Initial batch cover design method for online course video service

The invention provides an online course video service initial batch cover design method. The method comprises the following steps: constructing a video information base, and storing video course information; constructing a cover template library; constructing a lecturer information base; deploying a video caption extraction interface; deploying a video extraction PPT interface; deploying or obtaining a large model API interface; developing a specific interface according to the template; obtaining video subtitles; obtaining video courseware; generating a video abstract, and obtaining a text document; acquiring a video title; labeling the video content, and performing keyword extraction on the text document by calling the large model; generating propaganda words for the text content through the large model; generating a background image or a creative image related to the video content; obtaining text information of a lecturer from a lecturer information base; acquiring lecturer image information; and required i