background: volume estimation of brain is important for many neurological applications. it is necessary in measuring brain growth and changes in brain in normal/abnormal patients. thus, accurate brain volume measurement is very important. magnetic resonance imaging (mri) is the method of choice for volume quantification due to excellent levels of image resolution and between-tissue contrast. st...

The Fisher information (FI) measure is an important concept in statistical estimation theory and information theory. However, it has received relatively little consideration in image processing. In this paper, a novel algorithm is developed based on the nonparametric FI measure. The proposed algorithm determines the optimal threshold based on the FI measure by maximizing the measure of the sepa...

The present monograph studies the asymptotic behaviour of eigenvalues, products and functions of block Toeplitz matrices generated by the Fourier coefficients of a continuous matrix-valued function. This study is based on the concept of asymptotically equivalent sequences of non-square matrices. The asymptotic results on block Toeplitz matrices obtained are applied to vector asymptotically wide...

In this paper the authors discuss the most prominent views addressing the issue of how we imitate actions. It is argued that the existing theories lay along a continuum, with the direct mapping approach at one end (Butterworth, 1990; Gray, Neisser, Shapiro, & Kouns, 1991) the Active Intermodal Matching approach (Melzoff & Moore, 1997) in the middle, and the goal-directed theory (Bekkering, Wohl...

Comprehensive evaluation of electric power quality is essential to the implementation effective control. In traditional methods, weight indicators fixed and lacks flexibility. Aiming at this problem, paper has proposed a method based on improved grey correlation method. This uses analytic hierarchy process (IAHP) calculate subjective weights introduces entropy (IEWM) that modified using variabl...

This special issue is the second of two that honour Prof. Jeffrey Gray and were occasioned by his official retirement. The first went to press shortly before his death and so this second special issue must now be a memorial rather than the Festschrift that we had hoped to deliver to him. The first special issue (Neuroscience and Biobehavioral Reviews, 2004, No 3) concentrated on state and trait...

This paper describes a four-week project in active shape and appearance modeling, including experiments in shape and appearance modeling and a brief look at the fundamental theory. Shape modeling derives a statistical shape model from a set of example objects annotated with landmark points to generate new, similar object shapes. Shape modeling can be extended by gray-level modeling, where a sim...