Publication statistics

Pub. period:2001-2009
Pub. count:10
Number of co-authors:24


Number of publications with 3 favourite co-authors:

Shane Booth:
Jeroen van Baar:
Benjamin D. Eidelson:



Productive colleagues

Paul H. Dietz's 3 most productive colleagues in number of publications:

Scott E. Hudson:113
Jodi Forlizzi:90
Clifton Forlines:52

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Paul H. Dietz


Publications by Paul H. Dietz (bibliography)

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Dietz, Paul H. and Eidelson, Benjamin D. (2009): SurfaceWare: dynamic tagging for Microsoft Surface. In: Villar, Nicolas, Izadi, Shahram, Fraser, Mike and Benford, Steve (eds.) TEI 2009 - Proceedings of the 3rd International Conference on Tangible and Embedded Interaction February 16-18, 2009, Cambridge, UK. pp. 249-254.

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Dietz, Paul H., Eidelson, Benjamin, Westhues, Jonathan and Bathiche, Steven (2009): A practical pressure sensitive computer keyboard. In: Proceedings of the ACM Symposium on User Interface Software and Technology 2009. pp. 55-58.

A pressure sensitive computer keyboard is presented that independently senses the force level on every depressed key. The design leverages existing membrane technologies and is suitable for low-cost, high-volume manufacturing. A number of representative applications are discussed.

© All rights reserved Dietz et al. and/or their publisher

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Lee, Johnny C., Hudson, Scott E., Summet, Jay W. and Dietz, Paul H. (2005): Moveable interactive projected displays using projector based tracking. In: Proceedings of the 2005 ACM Symposium on User Interface Software and Technology 2005. pp. 63-72.

Video projectors have typically been used to display images on surfaces whose geometric relationship to the projector remains constant, such as walls or pre-calibrated surfaces. In this paper, we present a technique for projecting content onto moveable surfaces that adapts to the motion and location of the surface to simulate an active display. This is accomplished using a projector based location tracking technique. We use light sensors embedded into the moveable surface and project low-perceptibility Gray-coded patterns to first discover the sensor locations, and then incrementally track them at interactive rates. We describe how to reduce the perceptibility of tracking patterns, achieve interactive tracking rates, use motion modeling to improve tracking performance, and respond to sensor occlusions. A group of tracked sensors can define quadrangles for simulating moveable displays while single sensors can be used as control inputs. By unifying the tracking and display technology into a single mechanism, we can substantially reduce the cost and complexity of implementing applications that combine motion tracking and projected imagery.

© All rights reserved Lee et al. and/or ACM Press

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Dietz, Paul H., Harsham, Bret, Forlines, Clifton, Leigh, Darren, Yerazunis, William, Shipman, Sam, Schmidt-Nielsen, Bent and Ryall, Kathy (2005): DT controls: adding identity to physical interfaces. In: Proceedings of the 2005 ACM Symposium on User Interface Software and Technology 2005. pp. 245-252.

In this paper, we show how traditional physical interface components such as switches, levers, knobs and touch screens can be easily modified to identify who is activating each control. This allows us to change the function performed by the control, and the sensory feedback provided by the control itself, dependent upon the user. An auditing function is also available that logs each user\'s actions. We describe a number of example usage scenarios for our technique, and present two sample implementations.

© All rights reserved Dietz et al. and/or ACM Press

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Raskar, Ramesh, Beardsley, Paul A., Dietz, Paul H. and Baar, Jeroen van (2005): Photosensing wireless tags for geometric procedures. In Communications of the ACM, 48 (9) pp. 46-51.

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Lee, Johnny C., Dietz, Paul H., Maynes-Aminzade, Dan, Raskar, Ramesh and Hudson, Scott E. (2004): Automatic projector calibration with embedded light sensors. In: Proceedings of the 2004 ACM Symposium on User Interface Software and Technology 2004. pp. 123-126.

Projection technology typically places several constraints on the geometric relationship between the projector and the projection surface to obtain an undistorted, properly sized image. In this paper we describe a simple, robust, fast, and low-cost method for automatic projector calibration that eliminates many of these constraints. We embed light sensors in the target surface, project Gray-coded binary patterns to discover the sensor locations, and then prewarp the image to accurately fit the physical features of the projection surface. This technique can be expanded to automatically stitch multiple projectors, calibrate onto non-planar surfaces for object decoration, and provide a method for simple geometry acquisition.

© All rights reserved Lee et al. and/or ACM Press

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Lee, Johnny C., Avrahami, Daniel, Hudson, Scott E., Forlizzi, Jodi, Dietz, Paul H. and Leigh, Darren (2004): The calder toolkit: wired and wireless components for rapidly prototyping interactive devices. In: Proceedings of DIS04: Designing Interactive Systems: Processes, Practices, Methods, & Techniques 2004. pp. 167-175.

Toolkits and other tools have dramatically reduced the time and technical expertise needed to design and implement graphical user interfaces (GUIs) allowing high-quality, iterative, user-centered design to become a common practice. Unfortunately the generation of functioning prototypes for physical interactive devices as not had similar support -- it still requires substantial time and effort by individuals with highly specialized skills and tools. This creates a divide between a designers' ability to explore form and interactivity of product designs and the ability to iterate on the basis of high fidelity interactive experiences with a functioning prototype. To help overcome this difficulty we have developed the Calder hardware toolkit. Calder is a development environment for rapidly exploring and prototyping functional physical interactive devices. Calder provides a set of reusable small input and output components, and integration into existing interface prototyping environments. These components communicate with a computer using wired and wireless connections. Calder is a tool targeted toward product and interaction designers to aid them in their early design process. In this paper we describe the process of gaining an understanding of the needs and workflow habits of our target users to generate a collection of requirements for such a toolkit. We describe technical challenges imposed by these needs, and the specifics of design and implementation of the toolkit to meet these challenges.

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Dietz, Paul H., Raskar, Ramesh, Booth, Shane, Baar, Jeroen van, Wittenburg, Kent and Knep, Brian (2004): Multi-projectors and implicit interaction in persuasive public displays. In: Costabile, Maria Francesca (ed.) AVI 2004 - Proceedings of the working conference on Advanced visual interfaces May 25-28, 2004, Gallipoli, Italy. pp. 209-217.

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Dietz, Paul H., Yerazunis, William S. and Leigh, Darren (2003): Very Low-Cost Sensing and Communication Using Bidirectional LEDs. In: Dey, Anind K., Schmidt, Albrecht and McCarthy, Joseph F. (eds.) UbiComp 2003 Ubiquitous Computing - 5th International Conference October 12-15, 2003, Seattle, WA, USA. pp. 175-191.

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Dietz, Paul H. and Yerazunis, William S. (2001): Real-time audio buffering for telephone applications. In: Marks, Joe and Mynatt, Elizabeth D. (eds.) Proceedings of the 14th annual ACM symposium on User interface software and technology November 11 - 14, 2001, Orlando, Florida. pp. 193-194.

A system that uses an ear proximity sensor to actively manage periods of distraction during telephone conversations is described. We detect when the phone is removed from the ear, record any incoming audio, and play it back when the phone is returned to the ear. By dropping silent intervals and speeding up playback with a pitch-preserving algorithm, we quickly return to real-time without the loss of information. This real-time audio buffering technique also allows us to create a user-activated, lossless instant replay function.

© All rights reserved Dietz and Yerazunis and/or ACM Press

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