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Reviewed in POC · content version 2

Review Video

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Definition

Video is a time-based visual modality made of image frames, often paired with audio for generation, understanding, tracking, or summarization.
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Plain-Language Explanation

Video is visual information arranged over time as a sequence of frames, often with synchronized audio. AI systems may analyze, summarize, generate, edit, or compare video.
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Why It Matters

Time introduces motion, sequence, continuity, and synchronization. A system that handles still images may miss events, causes, or changes that only appear across frames.
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Example

A safety system analyzes a factory video to track a forklift’s path and detect when a person enters its moving exclusion zone.
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Common Misconception

Video understanding is not just image recognition repeated frame by frame. Meaning may depend on timing, order, motion, and audio across the sequence.
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Remember It This Way

Video is visual data with time.
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Related Terms

* [[image|Image]] * [[audio|Audio]] * [[computer-vision|Computer Vision]] * [[multimodal|Multimodal]]
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Sources

* [W3C, “SMIL 2.0: BasicMedia Module”](https://www.w3.org/TR/SMIL2/extended-media-object.html) — distinguishes audio, still-image, and video media objects. * [W3C, “Understanding Media Alternative (Prerecorded)”](https://www.w3.org/WAI/WCAG21/Understanding/media-alternative-prerecorded) — defines video as moving or sequenced pictures and distinguishes synchronized media.
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Learn More

* Compare [[image|Image]], [[audio|Audio]], [[computer-vision|Computer Vision]], and [[multimodal|Multimodal]] to place Video in the surrounding system. * Follow the cited source material above for the method, standard, or research context behind this draft.
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