal face images are not students in the online classroom, and reminding the students to the teacher terminal.
Preferably, a video recording device for novel remote online education, the video recording module includes:
the result acquisition unit is used for acquiring the identity verification result of the target student and determining the timestamp information of the online classroom when the verification is passed;
a video task determination unit, configured to determine a target explanation structure of the online classroom based on the timestamp information, and determine a video recording time period for the online classroom based on the target explanation structure, where the video recording time period is at least one period and includes a video recording start time and a video recording end time;
the video recording task determining unit is further configured to determine a video recording task based on the video recording time period and insert the video recording task into a preset video recording task list;
the video preparation unit is used for executing the video tasks in the preset video task list, displaying a video preview interface based on the video tasks, and identifying the subject object displayed in the first view-finding frame and the subject content displayed in the second view-finding frame based on the video preview interface;
the video recording preparation unit is further configured to determine target display positions of the subject object and the subject content in the first view frame and the second view frame, respectively;
the comparison unit is used for comparing the target display position with a preset display position and adjusting the inside of the first view frame and the inside of the second view frame when the target display position does not meet the requirement of the preset display position;
the device comprises a video parameter determining unit, a video processing unit and a video processing unit, wherein the video parameter determining unit is used for acquiring video configuration of a preset video device and setting the preset video device to be in a standby state based on the video configuration;
and the video recording unit is used for monitoring the explanation progress of the online classroom in real time, and starting the preset video recording device to record the video of the subject object displayed in the first view-finding frame and the subject content displayed in the second view-finding frame when the explanation progress meets the video recording time period corresponding to the video recording task, so as to obtain the target video.
Preferably, a video recording device for novel remote online education use, the video recording unit includes:
the synchronous video recording sub-unit is used for synchronously starting a standby video recording device to synchronously record the theme object displayed in the first view-finding frame and the theme content displayed in the second view-finding frame when the explanation progress meets the video recording time period corresponding to the video recording task to obtain a standby target video;
the video checking subunit is used for acquiring a target video, determining a first resolution of the target video, and comparing the first resolution with a preset resolution;
if the first resolution is smaller than the preset resolution, judging that the target video is unqualified, simultaneously determining a second resolution of the standby target video, and judging the video with larger values of the first resolution and the second resolution as the finally obtained target video;
otherwise, completing the video recording of the online classroom and the target video picture of the target student.
Preferably, the video recording device for the novel remote online education comprises a video recording task determining unit and a video recording task determining unit, wherein the video recording task determining unit comprises:
the video task checking subunit is used for acquiring the preset video task list and determining whether a target video task exists in the preset video task list;
the video task checking subunit is further configured to, when a target video task exists, extract the target video task from the preset task list, compare the video task with the target video task, and determine whether the target video task is of a type consistent with the video task;
if the types of the video recording tasks are consistent, judging whether the video recording time periods of the target video recording task and the video recording task are overlapped, and if so, taking the video recording time period with a large value of the video recording time period as a reference video recording time period and carrying out video recording based on the reference video recording time period;
otherwise, corresponding video recording operations are respectively executed based on the target video recording task and the video recording task.
Preferably, a video recording device for the novel remote online education, the video recording processing module includes:
the video acquisition unit is used for acquiring a target video obtained by video recording of a target video picture of an online classroom and a target student, and extracting student behavior data and online classroom content data contained in the target video, wherein the target video is at least one section of video;
the feature extraction unit is used for determining a video feature information sequence of the target video based on the student behavior data and the online classroom content data and intercepting video feature fragments in the target video based on the video feature information sequence;
the marking unit is used for inputting the video characteristic segments into a pre-trained video marking model to obtain identification labels corresponding to the target videos, and marking the target videos based on the identification labels, wherein the identification labels are used for marking different target videos of the same student;
the summarizing unit is used for determining a target video group corresponding to the same student based on the marking result and determining the recording sequence of different target videos in the target video group;
the video splicing unit is used for splicing different target videos in the target video group based on the recording sequence to obtain a summarized target video;
the video storage unit is used for determining the file type of the summarized target video and selecting a target storage space from a preset storage area based on the file type;
the video storage unit is further configured to determine a code stream of the summarized target video, and divide the target storage space into a target code stream layer storage space based on the code stream;
and the storage unit is also used for respectively storing the summarized target videos to corresponding target code stream layer storage spaces according to the code streams so as to finish the storage management of the target videos.
