H.264/AVC in wireless environments

H.264/AVC for Wireless Applications

Video transmission in wireless environments is a challenging task calling for high compression efficiency as well as a network friendly design. These have been major goals of the H.264/AVC standardization effort addressing “conversational” (i.e., video telephony) and “non-conversational” (i.e., storage, broadcast, or streaming) applications. The video compression performance of the H.264/AVC Vi...

A H.264 Robust Decoder for Wireless Environments

Video transmission on unreliable networks can produce artifacts on received images due to either the loss of a part of the bitstream or its corruption. In this paper we describe an innovative algorithm, based on temporal correlation between frames and scene change detection, that greatly improves the objective and subjective quality of incorrectly H.264/AVC decoded images, with a computational ...

Efficient redundant frames encoding algorithm for streaming video over error prone wireless channels

The H.264/AVC coding standard only specifies the decoding process and the bitstream syntax to allow considerable flexibility for the designers to optimize the encoder for coding performance improvement and complexity reduction. This paper proposes the use of redundant Predicted (Marionette) frames to prevent temporal error propagation in H.264/AVC streaming over error prone wireless channels. C...

A novel Trellis Coded Modulation scheme for robust transmission of Prioritized H.264/AVC Video employing Alamouti’s code for wireless MIMO systems

QoE based comparison of H.264/AVC and WebM/VP8 in error-prone wireless networkQoE based comparison of H.264/AVC and WebM/VP8 in error-prone wireless network

Quality of Experience (QoE) management is a prime topic of research community nowadays as video streaming, online gaming and security applications are completely reliant on the network service quality. Moreover, there are no standard models to map Quality of Service (QoS) into QoE. HTTP media streaming is primarily used for such applications due to its coherence with the Internet and simplified...