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Abstract - EvLIR: Learning Illumination Residuals from Ordered Events for Low-Light Image Enhancement
Low-light image enhancement is severely ill-posed when the input frame contains missing structure, saturated noise, and weak local contrast. Event cameras provide asynchronous brightness-change observations with high temporal resolution, but prior works often treat voxel channels as an unordered or static feature stack before fusion, rather than explicitly modeling their within-window temporal evolution, weakening the temporal evidence that makes events useful. We propose EvLIR, a temporal-residual enhancement framework that learns illumination residuals from ordered events for low-light image enhancement. Given a low-light frame and its aligned event voxel, EvLIR preserves the ordered temporal bins of the event stream and introduces a Temporal Event Residual Module (TERM) to encode short-window event dynamics with a lightweight ConvGRU. The resulting temporal state is converted into a bounded illumination correction, which provides spatially adaptive photometric guidance for Retinex-style illumination estimation and subsequent reliability-aware image-event restoration. On SDE and SDSD indoor/outdoor benchmarks, EvLIR achieves the best result on eleven of twelve dataset-metric pairs, with average scores of 25.63~dB PSNR, 28.30~dB PSNR*, and 0.827 SSIM across the four benchmarks.
基于有序事件学习光照残差的低光照图像增强方法 /
EvLIR: Learning Illumination Residuals from Ordered Events for Low-Light Image Enhancement
1️⃣ 一句话总结
本论文提出一种名为EvLIR的低光照图像增强框架,通过利用事件相机输出的有序时间信息(而非传统无序堆叠方式),结合轻量级的循环神经网络模块来捕捉短时间内光照变化的动态规律,从而更精确地修正暗光图像中的亮度、噪声和结构缺失问题,在多个公开数据集上取得了领先效果。