Preferably, a video recording device for the novel remote online education, the video recording storage unit, includes:
the retrieval subunit is used for acquiring a storage path of the target storage space and generating a retrieval file based on the storage path;
a retrieval file recording subunit, configured to write the retrieval file into the target storage space, and determine a target retrieval keyword based on the retrieval file;
and the transmission subunit is used for feeding the target retrieval keywords back to the student terminals and the teacher terminal based on a preset data transmission mode to complete the retrieval setting of the target video.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a system diagram of a video recording apparatus for use in a novel remote online education according to an embodiment of the present invention;
FIG. 2 is a block diagram of a monitoring module in a video recording device for use in the novel remote online education in accordance with an embodiment of the present invention;
FIG. 3 is a block diagram of a video recording module of a video recording apparatus for a novel remote online education according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1:
the embodiment provides a video recording device for novel remote online education, as shown in fig. 1, including:
the monitoring module is used for monitoring a target video picture of a target student entering an online classroom and verifying the identity of the target student based on the target video picture;
the video recording module is used for determining a video recording task based on the verification result and recording the target video pictures of the online classroom and the target students based on the video recording task to obtain a target video;
and the video processing module is used for marking and summarizing the target videos and storing and managing the target videos based on the marking and summarizing result.
In this embodiment, the target student refers to a user who performs learning through remote online education, and may be a student or an adult who needs to learn knowledge through online education.
In this embodiment, the target video image refers to that after the target students enter a classroom, the face video image of each target student is seen at the teacher terminal or the management terminal, and the face video image is the target video image.
In this embodiment, the identity verification of the target student means that whether all students receiving learning enter a classroom through the target video picture verification, and the target video pictures correspond to the corresponding identity information one to one.
In this embodiment, the video recording task refers to a time period of video recording, the number of video recordings, and the like.
In this embodiment, the target video refers to a video obtained by recording the lecture video of an instructor and the learning picture of a student in an online education classroom.
In this embodiment, the marking and summarizing process includes performing IP address marking and identity marking on a target video frame of each target student in a target video, and simultaneously splicing video frames to be spliced.
In this embodiment, the storage management means that the obtained target video is stored, and the search keyword and the like are determined according to the storage result, which is convenient for later retrieval and viewing.
The beneficial effects of the above technical scheme are: through checking the target students of online education, and recording video after the checking is passed, the rigor of the online education video is improved, and meanwhile, the obtained video is marked, summarized and stored, so that the management effect of the later period of the video is improved.
Example 2:
on the basis of the foregoing embodiment 1, this embodiment provides a video recording device for a novel remote online education, as shown in fig. 2, the monitoring module includes:
the monitoring instruction unit is used for acquiring student attendance monitoring instructions sent by the management terminal and monitoring target video pictures of target students entering an online classroom in real time based on the student attendance monitoring instructions, wherein at least one target student is provided;
and the display unit is used for determining the time sequence of the target students entering the online classroom when the target students are monitored to enter the online classroom, and displaying the target video pictures of the target students in a display area with a preset layout based on the time sequence.
In this embodiment, the student attendance detection instruction is that the lecturer triggers the management terminal, and the management terminal generates a corresponding monitoring instruction to monitor the situation that the student enters the classroom in real time.
In this embodiment, the display area of the preset layout is set in advance, for example, the display area may be a certain area on the display screen, and the area may be a 4 × 4 display square layout, or 8 × 8 layout, and the like.
