arXiv:2606.13580cs.CVcs.AI2026-06TPAMI被引 1

用事件相机提升视频超分辨率的纹理细节,解决模糊与闪烁问题。

EvTexture++: Event-Driven Texture Enhancement for Video Super-Resolution

论文配图:EvTexture++: Event-Driven Texture Enhancement for Video Super-Resolution
图 1 · 摘自论文原文
  • 利用事件信号的高频时空信息,分步增强纹理恢复。
  • 在Vid4数据集上提升最高达1.55 dB的PSNR,改善纹理清晰度。
  • 可即插即用,适合需要高细节输出的视频重建任务。

事件视觉因其超高帧率和极宽动态范围备受关注。现有工作将事件信号用于视频超分辨率(VSR)中的运动估计与时间对齐,而本文首次将事件信号聚焦于纹理增强。提出EvTexture++,首个专为VSR纹理增强设计的事件驱动框架,通过提取事件中的高频时空细节来提升纹理恢复能力。该方法包含定制的纹理增强分支和迭代纹理增强模块,逐步利用高时间分辨率事件信息进行纹理修复,实现跨迭代的渐进式纹理优化。此外,针对大运动导致的帧间纹理不一致和闪烁问题,引入时间纹理对齐模块,利用事件的连续时间运动线索,估计事件引导的纹理感知光流,实现精准的帧间纹理对齐。EvTexture++设计为即插即用组件,可灵活提升现有VSR模型性能。在五个数据集上的实验表明,其达到当前最优效果,集成至主流模型后,在纹理丰富的Vid4数据集上最大提升1.55 dB PSNR。

原文摘要 · Abstract (English)

Event-based vision has drawn increasing attention owing to its distinctive properties, including ultra-high temporal resolution and extreme dynamic range. Recent works have introduced it to video super-resolution (VSR) to enhance flow estimation and temporal alignment. In contrast, this paper shifts the focus of event signals from motion refinement to texture enhancement in VSR. We propose EvTexture++, the first event-driven framework dedicated to texture enhancement in VSR. It leverages high-frequency spatiotemporal details from events to improve texture recovery. EvTexture++ incorporates a customized texture enhancement branch, along with an iterative texture enhancement module that progressively exploits high-temporal-resolution event information for texture restoration. This enables gradual refinement of texture regions across iterations, yielding more accurate and detailed high-resolution outputs. Besides intra-frame texture recovery, large motions could degrade inter-frame temporal consistency, particularly in texture regions, leading to texture flickering. To mitigate this, we further exploit the continuous-time motion cues of events to enhance temporal consistency, introducing a temporal texture alignment module that estimates event-guided texture-aware flow for precise inter-frame texture alignment. Moreover, EvTexture++ is designed as a plug-and-play tool to flexibly boost the performance of existing VSR models. Experiments on five datasets demonstrate that EvTexture++ achieves state-of-the-art performance. When integrated into recent VSR models, it yields significant improvements, with gains of up to 1.55 dB in PSNR on the texture-rich Vid4 dataset. Code: https://github.com/DachunKai/EvTexture.

视频超分辨率事件相机纹理增强即插即用

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