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Adjusted-range self-normalized confidence interval construction for censored dependent data 期刊论文  OAI收割
ECONOMICS LETTERS, 2022, 卷号: 220, 页码: 5
作者:  
Sun, Jiajing;  Hong, Yongmiao;  Linton, Oliver;  Zhao, Xiaolu
  |  收藏  |  浏览/下载:25/0  |  提交时间:2023/02/07
Method of auto multi-exposure for high dynamic range imaging (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Piao Y.; Xu W.
收藏  |  浏览/下载:19/0  |  提交时间:2013/03/25
This paper proposes a method for calculating the multi-exposure times fast and accurately when the scene has a high dynamic range  minimizing the pictures needed to take and improving the dynamic range of the CCD system. The proposed method first measures the camera's response function referring [10]. After that the median value of the output picture is adjusted to be in the middle range of the system output by changing the exposure time. It can be inferred from the histogram of the current picture whether it's a high dynamic range scene by calculating the number of pixels under exposed and over exposed. Once again the under and over exposed pixels are adjusted to be in the middle according to the camera's response function. Finally different exposed pictures (2 or 3) are fused together by Gaussian function and the dynamic range is compressed by y correction. Experimental results on UNIQ-UM400 analog camera and a digital acquisition system show that the algorithm works well and solve the problem of low dynamic range of CCD camera. 2010 IEEE.