A Theory for Multiresolution Signal Decomposition: The Wavelet Representation
IEEE Transactions on Pattern Analysis and Machine Intelligence
Transform Coding of Images
Estimation-Quantization Geometry Coding Using Normal Meshes
DCC '03 Proceedings of the Conference on Data Compression
IEEE Transactions on Image Processing
On the modeling of DCT and subband image data for compression
IEEE Transactions on Image Processing
IEEE Transactions on Circuits and Systems for Video Technology
Modeling the distribution of DCT coefficients for JPEG reconstruction
Image Communication
A fast estimation method for the generalized Gaussian mixture distribution on complex images
Computer Vision and Image Understanding
Comparison of perceptual shaping techniques for digital image watermarking
DSP'09 Proceedings of the 16th international conference on Digital Signal Processing
ISICA'07 Proceedings of the 2nd international conference on Advances in computation and intelligence
Lightweight probabilistic texture retrieval
IEEE Transactions on Image Processing
Watermark detection on quantized transform coefficients using product bernoulli distributions
Proceedings of the 12th ACM workshop on Multimedia and security
Hi-index | 0.08 |
Generalized Gaussian distribution (GGD) is often used to characterize the statistical behaviour of a multimedia signal [J.R. Ohm, Multimedia Communication Technology, Representation, Transmission and Identification of Multimedia Signals. Springer, Berlin, 2004]. Although, the estimation of the shape parameter can be based on the maximum likelihood method, this method is computationally demanding. The computational complexity can be reduced by the application of the moment method for the first and second absolute moments. However, this method does not result in small error for the small values of GGD shape parameter. Furthermore, the inversion function often requires storing all control points of a curve.The method presented in this paper approximates the estimation of GGD shape parameter in the range 0.3-3 keeping small relative mean square error (RMSE) for this range. The method is based on the approximation of the moment method in four intervals. The assumed model allows a fast estimation of GGD shape parameter for real-time applications and requires storing only 12 coefficients.