Recent years have witnessed dramatically increased interest and demand for accurate, easy-to-use, and practical image quality assessment (IQA) and video quality assessment (VQA) tools that can be used to evaluate, control, and improve the perceptual quality of multimedia content in a wide variety of practical multimedia signal acquisition, communication, and display systems. There is a vast and increasing proliferation of such content over both wireline and wireless networks. Think of the Internet: Youtube, Facebook, Google Video, Flickr and so on; networked high-definition television (HDTV), Internet Protocol TV (IPTV) and unicast home video-on-demand (Netflix and Hulu, for example); and an explosion of wireless video traffic that is expected to more than double every year over the next five years [1].