نتایج جستجو برای: layer coding
تعداد نتایج: 405371 فیلتر نتایج به سال:
H.264/AVC is an essential component in emerging wireless video applications, thanks to its excellent compression efficiency and network-friendly design. However, a video coding standard itself is only a single component within a complex system. Its effectiveness strongly depends on the appropriate configuration of encoders, decoders, as well as transport and network features. The applicability ...
In this paper, we consider the problem of scheduling real time services over time-varying wireless links in broadband wireless networks where an Adaptive Modulation and Coding (AMC) scheme is applied in the physical layer in order to decrease the packet error rate. It is well known that a properly chosen modulation and coding scheme can increase error robustness in the physical layer. However, ...
The purpose of this research was to develop a model for university–community engagement based on social responsibility approach in agricultural higher education. Causal layered analysis was used to draw different layers of university–community engagement model. A qualitative phenomenological method was used to extract indicators for each layer. The Nvivo10 QSR software was used for data analys...
This research was supported by a grant from the Indiana 21 Century Research and Technology Fund. Address all correspondence to P. Salama at [email protected] or E. J. Delp at [email protected]. ABSTRACT In this paper, we focus on the leaky prediction based scalable coding (LPSC) structure and present a general framework for LPSC. We demonstrate the similarity between LPSC and a motion compen...
© 2013 ETRI Journal, Volume 35, Number 6, December 2013 http://dx.doi.org/10.4218/etrij.13.2013.0040 This paper describes the scalable extension of High Efficiency Video Coding (HEVC) to provide flexible highquality digital video content services. The proposed scalable codec is designed on multi-loop decoding architecture to support inter-layer sample prediction and inter-layer motion parameter...
Scalability is one of the essential requirements in the compression of visual data for present-day multimedia communications and storage. The basic building block for providing the spatial scalability in the scalable video coding (SVC) standard is the well-known Laplacian pyramid (LP). An LP achieves themultiscale representation of the video as a base-layer signal at lower resolution together w...
This paper extends the work on cross-layer design which combines adaptive modulation and coding at the physical layer and hybrid automatic repeat request protocol at the data link layer. By contrast with previous works on this topic, the present development and the performance analysis as well, is based on rate compatible punctured turbo codes. Rate compatibility provides incremental redundancy...
In this paper, the intra residual macroblock produced by H.264 is investigated. Based on its characteristics, an efficient two-layer coding scheme for the intra residual macroblock is developed. The rate-distortion performance for the proposed coding scheme is evaluated. Experimental results show that our algorithm can achieve better coding performance.
It has been demonstrated recently that 3-D wavelet coding with motion-compensated temporal filtering (MCTF) provides a wide range of spatio-temporal-SNR scalability with state-of-the-art coding performance. However, the coding system is very different from the already standardized motion-compensated DCT (MC-DCT) video coders such as MPEG-2, MPEG-4, or H.26L. Nonetheless, the market acceptance o...
In the Scalable Video Coding (SVC) standard, a multi-layer based structure is utilised to support scalability. However in the latest Joint Scalable Video Model (JSVM) reference software, the rate control algorithm is implemented only in the base layer, and the enhancement layers are not equipped with a rate control scheme. In this work, a novel rate control algorithm is proposed for when inter-...
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