BBC R&D Annual Review 2012-2013 - At a glance

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BBC RESEARCH & DEVELOPMENT 2012/13 at a glance

01/ INTRODUCTION

INTRODUCTION

04/ HIGHLIGHTS 08/ 08 SUPER HI-VISION 2012 – an extraordinary year

10/ BIOMECHANICS

BBC R&D has long been preparing for 2012. It is a year which has been the culmination of much of our work over the last decade.

12/ LONDON 2012 –

NEVER MISSING A MOMENT

14/ BBC R&D ACHIEVEMENTS OVER THE YEARS

16/ PUBLICATIONS COVER BBC R&D supported the London Olympics coverage providing additional services, new on-screen developments and working with NHK to cover the event in Super Hi-Vision. INSIDE COVER The Half-RF camera was used live at the Six Nations Rugby at Twickenham.

Matthew Postgate, Controller, Research & Development

In October, the final analogue television transmitter was switched to digital and the UK’s PAL service came to an end. BBC R&D had worked with others in the UK industry over the last decade and before to achieve this milestone. Switchover has provided opportunities for new services to be launched on Freeview, the UK’s Digital Terrestrial Television platform, including HD services carried using the DVB-T2 transmission standard, which BBC R&D was instrumental in defining. It was an exciting and emotional moment, as the UK said farewell to CEEFAX, the BBC information service delivered via analogue television using another BBC R&D invention – Teletext. The BBC delivered ground-breaking coverage of the London Olympics in July and August. BBC R&D worked in many ways to support the events in the planning and in their provision. This included adding extra services, new on-screen developments 01

“PARTNERSHIP HAS BEEN A STRONG THEME FOR BBC R&D DURING THE PAST YEAR”

“ WE CONTINUE TO WORK TOWARDS THE VISION OF A NEW BROADCASTING SYSTEM”

and working with NHK to cover the event in Super Hi-Vision. You can read more about this work in the featured projects later in this review. As part of the Cultural Olympiad, BBC R&D joined forces with Studio Olafur Eliasson to create a participatory art experience installation at Tate Modern called LittleSun, which made available thousands of light graffiti artworks created by the public to anyone with a modern web browser.

innovation hub at London’s Tech City, and continue to work with the UK TSB’s Connected Digital Economy Catapult Centre (CDEC) as it seeks to deliver market innovations to benefit the UK economy.

In the last Annual Review we described the YouView service which is a joint venture between the BBC, ITV, Channel 4, Channel 5, BT, Talk Talk and Arqiva, whose technology has its origin in BBC R&D. YouView launched in July 2012 and provides access to Freeview TV and on demand services via a hybrid set-top box. The department continues to look at technologies to enable future service opportunities across the BBC’s Free-To-Air ventures, including YouView.

Partnerships All of the highlights above were accomplished in partnership with other organisations, and partnership has been a strong theme for BBC R&D throughout the last year across a range of activities. BBC R&D has a long and successful track record of collaborating with academia and industry, and contributing to a wide range of industry standards. BBC R&D engages in partner ships to benefit from complementary skills and experience. By sharing knowledge with other world experts and partner organisations, the outcomes from BBC R&D’s activities can have a greater influence on the 02

global industry, and ultimately improve the experiences of our audience through innovative content, services and functionality. Longer-term commitments with best-of-class partners form a key element of our partnerships strategy. Last year, we launched the Audio Research Partnership with leading UK universities in the field, addressing next generation challenges including the use of object-orientated 3-D sound to deliver an immersive experience. We are now establishing a second research partnership of this type, working with leading UK universities in the fields of user experience, accessibility and interaction. During the past year we have built strong foundations for an exciting new strategic collaboration with University College London (UCL). Jointly, we have scoped a programme of collaborative projects, focussing initially on four priority areas of work: content production; user experience; internet research, and distribution technologies. BBC R&D and UCL will co-locate research teams in a new laboratory at One Euston Square in Central London, to work together on these topics. The BBC’s Connected Studio initiative is also establishing a presence at One Euston Square. Connected Studio is a new approach to delivering innovation in connected content, working with a range of internal and external partners. Connected Studio was piloted during 2012/13 focussing on the BBC’s online products, and is now broadening its remit across BBC output. We have started to engage with the community established at the technology

BBC R&D has maintained its successful track record of working with partners in collaborative projects part-funded by the European Commission and UK agencies such as the TSB and Research Councils, both in new project bids and working with others to shape future research programmes.

