Spatial 3D imaging by synthetic and digitized holography

A novel method named digitized holography is proposed for 3D display systems. This is the technique replacing the whole process of classical holography with digital processing of optical wave-fields. The digitized holography allows us to edit holograms and reconstruct spatial 3D images including real-existent objects and CG-modeled virtual objects.2011 3DTV-Conference: The True Vision - Capture, Transmission and Display of 3D Video (3DTV-CON 2011), 16-18 May 2011, Antalya, Turke

New techniques for wave-field rendering of polygon-based high-definition CGHs

Four novel techniques are introduced into polygon-based high-definition CGHs(PBHD-CGH) that feature the true-fine spatial 3D image accompanied with a strong sensation of depth. The first is algorithm for creatingspecular surfaces based on Phong reflection model. This is very useful for providing a feel of material to polygonal surfaces. The second technique is called digitized holography that replaces the entire processes of classical holography by their digital counterparts. The wave-field of real-existent objects can be optically reconstructed by the digitized holography. This technique makes it possible to edit the 3D scene of holograms or create mixed 3D scene of the real and virtual objects. Another technique for creating PBHD-CGH of real-existent objects is also proposed by a CG-like method using a 3D laser scanner that measures the 3D shape of the object. Finally,a prototype PBHD-CGH is demonstrated for creating landscape scenery. This CGH is intended to reconstruct a scene as if the viewers see mountain scenery through the window given by the CGH.he authors thank Prof. Kanaya for his assistance in 3D scan of live faces. The mesh data for the Venus object is provided courtesy of INRIA by the AIM@SHAPE Shape Repository. This work was supported by the JSPS.KAKENHI (21500114

ZAC, LIT1 (KCNQ1OT1) and p57 KIP2 (CDKN1C) are

in an imprinted gene network that may play a role in Beckwith–Wiedemann syndrom

A three-dimensional movie of structural changes in bacteriorhodopsin.

International audienceBacteriorhodopsin (bR) is a light-driven proton pump and a model membrane transport protein. We used time-resolved serial femtosecond crystallography at an x-ray free electron laser to visualize conformational changes in bR from nanoseconds to milliseconds following photoactivation. An initially twisted retinal chromophore displaces a conserved tryptophan residue of transmembrane helix F on the cytoplasmic side of the protein while dislodging a key water molecule on the extracellular side. The resulting cascade of structural changes throughout the protein shows how motions are choreographed as bR transports protons uphill against a transmembrane concentration gradient