Ultra-realistic Communication Research Articles

Torch Relay Commemorative Photography × Ultra-realistic Communication Technology Kirari!

Torch Relay Commemorative Photography × Ultra-realistic Communication Technology Kirari!

Stage Production for Celebration of Torch Relay × Ultra-realistic Communication Technology Kirari!

Stage Production for Celebration of Torch Relay × Ultra-realistic Communication Technology Kirari!

Three-dimensional radiated sound field display system using directional loudspeakers and wave field synthesis

Three-dimensional (3D) radiated sound field display systems are important toward realizing ultrarealistic communications systems such as 3D television. In this paper, a 3D radiated sound field display system using directional loudspeakers and wave field synthesis is proposed. The proposed system is based on the Fresnel-Kirchhoff diffraction formula, which is the approximate form of the Kirchhoff-Helmholtz integral equation. The proposed system was developed by constructing the surrounding microphone array and radiated loudspeaker array. To evaluate the performance of the developed system, the positions of sound images were estimated. The results indicated that the 3D sound field is accurately controlled outside of the radiated loudspeaker array by sharpening the radiation directivity of the loudspeaker units and that the sound images are not correctly estimated in the developed system because the radiation directivity of loudspeaker units is not sufficiently sharp.

Research on Ultra-Realistic Communications

National Institute of Information and Communications Technology (NICT) is researching ultra-realistic communications system that provides natural and real communications to verybody. Main research subjects are holographic 3D image and sound systems and necessary requirements for ultra-realistic systems based on underlying principles of human information processing. The Ultra-Realistic Communications Forum was established on March, 2007 to ensure efficient industry-academia-government collaboration in research, development, verication experiments, and standardization on ultra-realistic technologies.

Study on Quality Improvement of Electronic Holography for Ultra-Realistic Communication

Study on Quality Improvement of Electronic Holography for Ultra-Realistic Communication