Looking Forward Alongside the major landmarks of 2012, we have continued our work towards the vision of a New Broadcasting System characterised by pervasive, immersive, interactive and personal experiences, enabled by rich audience and programme metadata, and IP end-to-end infrastructures, whether fixed or wireless.

2013 to further explore the benefits of these new approaches. High quality metadata is essential to allow both professional users and the public to locate the content they want. BBC R&D recently worked with the BBC World Service to generate metadata for their radio archive, comprising 50,000 programmes from over 45 years. Speech recognition algorithms were used to generate initial metadata, which we then used to enable crowd-sourcing to improve both the data and our algorithms. Approaches such as this will become increasingly significant in the future as the size and complexity of online digital collections continue to grow.

In the field of spectrum, there are debates taking place within the UK and internationally concerning future use of the UHF spectrum used for terrestrial broadcasting. We have been using the results of our research work to inform discussion on the introduction of The first steps in this vision have been taken wireless exempt whitespace devices within with our IP Studio project successfully the UHF bands, and the proposal for the demonstrating key elements for IP-based live World Radio Conference in 2015 to allocate production, including low-latency studio-quality the 700 MHz band to both broadcasting and streaming, flexible monitoring, web-services mobile communications within Europe. We for configuration and control, IP-based are working with colleagues in the BBC to try synchronisation and the use of real-time data. to ensure the best outcome for our audiences. Interest in these ideas is growing within the wider industry and we helped to kick-off An exciting moment is approaching when an industry-wide task force looking at future many of these developments will come standards in these areas, under the auspices together and the New Broadcasting System of the Video Services Forum, the EBU and the will start to move on from being a vision of SMPTE. Our Stagebox IP hardware has been the future and become something tangible. used for live programming on a trial basis and We are pushing ahead to bring this moment we intend to carry out large scale pilots during closer during 2013/14. 03

HIGHLIGHTS OF THE YEAR

Royal Visit to MediaCityUK Controller R&D was presented to Her Majesty the Queen and HRH Prince Philip during her visit to MediaCityUK, and with other members of the department, demonstrated some of BBC R&D’s work on accessibility to them.

Connected Studio

Augmented Reality used for 2012 Olympics Coverage An augmented reality application was featured on the BBC Sport website as part of their coverage of the 2012 London Olympics. Based on biomechanical principles, the application allowed users to visualise their performance alongside professional athletes.

.bbc Domain

Broadcast Environmental Issues

BBC applied to register the .bbc domain.

BBC R&D, in collaboration with the BBC Sustainability Committee, hosted a one day event to understand and explore environmental issues related to broadcast and connected digital media technology. This event included a mix of leading speakers from academia and the media technology and telecommunications industry sectors.

TSB’s Connected Digital Economy Catapult Centre BBC R&D was appointed as a strategic partner for the TSB’s Connected Digital Economy Catapult Centre (CDEC).

Connected Studio initiative was launched and a number of events have led to the best ideas being taken to a pilot stage.

Digital Switchover

UCL Collaboration

Digital Switchover of terrestrial television was completed.

Super Hi-Vision

Nations Variants

A Research Collaboration Partnership for our strategic collaboration was signed with University College London (UCL).

BBC R&D collaborated with NHK and OBS to transmit selected live events and highlights of the London 2012 Olympics, in the Super Hi-Vision (SHV) ultra high definition TV format, to three SHV-equipped theatres in the UK, three in Japan and one in the USA.

Nations variants of BBC One HD were launched on DTT and DSAT.

Extra Video Stream Added for 2012 Olympics and Paralympics Fifth slot on DTT added to provide an extra video stream for the BBC during the Olympics and for Channel 4 during the Paralympics.

