用多个不同曝光的照片来恢复响应函数
本文讨论了一种差分方法用以减少该算法的复杂度
当不同曝光照片数减少时
相机相应函数恢复
一种通用方法是Debevec 和Malik 的算法
该函数的恢复对于成像至关重要
场景亮度到图像像素值的映射称为相机响应函数
关键词： 高动态范围成像
） Abstract： In high dynamic range imaging, it is important to estimate the radiometric response function of a camera that relates image pixel values to scene radiance
Among numerous existing approaches, Debevec and Malik's algorithm has been widely used to determine the response function from multiple differently exposed photographs
However, with this algorithm, the computational complexity goes up when the number of exposures decreases
The problem becomes serious in the case of two exposures
In this paper, we present a differential approach that can significantly reduce the complexity of their algorithm at small numbers of exposures
Experimental results illustrate the performance of the proposed method
Keywords： High dynamic range imaging; radiometric response function recovery; computational complexity 下载PDF阅读器 PDF全文下载： 初稿 （ 160 ） 作者简介： GU Zhenghui (1973-), Associate Professor, research interest: signal processing and pattern recognition 通信联系人： 【收录情况】 中国科技论文在线： 顾正晖
相机响应函数恢复的差分方法[EB/OL]
