Participate in adaptive video streaming test
We will start an experiment with test persons to investigate video streaming visual quality. In this experiment we will look at the visual experience of some disturbances that could occur in adaptive streaming scenarios for video transmission.
As a test person you will look at video sequences, obtained from commercial movies and sport events, and rate them on different scales.
You need to have good visual acuity and color vision. If you are younger than 18 years of age you need the approval of you parents to participate in these kinds of experiments.
The test is done for this time. Thank you for your help!
The growth of video over mobile networks is exponential nowadays. The various instances of packet video have been thought of as demanding applications that would never work satisfactorily over best-effort IP networks. However, the recent broadband access technology, adaptive streaming, could overcome the problem by producing several instances of live or on-demand source file and making them available to various platforms such as living room smart TV or computers and mobile devices depending upon the delivery bandwidth and CPU processing power. By monitoring CPU utilization and/or buffer status, adaptive streaming technologies can change streams when necessary to ensure continuous playback or to improve the experience. Several video players, such as Microsoft’s Smooth Streaming, Adobe’s Dynamic Streaming, and Apple’s HTTP Live Streaming, as well as the players used by Netflix use this approach. Recently, an ISO standard for dynamic adaptive streaming over HTTP, MPEG DASH, is also provided which could potentially supersede the proprietary of mentioned approaches.
By increasing the number of multimedia services working based on these technologies, the service providers have become interested in the quality of experience evaluation.