Based on noise intensity, in this paper, we propose a feature-preserving smoothing algorithm for point-sampled geometry (PSG). The noise intensity of each sample point on PSG is first measured by using a combined criterion. Based on mean shift clustering, the PSG is then clustered in terms of the local geometry-features similarity. According to the cluster to which a sample point belongs, a mov...

A decision model based on that of McGill (1963) relating stimulus intensity to response latency is applied to conditioning and reactiontime data. Points of similarity and identity between this model, HullSpence behavior theory, and the theory of signal detection are indicated. It is suggested that the concept of a variable, experimentally manipulable detection criterion or reaction threshold is...

A new digital halftoning technique based on multiscale error diffusion is examined. We use an image quadtree to represent the difference image between the input gray-level image and the output halftone image. In iterative algorithm is developed that searches the brightest region of a given image via "maximum intensity guidance" for assigning dots and diffuses the quantization error noncausally ...

The problem of controlling a near-Hamiltonian noisy system so as to keep it within a domain of bounded oscillations is considered. An exponential risk-sensitive residence time criterion is introduced as a performance measure. An averaging procedure is developed to obtain the asymptotic solution of the optimal control problem. It is shown that the averaged HJB equation is reduced to a first orde...

several studies have been performed to evaluate the desertification in iran andother countries which led to present national and regional models. one of them is imdpamodel. this model was used as a case study in taraz nahid, saveh, iran. in this study, fivefactors including climate, soil, vegetation, irrigation, and socioeconomic ones wereevaluated. according to the region conditions for each c...

Abstract— Image Thresholding is one simplest method of image segmentation, which partitions the image into several objects on the basis of one or more threshold values. Threshold values are the values chosen from the intensity values of the image. In this paper, 8-bit unsigned gray scale images are taken as sample where the intensity values ranges from 0 to 255. Here Kapur's entropy criterion m...

This paper presents a variational level set method for simultaneous segmentation and bias field estimation of medical images with intensity inhomogeneity. In our model, the statistics of image intensities belonging to each different tissue in local regions are characterized by Gaussian distributions with different means and variances. According to maximum a posteriori probability (MAP) and Baye...

This paper has presented research in progress concerning the contribution of target costing approach to achievement competitive price in the Iraqi firm. The title of the paper is one of the subjects that get large concerns in the finance and business world in the present time. That is because many competitive firms have appeared in the regional and global markets and the rapid changes that cove...

We show that the presence of sufficiently significant switching costs, which are increasing in the degree of product differentiation, generates an equilibrium configuration with maximal differentiation within the framework of a Hotelling model with linear transportation costs. The equilibrium with maximal differentiation offers a formalization of the idea that competing firms have noncooperativ...

This paper is adapted from a speech given by James Bond at the International Energy Agency, 14 May 1998. The views expressed in this paper are those of the authors and should not be attributed in any manner to the World Bank, to its affiliated organisations, or to members of its board of executive directors or the countries they represent. The long-term price of oil should rest near its long ru...