Essays about: "mean opinion score"

Showing result 21 - 25 of 40 essays containing the words mean opinion score.

1. 21. PERFORMANCE EVALUATION OF VIDEO QUALITY ASSESSMENT METHODS BASED ON FRAME FREEZING

   University essay from Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

   Author : Muhammad Arslan; Usman ; [2014]
   Keywords : Absolute Category Rating; Frame Freezing; Mean Opinion Score; No Reference Method NR ; Subjective Testing; Temporal Information.;

   Abstract : A Digital Video Communication System consists of a video encoder, a channel through which the video is transmitted and finally a video decoder. These three phases can cause different kinds of impairments or degradations in the quality of a video. READ MORE

3. 22. Effect of Codec Performance on Video QoE for videos encoded with Xvid, H.264 and WebM/VP8

   University essay from Blekinge Tekniska Högskola/Institutionen för kommunikationssystem

   Author : Raj Kiran Addu; Vinod Kumar Potuvardanam; [2014]
   Keywords : Quality of Experience; SSIM; H.264; WebM VP8; Xvid;

   Abstract : In recent years, there has been a significant growth in multimedia services such as mobile video streaming, Video-on-Demand and video conferencing. This has led to the development of various video coding techniques, aiming to deliver high quality video while using available bandwidth efficiently. READ MORE

4. 23. A Comparison of RTMP and HTTP Protocols with respect to Packet Loss and Delay Variation based on QoE

   University essay from Blekinge Tekniska Högskola/Sektionen för datavetenskap och kommunikation

   Author : Ramesh Goud Guniganti; Srikanth Ankam; [2013]
   Keywords : HTTP; Mean Opinion Score; Quality of Experience; RTMP; Subjective Assessment; Network Emulator.;

   Abstract : In recent year’s multimedia services like Video-on-Demand (VoD) and mobile video streaming, videos for e-learning, video conferencing are growing predominantly, and the user’s expectations towards the quality video are increasing as the technology is developing. There are different video streaming protocols are used for streaming videos from servers to the client. READ MORE

5. 24. Methods and algorithms for quality and performance evaluation of audio conferencing systems

   University essay from Institutionen för fysik

   Author : Maria Palmqvist; [2013]
   Keywords : AEC; loudspeaker performance; audio conferencing systems; PESQ; MOS; THD; ERLE; CSD;

   Abstract : In an audio conferencing system the sound from the loudspeaker is undesirably picked up by the microphone. This introduces echoes to the system. To remove the echoes an acoustic echo canceller can be built with an adaptive filter. READ MORE

6. 25. MOBILE PHONE ACOUSTICS : PERFORMANCE EVALUATION OF SPECTRAL SUBTRACTION AND ELKO’S ALGORITHM USING SPEECH QUALITY METRICS

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Sai Kiran Chittajallu; [2013]
   Keywords : Acoustics; PESQ; ELKOS; Spectral Subtraction; WOLA; Reverberation;

   Abstract : In recent years a great deal of effort has been expended to develop methods that determine the quality of speech through the use of comparative algorithms. These methods are designed to calculate an index value of quality that correlates to a mean opinion score given by human subjects in evaluation sessions. READ MORE