Subjective Quality Assessment for Cloud Gaming

Cloud for Gaming

The typical interaction between cloud provider and customer works as follows: the customer connects to a “cloud marketplace” through a Web interface, and selects the type and amount of the resources she needs (e.g., some virtual servers with given number of CPU cores, memory and disk space). The resources are allocated from a large pool that is physically hosted on some big datacenter managed b...

Environment Perception for Cognitive Cloud Gaming

Subjective Quality Assessment of Underwater Video for Scientific Applications

Underwater video services could be a key application in the better scientific knowledge of the vast oceanic resources in our planet. However, limitations in the capacity of current available technology for underwater networks (UWSNs) raise the question of the feasibility of these services. When transmitting video, the main constraints are the limited bandwidth and the high propagation delays. A...

Comparison of Four Subjective Methods for Image Quality Assessment

To provide a convincing proof that a new method is better than the state-of-the-art, computer graphics projects are often accompanied by user studies, in which a group of observers rank or rate results of several algorithms. Such user studies, known as subjective image quality assessment experiments, can be very time consuming and do not guarantee to produce conclusive results. This paper is in...

Subjective Picture Quality Assessment for Umid/metadata Watermark

Based on the Double Stimulus Continuous Quality Scale (DSCQS) test, described in Rec. ITU-R BT.500-10 the quality and acceptability of a Unique Material Identifier (UMID) watermarking scheme was assessed subjectively. Participants were shown reference and watermarked material and asked to rate the quality and acceptability on a subjective scale. Based on the difference in ratings between source...