This paper addresses the issue of cell loss and its consequent effect on video quality in a packet video system, and examines possible compensative measures. In the system's enconder, adaptive spectral separation is used to develop a two-layer coding scheme comprising a high priority layer to carry essential video data and a low priority layer with data to enhance the video image. A two-step er...

Based on the classical fractal video compression method, an improved monocular fractal compression method is proposed which includes using more effective macroblock partition scheme instead of classical quadtree partition scheme; using improved fast motion estimation to increase the calculation speed; using homo-I-frame like in H.264, etc. The monocular codec uses the motion compensated predict...

Wireless video broadcast/multicast and mobile video communication pose a challenge to the conventional video transmission strategy (which applies separate digital source coding and digital channel coding in a point-to-point communication system), and therefore cooperative communication has been proposed to improve the received quality of the receivers with bad channels and the robustness to fad...

An adaptive motion-compensated video coding scheme, that is based on structural video component segmentation and coding complexity analysis, is proposed in this paper. The bits are allocated more efficiently among different frame types and variant video components. A novel scene cut detection algorithm is proposed for partitioning the input video sequences into a set of shots and each shot may ...

The emerging international standard of high efficiency video coding based 3D video coding (3D-HEVC) is a successor to multiview video coding (MVC). In 3D-HEVC depth intracoding, depth modeling mode (DMM) and high efficiency video coding (HEVC) intraprediction mode are both employed to select the best coding mode for each coding unit (CU). This technique achieves the highest possible coding effi...

Abstract: The quality of video streams transmitted via today’s Internet suffers severely from significant packet losses. To reduce the quality degradation, we need the error-resilient coding method. Video Redundancy Coding is an efficient error resilience mechanisms built in the H.263+. In this paper, we propose an Adaptive Video Redundancy Coding using network status and scene characteristics....

One of the top tasks for video streaming, video surveillance, video conferencing and video broadcasting is a low bit rate and real-time video coding. The most popular low bit rate video compression approach is based on the H.264/AVC standard [1]. This standard provides high compression efficiency due to hybrid video coding which includes intra-frame prediction, variable-size block motion estima...

Video streaming over the Internet has gained popularity during the recent years which is mainly the result of the introduction of videoconferencing and videotelephony. These in turn have made it possible to bring to life many applications such as transmitting video over the Internet and over telephone lines, surveillance and monitoring, telemedicine (medical consultation and diagnosis at a dist...