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IXManchester BBC hosted the opening of the IXManchester internet peering facility at MediaCityUK. This is an early example of what is planned to be a widespread propagation of low level internet architecture features being distributed round the UK, giving better connectivity and resilience across the country as demand for more and richer IP delivered content grows.

In Session Event The first BBC R&D In Session event was held – a series of regular, curated collections of video interviews with key individuals from the BBC and beyond, that explore important issues that are defining the broadcasters and content distributors of tomorrow. This event focussed on Broadcasting in 2020.

Stagebox Demo at NAB Stagebox was demonstrated at NAB in April where it won an Editor’s Choice InBroadcast Award at NAB, and at IBC in September. It has been licensed and used in productions.

NAB Award RadioTAG won the NAB Technology Innovation Award for BBC R&D, Global Radio and Frontier Silicon.

IBC Award Philip de Nier was given an individual award at IBC in recognition of his notable contributions to the development of the standard for the Advance Media Workflow file format, AMWA AS-11.

NEM Award Best Paper Award at the NEM Summit in Istanbul was won by Oliver Grau and Peter Schuebel from BBC R&D together with Chris Budd from the University of Surrey.

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HIGHLIGHTS OF THE YEAR CONTINUED

New BBC R&D Website

Ultra-high Definition TV

Mood-based Interface for iPlayer RadioVIS

A new BBC R&D website (www.bbc.co.uk/rd) was launched focussing on our research and projects. This included R&D Labs, a new section to showcase the latest prototypes and code on the web from our teams at BBC Research & Development.

BBC R&D constructed an experimental high frame rate display, based on multiple projectors, allowing frame rates up to 360 Hz to be tested. This is being used for advanced studies on ultra high definition TV.

BBC R&D launched an exploratory mood-based interface for iPlayer content so people can search for, find, and access programmes based on the mood of the programme they wish to watch.

Little Sun

New Web Audio API BBC R&D released a recreation of the sound of the BBC Radiophonic Workshop natively in a browser using a new Web Audio API.

First Synchronised Dual-Screen for Mobiles and Tablets

Members of BBC R&D worked with Studio Olafur Eliasson to create an interactive light painting installation, Little Sun, which was exhibited at Tate Modern. It was then used on-air in the BBC’s The ONE Show Christmas programme.

Half-RF HD Radio Camera The ‘Half-RF HD radio camera’, which uses half the spectrum of a conventional radio camera to deliver ‘news’ quality HDTV in a 5 MHz channel, was demonstrated at IBC and then used live on-air for the first time in December, and then at the Six Nations Rugby at Twickenham.

RadioDNS Showcased at IBC At IBC, the RadioDNS project showcased its work enabling RadioDNS on national BBC radio networks, allowing listeners to bookmark live radio and play back via the Web.

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Internet of Things We held an ‘unconference’ in Salford around the Internet of Things (IoT), investigating how everyday interactions with media and entertainment can be amplified using connected objects and devices and how the IoT can help us to tell better stories.

First Object Based Audio Production The first object based audio production, where each audio source is kept separate throughout the chain and mixed in the receiver, was made with Radio Drama, and a stereo version was broadcast on Radio 4 and a 5.1 surround version made available on the website.

The BBC launched its first synchronised dual-screen experience for mobile and tablet devices using the iOS and Android operating systems, allowing viewers to play a game interactively as part of the BBC’s Antiques Roadshow programme. This used technology developed by and transferred from BBC R&D.

The ‘6 Music Live’ season used RadioVIS, which BBC R&D helped invent and develop, to send out pictures of the bands to hybrid DAB/IP radios.

Pan-European HbbTV Hybrid Broadcast Broadband TV Consortium BBC R&D became a member of the pan-European HbbTV Hybrid Broadcast Broadband TV consortium.

Panoramic Camera

BBC R&D made significant contributions to the HEVC standard, the new standard for high efficiency video compression.

BBC R&D installed a panoramic camera at The Proms for one concert. This is the only prototype of its kind – it has a field of view of 180 degrees and is six times the resolution of HD. It was developed as part of the FascinatE European Framework 7 collaborative project in which we are a partner.

