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Punchihewa A.,ABU Technology
ABU Technical Review | Year: 2015

This paper reviews some high dynamic range (HDR) image sensing techniques and briefly, tone compression. It also outlines approaches for imaging which encompass sensing and tone compression based on pixel based high dynamic range image capture using adaptive integration. Luminance domain processing can be explored to design novel system-on-chip (SOC) architecture. Researchers are working on an imaging system for special applications that need to take care of both adaptive HDR sensing and programmable tone compression. Researchers explore the possibility of performing certain signal processing in the sensor integration itself and/or using a FPGA as immediate peripheral circuit operate in a pipeline and parallel process scheme on photo diode output. Source


Punchihewa A.,ABU Technology
ABU Technical Review | Year: 2014

Digital access should not create an information divide by presenting barriers to the access to information. Spectrum allocation impacts public access to the essential media platforms, such as TV, radio, and the Internet, creating an information divide. Public broadcasters may ensure that their audience has access to free-to-air (FTA) TV. Generally, frequency spectrum is managed by countries under regulation agreed by all member countries of the International Telecommunication Union (ITU). The ITU handles the spectrum allocation by assigning each country to one of three regions. There are three main functions for a spectrum regulator, allocation, assignment, and allotment of frequencies, planning for future services, and enabling an environment for legitimate frequency users. In Asia and Europe, broadcasters are planning to introduce UHDTV-1 and UHDTV-2 terrestrial services. Source


Punchihewa A.,ABU Technology
ABU Technical Review | Year: 2015

Over the years, Over-the-top (OTT) has evolved from delivery of video on demand (VOD) content to users upon request, to a broader media content provider/service, while traditional broadcasting mechanisms such as terrestrial, cable and satellite were used mainly to deliver linear radio and video contents to many users at the same time. Adding live channels and advanced "place and time shifting" capabilities of live TV to an OTT solution is a significant step towards a comprehensive OTT radio or television service. The new Hybrid radio and television experience allows the user to have a single source for all types of media content to be accessed on most of the devices. Source


Punchihewa A.,ABU Technology | Takechi M.,NHK Japan Broadcasting Corporation | Lee D.J.,Technical Research Institute | Sanei H.,NHK
ABU Technical Review | Year: 2015

The article addresses Integrated Broadcast-Broadband (IBB) Interactive multimedia services that are integrated with traditional broadcasting. The increasing penetration of the Internet and the increasing performance of broadband have stimulated interactive multimedia services that are not integrated with traditional broadcasting, known as Over-the-Top (OTT) services. IBB services give broadcasters the opportunity to establish a direct relationship with each member of the audience so that the entire service offering can be used to reduce churn by building brand loyalty. Source


Nadeem A.,ABU Technology | Lin K.Z.,ABU Technology
ABU Technical Review | Year: 2012

The Ministry of Communication and Information Technology of Indonesia (K0MINFO), Radio Republik Indonesia (RRI), WorIdDMB, and the Asia-Pacific Broadcasting ABU Union (ABU) organized the DAB+ Digital Radio Technology Showcase event in Jakarta from September 24-27, 2012. The 4-day 'DAB+ Technology Workshop and Transmission Demonstration' event comprised of a two day technology workshop, which was followed by a two day transmission trial and field measurement exercise in and around the city of Jakarta. The workshop provided participants with the latest information on all aspects of planning and implementation of digital radio and its transmission technology, addressing its enhanced features and efficiencies, as compared with analog FM broadcast. DAB+ was one of the digital radio standards that were being considered in many European countries and in the Asia-Pacific, including Australia and Hong Kong who had officially adopted the standard. Source

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