关键词: Gabor滤波器组, 边缘提取, 颅脑MRI图像

Abstract: In the process of medical image processing，owing to brain MRI image edge extracted is not clear using common method，a new Gabor filter method is proposed based on short-term Fourier transform.In this method，a set of Gabor filters that can cover the entire frequency space for the given image are tuned，which is used to obtain the local information of the image，and then an accurate edge information can be developed by integrating this set of the Gabor filter outputs.Relative to the general Gabor method is computationally expensive and longer time-consuming，this method can observably reduce computational requirements.And it can detect the image edge efficiently and continuously and has excellent robustness.

Key words: Gabor filter banks, edge extraction, brain MRI image