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题名: Guided filter-based fusion method for multiexposure images
作者: Hou XL(侯幸林); Luo HB(罗海波); Qi F(祁峰); Zhou PP(周培培)
作者部门: 光电信息技术研究室
通讯作者: 罗海波
关键词: high-dynamic range imaging ; image fusion ; guided filter ; multiexposure
刊名: Optical Engineering
ISSN号: 0091-3286
出版日期: 2016
卷号: 55, 期号:11, 页码:1-12
收录类别: EI
产权排序: 1
摘要: It is challenging to capture a high-dynamic range (HDR) scene using a low-dynamic range camera. A weighted sum-based image fusion (IF) algorithm is proposed so as to express an HDR scene with a high-quality image. This method mainly includes three parts. First, two image features, i.e., gradients and well-exposedness are measured to estimate the initial weight maps. Second, the initial weight maps are refined by a guided filter, in which the source image is considered as the guidance image. This process could reduce the noise in initial weight maps and preserve more texture consistent with the original images. Finally, the fused image is constructed by a weighted sum of source images in the spatial domain. The main contributions of this method are the estimation of the initial weight maps and the appropriate use of the guided filter-based weight maps refinement. It provides accurate weight maps for IF. Compared to traditional IF methods, this algorithm avoids image segmentation, combination, and the camera response curve calibration. Furthermore, experimental results demonstrate the superiority of the proposed method in both subjective and objective evaluations.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/19414
Appears in Collections:光电信息技术研究室_期刊论文

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Recommended Citation:
Hou XL,Luo HB,Qi F,et al. Guided filter-based fusion method for multiexposure images[J]. Optical Engineering,2016,55(11):1-12.
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