Tech City Community

Sibyl Prototype Launched

BBC R&D are engaging with the Tech City community to explore how BBC R&D and Future Media might collaborate with this growing collaborative community.

The prototype Sibyl recommender was launched, which is a stand-alone tool and does not rely upon history or preferences.

MPEG/ITU HEVC Standard

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In July 2012 a crowd of people sat watching the Olympic opening ceremony. They were having a very good time, clapping and cheering throughout the evening with the best seats in the stadium. But they weren’t in the Olympic Stadium, they were four miles away in BBC Broadcasting House. Other groups of people were in Bradford, Glasgow, the USA and Japan. All were watching Super Hi-Vision (SHV).

vehicle which sent the camera pictures to the SHV Production Centre at BBC Television Centre. Audio from NHK’s microphones and from microphones in the Olympic Park was mixed in a separate audio truck into 22.2 channels of immersive surround sound and sent to the SHV Production Centre for further refinement. The connection from the Outside Broadcast vehicles to the SHV Production Centre was via an optical This was the culmination of four years of fibre link carrying the SHV signals uncompressed collaboration with NHK Science and Technology at 24 Gbit/s over eight wavelengths. For security Research Laboratories. The pictures were on an and resilience, a backup fibre link took a different 8m wide screen with a resolution of 7680 x 4320 route across London. pixels, accompanied by a 22.2 multichannel 3-dimensional sound system. The combined effect The SHV Production Centre inside Studio 0 at BBC was to transport the people in the viewing Television Centre consisted of editing, storage, theatre right into the stadium. NHK, OBS and transmission and pre-view facilities. Editing was the BBC collaborated to bring about this realistic initially carried out on a down-converted HD demonstration together with the help of NTT, proxy using an HD editing station. This generated BT, Atos, Janet, Géant2, Internet2 and Sinet4. an EDL (Edit Decision List) that could be used to drive either of the two SHV editing stations There were three SHV cameras in the Olympic where the content package could be further Park, each connected to NHK’s Outside Broadcast refined: one SHV editor was for the UK/USA 08

content package and the other for the Japanese content. The SHV content had 16 times the data of HDTV, so rendering and processing time was slow, even using very powerful workstations. Even so, the NHK production team and a BBC editor were able to edit a new content package overnight ready for showing the next day. There was also a dedicated SHV graphic station used to add captions and make up title sequences. The sound was edited in the control gallery for Studio 0, which had been transformed into a 22.2-channel editing suite with an array of 24 speakers surrounding the audio mixer operator. The speakers were arranged at three heights: floor, mid and ceiling heights, plus one speaker directly overhead. Skilled sound editing was needed to maintain a realistic feeling of telepresence in the short time available for editing. Each audio channel was encoded at 384 kbit/s using AAC and the video encoded in sections using H.264 encoders giving a total of 280 Mbit/s.

The coded signals were transported on a pair of Transport Streams to a pair of TS/IP converters to produce a pair of IP data streams for each theatre at about 350 Mbit/s in total. Two data streams were produced because the total bit rate was too high to be carried on one Transport Stream. Unicast UDP was used to transmit the data to the theatres in the UK with some Forward Error Protection to guard against minor data packet loss. Transmission to the USA and Japan used extra FEC. Multicast was used within Japan. We showed that IP networks can reliably carry high bit rate time critical video and audio, but care is needed in the way the links are set up. At the theatres, the signal was decoded and displayed on 250-inch or 300-inch screens using projectors with 8k resolution and the audio sent to the 22.2-channel audio system. Telepresence had come of age.

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On the morning of Saturday 11th August 2012 BBC diving commentator Leon Taylor talked to Mishal Husain about Tom Daley’s below par performance in the men’s 10m platform diving preliminary round. During the discussion they played videos of two of Daley’s dives with graphics added to describe the size of the splash and the angle of entry. The system producing these measurements came out of the biomechanics project. The analysis was automatic and worked live – the system examined the video frame by frame to extract the diver and splash from the rest of the scene. It then measured the size of the splash and the angle the diver made as he or she entered the water and displayed the results to the viewer.

with our licensee, Red Bee Media, to develop a full product that could be sold around the world. They tested the system at the US Diving Trials earlier in the year and worked with NBC during the Olympics to add the analysis to their diving coverage shown in the United States. It received a large social media response and even gained some celebrity fans.