The beneficial effects of the above technical scheme are: whether students enter a classroom or not is monitored in real time, and the sequence of the students entering the classroom is determined when the students enter the classroom, so that the video pictures of the students are ensured to be orderly realized, convenience is provided for later standard video recording, and the clarity and the rigor of the video recording are ensured.
Example 3:
on the basis of the above embodiment 2, the present embodiment provides a video recording device for use in novel remote online education, the display unit including:
the dynamic monitoring subunit is used for acquiring a target video picture of each target student displayed in the display area with the preset layout and monitoring whether the target video picture jumps in real time, wherein the jumping comprises the target student leaving the online classroom;
the position determining subunit is used for determining the position information of a target display area where a target video picture subjected to jumping is located when jumping occurs, and locking the target display area based on the position information;
and the display subunit is used for re-displaying the target display area re-locked by the target video picture of the abnormal student when the abnormal student corresponding to the target display area enters the online classroom again based on the locking result.
In this embodiment, the jumping refers to a case where the student enters the online classroom and then exits the online classroom.
In this embodiment, the target display area refers to a square or several squares in the display area with a preset layout, where the area where the target video frame jump occurs.
In this embodiment, the position information refers to a position of the target display area in the display area of the preset layout, and may be, for example, several rows and several columns.
In this embodiment, the locking refers to keeping the display window of the current target display area, and may be default display using a black display frame, or the like.
The beneficial effects of the above technical scheme are: through carrying out real-time supervision to the condition that the student got into online classroom, and keep the display window when taking place to leave the classroom, be convenient for this student get into the classroom once more and can get back to corresponding display position, be favorable to standardizing, effectual recording the video picture of target student.
Example 4:
on the basis of the foregoing embodiment 1, the present embodiment provides a video recording device for use in a novel remote online education, and the monitoring module includes:
the image locking unit is used for acquiring a target video image of the target student entering an online classroom and intercepting a face image of the target student based on the target video image;
the identity determining unit is used for matching the face image with a preset face image in a preset image library and determining whether the face image corresponds to the preset face image one by one or not based on a matching result, wherein the preset face image is an identity registration image submitted by a target student when applying for online education;
the identity determining unit is used for determining the identity information of the target student when the face image corresponds to a preset face image in a one-to-one manner, and completing identity verification of the target student based on the identity information of the target student and the number information of the target student in the online classroom, wherein the preset face image is marked with corresponding identity information;
otherwise, the identity information of the unmatched target students is checked.
In this embodiment, the face image refers to an image of a face area of a target student captured according to a target video frame of the target student in an online classroom.
In this embodiment, the preset image library is set for ten days and is used for storing the face verification images submitted by the target students when the online classroom is declared.
In this embodiment, the preset face image is a face image of a target student collected in advance.
The beneficial effects of the above technical scheme are: by intercepting the face image of the target student, the identity information of the target student can be accurately judged according to the face image, the number of students in an online classroom is ensured to be consistent with the number of reported students, the verification accuracy of the students in the online classroom is improved, and the prior guarantee is provided for accurately and effectively recording classroom videos.
Example 5:
on the basis of the foregoing embodiment 4, this embodiment provides a video recording device for use in novel remote online education, and the identity determining unit includes:
the abnormality determining subunit is used for marking the unmatched face image as an abnormal face image when the face image does not correspond to a preset face image;
the identity verification subunit is used for calling a preset student declaration information table and verifying the abnormal face image based on the preset student declaration information table, wherein the preset student declaration information table records identity information and a face image of a target student;
if the abnormal face image passes the verification, judging that the face image is matched with a preset face image in a wrong way, and allowing a target student corresponding to the abnormal face image to enter the online classroom;
and if not, judging that the target students corresponding to the abnormal face images are not students in the online classroom, and reminding the students to a teacher terminal.
In this embodiment, the abnormal face image refers to an image in which a face image captured from a target video frame is not matched with a preset face image, where the abnormal face image has two situations, which may be not a student in the online classroom, or may be a miss-match of the face image.
In this embodiment, the preset student declaration information table is identity registration information submitted by the student in applying for the online classroom, where the identity registration information includes the name, age, face image, and the like of the student.
