arXiv:2601.11685eess.IVcs.AI2026-01

针对边缘设备优化图像去模糊模型,兼顾速度与精度。

Towards Efficient Image Deblurring for Edge Deployment

  • 基于硬件感知的模型重构方法,通过敏感性块替换提升效率。
  • 在36层NAFNet基础上降低55% GMACs,延迟减少1.25倍。
  • 适用于移动设备,适合需要实时去模糊的部署场景。

图像去模糊是移动图像信号处理流程中的关键环节,需在恢复细节纹理与满足边缘设备实时性之间取得平衡。尽管近期基于Transformer和无激活函数架构的深度网络达到最先进的(SOTA)准确率,但其效率常以浮点运算量(FLOPs)或参数量衡量,无法反映嵌入式硬件上的实际延迟。本文提出一种硬件感知的适应性框架,通过敏感性引导的模块替换、代理蒸馏及基于设备性能分析的无训练多目标搜索,重构现有模型。应用于36层NAFNet基线模型,优化变体在保持竞争性准确率的同时,最多减少55%的GMACs。更重要的是,实际部署中延迟相比基线提升1.25倍。在运动去模糊(GoPro)、散焦去模糊(DPDD)及辅助基准(RealBlur-J/R, HIDE)上的实验验证了方法的通用性,与先前高效基线对比进一步证实了其在准确率-效率权衡上的优势。这些结果确立了反馈驱动的适应性作为连接算法设计与可部署去模糊模型的系统性策略。

原文摘要 · Abstract (English)

Image deblurring is a critical stage in mobile image signal processing pipelines, where the ability to restore fine structures and textures must be balanced with real-time constraints on edge devices. While recent deep networks such as transformers and activation-free architectures achieve state-of-the-art (SOTA) accuracy, their efficiency is typically measured in FLOPs or parameters, which do not correlate with latency on embedded hardware. We propose a hardware-aware adaptation framework that restructures existing models through sensitivity-guided block substitution, surrogate distillation, and training-free multi-objective search driven by device profiling. Applied to the 36-block NAFNet baseline, the optimized variants achieve up to 55% reduction in GMACs compared to the recent transformer-based SOTA while maintaining competitive accuracy. Most importantly, on-device deployment yields a 1.25X latency improvement over the baseline. Experiments on motion deblurring (GoPro), defocus deblurring (DPDD), and auxiliary benchmarks (RealBlur-J/R, HIDE) demonstrate the generality of the approach, while comparisons with prior efficient baselines confirm its accuracy-efficiency trade-off. These results establish feedback-driven adaptation as a principled strategy for bridging the gap between algorithmic design and deployment-ready deblurring models.

图像去模糊边缘计算模型压缩硬件感知

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