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#block-matching

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01 ·Video Codecs·★ MEMBER·10 min read Motion Compensation from Scratch — Where 90% of Video Compression Happens What decides where a video codec's bits go isn't the transform or the quantizer — it's the prediction at the front door. What block matching actually minimizes, why motion vectors are not object motion, and how P/B reference structures and GOP boundaries turn into real streaming failures.