Perceptual evaluation of human animation timewarping

This paper presents an empirical method for assessing music similarity on a set of stimuli using triadic comparisons in a balanced incomplete block design. We first evaluated the consistency of subjects in their rankings and then the concordance across subjects. The concordance was also evaluated

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Since the world premiere of the first perceptual audio quality analyzer due to the MP3 development of Fraunhofer, twenty years have now passed. In 2010, OPTI-COM is looking forward to celebrating its 15th anniversary. For two decades, the Perceptual Quality Experts from Germany have been trying

or colour halos. In this paper we conduct a series of the perceptual experiments to mea-sure the degradation of the image quality after demosaic-ing. We evaluate six demosaicing techniques that differ in a concept of used approximations. Perceptuallly visible artefacts are searched for a native image size

With many visual speech animation techniques now available, there is a clear need for systematic perceptual evaluation schemes. We describe here our scheme and its application to a new video-realistic (potentially indistinguishable from real recorded video) visual-speech animation system, called

, we develop a perceptual test to measure subtle phonetic differences between speech units. We use the perceptual data to evaluate several popular distance measures. The results show that distance measures that use frequency warping perform better than those that do not, and minimal extra advantage

This thesis focuses on tone mapping operators and the perceptual differences between them when the tone mapped images are compared with their corresponding real-world views. To achieve this goal, two tone reproductions were implemented within the scope of this thesis. High dynamic range (HDR

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and denoised im-ages created by both classical and state-of-the-art denoising algorithms. We then carry out a subjective experiment using a multi-stimulus ranking approach to evaluate and compare the quality of the denoised images. Data analysis shows that there are both considerable agreement and significant