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Method and device for identifying video clips

A video clip and recognition method technology, applied in the field of video clip recognition, can solve the problems of poor recognition accuracy and slow recognition process, and achieve the effect of alleviating poor recognition accuracy

Active Publication Date: 2019-10-11
北京慕华信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the object of the present invention is to provide a method and device for identifying video clips, so as to alleviate the technical problems of poor recognition accuracy and slow recognition process when using methods in the prior art for difficult point recognition

Method used

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  • Method and device for identifying video clips
  • Method and device for identifying video clips
  • Method and device for identifying video clips

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Experimental program
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Embodiment 1

[0024] According to an embodiment of the present invention, an embodiment of a method for identifying video clips is provided. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and , although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0025] figure 1 is a flow chart of a method for identifying video clips according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0026] Step S102, extracting the knowledge point tags of each video segment contained in the teaching video to obtain at least one knowledge point tag, wherein at least one knowledge point tag is used to indicate at least one knowledge point;

[0027] In the embodiment of the present invention, the knowledge po...

Embodiment 2

[0072] The embodiment of the present invention also provides a video segment identification device, the video segment identification device is mainly used to implement the video segment identification method provided by the above-mentioned content of the embodiment of the present invention, the video segment provided by the embodiment of the present invention is as follows The identification device is introduced in detail.

[0073] Figure 4 is a schematic diagram of a device for identifying video clips according to an embodiment of the present invention, such as Figure 4 As shown, the recognition device of this video segment mainly includes: extraction unit 41, classification unit 42, first determination unit 43 and second determination unit 44, wherein:

[0074] The extraction unit 41 is configured to extract the knowledge point label of each video clip contained in the teaching video to obtain at least one knowledge point label, wherein at least one knowledge point label ...

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Abstract

The invention provides a method and a device for identifying video clips. The method includes the following steps: extracting the knowledge point label of each video clip contained in a teaching video to get at least one knowledge point label; classifying a target test question by knowledge point based on the knowledge point labels of the video clips and the subtitle information of the video clips to get at least one category of test question group, wherein the target test question is a test question belonging to the teaching video, and different categories of test question groups correspond to different knowledge point labels; determining a target knowledge point corresponding to a target knowledge point label in the knowledge point labels based on the answer result of each test question group acquired, wherein the target knowledge point is a knowledge point above a preset difficulty in at least one knowledge point; and taking the video clip corresponding to the target knowledge point among the video clips as a difficulty clip. The technical problem that the method in the prior art is of low precision and slow in difficulty identification is alleviated.

Description

technical field [0001] The present invention relates to the technical field of video data processing, in particular to a method and device for identifying video segments. Background technique [0002] Video is an important carrier of online learning. When teachers record teaching videos, the videos recorded by different teachers have different focuses, and the difficulty of grasping knowledge points is also different. Traditional teaching videos are relatively long, one lesson corresponds to one video, and one video contains multiple knowledge points. Therefore, it is quite difficult to identify difficult knowledge points from the video, and to identify the starting positions of these knowledge points corresponding to the video. In the existing technical solutions, the approximate location of the video difficulty is generally obtained through feedback from a large number of students. However, manual feedback has certain disadvantages. For example, when there are a large nu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/488H04N21/8352H04N21/845G06F16/783G06F16/35
Inventor 朱海军
Owner 北京慕华信息科技有限公司