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Under the information fidelity definition, a high-quality caption should maximize coverage of video content while avoiding the introduction of erroneous content not present in the video.
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9/11/2026
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UnverifiedThis research proposes redefining caption quality from the perspective of "information fidelity," examining whether a caption faithfully and completely conveys the key information in the video.75% similarUnverifiedMost existing video captioning evaluation methods only produce a single overall score and are unable to perform fine-grained decomposition analysis of caption quality.72% similarUnverifiedPerplexity's video mode relies on YouTube's subtitle/transcript text for semantic segmentation and summarization, rather than genuinely performing multimodal understanding of video frames, so its coverage of videos without subtitles drops significantly.70% similarUnverifiedNearly all mainstream video captioning evaluation methods rely on matching model-generated text against human-annotated reference answers, with higher match scores yielding higher results.70% similar
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