디지털 홀로그래픽 정보의 스케일러블 전송을 위한 부호화 기법
A New Coding Technique for Scalable Transmission of Digital Holographic Information
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초록
3D 산업이 발달하고 3D와 관련된 콘텐츠 및 장비가 점차 보편화 되면서 사람들은 3D 다음 세대의 미디어 및 서비스에 대한 관심을 보이고 있다. 많은 사람들은 그 강력한 후보자로 디지털 홀로그램을 생각하고 있다. 홀로그램 기술은 일반적인 비디오 시스템들과 마찬가지로 획득(혹은 생성), 처리, 그리고 재생으로 나누어질 수 있다. 본 논문에서는 다양한 재생 환경에 대해 적응적으로 홀로그램 비디오를 서비스하기 위한 처리 기술에 대해서 논의하고 새로운 알고리즘을 제안한다. 제안하는 알고리즘은 홀로그램의 생성 및 획득 방식에 따라서 해상도 스케일러블 코딩 방식과 광원 기반의 SNR 스케일러블 코딩 방식으로 구성된다. 1,024×1,024 크기의 홀로그램에 대해서 홀로그램 기반의 해상도 스케일러블 코딩은 1:1에서 100:1의 압축율을 가지면서 N 단계의 적응적인 서비스가 가능하도록 하였다. 광원기반의 SNR 스케일러블 코딩은 1:1에서 100:1의 압축율을 가지면서 M 단계의 서비스가 가능하도록 하였다. 제안한방식을 통해서 다양한 해상도를 갖는 디스플레이, 수신단의 연산 능력, 그리고 네트워크의 대역폭에 따라 적응적으로홀로그래픽 비디오를 서비스할 수 있다는 것을 보였다.
Abstract
People have been interested in the next generation media and service over 3D by development of 3D industry and generalization of 3D-related content and equipment in recent year. Many researchers predict that a strong candidate is digital hologram. Holographic technology is classified to capture(or generation), processing, and display(or reconstruction). This paper discusses scalable video service technologies for holography in various decoding environment and proposes a new algorithm for them. The proposed algorithm consists of the hologram-based scalable coding and the light source-based SNR scalable coding according to the method of capturing or generating a hologram. The former encodes a hologram with the compression ratio from 1:1 to 100:1, which can partially transmit it with N steps. The latter also encodes a hologram with the compression ratio from 1:1 to 100:1, which can partially transmit it with M steps. Through the proposed method a digital hologram can be scalably serviced according to display equipments with various resolutions, computing power of decoding part, and network bandwidth.
참고문헌 (19)
- B. Javidi, "Three Dimensional Television, Video, and Display Technologies" (2002), Springer Verlag
- P. Hariharan, "Basics of Holography" (2002), Cambridge University Press
- F. Wu, "A framework for efficient progressive fine granularity scalable video coding", IEEE Trans. Circuits Syst. Video Technol, 11(3), pp.332~344 (2001)
- J. Reichel, "Scalable Video Coding - Working Draft 1", Doc. JVT-N020, ~ (2005)
- Young-Ho Seo, "3D scanning-based compression technique for digital hologram video", Signal Processing: Image Communication, 22(2), pp.144~156 (2007), Elsevier BV
- H. Yoshikawa, "Information reduction by limited resolution for electro -holographic display", editor SPIE Proc. Vol. 1914 Practical Holography VII, pp.1914~1930 (1993)
- H. Yoshikawa, "Image Scaling for electro-holographic display", SPIE Proc. Practical Holography Ⅷ, 2176, pp.12~22 (1994)
- H. Yoshikawa, "Digital holographic signal processing", Proc. TAO First International Symposium on Three Dimensional Image Communication Technologies (1993)
- H. Yoshikawa, "Holographic image compression by motion picture coding", SPIE Proc. Practical Holography X, 2652, pp.2652~ (1996)
- T. J. Naughton, "Compression of Encrypted Three-dimensional Objects using Digital Holography", Optical Engineering, 43(10), pp.2233~2238 (2004)
- T. J. Naughton, "Compression of Digital Holograms for Three- Dimensional Object Reconstruction and Recognition", Applied Optics, 41(20), pp.4124~4132 (2002)
- M. Liebling, "Fresnelets: New multiresolution wavelet bases for digital holography", IEEE Trans. Image Process, 12, pp.29~43 (2003)
- O. Matoba, "Real-time three-dimensional object reconstruction by use of a phase-encoded digital hologram", Appl. Opt, 41(29), pp.6187~6192 (2002)
- Young-Ho Seo, "Lossy coding technique for digital holographic signal", Optical Engineering, 45(6), pp.1~10 (2006), S P I E - International Society for Optical Engineering
- Young-Ho Seo, "3D scanning-based compression technique for digital hologram video", Signal Processing: Image Communication, 22(2), pp.144~156 (2007), Elsevier BV
- Young-Ho Seo, "A new coding technique for digital holographic video using multi-view prediction", IEICE Transactions on Information and Systems, E90-D(1), pp.118~125 (2007), Oxford University Press
- Young-Ho Seo, "Digital hologram compression technique by eliminating spatial correlations based on MCTF", OPTICS COMMUNICATIONS, 283(21), pp.4261~4270 (2010), ELSEVIER SCIENCE BV
- Le Thanh Bang, "Compression of digital hologram for three-dimensional object using Wavelet-Bandelets transform", Optics Express, 19(9), pp.8019~8031 (2011)
- Young-Ho Seo, "Cell-based hardware architecture for full-parallel generation algorithm of digital holograms", Optics Express, 19(9), pp.8750~8761 (2011)