双流配准与金字塔融合用于交替曝光HDR视频
Double-stream registration with pyramid fusion for HDR video with alternating exposures
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中文总结 AI 辅助
针对交替曝光HDR视频重建中的亮度剧变难题,提出双流配准与金字塔融合框架,直接计算光流并引入中点位移处理过曝,实验优于现有方法。
中文摘要 AI 辅助
从交替曝光序列重建高动态范围(HDR)视频仍然具有挑战性,尤其是在亮度变化剧烈的区域。我们提出了一种基于双流配准和精确金字塔融合的新型HDR重建框架。给定三个连续帧,我们的方法直接与中心帧计算光流,同时引入互补的中点位移策略来处理严重过度曝光的情况。金字塔融合阶段随后将生成的辐射度图像和LDR图像合并为最终的HDR输出。实验结果表明,我们的方法在性能上持续优于现有最先进的方法。
英文摘要
High dynamic range (HDR) video reconstruction from al\-ter\-na\-ting-exposure sequences remains challenging, especially in regions with extreme luminance variation. We propose a novel HDR reconstruction framework based on dual-stream registration and accurate pyramid fusion. Given three consecutive frames, our method computes optical flow directly with the central frame, while introducing a complementary midpoint displacement strategy to handle cases with severe overexposition. A pyramid fusion stage then merges the resulting radiance and LDR images into a final HDR output. Experimental results demonstrate that our approach consistently outperforms state-of-the-art methods.
发表机构
- Universitat de les Illes Balears(巴利阿里群岛大学)
- Institute of Applied Computing and Community Code (IAC3)(应用计算与社区代码研究所(IAC3))
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