Research on wireless video encoding algorithm for underground based on background registration and motion segmentation

2011 ◽  
Author(s):  
Tian Hongxian ◽  
Yang Wei
Keyword(s):  
Motion Segmentation ◽  
Video Encoding ◽  
Wireless Video

Cross-Layer Optimization for Energy-efficient QoS Support of Multimedia Streams

2010 ◽  
pp. 113-134
Author(s):  
Carolina Blanch Perez del Notario ◽  
Sofie Pollin ◽  
Tong Gan ◽  
Claude Desset ◽  
Antoine Dejonghe ◽  
...  
Keyword(s):  
Video Quality ◽  
Rate Distortion ◽  
Low Complexity ◽  
Video Codec ◽  
Video Encoding ◽  
Cross Layer ◽  
Portable Devices ◽  
Wireless Video ◽  
Cross Layer Optimization ◽  
Multimedia Streams

A major limitation for wireless video communication on portable devices is the limited energy budget. For this reason, efficient usage of the scarce energy becomes a critical design constraint, in addition to meeting the Quality of Service constraints related to the video quality. In this chapter the authors focus on minimizing the energy cost of the two main energy consumers in the handheld wireless video device: the video encoding and wireless communication tasks. For this purpose, they present a cross-layer approach that explores the tradeoff between coding and communication energies. They then exploit the Rate-Distortion-Complexity tradeoffs and flexibility of the Scalable Video Codec. The results show that by adapting the codec configuration at runtime to the specific scenarios up to 50% of the total energy can be saved with marginal video quality loss. Moreover, the approach presented is of low complexity and easily deployable in practical systems.

Distortion optimized routing algorithm in wireless video sensor network

2013 ◽  
Vol 32 (5) ◽  
pp. 1232-1235
Author(s):  
Xu CHEN ◽  
Jun SHEN ◽  
Hu LUO ◽  
Xin-hua FU
Keyword(s):  
Sensor Network ◽  
Routing Algorithm ◽  
Wireless Video ◽  
Video Sensor

MARVEL IN VIVO WIRELESS VIDEO SYSTEM

2012 ◽  
Vol 14 (3) ◽  
pp. 329-340 ◽  
Author(s):  
A. Alqassis ◽  
T. Ketterl ◽  
C. Castro ◽  
R. Gitlin ◽  
S. Ross ◽  
...  
Keyword(s):  
Wireless Video ◽  
Video System

A Whole Rate-Distortion Optimize Pronounce Based on Wireless Sensor Network

2013 ◽  
Vol 756-759 ◽  
pp. 890-894 ◽  
Author(s):  
Qing Sheng Yu ◽  
Jian Zhang ◽  
Jin Xiang Peng
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Estimation Method ◽  
Rate Distortion ◽  
Video Encoding ◽  
Mode Decision ◽  
Wireless Sensor ◽  
Block Basis ◽  
Decision Scheme ◽  
Macro Block

Based on the Joint Video Team (JVT) of the ITU-T Video Coding Experts Group VC EG and the IS O/IEC Moving Picture Experts Group MPEG, an RD optimal Macro Block mode decision scheme for Internet error channel streaming is introduced. The scheme employs the luminance Rate Distortion (RD) optimal mode decision scheme so as to take the effects of video encoding distortion and the channel error propagation to get higher error robustness for error transmission. Based on the Wireless Sensor Network, this paper analyzes the data distortion problem when transmitting H.264 coded video stream over error-prone channel. And the authors also have discussed a widely accepted technique that introduces more intra-coded information on macro block basis. Additionally, this paper introduces a simple loss and multiplication factor estimation method, the rate-distortion optimized assessing strategy over the whole situation.

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