The motivation behind this work was to help viewers to gain a better understanding of what differentiates a good dive from a bad. In events such as diving where scores are awarded by judges it can sometimes be quite opaque to the typical viewer why one diver might score better than another. With tools such as this we aimed to extract measures of performance that can be directly compared between different After developing a prototype (which inevitably competitors. The simplest part of the dive became known as the ‘splashometer’) we worked where we could do this analysis is on the entry.

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Here the diver should enter the water as straight and as smoothly as possible. If he or she is off vertical then a lower score is given. Similarly, a large splash indicates that the entry to the water has not been smooth and the score drops accordingly. Some viewers were quick to point out that they could already see how big a splash might be, but the key development with this tool – as well as retaining on screen information about the blink-or-you’ll-miss-it dive entry – is to move from a qualitative judgement (‘that was a bad splash’ or ‘he was off vertical there’) towards an automatically generated quantitative judgement (‘that splash scored 75% on the scale’ or ‘he over rotated by 10 degrees’). Once you had a measure for performance you could start to use that information in interesting ways – perhaps using it to find which were the best or worst entries,

or to get a list of all the dives where the diver has over or under rotated? At its most simple it facilitated in comparisons, as in the BBC analysis where it showed the marked contrast between the two Daley dives. Obviously these scores don’t tell the whole story – the entry is only one aspect of the dive and the degree of difficulty makes a huge difference to the final score – that’s why an expert like Leon Taylor is there to explain the complete dive and the nuances that a system like this can’t hope to understand. For most viewers, experts are the best source of insights into an event but this offers them a tool to aid them with their work. We are continuing to work on new developments so in the future we might be able to get measures for other aspects of the dive or apply the same idea to different events.

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The BBC’s pledge for the coverage of the London 2012 Olympic Games was that the audience would ‘never miss a moment’. BBC R&D worked with colleagues from across the BBC, the broadcast platforms and the BBC’s technology partners to turn that vision into reality. BBC Three was extended to run for 24 hours a day and 50 temporary television channels were launched to provide live coverage of virtually all events. 24 simultaneous live HD streams were produced by BBC Sport in Salford and were available to satellite viewers on Sky and Freesat and on Virgin Media cable. SD versions of all 24 streams were created for non-HD viewers. BBC R&D ensured that the picture quality on all platforms matched the BBC’s standards. This required testing of the links between London and Salford and of the emission encoders used for all platforms.

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When the pictures are coded the available bandwidth is shared in a ‘statistical multiplex’ between services depending on the complexity of each frame of video. The scheduling of the events during London 2012 meant that all 24 streams were not always in use. The variation of the number of streams and the differing complexity of each sport risked major variation in picture quality during the Games. BBC R&D tested the bandwidth demands of the various sports and provided guidelines to the schedulers to maintain consistent and acceptable picture quality at all times. Due to limitations in bandwidth it was not possible to put the 24 streams on Freeview, so on this platform an extra Red Button SD service was added in the evenings when CBBC is not on air, and an extra Red Button HD service was deployed. The HD service was also used by Channel 4 to provide extra coverage of the Paralympic Games.

During the Olympics BBC Three was extended into a 24 hour service. This was possible because Parliament was not sitting, which meant that the BBC Parliament service could be removed to release some bandwidth. However, the bandwidth gained by suspension of BBC Parliament was not sufficient to carry a service whose main content is sport. This meant a major reconfiguration of the BBC multiplex which carries all BBC SD and radio services on Freeview was necessary. BBC R&D created the configuration changes, and tested and tuned the picture quality to ensure that it was as good as possible. BBC R&D worked with colleagues in BBC Distribution and Atos to ensure that the configuration was deployed smoothly. With the short gap between the start of Parliament’s summer recess and the London 2012 opening ceremony there was no scope for anything to go wrong.

