支撑集 meaning in English

support

Second , in this paper , we also research the arithmetic of wavelet and fractal , at last give a method to synthesize the two technologies . through experiments testify this method is feasible . choice of filter in wavelet image compression is a critical factor which affects image compression quality
选择滤波器时，人们一般考虑正交性、对称性、正则性、支撑集和消失矩阶数等滤波器本身的性质，却很少将他们与图像纹理特征、滤波器长度、压缩比等因素综合起来考虑。