ZHANG Tingting,CHEN Qixing,ZHENG Guoling.Research on FPGA-based Dark Channel Prior Image Dehazing Algorithm[J].Journal of Chengdu University of Information Technology,2026,41(02):180-184.[doi:10.16836/j.cnki.jcuit.2026.02.007]
基于FPGA的暗通道先验图像去雾算法研究
- Title:
- Research on FPGA-based Dark Channel Prior Image Dehazing Algorithm
- 文章编号:
- 2096-1618(2026)02-0180-05
- Keywords:
- image defogging; atmospheric scattering model; dark channel; transmittance; FPGA; real-time
- 分类号:
- TP391.4
- 文献标志码:
- A
- 摘要:
- 近年来,随着数字图像处理技术的迅猛发展,图像去雾技术成为科学研究和实际应用中的重要领域。提出一种基于FPGA的改进暗通道先验图像去雾算法,针对图像偏色现象,在估计大气光照强度时采用候选大气光位置选择的方法,以减少偏色影响。同时,在透射率计算中引入引导滤波,以平滑图像并提升亮度。在FPGA实现过程中,优化大气光候选位置的选择,降低大气光照强度的计算复杂度,并用低通滤波器替代引导滤波,进一步简化算法。实验结果表明,该算法能够以160帧/秒的速度对640×480分辨率的有雾图像进行快速去雾,显著提高图像质量和处理实时性,对各类应用系统性能的提升具有积极作用。
- Abstract:
- In recent years, with the rapid development of digital image processing technology, image dehazing technology has become one of the highly concerned fields in scientific research and practical applications. This article proposes a research on a dark channel prior image dehazing algorithm based on FPGA. The algorithm is optimized based on dark channel images, atmospheric light intensity, and transmittance, and improves image processing efficiency through hardware acceleration to meet the real-time dehazing requirements of high-definition images. The experiment shows that the algorithm can quickly remove fog from foggy images with a resolution of 640×480 at a frame rate of 160 frames per second, which has a positive driving effect on improving image quality, real-time performance, and various application system performance.
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相似文献/References:
[1]叶 开,丁 妍.一种结合物理模型和景深估算的图像去雾算法[J].成都信息工程大学学报,2021,36(04):390.[doi:10.16836/j.cnki.jcuit.2021.04.007]
YE Kai,DING Yan.A Dehazing Method Combining Physical Model and Depth Map Estimation[J].Journal of Chengdu University of Information Technology,2021,36(02):390.[doi:10.16836/j.cnki.jcuit.2021.04.007]
备注/Memo
收稿日期:2024-07-08
通信作者:陈启兴.E-mail:953060290@qq.com
