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arXiv · 2610.02779

TRAC: Trajectory-aware Reuse and Adaptive Correction for Efficient Autoregressive Video Generation

Jiaxing Song·Weiqi Yan·You Huang·Mingte Qiu·Huazhong Liu·Xiaofeng Zhu·Yunshan Zhong
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Abstract

In this paper, we present trajectory-aware reuse and adaptive correction (TRAC), a training-free framework for efficient autoregressive (AR) video generation. Existing acceleration methods mainly target single-trajectory generation with bidirectional attention. AR video generation, by contrast, sequentially couples chunk-level denoising trajectories. Consequently, approximation errors accumulate and propagate through the generation process. TRAC addresses this challenge with three components, including robust cumulative scheduling (RCS), autoregressive trajectory-aware guidance scheduling (ATGS), and spectral structure correction (SSC). RCS selects cache reuse schedules by cumulative rollout error and cross-chunk/prompt variation. ATGS coordinates CFG refreshes along the global AR trajectory. SSC restores low-frequency structure of the first chunk to correct long-term structural loss. Experiments on SkyReels-V2 and FramePack-F1 show that, compared with existing methods, TRAC achieves both the highest inference efficiency and the best generation quality for AR video generation.

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Jiaxing Song, Weiqi Yan, You Huang, Mingte Qiu, Huazhong Liu, Xiaofeng Zhu, Yunshan Zhong. 2026-10-02. TRAC: Trajectory-aware Reuse and Adaptive Correction for Efficient Autoregressive Video Generation. https://arxiv.org/abs/2610.02779

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