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Video annotation method and system based on classroom notes

A class and note-taking technology, which is applied in the field of video annotation methods and systems based on class notes, can solve the problems that class notes cannot be effectively combined with classroom teaching videos, and achieve the effect of cultivating study habits and improving learning efficiency

Pending Publication Date: 2020-12-22
武汉美和易思数字科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention proposes a video tagging method and system based on class notes to solve the problem that students’ class notes in online education cannot be effectively combined with classroom teaching videos

Method used

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  • Video annotation method and system based on classroom notes

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0033] see figure 1 , a schematic flow chart of a class note-based video tagging method provided by an embodiment of the present invention, the method includes:

[0034] S1. Obtain the classroom video of the teacher's online teaching, separate the audio and video of the classroom video, and obtain an audio file and a video file with a time axis;

[0035] S2. Obtain the class note picture of the student, extract the note information in the class no...

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Abstract

The invention discloses a video annotation method based on classroom notes, and the method comprises the steps of carrying out the audio and video separation of an online teaching classroom video, andobtaining an audio file and a video file with a time axis; obtaining classroom note pictures of students, extracting note information in the classroom note pictures, and extracting keywords in the note information and / or annotation information or complete statement information corresponding to the keywords; converting the audio file into a text file with a time axis, respectively determining timenodes of keywords in the note information in the audio file and the video file, and adding labels in corresponding video file frame pictures according to the time nodes; after all the class notes aremarked in the video file, synthesizing the marked video file and the audio file again, and obtaining the class video marked according to the class notes of the students. Classroom teaching videos andprivate classroom notes of students are combined to highlight the content focused by the students and improve the learning efficiency.

Description

technical field [0001] The present invention relates to the technical field of online education, in particular to a video labeling method and system based on classroom notes. Background technique [0002] In the process of online teaching, most teachers will combine PPT courseware or books to explain, and teachers may not record all the content explained in the courseware. Different students will take notes according to their own understanding to record what they think is important. Content. However, most students cannot mark the teaching video in real time during the teacher's class. Handwritten notes are still the most common way for students to quickly record. Correct handwritten notes help to cultivate students' good study habits. However, students' handwritten notes are separated from teachers' classroom teaching videos, and private classroom notes cannot be effectively combined with classroom videos. When students review classroom videos, they need to manually browse ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/78G11B27/10G06K9/32
CPCG06F16/7867G11B27/10G06V20/635G06V30/10Y02D10/00
Inventor 海克洪郭梁胡新海
Owner 武汉美和易思数字科技有限公司
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