“video key-frame extraction”的概念、定义、翻译、参考文献-科学参考

单词	video key-frame extraction
释义	video key-frame extraction Encyclopedia 理学图像和视频分析释 video key frame extraction;video keyframe extraction;video key-frame extraction视频关键帧提取视频关键帧又称视频代表帧。关键帧提取是指从大量的非结构化视频数据中提取出具有较好代表性的少量视频帧图像来表征视频的主要内容，从而减少对视频中相似或冗余帧图像的分析计算等，能够大幅度地降低视频结构化分析所需要的运算量和复杂性，在很多视频处理相关应用中得到了广泛应用，包括视频摘要、视频浏览、视频概念检测、视频索引和基于内容的视频搜索等。
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