关键词: 高动态范围图像, 多曝光图像, 图像融合, 多尺度细节

Abstract: Image sequences are exposed differently in the same scene, often in areas that are underexposed or overexposed, thereby causing loss to the highlight details or the shadows. In order to solve this problem, multi-exposure HDR images reconstruction based on multi-scale detail fusion is proposed, which considers three measure factor of image, such as contrast, saturation and well-exposedness. This thesis maps the decomposed weight Gaussian pyramid through Dirichlet function, and assigns maximum weights for areas with rich information, then the HDR image can be reconstructed by the Laplace pyramid, which contains the maximal detail information and minimal distortion.

Key words: high dynamic range image, multi-exposure image, image fusion, multi-scale