Coverage of the opening ceremony provided an additional problem on Freeview. The original plan was to broadcast the ceremony on different services at the same time. This would have allowed News to provide their own coverage on the BBC News channel and the opening ceremony to be broadcast with audio description on one of the Red Button services. There was also simultaneous coverage in the Ten O’Clock News which moved to BBC Two for the evening. As the allocation of bandwidth in the statistical multiplex relies on variation in content between services, this would not have resulted in acceptable picture quality, especially as some sections of the opening ceremony were among the most demanding sequences to code that the BBC has ever broadcast. BBC R&D tested a number of different scenarios to determine the best way to fulfil the maximum number of requirements while maintaining acceptable picture quality, and provided advice to allow the London 2012 Steering Group to resolve the situation. 13

BBC R&D ACHIEVEMENTS OVER THE YEARS SOME HIGHLIGHTS OF BBC R&D’S INNOVATION OVER THE YEARS 1930s

1940s

1950s

1960s

Research mainly concerned with short-wave broadcasting, studio developments, developing the Simultaneous Broadcast system, and television:

The start of FM radio; colour television started to look viable; and new magnetic recording techniques started coming into operation:

The start of work on stereo radio; first transatlantic signals (and so need for standards conversion); transistors being used in commercial equipment:

Satellite communications used for the first time in broadcasting; digital techniques transform sound and picture communication:

1930 BBC Research Department formed in April

1945 First VHF/FM transmission tests from Alexandra Palace; Type D disk recorder brought into service

1953 Suppressed-frame telerecording equipment designed, and used at Coronation

1936 First regular high definition television service launches

1962 First transatlantic colour TV link by satellite, using BBC R&D’s slide scanner 1963 NTSC, SECAM and PAL colour demonstrations to EBU and OIRT

1947 Early measurements on the magnetic properties of recording tape

1958 VERA (Vision Electronic Recording Apparatus), first video tape machine used by the BBC

1949 Work starts on smaller, light, higher sensitivity commentator’s microphone, the L2, to replace the L1. Simple colour channel set up.

1959 First transatlantic television transmission 1967 BBC Two transmits first regular colour by BBC R&D’s ‘Cablefilm’; stereophonic tests television service in Europe. using EMI-Percival system; investigations into TV picture storage begin.

1970s

1980s

1990s

2000s

Latest integrated circuits used for signal processing:

Decade of debate: stick with analogue systems, wait for digital, or a hybrid?

Upgrades and enhancements across the board:

1970 Digital line-store standards converter work commences

1982 BBC Microcomputer, from Acorn, released

Start of digital radio and television broadcasting, and launch of BBC Online. Virtual production techniques evolving to provide powerful production tools:

1972 Teletext experiments begin

1982 HDTV studies commence in earnest

1990 First DAB trials

1984 Video watermarking – electronically labelling television pictures – devised

1995 The new Digital Radio service started in September

2001 Speech recognition used as an aid to provide subtitles

1937 First close-talking noise-cancelling ribbon microphone giving broadcast speech, the L1.

1974 BBC R&D demonstrates world’s first digital television recorder 1975 Successful transmission of digital television signals

1985 LF Radio Teleswitching service commences enables the Electricity Supply Industry to optimise power distribution at 1976 First transmissions of digital television over INTELSAT satellite; CARFAX road traffic peak demand times information service principle demonstrated 1986 BBC’s NICAM 728 system for digital stereo sound accepted as British Standard 1978 First digital stereophonic sound broadcast experiments – leading to NICAM stereo sound.

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1987 Join Eureka 147 collaborative group, which developed the DAB standard.

1964 First studies into digital techniques for television

2000 BBC R&D’s handheld digital radio camera used for live broadcasts

2002 Freeview launched

1996 First fully compliant test of the new DVB transmission standard

2006 World’s first end-to-end MIMO broadcast system tested

1997 BBC internet services start

2008 Freesat service launched. Dirac Pro used by BBC to deliver Beijing Olympics in HD

1998 BBC launches digital satellite and terrestrial television services 1999 Digital Text service (replacement for analogue Teletext) successfully launched on DTT.