In this embodiment, the prompting of the teacher terminal means that the teacher is prompted that the student has not entered the online classroom for a while, and the teacher terminal is used to prompt the student corresponding to the abnormal face image to perform declaration registration at present, so as to obtain the index of entering the online classroom.
The beneficial effects of the above technical scheme are: through checking unmatched face images, the accuracy of identity recognition is convenient to improve, matching errors are prevented, the rigor of online education video recording is improved, and the post processing of the video recording is convenient to perform according to identity information of students.
Example 6:
on the basis of the foregoing embodiment 1, this embodiment provides a video recording device for a novel remote online education, as shown in fig. 3, the video recording module includes:
the result acquisition unit is used for acquiring the identity verification result of the target student and determining the timestamp information of the online classroom when the verification is passed;
a video task determination unit, configured to determine a target explanation structure of the online classroom based on the timestamp information, and determine a video recording time period for the online classroom based on the target explanation structure, where the video recording time period is at least one period and includes a video recording start time and a video recording end time;
the video recording task determining unit is further configured to determine a video recording task based on the video recording time period and insert the video recording task into a preset video recording task list;
the video preparation unit is used for executing the video tasks in the preset video task list, displaying a video preview interface based on the video tasks, and identifying the subject object displayed in the first view-finding frame and the subject content displayed in the second view-finding frame based on the video preview interface;
the video recording preparation unit is further configured to determine target display positions of the subject object and the subject content in the first view frame and the second view frame, respectively;
the comparison unit is used for comparing the target display position with a preset display position and adjusting the inside of the first view frame and the inside of the second view frame when the target display position does not meet the requirement of the preset display position;
the device comprises a video parameter determining unit, a video processing unit and a video processing unit, wherein the video parameter determining unit is used for acquiring video configuration of a preset video device and setting the preset video device to be in a standby state based on the video configuration;
and the video recording unit is used for monitoring the explanation progress of the online classroom in real time, and starting the preset video recording device to record the video of the subject object displayed in the first view-finding frame and the subject content displayed in the second view-finding frame when the explanation progress meets the video recording time period corresponding to the video recording task, so as to obtain the target video.
In this embodiment, the timestamp information refers to the class time of the online class, such as the class time length of each class and the class time of each class.
In this embodiment, the target explanation structure refers to determining which part in the online classroom is the explanation stage, which part is the question making stage, and the like, based on the timestamp information of the online classroom.
In this embodiment, the video recording time period may be a time period for recording the whole process of the online classroom, or a time period for recording the content of the online classroom and the learning video pictures of the students according to the requirement.
In this embodiment, the video recording task includes specific time for recording an online classroom, start time, end time, number of segments to be recorded, and the like.
In this embodiment, the video preview interface is set in advance, and is used to check whether the video requirements are met at the management terminal.
In this embodiment, the first viewfinder is used to record the target video picture of each target student in the online classroom.
In this embodiment, the subject object refers to a learning picture of each target student, i.e., a face image of each student in an online classroom.
In this embodiment, the second viewfinder is used for recording the knowledge content of the on-line classroom explanation.
In this embodiment, the topic content refers to knowledge data such as knowledge points specifically explained in an online classroom.
In this embodiment, the preset display position is set in advance, and is used to measure whether the position where the subject object and the subject content are displayed meets the video recording requirement, for example, the preset display position may be a central position in a view finder.
In this embodiment, the video configuration refers to the preset resolution of the video device, the current working condition, the size, and the like.
The beneficial effects of the above technical scheme are: through the target structure and the timestamp information of the online classroom, the video recording task is accurately formulated, meanwhile, the position of a video recording picture and the video recording parameters are accurately adjusted in time, the online classroom content and the video pictures of target students are conveniently and efficiently, clearly and orderly recorded, and the obtained target video is ensured to be a high-quality video.
