Media Informatics Group, University of Munich, Germany; Distributed Systems Group, ETH Zurich, Switzerland; TecO, University of Karlsruhe, Germany; Perceptual Computing and Computer Vision Group, ETH Zurich, Switzerland; Computing Department, Lancaster University, UK [email protected], [email protected], [email protected], [email protected], [email protected]

One of the primary challenges confronting designers of mobile computing devices is the issue of efficient text entry. One potential solution is to group multiple letters onto single keys, similar to the T9 keyboard currently used on telephones. Two experiments examined the effects of perceptual grouping on soft keyboard transcription rates. Results from Experiment 1 showed significantly slower ...

A number of studies have shown that a pair of perceptual eeective formants can be deened to capture most of the phonetic information present in vowels. Various methods of computing the eeective formant values were proposed. However, many of them depend on the accuracy of conventional formant estimation. In this work, we study methods of automatically estimating perceptual eeective formants with...

This paper proposes a new approach for computing perceptual distortion for visual signal in order to provide an objective measure for perceptual quality at low bit rate MPEG-4 and H.26L coding in typically mobile multimedia communications. The regions with three major perceptually disturbing artefacts, namely, damaged edge, blockiness and ringing, are detected as the basis of assessment. The co...

A scheme is proposed to synthesize visual textures with positional jitter and/or orientation randomness that are widely used in controlled psychophysical experiments for modelling (human) preattentive vision. The scheme, though simple, has been found to be quite effective for that purpose. Spectral properties of synthesized textures are then analyzed with the goal of creating a framework for co...

This study was an attempt to shed light on the relationship between perceptual learning styles and perceptual teaching styles of Iranian EFL learners and teachers. It further investigated the relationship between perceptual learning style and the age, gender, and proficiency of Iranian EFL learners. A total of 112 students and 23 teachers participated in this study. The data was collected using...

Assessing the perceptual quality of videos is critical for monitoring and optimizing video processing pipelines. In this paper, we focus on predicting the perceptual quality of videos distorted by noise. Existing video quality metrics are tuned for“white”, i.e., spatially uncorrelated noise. However, white noise is very rare in real videos. Based on our analysis of the noise correlation pattern...

Several studies have shown that the amplitude of the first rahmonic peak (R1) in the cepstrum is an indicator of hoarse voice quality. The cepstrum is obtained by taking the inverse Fourier Transform of the log-magnitude spectrum. In the present study, a number of spectral analysis processing steps are implemented, including period-synchronous and periodasynchronous analysis, as well as harmoni...

this study was an attempt to shed light on the relationship between perceptual learning styles and perceptual teaching styles of iranian efl learners and teachers. it further investigated the relationship between perceptual learning style and the age, gender, and proficiency of iranian efl learners. a total of 112 students and 23 teachers participated in this study. the data was collected using...