Segmentation determination method and device for teaching videos

A segmentation device and video technology, which is applied in the field of video processing to achieve the effect of accurate segmentation

Active Publication Date: 2021-04-16
BEIJING CENTURY TAL EDUCATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Because the teaching video has the characteristics of basically no change in scene characteristics, the above-mentioned segmentation method suitable for film and television and documentaries is not suitable for teaching videos.

Method used

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  • Segmentation determination method and device for teaching videos
  • Segmentation determination method and device for teaching videos
  • Segmentation determination method and device for teaching videos

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Embodiment Construction

[0076] In order to better understand the above purpose, features and advantages of the present application, the solution of the present application will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0077] In the following description, a lot of specific details have been set forth in order to fully understand the present application, but the present application can also be implemented in other ways different from those described here; obviously, the embodiments in the description are only a part of the present application, and Not all examples.

[0078] The embodiment of the present application provides a method for segmenting teaching videos. Based on the characteristics of teaching videos, a specific segmentation strategy is selected to realize the automatic determination of the segmentation points of educational videos, as well...

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Abstract

The invention provides a segmentation determination method and device for teaching videos, and the method comprises the steps: extracting frame images of the teaching videos according to a first period, and forming an ordered image set; comparing the adjacent frame images in the ordered image set, and determining a temporary segmentation point; determining a first frame image and a second frame image according to the temporary segmentation points; comparing the blackboard writing areas of the first frame image and the second frame image, and determining a first similarity, wherein the first frame of image is a frame of image before the temporary segmentation point, and the second frame of image is a frame of image after the temporary segmentation point; deleting the corresponding temporary segmentation points according to the first similarity; and taking the remaining temporary segmentation points as actual segmentation points of the teaching video. The content of the blackboard-writing area has a direct relationship with the teaching theme, so that the temporary segmentation points can be screened more accurately by utilizing the content of the blackboard-writing area, and then the teaching videos can be segmented according to the content characteristics of the teaching videos.

Description

technical field [0001] The present application relates to the technical field of video processing, in particular to a method and device for determining the segmentation of teaching videos. Background technique [0002] In order to quickly locate a specific content area in a video and meet the needs of quick search and specific content extraction, there are currently methods for content identification of film and television and documentary videos based on video content to determine segmentation. [0003] The method of identifying the index points for film and television and documentary videos is mainly based on the fact that such videos have scene change characteristics, and the scenes before and after the change have significantly different characteristics, and the segmentation index is determined by using the large-scale changes of the image frame. [0004] Because the teaching video has the feature that the scene characteristics basically do not change, the above-mentioned...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/32G06K9/34G06K9/62G06Q50/20
Inventor 王鑫龙卢波王凯夫彭守业
Owner BEIJING CENTURY TAL EDUCATION TECH CO LTD
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