On January 29, the 3D Consortium organized a joint 3D symposium for the general public with the Technical Group on Three-Dimensional Image Technology (Chair: Makoto Okui/The National Institute of Information and Communications Technology (NICT) Universal Communication Research Institute) at the Panasonic Digital Soft Lab. Under the theme "Expanding 3D technologies", this symposium introduced 3D documentary films of the Great East Japan Earthquake as one of the possibilities of 3D documentaries. In addition, lectures about the concrete application cases of 3D technologies and results of the latest research and development concerning 3D image technologies were given by persons at the forefront in the field of various 3D technologies. There were 33 members at the symposium for a total of 38 people attending.

> Outline of Lecture
NHK Media Technology, Inc. has already produced four main stories and two side stories under the series title "The Ravages of the Tsunami" by continuous coverage in various places in the Tohoku region as 3D fixed-point observation. Producers of these series who have been in charge of this coverage for 3 years think that documentaries, not entertainment or sports, can open up new possibilities of 3D images. Possibilities of 3D documentaries will be brought up anew by presentation of the full version (24 minutes) of the latest work of these series produced in 2013 in 3D while introducing the current situation of the affected areas and case examples of related exhibitions and publications. * 3D presentation

> Outline of Lecture
Firstly, results of the amount of extrusion and retraction of 40 kinds of commercially available 3D videos will be reported. Then, results of discussions by experimentally comparing subjective eye strain when the same contents are viewed in 2D and 3D by using a 3D TV based on the active shutter glasses technology in terms of relations with visual performance will be reported.

> Outline of Lecture
The hologram printer developed by Pioneer Corporation does not require any extensive shooting environment and equipment including models for shooting and vibration removing equipment, and advanced shooting techniques and knowledge including optical system settings and exposure conditions when traditional Lippmann holograms are created. With this hologram printer, anyone can easily create holograms from three-dimensional geometric data such as computer graphics (CG). In addition to CG data, photos and letters can freely be combined which enables enhanced flexibilities in designs of holograms and creation of one-and-only original holograms. The outline and some application examples of the hologram printer will be introduced. * Exhibition with demonstrations

> Outline of Lecture
It has been a long time since the collaboration of each field of expertise including art, technology and education and the importance of such collaboration were recognized. What can various gaming technologies and the concept of usability contribute to in this composite region? This research is a trial to discuss how the sight of mathematics and physics can be expanded by technologies and viewpoint of gaming from the standpoint of creators through production of image products by taking visualization of elementary complex functions as an example. It will also be discussed as an application example of 3D printers.