Practical distributed video coding in packet lossy channels

Towards practical distributed video coding

Lossy Video Coding

We propose the concept of Spatio-Temporal Model-Assisted Compatible (STMAC) coding and Motion Adaptive Spatio-Temporal Model-Assisted Compatible (MA-STMAC) coding, two techniques that selectively encode areas of diierent importance to the human eye in terms of space and time in moving images. Our motivation is the fact that eye contact and lip synchronization are very important in person-to-per...

A Method to Reduce Effects of Packet Loss in Video Streaming Using Multiple Description Coding

Multiple description (MD) coding has evolved as a promising technique for promoting error resiliency of multimedia system in real-time application programs over error-prone communicational channels. Although multiple description lattice vector quantization (MDCLVQ) is an efficient method for transmitting reliable data in the context of potential error channels, this method doesn’t consider disc...

Application of H.263+ Video Coding Modes in Lossy Packet Network Environments

The quality of real-time audio and video information transmitted via today’s Internet suffers severely from often significant packet losses. While this problem is well understood and solved for existing audio coding schemes, support from the video coding standards themselves is required for video streams. This paper presents the newly introduced error resilience mechanisms built into the second...

Video coding and transport layer techniques for H.264/AVC-based transmission over packet-lossy networks

Standard compliant enhancements of the emerging H.264/AVC coding algorithm for transmission over lossy IP-based networks are described with the error resilience features being presented in greater detail. Standard compliant encoder and decoder enhancements as well as the exploitation of transport layer mechanisms to improve the quality in packet lossy environments are presented. Different schem...