Yin Yu, Xia Yang
School of Life Sciences and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2012 Feb;29(1):137-42.
Optical imaging of intrinsic signals is a secondary image of the cerebral cortex. The weak optical signal is decided by anatomical structure of brain. The spatial filter is a powerful technology for de-noising and image enhancement. We used different linear and nonlinear filters to deal with optical imaging. Furthermore, we compared the degree of noise suppression and discussed the image details. Our result showed that nonlinear median filter can keep more image details with effective noise reduction. It is useful for image enhancement of optical imaging.
内在信号的光学成像是大脑皮层的一种二次成像。微弱的光学信号由大脑的解剖结构决定。空间滤波器是一种强大的去噪和图像增强技术。我们使用了不同的线性和非线性滤波器来处理光学成像。此外，我们比较了噪声抑制程度并讨论了图像细节。我们的结果表明，非线性中值滤波器在有效降低噪声的同时可以保留更多图像细节。它对光学成像的图像增强很有用。
