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Evaluating creativity support environments is challenging. Some approaches address people&#8217;s experiences of creativity. The present method measures creativity, across conditions, in the products that people make. This research introduces <i>information-based ideation</i> (IBI), a paradigm for investigating open-ended tasks and activities in which(More)
We present zero-thickness optical multi-touch sensing, a technique that simplifies sensordisplay integration, and enables new forms of interaction not previously possible with other multi-touch sensing techniques. Using low-cost modulated infrared sensors to quickly determine the visual hull of an interactive area, we enable robust real-time sensing of(More)
We describe a new method of multi-touch sensing which can be unobtrusively added to existing displays. By coupling individually controlled optoelectronics to the edge of a planar waveguide, our scanning approach overcomes prior disadvantages of optoelectronic multi-touch sensing. Our approach allows for a completely transparent touch surface and easy(More)
Two mixing methods, hand and vacuum mixing, were compared using high viscosity, high molecular, antibiotic containing polymethylmethacrylate kept at two different temperatures, 4 degrees C and 21 degrees C, prior to mixing. The mechanical properties, i.e., fracture strength, maximum deflection, modulus of elasticity and hardness, were improved by vacuum(More)
With the advent of new sensing technologies, precision free-air interaction is becoming viable as a contender for the next generation of expressive, embodied interaction modalities. ZeroTouch [5], a novel multi-touch sensor that allows for free-air multi-finger, multi-object sensing, is one example of this next generation of free-air interfaces. We develop(More)
An integrated transmission diffraction grating in a planar optical waveguide is presented for broadband spectroscopic analysis of liquids and gases. Silicon oxynitride slab waveguides on silicon substrates with low optical loss in the visible range are combined with a phase transmission grating exhibiting a blaze effect at 500 nm to achieve high-efficiency(More)
The representation of information collections needs to be optimized for human cognition. Growing information collections play a crucial role in human experiences. While documents often include rich visual components, collections, including personal collections and those generated by search engines, are typically represented lists of text-only surrogates. By(More)
The risks to aircrew health posed by prolonged exposure to low levels of ionizing radiation at aircraft altitudes have recently received renewed attention. Civil and military aircraft currently on the drawing board are expected to operate at higher altitudes (>12 km) and fly longer ranges than do existing aircraft, thereby exposing their crews to higher(More)