This paper presents an objective singing quality evaluation approach based on a study of the relationship between acoustic measurements and perceptual ratings of singing voice quality. Individual perceptual criteria’s contributions to the overall rating are also investigated to find significant evaluation terms. Experimental results show that critical perceptual criteria for singing evaluation ...

The traditional way of stereoscopic rendering requires rendering the scene for left and right eyes separately; which doubles the rendering complexity. In this study, we propose a perceptually-based approach for accelerating stereoscopic rendering. This optimization approach is based on the Binocular Suppression Theory, which claims that the overall percept of a stereo pair in a region is determ...

Heterogeneity of perceptions is a neglected issue in market segmentation studies. Only recently parametric approaches toward modeling segmented perception-preference structures such as combined MDS and Latent Class procedures have been introduced. A completely different nonparametric method is based on topologysensitive vector quantization (VQ) for consumers-by-brands-by-attributes data. It map...

In F. Faul and V. Ekroll (2002), we proposed a filter model of perceptual transparency that describes typical color changes caused by optical filters and accurately predicts perceived transparency. Here, we provide a more elaborate analysis of this model: (A) We address the question of how the model parameters can be estimated in a robust way. (B) We show that the parameters of the original mod...

Real-time applications such as games or urban simulations are often highly complex in nature. User expectations grow year by year, along with a concomitant desire for added realism. Due to the performance limitations of computing and rendering hardware, the use of simplification techniques to trade accuracy for performance is therefore of paramount importance. The goal of this thesis is to deve...

A transformational approach to visual perception is presented, in which image structure is encoded in the parameters of those transformations that produce an output maximally symmetric with the current input. Results are presented for a computer program, dubbed SMART (Symmetry Maximizing Array using Random Transformations). SMART consists of a parallel array of independent symmetry detectors. E...

Perceptual life is in constant flux. In normal vision, for example, we continually redirect our gaze within the object. We investigate its various views and visually explore it details. As we do so, we retain in our experience past views, and these together with the present view condition our sense of what to expect in the object as our experience continues to unfold. So, as we move from the re...

In this paper, an improved preprocessor for low-bitrate speech coding employing the perceptual weighting filter is proposed. Speech modification in the proposed approach is performed according to a criterion which makes a compromise between the modification and perceptual weighted quantization errors. For this, the perceptual weighting filter is expressed in terms of a transform domain matrix. ...