Peer-to-Peer Streaming of Layered Video: Efficiency, Fairness and Incentive
Recent advances in scalable video coding (SVC) make it possible for users to receive the same video with different qualities. To adopt SVC in P2P streaming, two key design questions need to be answered: 1) layer subscription: how many layers each peer ...
Methodology for Energy-Flexibility Space Exploration and Mapping of Multimedia Applications to Single-Processor Platform Styles
Embedded multimedia devices are now a common element of our environment, such as mp3 players, handheld devices, and so on. Choosing the right main processing element is a key issue for the success of these devices, and their consumption, performance, ...
A Cross-Layer Design for the Performance Improvement of Real-Time Video Transmission of Secondary Users Over Cognitive Radio Networks
Cognitive radio (CR) has been proposed as a promising solution to improve connectivity, self-adaptability, and efficiency of spectrum usage. When used in video applications, user-perceived video quality experienced by secondary users is a very important ...
Witsenhausen–Wyner Video Coding
Inspired by Witsenhausen and Wyner's 1980 (now expired) patent on “interframe coder for video signals,” this paper presents a Witsenhausen-Wyner video codec, where the motion-compensated previously decoded video frame is used at the decoder as side ...
Lossless Data Embedding Using Generalized Statistical Quantity Histogram
Histogram-based lossless data embedding (LDE) has been recognized as an effective and efficient way for copyright protection of multimedia. Recently, a LDE method using the statistical quantity histogram has achieved good performance, which utilizes the ...
A Self-Configurable Systolic Architecture for Face Recognition System Based on Principal Component Neural Network
An efficient self-configurable systolic architecture is proposed in this paper for very large scale integration implementation of a face recognition system. The proposed system applies principal component neural network (PCNN) with generalized Hebbian ...
Scalable Video Compression Framework With Adaptive Orientational Multiresolution Transform and Nonuniform Directional Filterbank Design
Although wavelet-based scalable video coding becomes the state-of-the-art video compression engine for its adaptability to heterogeneous networks and clients, a large number of attempts have been made to integrate local directionality onto discrete ...
Reconstruction for Distributed Video Coding: A Context-Adaptive Markov Random Field Approach
Within the existing reconstruction process of distributed video coding (DVC), there are two major approaches: the maximum probability reconstruction and the minimum mean square error (MMSE) reconstruction. Both of them assume that each node, a pixel in ...
Priority Belief Propagation-Based Inpainting Prediction With Tensor Voting Projected Structure in Video Compression
This paper presents a new video compression framework over H.264/AVC scheme that integrates our proposed structured priority belief propagation (BP)-based inpainting prediction (IP) to exploit the intrinsic nonlocal and geometric regularity in video ...
Robust Video Data Hiding Using Forbidden Zone Data Hiding and Selective Embedding
Video data hiding is still an important research topic due to the design complexities involved. We propose a new video data hiding method that makes use of erasure correction capability of repeat accumulate codes and superiority of forbidden zone data ...
Rate-Distortion Optimized Pixel-Based Motion Vector Concatenation for Reference Picture Selection
Reference picture selection (RPS) is a powerful error-control technique for video streaming. Previously, two fast block-based motion vector concatenation (MVC) algorithms were proposed for video transcoding based on forward dominant vector selection (...
Rate Control Optimization for Temporal-Layer Scalable Video Coding
A novel frame-level rate control (RC) algorithm is presented in this paper for temporal scalability of scalable video coding. First, by introducing a linear quality dependency model, the quality dependency between a coding frame and its references is ...
Temporal Video Segmentation to Scenes Using High-Level Audiovisual Features
In this paper, a novel approach to video temporal decomposition into semantic units, termed scenes, is presented. In contrast to previous temporal segmentation approaches that employ mostly low-level visual or audiovisual features, we introduce a ...