Power and Performance Analysis of Motion Estimation Based on Hardware and Software Realizations
IEEE Transactions on Computers
The H.264/MPEG4 advanced video coding standard and its applications
IEEE Communications Magazine
Advances in the scalable amendment of H.264/AVC
IEEE Communications Magazine
Spatial Scalability Within the H.264/AVC Scalable Video Coding Extension
IEEE Transactions on Circuits and Systems for Video Technology
Real-Time System for Adaptive Video Streaming Based on SVC
IEEE Transactions on Circuits and Systems for Video Technology
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Several multimedia applications should run over heterogeneous networks, which are simultaneously composed by devices with different requirements of computational capability and/or communication bandwidth. In order to provide more flexibility modern encoders propose different solutions of scalable video encoding. A scalable video stream is composed by a base layer (responsible by the minimum video requirements) and several enhancement layers (each one enhances the video characteristics). During the last years several specifications of scalable video encoders were introduced. Recently MPEG and ITU-T published SVC standard as the ultimated solution to include scalable funcionality on H.264. However the whole implementation of a SVC encoder demands large computational resources and memory size. The current work presents a detailed analysis of SVC technology and its internal modules. Additionally we propose a refined architecture aiming a tradeoff among low latency time and good encoding efficiency. Comparison results indicate it as a fast and low complexity solution with small video quality loss.