StreamEMS: Streaming Video Understanding with Self-Evolving Memory Scheme for Vision-Language Models

• URL: http://arxiv.org/abs/2608.27881v1
• Date: Fri, 28 Aug 2026 03:41:53 GMT
• Title: StreamEMS: Streaming Video Understanding with Self-Evolving Memory Scheme for Vision-Language Models
• Abstract summary: We present StreamEMS, a general mechanism for improving streaming video understanding by re-structuring the historical data stored in memory.<n>We first introduce a Semantic Evolution Module to evolve the memory into more information-dense representations.<n>We further introduce a Prior-informed Evolution Module to evolve memory into more robust representations.
• Score: 14.764143801328759
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Recently, many streaming video understanding methods have been proposed by constructing an external memory to store historical data for computational reduction. Most methods focus on optimizing the injection procedure of current data (write) and retrieving informative historical data (read) from memory, while overlooking the opportunity to further enhancing the representational capability of memory itself. In this work, we present StreamEMS, a general mechanism for improving streaming video understanding by re-structuring the historical data stored in memory through self-evolving memory scheme, enabling more informative and robust memory representations. Specifically, we first introduce a Semantic Evolution Module to evolve the memory into more information-dense representations by exploiting informative memory entities discovered via progressively shrinking semantic scales from coarse to fine. In addition, we further introduce a Prior-informed Evolution Module to evolve memory into more robust representations by leveraging prior memory distributions to refine the current memory state. We validate the effectiveness of our proposed designs on widely-used streaming video understanding datasets, i.e., OVO-Bench and StreamingBench, and the results showcase that our method performs better than other methods. Moreover, the advantage of our method becomes consistently evident even under high token usage drop rate settings, indicating the effectiveness and robustness of our method in unleashing the potential of the memory itself.

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