Example 7:
on the basis of the foregoing embodiment 6, this embodiment provides a video recording device for use in novel remote online education, the video recording unit including:
the synchronous video recording sub-unit is used for synchronously starting a standby video recording device to synchronously record the theme object displayed in the first view-finding frame and the theme content displayed in the second view-finding frame when the explanation progress meets the video recording time period corresponding to the video recording task to obtain a standby target video;
the video checking subunit is used for acquiring a target video, determining a first resolution of the target video, and comparing the first resolution with a preset resolution;
if the first resolution is smaller than the preset resolution, judging that the target video is unqualified, simultaneously determining a second resolution of the standby target video, and judging the video with the larger values of the first resolution and the second resolution as the finally obtained target video;
otherwise, completing the video recording of the online classroom and the target video picture of the target student.
In this embodiment, the standby video recording device is set in advance, and is used to record the theme object displayed in the first view frame and the theme content displayed in the second view frame synchronously, so as to ensure that the finally obtained target video is available.
In this embodiment, the first resolution refers to the resolution of the target video.
In this embodiment, the standby target video refers to a video image obtained after synchronous video recording.
In this embodiment, the preset resolution is set in advance, and is used to measure whether the resolution of the target video meets the definition requirement.
In this embodiment, the second resolution refers to the definition of the alternate target recording.
The beneficial effects of the above technical scheme are: the online classroom content and the video images of students are synchronously recorded, so that standby video can be conveniently recorded when the resolution of the target video does not meet the requirement, and the reliability of the video is improved.
Example 8:
on the basis of the foregoing embodiment 6, this embodiment provides a video recording device for use in novel remote online education, a video recording task determining unit, including:
the video task checking subunit is used for acquiring the preset video task list and determining whether a target video task exists in the preset video task list;
the video task checking subunit is further configured to, when a target video task exists, extract the target video task from the preset task list, compare the video task with the target video task, and determine whether the target video task is of a type consistent with the video task;
if the types of the video recording tasks are consistent, judging whether the video recording time periods of the target video recording task and the video recording task are overlapped, and if the types of the target video recording task and the video recording task are overlapped, taking the video recording time period with a large value of the video recording time period as a reference video recording time period, and carrying out video recording based on the reference video recording time period;
otherwise, corresponding video recording operations are respectively executed based on the target video recording task and the video recording task.
In this embodiment, the target video recording task refers to a video recording task existing in a preset video recording task list before the video recording task is inserted into the preset video recording task list.
In this embodiment, the reference recording period refers to recording according to a recording task of a ghost in the longest recording period.
The beneficial effects of the above technical scheme are: by checking the video tasks in the preset video task list, the video recording method is convenient for orderly video recording when the video tasks are overlapped, ensures the quality of video recording, and simultaneously improves the rigor of online education video recording.
Example 9:
on the basis of the foregoing embodiment 1, this embodiment provides a video recording device for use in novel remote online education, and the video recording processing module includes:
the video acquisition unit is used for acquiring a target video obtained by video recording of a target video picture of an online classroom and a target student, and extracting student behavior data and online classroom content data contained in the target video, wherein the target video is at least one video segment;
the feature extraction unit is used for determining a video feature information sequence of the target video based on the student behavior data and the online classroom content data and intercepting video feature fragments in the target video based on the video feature information sequence;
the marking unit is used for inputting the video characteristic segments into a pre-trained video marking model to obtain identification labels corresponding to the target videos, and marking the target videos based on the identification labels, wherein the identification labels are used for marking different target videos of the same student;
the summarizing unit is used for determining a target video group corresponding to the same student based on the marking result and determining the recording sequence of different target videos in the target video group;
the video splicing unit is used for splicing different target videos in the target video group based on the recording sequence to obtain a summarized target video;
the video storage unit is used for determining the file type of the summarized target video and selecting a target storage space from a preset storage area based on the file type;
the video storage unit is also used for determining a code stream of the summarized target video and dividing the target storage space into a target code stream layer storage space based on the code stream;
and the storage unit is also used for respectively storing the summarized target videos to corresponding target code stream layer storage spaces according to the code streams so as to finish the storage management of the target videos.