2009 Freeview HD service launched using DVB-T2 transmission standard 2010 Live delivery of Super-Hi Vision via the internet from our studio to NHK in Japan. 15

PUBLICATIONS WHP201

Affective Classification of Large Scale Broadcast Archives Sam Davies, Denise Bland

WHP231

A Pilot Study for Mood-based Classification of TV Programmes Jana Eggink, Penelope Allen, Denise Bland

WHP204

Techniques for high-performance DAB and DVB-T on-Channel Repeaters Peter Moss, Adam Wiewiorka

WHP232

Large Scale Experiment for Mood-based Classification of TV Programmes Jana Eggink, Penelope Allen, Denise Bland

WHP210

Scene Segmentation using Multiple Metrics M. Pindoria

WHP233

Archive Preservation File Format: DigiBeta System Philip de Nier

WHP216

DVB-T2 Receiver Buffer Model (RBM): Theory & Practice C.R. Nokes, O.P. Haffenden

WHP234

Enhancing Viewer Engagement Using Biomechanical Analysis of Sport Robert Dawes, Bruce Weir, Chris Pike, Paul Golds, Mark Mann, Martin Nicholson

WHP221

Upping the Auntie – A Broadcaster’s Take on Ambisonics Chris Baume, A. Churnside

WHP235

Web delivery of free-viewpoint video of sport events Chris Budd, Oliver Grau, Peter Schübel

WHP222

Measuring PLT Interference on the Mains Aaron Chadha, Ranulph Poole

WHP236

WHP223

Protection of Broadcast Cells with Mixed Mode Reception using the Database Approach Mark Waddell

RE@CT – Immersive production and delivery of interactive 3D content Oliver Grau, Edmond Boyer, Peng Huang, David Knossow, Emilio Maggio, David Schneider

WHP242

Initial Considerations for Protection of PMSE Mark Waddell, Andrew Lillywhite, Edgar Reihl, Karl Brookes, Frank Ernst, Matthias Fehr, Wolfgang Bilz, Brian Copsy

Improving the Experience of Media in the Connected Home with a New Approach to Inter-Device Communication S.J.E. Jolly, M.J. Evans

WHP243

An Experiment in Social TV for Automating Content Sharing via Social Networks Vinoba Vinayagamoorthy, Jerry Kramskoy

WHP224

WHP225

Initial Analysis of TV White Space Availability in the UK Mark Waddell, Shyamalie Thilakawardana

WHP244

WHP226

Measured DVB-T Protection Ratios in the presence of Interference from White space Devices Mark Waddell, Tim Harrold

Improving Screen Content Coding in HEVC by Transform Skipping Marta Mrak, Ji-Zheng Xu

WHP245

Multi-Loop Quality Scalability based on High Efficiency Video Coding Glenn Van Wallendael, J. De Cock, R. Van de Walle, Marta Mrak

WHP227

Construction of a TVWS database from DTT Coverage Data Mark Waddell, Kostas Tsioumparakis, Dave Darlington

WHP246

WHP228

Musical Moods: A Mass Participation Experiment for the Affective Classification of Music Sam Davies, Penelope Allen, Mark Mann, Trevor Cox

Adaptive Transform Skipping for Improved Coding of Motion Compensated Residuals Andrea Gabriellini, Matteo Naccari, Marta Mrak, David Flynn, Glenn Van Wallendael

WHP253

Performance of an Experimental TV White Space Base Station for Mobile and Fixed Broadband Applications Mark Waddell, Shyamalie Thilakawardana, Tim Harrold, Phil Kesby, Steve Cherry

WHP230

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Measurement of Human Sensitivity across the Vertical-Temporal Video Spectrum for Interlacing Filter Specification K.C. Noland

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CONTACT DETAILS For more information about BBC R&D, who we are and what we do – including regular updates on our current projects – please check out our website at www.bbc.co.uk/rd For media enquiries please contact BBC Press Office on 020 8576 1865 or email at [email protected]