The main contributions of this thesis are as follows:Generalized Gaussian distribution (GGD) is a nice model for the DCT coefficients and wavelet coefficients in theory and practice.

• 本文主要的内容和创新点包括:由于广义高斯分布GGD(Generalized Gaussian distribution)的高度灵活性,理论上和实际中它都可以非常好地描述离散余弦变换(DCT)和小波变换(Wavelet transform)的编码系数(Transform coefficients)。