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About this paper

Rui Zhong, Yu Li, Zheyu Yan, Cheng Zhuo

Braco compresses image-token grids into a low-frequency DCT backbone, adds coordinate cues, and appends learned spatial residual tokens. On LLaVA-1.5-7B, 16 of 576 tokens produce 94.0 Acc., the mean of eight scores normalized by corresponding uncompressed Vanilla scores, versus QueCC’s 93.9; full-pipeline prefill latency is 40.59 versus 63.22 milliseconds. Evidence primarily concerns image VLM pipelines and falls below QueCC at four tokens.

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