Posts by David Krum

David Krum co-directs the ICT Mixed Reality Lab, which develops new techniques and technologies for presenting immersive experiences. His research interests include human-computer interaction, virtual reality, and 3D interaction.

Virtual Human Display Study

We are offering $20 to participate in a research study to investigate how virtual reality displays can affect how people react to virtual human characters. Virtual human characters are characters that are computer generated and controlled. This study may help us to understand how to choose equipment and design virtual characters for virtual reality training systems.

If you volunteer to participate in this study, you will be asked to use a helmet mounted display weighing 1 lb (see picture) and observe a virtual human character. We will also ask you to fill out questionnaires before, during, and after your observations. We anticipate that your total participation will last 30 minutes or less.

To be eligible to participate, you must be over the age of 18, able to stand without assistance, able to communicate comfortably in spoken and written English, and have 20/20 vision or vision corrected using glasses or contact lenses.

All participants will receive the compensation at the end of their participation. The study will take place at the USC Institute for Creative Technologies. Please note that this is not located on the USC campus.

Location: 5318 McConnell Avenue, Los Angeles, California 90066. (Off of W. Jefferson Blvd, between Lincoln and S. Centinela).

Participation in this study is completely voluntary, and the decision whether or not to participate will not in any way affect student or employment status at the University of Southern California.

If you are interested in participating, please schedule an appointment online by clicking the following link:

To learn more about the study, please email David Krum. You may also telephone on business days between the hours of 9 AM – 4 PM PST.

David M. Krum, Ph.D.
Computer Scientist
(310) 266-3704

USC Researchers Debut Smartphone 3-D Virtual Reality Viewer Made Out of Cardboard

We unveiled this at the IEEE Virtual Reality Conference, which was March 4-8, 2012 in Costa Mesa, California.

Click here for the full story.

Samsung Galaxy Nexus Viewer Folding Instructions

iPhone Viewer Folding Instructions


The “Tales from the Minus Lab” app is a sneak peek or preview of an environment from the upcoming game Tales from the Minus Lab. Our friends from the “Minus Lab” kindly shared some of their game assets so we could demonstrate how immersive 3D environments could be presented on a smartphone.

Apps written for the Hasbro my3D may also work with an FOV2GO viewer for iPhone 4-4S (and the apps may be “upside-down”).

Search the Apple app store for “my3D” or try an app listed below.

Note: These apps were not written by the FOV2GO team, the MxR Lab, ICT, or USC.

FOV2GO Viewer

FOV2GO Model D Viewer

FOV2GO VIewer for iPhone 4/4S

You can construct your own FOV2GO Model D Viewer – for the iPhone 4/4S, the Samsung Galaxy Note, or most Android smart phones – out of foam board and a couple of plastic lenses. Just download the instructions and the appropriate template. Templates for the Model D are designed to be printed out on multiple sheets of letter-sized paper, so you can use almost any printer.

FOV2GO Model A Viewer

We have designed a fold out viewer, made from inexpensive laser cut foam core and plastic lenses. You can place an iPhone 4, iPhone 4S, or Android Samsung Galaxy Nexus inside the FOV2GO viewer.

If you would like to laser cut your own viewer (or manufacture them yourself using a sharp blade), here are the CAD files that we use:

iPhone Viewer

Samsung Galaxy Nexus Viewer

FOV2GO Model C Viewer


  • FOV2GO apps can be viewed using a Hasbro my3D viewer if you have an iPhone 4, iPhone 4S, or iPod Touch.

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