Parameterized Dynamic Range Reduction for UWB SAR Image
The visualization of ultra wide bandwidth synthetic aperture radar (UWB SAR) image data involves mapping from high dynamic range amplitude values to gray values of a lower dynamic range display device. In order to compress dynamic range of the UWB SAR image data appropriately, we examine several different dynamic range reduction techniques and come up to a new method with better visualization performance. This new arithmetical technique is analyzed based on the 3σ measurement and the amended mapping function. Compared with the original method, the new method has higher computational efficiency with the dark pixels are stretched appropriately and the bright details are well preserved.
Chao Li Yue-Li Li
College of Electronic Science and Engineering National University of Defense Technology, Changsha, China
国际会议
Progress in Electromagnetics Research Symposium 2014(2014年电磁学研究新进展学术研讨会)
广州
英文
179-183
2014-08-01（万方平台首次上网日期，不代表论文的发表时间）