Dragorad Milovanovic

Introduction to Multimedia Communications: Applications, Middleware, Networking

A comprehensive resource on multimedia communications. Covers recent trends and standardization activities in multimedia communications, such as layered structures, underlying theories and the current best design techniques. Describes the convergence of various technologies including communications, broadcasting, information technology, and home electronics, and emerging new communication services and applications resulting from the growth of the Internet and wireless technologies. Please go to www-ee.uta.edu/dip for additional information.

Emerging technologies and sports events

Purpose – The purpose of this paper is to review the development and potential applications of emerging information and communication technologies (ICTs) in sports. The case studies are presented in details: computer system for tracking and visualisation in TV broadcasting and players/teams performance analysis in football. The paper concludes with the authors’ opinion that future implementation of digital technologies, in the first instance, goal-line technologies, to support accurate, practical and reliable decision making in sports is highly needed and represent a basis for further increase in the commercial value of the pre-eminent global sport. Design/methodology/approach – The research utilised an exploratory approach to data gathering due to the fact that the topic is new and data are difficult to collect. The topic is analysed using case study method. Findings – The research found that there is an emerging market to extend the reach of digital technologies adapted for sports industry and sports ev...

Wireless local area networks

Wireless local area networks are becoming more and more important due to increased interest in connection of mobile and portable computers mutually, or to the wired LANs. Wireless LANs come in three types: infrared (diffuse, line-of-sight), microwaves and radio. In order to anticipate future development, this paper systematised the design fundamentals of infrared systems, standardisation activities and characteristics of some representative market products.

Mobile Broadband Networking Based on IEEE 802.20 Standard

In the near feature, mobile applications development will gradually become an interesting research field from the IP structure point of view. In connection with this, a survey of the emerging IEEE 802.20 standard is presented. This paper also provides the technical aspects as well as the system architecture of the IEEE 802.20. The comparison with other similar standards like 802.16e is given, too. An example for invoking this standard in the broadband network is emphasized.

Recent Advances on 3D Video Coding Technology: HEVC Standardization Framework

3D video is emerging media extension of conventional 2D video into third dimension adding depth sensation and resolving 2D viewing ambiguity. Primary usage scenario for 3D video is to support 3D video applications, where 3D depth perception of a visual scene is provided by a 3D display system. Multiview-plus-depth (MVD) is visual representation and coding format which takes 3D geometry information of acquisition system in the form of distance information. Applications require transmission of jointly encoded multiple synchronized video signals that show the same 3D scene from different viewpoints. Advances in multi-camera arrays and display technology enable new applications for 3D video. It is clear that these applications need to be based on well-defined and -documented technical standards. Recent advances and challenges in development of the 3D video formats and associated coding technologies are summarized in this chapter with focus on undergoing MPEG/ITU standardization framework for 3D extensions of HEVC high-efficiency video encoder. Research on coding efficiency improvement and complexity reduction of 3D-HEVC reference encoder implementation are outlined.

High Efficiency Video Coding step forward in video compression improvement

This paper seeks to provide coding efficiency for emerging High Efficient Video Coding (HEVC) standard. We compared some important techical features and characteristics of HEVC and H.264/AVC standard. The idea is to show improvements in HEVC video coding design in objective and subjective way.

UPPER BOUND ON SNR GAIN IN WAVELET TRANSFORM PREDICTIVE-ENTROPY IMAGE CODING

Using the rate-distortion theory approach and assuming the Laplacian probability density function of the quantizer input signal, we propose a function which gives the signal-to-quantizing-noise ratio (SNR) gain in discrete wavelet transform predictive-entropy coding over fullband predictive image coding. The upper bound on SNR gain is determined as a function of the subband number only. The practical SNR performances of realizable wavelet still image coders are compared with their theoretical bounds. The computer simulation results of wavelet based predictive coded test images show that the SNR gain grows faster with the subband number increment than its theoretical upper bounds do.

3D Content Acquisition and Coding

This chapter starts by addressing the impact of the inaccurate camera system alignment on the spatial reconstruction accuracy and stereo perception. An experimental study is described, using a stereoscopic camera setup and its deterministic relations derived by trigonometry, spatial model, and basic stereoscopic formulas. The significance of errors that can occur for possible cameras system setup is analyzed in order to find the appropriate settings and physical constraints of the camera system, which minimize the error. Then, the chapter presents an overview of the compression tools used in current stereoscopic and multiview video encoders. It includes the stereoscopic frame-compatible formats using spatial multiplex in the side-by-side and top-and-bottom fashion; the video plus depth representation, the layered coding approach, and multiview encoding. Furthermore, an extension of multiview video compression for the arbitrary camera arrangements is presented. The current status of MPEG exploration experiments of next-generation video codec technologies is also outlined in the last section. First, the UltraHD compression performance beyond HEVC is presented and second, the recent developments in HDR/WCG format conversion and coding are presented. Finally, the testing procedures and 3D projection formats for 360° video are addressed.

A Technology Vision of the Fifth Generation (5G) Wireless Mobile Networks

5G is now the next generation of wireless communication systems. The general demonstration of one technology vision for fifth generation mobile networks is presented in this work. The vision of 5G technology provides guidance for the definition of requirements, architecture, and other aspects. By expanding the performances limits of mobile networks, it is necessary for the 5G to include a flexible designing which can optimize network utilization with large range of examples for partnership and business models. The 5G should include flexibility to optimize the network usage by design. Modular network functions with the ability of on demand deployment and scaling capabilities need to be included in the architecture. The purpose of this inclusion would be to handle the accommodation of various demands in a cost-effective and agile manner. Direct communication in D2D services is one of the new 5G networks characteristics. Advanced technologies such as massive MIMO and millimeter-wave radio systems have significant impact on design of cellular architecture. It is crucial for 5G technology to maintain a massive traffic volume owing to increase efficiency of radio link and density of cells. Also, it is necessary for the network to be transformed in a cloud architecture, which coordinates radio resources of multi-radio access, and inter-cell interference during network deployment. Research trends in 5G tell us that using an aggregation of technologies, it is possible to realize numerous goals. Our use case study for the perspective period post-2020 shows extremely broad variety of applications and their attributes performance.

MPEG video deployment in digital television: HEVC vs. AVC codec performance study

The coding efficiency of three generations of video coding standards is compared by means of PSNR and subjective testing results. A unified approach is applied to the analysis of designs of MPEG-H HEVC, H.264/MPEG-4 AVC, and H.262/MPEG-2 Video reference implementation. The results of subjective tests for selected HD format sequences indicate that HEVC encoders can achieve equivalent subjective broadcast quality as encoders that conform to AVC when using approximately 50% less bit rate on average. Bitrate reduction based on PSNR and complexity based on encoding/decoding time of HM8 MP vs. AVC HP vs. MPEG-2 MP are tested at bitrates of 2, 3, 4.5, 7 and 10 Mbit/s using the encoding constraints typical for broadcasting applications.