Experiencing “In Mrs. Goldberg’s Kitchen.” Interactive panoramas in Omeka.

AdamHochste-er&HalinaGoldbergIndianaUniversity

Exploring the museum

An inadequate substitute

Solution? An interactive panorama

http://jewish-lodz.iu.edu

Additional context

X3D panoramas

Easily take a physical space and create an interactive, immersive digital version that allows those unable to visit in person a chance to explore the space and provide additional context

What is X3D

“X3D is a royalty-free open standards file format and run-time architecture to represent and communicate 3D scenes and objects using XML. It is an ISO-ratified standard that provides a system for the storage, retrieval and playback of real time graphics content embedded in applications, all within an open architecture to support a wide array of domains and user scenarios.”

-- What is X3D

X3DOM is a Javascript implementation of X3D

Why X3D?

�  ...over other technologies like Flash, WebGL, Unity, etc. �  Open, royalty-free, ISO standard dating back over 20 years

¡  1994 – VRML1 – static models only ¡  1997 – VRML2/VRML97 – moving/interactive worlds ¡  1999 – X3D – eXtensible, XML encoding, modular profiles, v.3.3 in Nov. 2013

�  High-level, declarative scene description (not imperative programming) �  Encapsulates best thinking and practices from 3D graphics community �  Content sustainability

¡  Human-readable ASCII plus efficient Binary encodings ¡  Widely supported as a static file format and interchange format ¡  Several open-source and commercial X3D viewer implementations

�  X3DOM ¡  open-source JavaScript implementation ¡  HTML5 DOM model – no plugin required

Process for creating a panorama

1.  Take pictures 2.  Merge HDR (optional) 3.  Stitch panorama 4.  Convert to cubic 5.  Put in x3d

Panoramic photography

�  Any photo taking device can be used to take a panoramic photograph – quality is the issue

�  Cell phone �  Rico Theta �  DSLR camera �  Gigapan

HDR

�  High dynamic range ¡  Multiple exposures merged later ¡  Lossless format, not JPEG ¡  Even cheap smartphones have this capability

Middle exposure

Low exposure

High exposure

Merged

Stitched panorama

Panoramas in x3d

�  You’ll have a mirrored view, flip your image. �  Individual textures limited to ~16 million pixels

(4096x4096) �  For higher quality split your sphere into a cube

Saladoconverter https://github.com/mstandio/SaladoConverter/downloads The ceiling and floor often can be low quality Individual cube faces can be further divided for even higher quality

Cube faces

Object hotmaping

http://iub.edu/~lodzdsc/panoItem/pano.html

Questions?

Contact me Adam Hochstetteter cyberdh@indiana.edu adamhoch@indiana.edu Cyberinfrastructure for Digital Humanities at Indiana University