Reproduce “StreamOV: Streaming Omni-Video Understanding via Evidence-Guided Memory and Response Triggering” on OpenResearch

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About this paper

Ming Xie, Zizheng Huang, Xudong Tan, Chao Wang, Xiangyu Zeng, Wenxiao Wu, Tao Chen, Limin Wang and 1 more

StreamOV introduces a framework for streaming omni-video understanding, integrating multimodal evidence construction and an evidence-guided long-short term memory to manage continuous audio-visual context. It also features an MLLM-as-a-trigger mechanism for proactive response decisions, achieving an average accuracy of 83.8% on its SOVBench-O benchmark and an F1 score of 90.5% for response triggering.

Key insights

  • Efficient streaming omni-video understanding benefits from a dual-perspective evidence construction that identifies both intrinsic stream dynamics and query-aware semantics.
  • An evidence-guided long-short term memory system can effectively manage continuous multimodal context within bounded resources, balancing recent detail with long-range significance.
  • Leveraging the MLLM's internal hidden states provides an intrinsic and efficient mechanism for autonomous response triggering, overcoming limitations of external routers or explicit silence tokens.

Summary by alphaXiv.

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