In this embodiment, the student behavior data refers to the speaking situation, the face appearance situation, and the like of the students in the online classroom.
In this embodiment, the content data refers to a knowledge point or the like designed in an online classroom.
In this embodiment, the video feature information sequence refers to video information in the target video that can obviously indicate the specific learning purpose to be achieved by the target video and the learning purpose of the students.
In this embodiment, a video feature segment refers to a certain segment of a target video corresponding to a video feature information sequence.
In this embodiment, the pre-trained video tagging model is set in advance, and is used to generate a corresponding identification tag according to the type of the target video.
In this embodiment, the target video group refers to a group of videos obtained by grouping target videos related to the same student.
In this embodiment, the preset storage area is set in advance, and is used to provide a storage space for the target video.
In this embodiment, the target storage space refers to a storage area suitable for storing the current target video.
In this embodiment, the code stream refers to a change of high and low levels in one second of the summarized target video, and is used to indicate a specific image data condition corresponding to the target video.
In this embodiment, the target bitstream layer storage space refers to that the storage space is divided into multiple layers according to the bitstream, which is convenient for realizing effective storage of the video.
In this embodiment, dividing the target storage space into target bitstream layer storage spaces based on the bitstream includes:
determining video recording channels for carrying out video recording on the online classroom and target video pictures of the target students, and simultaneously determining a code stream value corresponding to each video recording channel;
calculating a capacity value of a storage space required for storing the summarized target videos based on the code stream value, and the specific steps include:
calculating the capacity value of the storage space required for storing the summarized target video according to the following formula:
q represents the file size value of the video file corresponding to each video channel; alpha represents the bit rate corresponding to each video channel; h represents the time length of recording the target video pictures of the online classroom and the target students by each video recording channel; h represents the video storage time length corresponding to each video channel; m represents the capacity value of the storage space required by the summary target video; mu represents an error factor, and the value range is (0.05, 0.1);
the conversion scale factor of the file size of the video file and the capacity value of the storage space is represented, and the value range is (0.8, 0.95); i represents the number of the current video channels; n represents the total number of video channels; qiRepresenting the file size value of the video file corresponding to the ith video channel;
comparing the capacity value of the calculated storage space with the capacity value of the target storage space;
if the capacity of the storage space is smaller than or equal to the capacity value of the target storage space, judging that the target storage space can smoothly store the summarized target video, and storing the summarized target video to a corresponding code stream layer in the target storage space;
and if not, judging that the capacity value of the target storage space does not meet the storage requirement of the summarized target video, compressing and packaging the summarized target video, and storing the video recording package after compression and packaging to the target storage space.
The beneficial effects of the above technical scheme are: the obtained target video is marked, and the target video corresponding to the same student is spliced according to the marking result, so that the target video is efficiently and accurately collected, meanwhile, the target video is effectively stored according to the structural condition of the target video, the video file is convenient to effectively retain, and the management efficiency and the management effect of the target video are improved.
Example 10:
on the basis of the foregoing embodiment 9, this embodiment provides a video recording device for use in novel remote online education, and the video recording storage unit includes:
the retrieval subunit is used for acquiring a storage path of the target storage space and generating a retrieval file based on the storage path;
a retrieval file recording subunit, configured to write the retrieval file into the target storage space, and determine a target retrieval keyword based on the retrieval file;
and the transmission subunit is used for feeding back the target retrieval keywords to the student terminal and the teacher terminal based on a preset data transmission mode to complete the retrieval setting of the target videos.
In this embodiment, the storage path refers to a specific storage location of the video in the target storage space.
In this embodiment, retrieving the file refers to generating a retrieval link according to the storage path, so that a user can quickly and accurately find a corresponding video file when calling a video.
In this embodiment, the target search keyword is a term segment for providing a search, and the location of the video storage can be quickly found by using the keyword.
