Brain activity related to time estimation processes in humans was analyzed using a perceptual phenomenon called auditory temporal assimilation. In a typical stimulus condition, two neighboring time intervals (T1 and T2 in this order) are perceived as equal even when the physical lengths of these time intervals are considerably different. Our previous event-related potential (ERP) study demonstr...

Title of dissertation: INFORMATION FLOW IN AN ATMOSPHERIC MODEL AND DATA ASSIMILATION Young-noh Yoon, Doctor of Philosophy, 2011 Dissertation directed by: Professor Edward Ott Department of Physics Weather forecasting consists of two processes, model integration and analysis (data assimilation). During the model integration, the state estimate produced by the analysis evolves to the next cycle ...

feature extraction is a main step in all perceptual image hashing schemes in which robust features will led to better results in perceptual robustness. simplicity, discriminative power, computational efficiency and robustness to illumination changes are counted as distinguished properties of local binary pattern features. in this paper, we investigate the use of local binary patterns for percep...

The method of model fitting, or adjoint method, is applied to a barotropic hurricane track forecast model described by DeMaria and Jones using a large sample of forecast cases. The sample includes all Atlantic tropical cyclones that reached hurricane intensity during the 1989–93 hurricane seasons (141 72-h forecasts of 17 storms). The cases considered by DeMaria and Jones are a subset of the pr...

In this paper, we present a framework to estimate local ventricular myocardium contractility using clinical MRI, a heart model and data assimilation. First, we build a generic anatomical model of the ventricles including muscle fibre orientations and anatomical subdivisions. Then, this model is deformed to fit a clinical MRI, using a semi-automatic fuzzy segmentation, an affine registration met...

Many, though not all, nonnative phonological contrasts pose discrimination difficulties. The Perceptual Assimilation Model attributes discrimination differences to listeners’ assimilations of nonnative phones to their native phonologies, which vary across languages. We examined perception of two !Xóõ click contrasts by American English speakers and speakers of Isizulu and Sesotho, African click...

Perceptual assimilation model posits that the perceived relation of non-native sounds to native sound categories predicts the discriminability of non-native sounds [1]. This study examines whether the degree of perceived similarity between Vietnamese tones and English intonation patterns predicts the accuracy of tone-contrast discrimination. In a categorization task, ten native English speakers...

The present study examines transfer effect in learning English pronunciation by Japanese learners of English. They are known to have pronunciation difficulty accommodating non-native target sounds, and the production of L2 (target language) sounds depends on, in part, how they have established phonetic criteria for L2 nonnative contrasts. Acoustic analysis was made on vowels in Japanese, Americ...

If commercial multimedia development continues to ignore the user-perspective in preference of other factors, i.e. user fascination (i.e. the latest gimmick), then companies ultimately risk alienating the customer. Moreover, by ignoring the user-perspective, future distributed multimedia systems risk ignoring accessibility issues, by excluding access for users with abnormal perceptual requireme...

Information and Communication Technology (ICT) affects how organizations deliver services to their customers. ICT is now used not only to improve back office routine activities but also to act as strategic partner for achieving organizational goals. Although ICT has many benefits for organizations, its assimilation is the most challenging process as there are high failure rates as reported by m...