LEESDFormer:一个基于CNN-变压器的轻量级无监督曲线估计网络,用于低光图像增强,曝光抑制和无噪声
1National Key Laboratory of Automotive Chassis Integration and Bionics, Jilin University, Changchun 130025, China.
概括
本研究介绍了LEESDFormer,这是一种使用新的CNN-Transformer架构进行低光图像增强的无监督方法. 它有效地解决了噪音和混合暴露,实现了卓越的视觉质量和细节保存.
科学领域:
- 计算机视觉 计算机视觉
- 图像处理 图像处理
- 人工智能的人工智能
背景情况:
- 现有的低光增强方法在混合曝光和噪音方面扎,通常会丢失图像细节.
- 卷积神经网络 (CNN) 在捕获远程依赖和全球图像信息方面存在局限性.
研究的目的:
- 开发一种无监督的低光图像增强方法,克服当前方法的局限性.
- 引入一种新的CNN-Transformer架构,以改善低光图像增强和消噪.
主要方法:
- 提出一个低光增强和暴露抑制S形曲线 (LEES-S曲线) 以简化增强和暴露抑制.
- 使用CNN转换器架构 (LEESDFormer) 与低光图像增强和曝光抑制模块 (LEESM) 和图像拒绝模块 (IDM).
主要成果:
- 与最先进的无监督方法相比,LEESDFormer表现出优越的稳定性,概括性和视觉效果.
- 在LOL-v2真实数据集上实现了21dB的峰值信号噪声比 (PSNR),显示出强烈的增强和消除噪声.
- 该方法具有65K参数的效率,并在8ms内处理图像.
结论:
- LEESDFormer在无人监督的低光图像增强和消除噪音方面取得了重大进展.
- 拟议的LEES-S曲线和CNN-Transformer架构有效地处理复杂的低光条件.
- 该方法的效率和性能使其适合在资源有限的设备上部署.
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