Benjamin Belmudez

Learn More
This paper investigates multi-modal aspects of audiovisual quality assessment for interactive communication services. It shows how perceived auditory and visual qualities integrate to an overall audiovisual quality perception in different experimental contexts. Two audiovisual experiments are presented and provide experimental data for the present analysis.(More)
With the advent of audio-visual IP clients, video telephony becomes a realistic option in many application scenarios. In order to guarantee an adequate quality to its users, providers of audio-visual telephony services need to know the impact of the audio and video transmission channel characteristics on perceived Quality of Experience (QoE) in a realistic(More)
The advent of very high resolution optical satellite images has opened, since nearly one decade already, a whole range of new possibilities in application domains like digital cartography, urban planning or land survey. The variety and the amount of information available in these images make nevertheless classical techniques of classification and(More)
In this paper, we will compare several approaches for predicting the quality of entire speech-only or audio-visual telephone calls from subjective judgments or predictions of the quality of individual segments of these calls. The comparison will be done using several databases which have been collected in a test paradigm to simulate conversational(More)
  • 1