The beneficial effects of the above technical scheme are: by generating the corresponding retrieval key words after storage and reception, students and teachers can conveniently and accurately call and look up the video, and the management effect of the video files is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A video recording device for use in novel remote online education, comprising:
the monitoring module is used for monitoring a target video picture of a target student entering an online classroom and verifying the identity of the target student based on the target video picture;
the video recording module is used for determining a video recording task based on the verification result and recording the target video pictures of the online classroom and the target students based on the video recording task to obtain a target video;
and the video processing module is used for marking and summarizing the target videos and storing and managing the target videos based on the marking and summarizing result.
2. The video recording apparatus for use in novel remote online education as claimed in claim 1, wherein the monitoring module includes:
the monitoring instruction unit is used for acquiring student attendance monitoring instructions sent by the management terminal and monitoring target video pictures of target students entering an online classroom in real time based on the student attendance monitoring instructions, wherein at least one target student is provided;
and the display unit is used for determining the time sequence of the target students entering the online classroom when the target students are monitored to enter the online classroom, and displaying the target video pictures of the target students in a display area with a preset layout based on the time sequence.
3. The video recording device for use in novel remote online education as claimed in claim 2, wherein the display unit includes:
the dynamic monitoring subunit is used for acquiring a target video picture of each target student displayed in the display area with the preset layout and monitoring whether the target video picture jumps in real time, wherein the jumping comprises the target student leaving the online classroom;
the position determining subunit is used for determining the position information of a target display area where a target video picture subjected to jumping is located when jumping occurs, and locking the target display area based on the position information;
and the display subunit is used for re-displaying the target display area re-locked by the target video picture of the abnormal student when the abnormal student corresponding to the target display area enters the online classroom again based on the locking result.
4. The video recording device for use in novel remote online education as claimed in claim 1, wherein the monitoring module includes:
the image locking unit is used for acquiring a target video image of the target student entering an online classroom and intercepting a face image of the target student based on the target video image;
the identity determining unit is used for matching the face image with a preset face image in a preset image library and determining whether the face image corresponds to the preset face image one by one or not based on a matching result, wherein the preset face image is an identity registration image submitted by a target student when applying for online education;
the identity determining unit is used for determining the identity information of the target student when the face image corresponds to a preset face image in a one-to-one manner, and completing identity verification of the target student based on the identity information of the target student and the number information of the target student in the online classroom, wherein the preset face image is marked with corresponding identity information;
otherwise, the identity information of the unmatched target students is checked.
5. The video recording device for use in the novel remote online education defined in claim 4, wherein the identity determination unit includes:
the abnormality determining subunit is used for marking the unmatched face image as an abnormal face image when the face image does not correspond to a preset face image;
the identity verification subunit is used for calling a preset student declaration information table and verifying the abnormal face image based on the preset student declaration information table, wherein the preset student declaration information table records identity information and a face image of a target student;
if the abnormal face image passes the verification, judging that the face image is matched with a preset face image in a wrong way, and allowing a target student corresponding to the abnormal face image to enter the online classroom;
and if not, judging that the target students corresponding to the abnormal face images are not students in the online classroom, and reminding the students to a teacher terminal.
6. The video recording device for the novel remote online education use according to claim 1, wherein the video recording module comprises:
the result acquisition unit is used for acquiring the identity verification result of the target student and determining the timestamp information of the online classroom when the verification is passed;
the video recording task determining unit is used for determining a target explanation structure of the online classroom based on the timestamp information and determining a video recording time period of the online classroom based on the target explanation structure, wherein the video recording time period is at least one period and comprises video recording starting time and video recording ending time;
the video recording task determining unit is further configured to determine a video recording task based on the video recording time period and insert the video recording task into a preset video recording task list;
the video preparation unit is used for executing the video tasks in the preset video task list, displaying a video preview interface based on the video tasks, and identifying the subject object displayed in the first view-finding frame and the subject content displayed in the second view-finding frame based on the video preview interface;
the video recording preparation unit is further configured to determine target display positions of the subject object and the subject content in the first view frame and the second view frame, respectively;
the comparison unit is used for comparing the target display position with a preset display position and adjusting the inside of the first view finding frame and the inside of the second view finding frame when the target display position does not meet the requirement of the preset display position;
the device comprises a video parameter determining unit, a video processing unit and a video processing unit, wherein the video parameter determining unit is used for acquiring video configuration of a preset video device and setting the preset video device to be in a standby state based on the video configuration;
and the video recording unit is used for monitoring the explanation progress of the online classroom in real time, and starting the preset video recording device to record the video of the subject object displayed in the first view-finding frame and the subject content displayed in the second view-finding frame when the explanation progress meets the video recording time period corresponding to the video recording task, so as to obtain the target video.
