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arXiv · 2509.22570

UniMIC: Token-Based Multimodal Interactive Coding for Human-AI Collaboration

Qi Mao·Tinghan Yang·Jiahao Li·Bin Li·Libiao Jin·Yan Lu
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Abstract

The rapid progress of Large Multimodal Models (LMMs) and cloud-based AI agents is transforming human-AI collaboration into bidirectional, multimodal interaction. However, existing codecs remain optimized for unimodal, one-way communication, resulting in repeated degradation under conventional compress-transmit-reconstruct pipelines. To address this limitation, we propose UniMIC, a Unified token-based Multimodal Interactive Coding framework that bridges edge devices and cloud AI agents. Instead of transmitting raw pixels or plain text, UniMIC employs compact tokenized representations as the communication medium, enabling efficient low-bitrate transmission while maintaining compatibility with LMMs. To further enhance compression, lightweight Transformer-based entropy models with scenario-specific designs-generic, masked, and text-conditioned-effectively minimize inter-token redundancy. Extensive experiments on text-to-image generation, text-guided inpainting, outpainting, and visual question answering show that UniMIC achieves substantial bitrate savings and remains robust even at ultra-low bitrates (<0.05bpp), without compromising downstream task performance. These results establish UniMIC as a practical and forward-looking paradigm for next-generation multimodal interactive communication.

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Qi Mao, Tinghan Yang, Jiahao Li, Bin Li, Libiao Jin, Yan Lu. 2025-09-26. UniMIC: Token-Based Multimodal Interactive Coding for Human-AI Collaboration. https://arxiv.org/abs/2509.22570

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