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1 History and Future of Broadcast Technologies at NHK Kenji Nagai General Managing Director Executive Director-General of Engineering Japan Broadcasting.

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Presentation on theme: "1 History and Future of Broadcast Technologies at NHK Kenji Nagai General Managing Director Executive Director-General of Engineering Japan Broadcasting."— Presentation transcript:

1 1 History and Future of Broadcast Technologies at NHK Kenji Nagai General Managing Director Executive Director-General of Engineering Japan Broadcasting Corporation December 7, 2009

2 2 Purpose of NHK -The Broadcast Act- Article 7 (Purpose) The purpose of NHK is to conduct the domestic broadcasting of, or to entrust the broadcasting of, enriched and high quality broadcast programs for the public welfare in such a manner that the broadcasting may be received all over Japan, to conduct business necessary for the improvement and development of broadcasting and the reception thereof, and to conduct international broadcasting and NHKs international broadcast programming operations. Article 9 (Business) (5) NHK shall make arrangements to ensure that either medium frequency broadcasting or very high frequency broadcasting and television broadcasting can be received all over Japan. Article 9 (Business) (1) NHK shall conduct the following business for the accomplishment of the purpose mentioned in Article 7: (iii) To conduct research and investigation necessary for the improvement and development of broadcasting and the reception thereof,

3 3 Progress of Broadcast Technology in Japan Experimental HDTV Broadcasting (1 hour/day) HDTV Broadcasting (8 hours/day) Experimental Satellite Broadcasting Television Broadcasting Radio Broadcasting FM Broadcasting Satellite Digital Broadcasting One-Seg Service Terrestrial Digital Broadcasting Digital Sound Broadcasting Start of R&D on Terrestrial Digital BroadcastingStart of R&D on HDTV Start of R&D on Satellite Broadcasting Start of R&D on Super Hi-Vision Foundation of NHK STRL Radio2 Educational Television Broadcasting B-SAT/LMCSS

4 4 R&D on Television System -Past and Future- TV-lines Super Hi-Vision (UHDTV) 1995 1964 Hi-Vision (HDTV) SDTV 2025 Start of Service R&D 20001980 2020 19201960 1954(NTSC) 1967(PAL) 625/525 1080 4320 Baird (UK) Takayanagi (Japan) 3D TV based on Spatial Imaging Technology R&D Start of Service 2000

5 5 Super Hi-Vision System Super Hi-Vision has extremely high spatial resolution, 33 million pixels per frame, and it can provide viewers with stunning images. Various parameters other than spatial resolution is under investigation now. The wide visual angle of 100 degrees provides viewers with an immersive feeling. The purpose of Super Hi-Vision to home is to provide a totally new viewing experience to enjoy wide and extremely high resolution images from any viewing distance. 4320 7680 Viewing distance : 0.75 x Picture height Viewing angle : 100 degrees

6 6 International Collaboration on Super Hi-Vision Received Special Award for the worlds first international transmission of Super Hi-Vision signal Received Technology Innovation Award for development of new media technologies IBC 2008 (Amsterdam)NAB 2009 (Las Vegas)

7 77 3D TV based on Spatial Imaging -Integral Method- 7 Business interests in Stereoscopic 3D television system are increasing in various industries worldwide. However, discrepancy between the convergence point and the focal point causes visual fatigue. Spatial imaging system does not cause visual fatigue nor requires special glasses, because an object is reconstructed as a spatial image (light field). Upper Viewpoint Right Viewpoint Left Viewpoint Lower Viewpoint Display Device Object reconstructed as a spatial image Reconstruction of light Viewer Images appearance changes as the viewers position moves Integral 3D Imaging System


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