Fine Granular Scalability Video over Wireless Communication Networks
نویسندگان
چکیده
In this paper, we address the problem of joint sourcechannel coding (JSCC) for fine-granular-scalability (FGS) video over wireless packet-erasure channels in two aspects. First, we study the impact of JSCC applying equal error protection (EEP) to bit-planes of the enhancement-layer and we compare optimal protection resulted from the scheme with fixed protection. Second, we present JSCC scheme using unequal error protection (UEP) between the bit-planes of the enhancement-layer, in which unequal amounts of protection are optimally allocated to progressive streaming to provide a graceful degradation of video quality as packet loss rate varies. The first scheme is easy and simple to be implemented and the second one achieves better performance. Theoretical analysis and experimental results both demonstrate the advantages of the proposed algorithms.
منابع مشابه
Adaptive motion-compensation fine-granular-scalability (AMC-FGS) for wireless video
Transmission of video over wireless and mobile networks requires a scalable solution that is capable of adapting to the varying channel conditions in real-time (bit-rate scalability). Furthermore, video content needs to be coded in a scalable fashion to match the capabilities of a variety of devices (complexity scalability). These two properties—bit rate and complexity scalability—provide the f...
متن کاملThe Feedback Based Mechanism for Video Streaming Over Multipath Ad Hoc Networks
Ad hoc networks are multi-hop wireless networks without a pre-installed infrastructure. Such networks are widely used in military applications and in emergency situations as they permit the establishment of a communication network at very short notice with a very low cost. Video is very sensitive for packet loss and wireless ad-hoc networks are error prone due to node mobility and weak links. H...
متن کاملA New Unequal Error Protection Technique Based on the Mutual Information of the MPEG-4 Video Frames over Wireless Networks
The performance of video transmission over wireless channels is limited by the channel noise. Thus many error resilience tools have been incorporated into the MPEG-4 video compression method. In addition to these tools, the unequal error protection (UEP) technique has been proposed to protect the different parts in an MPEG-4 video packet with different channel coding rates based on the rate...
متن کاملTarget Tracking with Unknown Maneuvers Using Adaptive Parameter Estimation in Wireless Sensor Networks
Abstract- Tracking a target which is sensed by a collection of randomly deployed, limited-capacity, and short-ranged sensors is a tricky problem and, yet applicable to the empirical world. In this paper, this challenge has been addressed a by introducing a nested algorithm to track a maneuvering target entering the sensor field. In the proposed nested algorithm, different modules are to fulfill...
متن کاملNetwork and Device Driven Motion-compensated Scalable Video for Wireless Systems
Transmission of video over wireless and mobile networks requires a scalable solution that is capable of adapting to the varying channel conditions in real-time (bit-rate scalability). Furthermore, video content needs to be coded in a scalable fashion to match the capabilities of a variety of devices (complexity scalability). These two properties – bit-rate and complexity scalability – provide t...
متن کامل