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新增项目:VideoToSlides #241

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YDX-2147483647 opened this issue Sep 30, 2024 · 3 comments
Open

新增项目:VideoToSlides #241

YDX-2147483647 opened this issue Sep 30, 2024 · 3 comments
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@YDX-2147483647
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名称

VideoToSlides

URL

https://github.com/leiyaocui/VideoToSlides

类别

👩‍🏫教学运行与考务

许可证

No response

包管理器

No response

补充信息

缺文档,我看能不能包装一下。

@YDX-2147483647 YDX-2147483647 added the add-project Add new project to best-of list label Sep 30, 2024
@YDX-2147483647
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YDX-2147483647 commented Oct 2, 2024

呃,怎么说呢?似乎与原项目 https://github.com/kaushikj/video2pdf 的区别主要是小细节(例如grab + 跳帧 + retrieve),核心算法都是OpenCV: Motion Analysis,而且这个项目为了性能刻意删掉了配置变量,去掉了进度显示。

另:我做了个实验,原本 m3u8 视频拼起来约 2 GiB,用 x264 能压缩到 0.4 GiB,而提取成幻灯片是 0.3 GiB。也许可用帧间压缩算法直接转成PDF? 这种情况是特例,一般幻灯片没这么大。

@YDX-2147483647
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YDX-2147483647 commented Oct 17, 2024

基于延河课堂录播视频提取的PPT逆向技术 - 文章 | BIT101

@YDX-2147483647
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随便一搜,研究还挺多的。

孙帆. 基于DBNet和Kalman滤波的教学视频摘要方法[D]. 河北:河北大学,2023.

图片

(没仔细看正文)

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