7. The video recording device for the use of the novel remote online education as claimed in claim 6, wherein the video recording unit comprises:
the synchronous video recording sub-unit is used for synchronously starting a standby video recording device to synchronously record the theme object displayed in the first view-finding frame and the theme content displayed in the second view-finding frame when the explanation progress meets the video recording time period corresponding to the video recording task to obtain a standby target video;
the video checking subunit is used for acquiring a target video, determining a first resolution of the target video, and comparing the first resolution with a preset resolution;
if the first resolution is smaller than the preset resolution, judging that the target video is unqualified, simultaneously determining a second resolution of the standby target video, and judging the video with larger values of the first resolution and the second resolution as the finally obtained target video;
otherwise, completing the video recording of the online classroom and the target video picture of the target student.
8. The video recording apparatus for use in the novel remote online education defined in claim 6, wherein the video recording task determination unit includes:
the video task checking subunit is used for acquiring the preset video task list and determining whether a target video task exists in the preset video task list;
the video task checking subunit is further configured to, when a target video task exists, extract the target video task from the preset task list, compare the video task with the target video task, and determine whether the target video task is of a type consistent with the video task;
if the types of the video recording tasks are consistent, judging whether the video recording time periods of the target video recording task and the video recording task are overlapped, and if so, taking the video recording time period with a large value of the video recording time period as a reference video recording time period and carrying out video recording based on the reference video recording time period;
otherwise, corresponding video recording operations are respectively executed based on the target video recording task and the video recording task.
9. The video recording device for use in novel remote online education as claimed in claim 1, wherein the video recording processing module includes:
the video acquisition unit is used for acquiring a target video obtained by video recording of a target video picture of an online classroom and a target student, and extracting student behavior data and online classroom content data contained in the target video, wherein the target video is at least one section of video;
the feature extraction unit is used for determining a video feature information sequence of the target video based on the student behavior data and the online classroom content data and intercepting video feature fragments in the target video based on the video feature information sequence;
the marking unit is used for inputting the video characteristic segments into a pre-trained video marking model to obtain identification labels corresponding to the target videos, and marking the target videos based on the identification labels, wherein the identification labels are used for marking different target videos of the same student;
the summarizing unit is used for determining a target video group corresponding to the same student based on the marking result and determining the recording sequence of different target videos in the target video group;
the video splicing unit is used for splicing different target videos in the target video group based on the recording sequence to obtain a summarized target video;
the video storage unit is used for determining the file type of the summarized target video and selecting a target storage space from a preset storage area based on the file type;
the video storage unit is further configured to determine a code stream of the summarized target video, and divide the target storage space into a target code stream layer storage space based on the code stream;
and the storage unit is also used for respectively storing the summarized target video to corresponding target code stream layer storage spaces according to the code streams to finish the storage management of the target video.
10. The video recording apparatus for use in novel remote online education as claimed in claim 9, wherein the video recording storage unit includes:
the retrieval subunit is used for acquiring a storage path of the target storage space and generating a retrieval file based on the storage path;
a retrieval file recording subunit, configured to write the retrieval file into the target storage space, and determine a target retrieval keyword based on the retrieval file;
and the transmission subunit is used for feeding the target retrieval keywords back to the student terminals and the teacher terminal based on a preset data transmission mode to complete the retrieval setting of the target video.
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