Medical image enhancement based on window empirical mode decomposition algorithm

作者：Liang Ling Fei^*; Ping Zi Liang

来源：Journal of Optoelectronics - Laser, 2010, 21(9): 1421-1425.

• EMD
• Empirical Mode Decomposition
• High frequency
• High frequency data
• Histogram matching
• IMF
• Intrinsic Mode functions
• Medical image enhancement
• Medical images
• Residual components
• WEMD

A medical image enhancement algorithm based on window empirical mode decomposition(WEMD) is proposed. The high frequency data (intrinsic mode function, IMF) of the medical image can be acquired auto-adaptively by WEMD algorithm. On the basis of the IMF's histogram following the normal distribution, the high frequency details of the first few IMF components will be enhanced by modifying the IMF components with a histogram matching algorithm. The enhanced image can be obtained by adding up the modified IMF components and the residual component. The results show that the proposed algorithm is efficient in image enhancement and better than other current algorithms.

• 出版日期2010
• 单位北京大学