构建首个动态场景下闪烁去除的基准数据集,解决真实图像训练数据匮乏问题。
BurstDeflicker: A Benchmark Dataset for Flicker Removal in Dynamic Scenes
- 通过基于Retinex的合成方法可控生成多种闪烁模式。
- 采集4000张真实场景闪烁图像,涵盖多样光照与运动特征。
- 提出绿幕法在保持真实闪烁的同时引入动态运动,适合实际应用研究。
短曝光图像中的闪烁伪影由滚动快门相机的行曝光机制与交流电供电光源的时间强度变化相互作用引起,通常表现为图像中不均匀的亮度分布,形成明显暗带。这类结构化噪声不仅降低图像质量,还影响目标检测与跟踪等高层任务的可靠性。尽管闪烁现象普遍,但缺乏大规模、真实的训练数据严重制约了相关研究进展。为此,本文提出BurstDeflicker,一个通过三种互补采集策略构建的可扩展基准数据集:首先,开发基于Retinex的合成管道,重新定义闪烁去除目标,并可控制调节亮度、面积、频率等关键属性,实现多样化闪烁模式生成;其次,从不同场景采集4000张真实闪烁图像,帮助模型更好理解闪烁的空间-时间特性,提升对野外场景的泛化能力;最后,针对动态场景不可重复的问题,提出绿幕法,在保留真实闪烁退化的同时,将运动信息融入图像对。全面实验验证了该数据集的有效性及其推动闪烁去除研究的潜力。
原文摘要 · Abstract (English)
Flicker artifacts in short-exposure images are caused by the interplay between the row-wise exposure mechanism of rolling shutter cameras and the temporal intensity variations of alternating current (AC)-powered lighting. These artifacts typically appear as uneven brightness distribution across the image, forming noticeable dark bands. Beyond compromising image quality, this structured noise also affects high-level tasks, such as object detection and tracking, where reliable lighting is crucial. Despite the prevalence of flicker, the lack of a large-scale, realistic dataset has been a significant barrier to advancing research in flicker removal. To address this issue, we present BurstDeflicker, a scalable benchmark constructed using three complementary data acquisition strategies. First, we develop a Retinex-based synthesis pipeline that redefines the goal of flicker removal and enables controllable manipulation of key flicker-related attributes (e.g., intensity, area, and frequency), thereby facilitating the generation of diverse flicker patterns. Second, we capture 4,000 real-world flicker images from different scenes, which help the model better understand the spatial and temporal characteristics of real flicker artifacts and generalize more effectively to wild scenarios. Finally, due to the non-repeatable nature of dynamic scenes, we propose a green-screen method to incorporate motion into image pairs while preserving real flicker degradation. Comprehensive experiments demonstrate the effectiveness of our dataset and its potential to advance research in flicker removal.
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