John Underkoffler

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We introduce a system for urban planning - called Urp -thatintegrates functions addressing a broad range of the fieldsconcerns into a single, physically based workbench setting. The I/OBulb infrastructure on which the application is based allowsphysical architectural models placed on an ordinary table surfaceto cast shadows accurate for arbitrary times of(More)
We describe a novel system for rapid prototyping of laserbased optical and holographic layouts. Users of this optical prototyping tool – called the Illuminating Light system – move physical representations of various optical elements about a workspace, while the system tracks these components and projects back onto the workspace surface the simulated(More)
There is a problem in the spatial and temporal separation between the varying forms of representation used in urban design. Sketches, physical models, and more recently computational simulation, while each serving a useful purpose, tend to be incompatible forms of representation. The contemporary designer is required assimilate these divergent media into a(More)
ABSTRACT We describe a conceptual infrastructure – the Luminous Room – for providing graphical display and interaction at each of an interior architectural space's various surfaces, arguing that pervasive environmental output and input is one natural heir to today’s rather more limited notion of spatially-confined, outputonly display (the CRT). We discuss(More)
This thesis presents a new computer interface metaphor for the real-time and simultaneous performance of dynamic imagery and sound. This metaphor is based on the idea of an inexhaustible, infinitely variable, time-based, audiovisual “substance” which can be gesturally created, deposited, manipulated and deleted in a free-form, non-diagrammatic image space.(More)
One of the great challenges that physical planners and urban designers face is communicating their spatial concepts and ideas to the broader public. Obermeyer (1991) contended that while planners are trained to think in spatial terms, they often fail to highlight the spatial implications of proposed policies to public administrators and policy makers. This(More)
A new body of research, concerning the divergence of information systems away from today's ubiquitous notion of ‘computer’, is emerging. Though the various threads of inquiry diverge significantly in their approach, each generally seeks some intimate integration of computational resources with its user's immediate or extended environment. We introduce here(More)
Four decades of sporadic invention and experimentation of and with non-traditional human-computer interface schemes have congealed (somewhat abruptly though not without a few clear-sighted antecedents) into a new field of information system design, here calledAntisedentary Beigeless Computing, that consciously rejects the traditional conception of isolated(More)
We present an electro-optical apparatus capable of displaying a computer generated hologram (CGH) in real time. The CGH is calculated by a supercomputer, read from a fast frame buffer, and transmitted to a high-bandwidth acousto-optic modulator (AOM). Coherent light is modulated by the AOM and optically processed to produce a three-dimensional image with(More)
A method for producing holographic stereograms with reduced geometrical constraints is presented. The type of holographic stereogram produced, called the ULTRAGRAM, can offer a combination of large viewing zone, arbitrary viewing distance, minimal image distortion, and high spatial resolution, depending on alterable parameters in the image processing(More)