Abstract: A first component image quality metric included in a plurality of eligible component image quality metrics is computed. A reference version of a video frame is decomposed into a first set of decomposed levels in different scales. A distorted version is decomposed into a second set of decomposed levels in different scales. Detail loss is determined based on the first set and second set of decomposed levels in different scales. A second component image quality metric included in the eligible component image quality metrics is computed. The first set and second set of decomposed levels in different scales are reused for computing the second component image quality metric. Natural scene statistics are evaluated based on the first set and second set of decomposed levels in different scales. A video quality metric for the distorted version is determined based on at least a portion of the eligible component image quality metrics.

Abstract: A video to be encoded to a plurality of different target encodings for bandwidth adaptive serving is received. The video is encoded into a plurality of different candidate encodings using different candidate encoding parameters. A quality metric is determined for each of the plurality of different candidate encodings. One or more different target quality metrics are selected for a first portion of the different target encodings based at least in part on one or more specified constraints for one or more target devices. One or more different target quality metrics are selected for a second portion of the different target encodings based at least in part on the determined quality metrics of the different candidate encodings. Based at least in part on the selected different target quality metrics for the first portion and the second portion, the plurality of different target encodings of the video is generated.

Abstract: The disclosed computer-implemented method may include a process for monitoring and improving end-to-end video quality based on scaled and/or interpolated perceptual quality scores across various video views. The method may also include a process for improving search experience for user expectations. Additionally, the method may include a process for providing hardware virtualization and simulation for server hosting. Furthermore, the method may include a process for filtering network traffic in a hosting environment. The method may additionally include a process for testing applications in a hosting environment. The method may further include a process for supporting multi-touch applications. The method may also include a process for optimized graphics rendering. Various other related methods and systems are also disclosed.