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12th Conference of International Building Performance Simulation Association Building Simulation 2011, BS 2011

作者： Pratt, Kevin B. Bosworth, David E. Department of Architecture Cornell University Ithaca NY United States Program of Computer Graphics Cornell University Ithaca NY United States

This paper presents new methods for understanding specific building performance trends and their dependencies by parameterizing digital building models over multiple variables in order to create a high dimensional design space that can be rapidly simulated, analyzed, and visualized. These methods allow for the potential delineation of multiple areas of the design space that are characterized by relatively high performance instead of a single optimum. The ability to identify clusters of high performance is particularly helpful to architectural design processes, which must take into consideration variables that cannot be parameterized and resist quantitative methods of optimization.

关键词： Architectural design

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Design Management Review 2014年第3期25卷

作者： John Maeda Steven Heller Tim Hoover Has been a design partner at Kleiner Perkins Caufield & Byers since January 2014 helping entrepreneurs and portfolio companies to build design into their company cultures. He served as the president of Rhode Island School of Design for six years through 2013 and also served as an associate director of research at the MIT Media Lab. Maeda has been a practicing designer since 1990 and his work is in the permanent collections of the Museum of Modern Art San Francisco Museum of Modern Art and the Cartier Foundation. He serves on the boards of several corporations including Sonos and Wieden + Kennedy and is chair of eBay's Design Advisory Board. His four published books include The Laws of Simplicity and Redesigning Leadership. Maeda is the recipient of a variety of international awards for his creative work including induction into the Art Director's Club Hall of Fame. In 2001 he received the White House National Design Award in 2002 he received the Mainichi Design Prize in Japan and in 2005 he was awarded the Raymond Loewy Foundation Prize in Germany. Maeda earned a BS and an MS from MIT in computer science and electrical engineering. He received a PhD in design science from the University of Tsukuba Institute of Art and Design in Japan as well as an MBA from Arizona State University. Co‐chair and co‐founder of the MFA Designer as Author and Entrepreneur program at the School of Visual Arts in New York. He was the art director of The New York Times Book Review and now writes the VISUALS column for the NYTBR. He also writes “The Daily Heller” at *** a weekly online design column for Atlantic magazine. He is author co‐author and editor of more than 165 books on the history and practice of graphic design illustration and satiric art. His forthcoming books include 100 Classic Graphic Design Magazines (Laurence King Publishers) and Raw Data: The Process Behind Information Graphics (Thames + Hudson). Heller was the 2011 recipient of the Smithsonian National Design Award for Design Mind. He has also writ

John Maeda is a past president of Rhode Island School of Design and an internationally known designer. He's now involved in helping entrepreneurs build design into their company cultures. Writer and educator Steven Heller pairs up with Tim Hoover, head of product and design at Canary, to talk about designer CEOs, start‐ups, and cutting out the middleman.

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Kelvin probe force microscopy: Measurement data reconstruction

Kelvin probe force microscopy: Measurement data reconstructi...

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Scanning Microscopy 2009

作者： Machleidt, Torsten Sparrer, Erik Kubertschak, Tim Nestler, Rico Frankea, Karl-Heinz Ilmenau University of Technology Department of Computer Graphics Program P.O. Box 100565 D-98684 Ilmenau Germany Zentrum für Bild- und Signalverarbeitung e.V. Gustav-Kirchhoff-Str. 5 D-98693 Ilmenau Germany

ISBN: (纸本)9780819476548

The Kelvin Probe Force Microscopy (KPFM) is a method to detect the surface potential of micro- and nanostructured samples using a common Scanning Probe Microscope (SPM). The electrostatic force has a very long range compared to other surface forces. By using SPM systems the KPFM measurements are performed in the noncontact region at surface distances greater than 10 nm. In contrast to topography measurement, the measured data is blurred. The KPFM signal can be described as a convolution of an effective surface potential and a microscope intrinsic point spread function, which allows the restoration of the measured data by deconvolution. This paper deals with methods to deconvolute the measured KPFM data with the objective to increase the lateral resolution. An analytical and a practical way of obtaining the point spread function of the microscope was compared. In contrast to other papers a modern DoF-restricted deconvolution algorithm is applied to the measured data. The new method was demonstrated on a anoscale test stripe pattern for lateral resolution and calibration of length scales (BAM-L200) made by German Federal Istitute for Materials Research and Testing. © 2009 SPIE.

关键词： Optical transfer function

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Learning a nonlinear color distance metric for the identification of skin immunohistochemical staining

Learning a nonlinear color distance metric for the identific...

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2009 22nd IEEE International Symposium on computer-Based Medical Systems, CBMS 2009

作者： Sobieranski, Antonio Carlos Neto, Sylvio Luiz Mantelli Coser, Leandro Comunello, Eros Von Wangenheim, Aldo Cargnin-Ferreira, Eduardo Di Giunta, Gabriella LAPIX Laboratory of Image Processing and Computer Graphics UFSC Federal University of Santa Catarina Brazil CPTEC Center for Weather Forecasts and Environment Studies INPE - Brazilian Institute for Space Research Brazil EGC Knowledge Engineering Department UFSC - Federal University of Santa Catarina Brazil MCA Graduate Program in Applied Computer Science UNIVALI - Itajai Valley University Brazil Laboratory of Histological Markers Department of Biology Embriology and Genetics UFSC - Federal University of Santa Catarina Brazil Pathology Service UFSC - Federal University of Santa Catarina Brazil

ISBN: (纸本)9781424448784

This paper presents a semiautomatic method for the identification of immunohistochemical (IHC) staining in digitized samples. The user trains the system by selecting on a sample image some typical positive stained regions that will be used as a reference for the construction of a distance metric. In this learning process, the global optimum is obtained by induction employing higher polynomial terms of the Mahalanobis distance, extracting nonlinear features of the IHC pattern distributions. The results of the proposed method showed a high correlation to a pathologist's manual analysis, which was used as a golden standard, presenting a more robust discrimination between stained and non-stained areas with little bias. © 2009 IEEE.

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Visual equivalence: An object-based approach to image quality

Visual equivalence: An object-based approach to image qualit...

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16th Color Imaging Conference: Color Science and Engineering Systems, Technologies, and Applications

作者： Ferwerda, James A. Ramanarayanan, Ganesh Walter, Bruce Bala, Kavita Munsell Color Science Laboratory Center for Imaging Science Rochester Institute of Technology Rochester NY United States Department of Computer Science Cornell University Ithaca NY United States Program of Computer Graphics Cornell University Ithaca NY United States

ISBN: (纸本)9780892082810

In this paper we introduce a new approach to characterizing image quality: visual equivalence, Images are visually equivalent if they convey the same information about object appearance even if they are visibly different. In a series of psychophysical experiments we explore how object geometry, material, and illumination interact to produce images that are visually equivalent, and we identify how two kinds of transformations on illumination fields (blurring and warping) influence observers' judgments of equivalence. We use the results of the experiments to derive metrics that can serve as visual equivalence predictors (VEPs) and we generalize these metrics so they can be applied to novel objects and scenes. Finally we validate the predictors in a confirmatory study, and show that they reliably predict observer's judgments of equivalence. Visual equivalence is a significant new approach to measuring image quality that goes beyond existing visible difference metrics by leveraging the fact that some kinds of image differences do not matter to human observers. By taking advantage of higher order aspects of visual object coding, visual equivalence metrics should enable the development of powerful new classes of image capture, compression, rendering, and display algorithms.

关键词： Image quality

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Fast lane detection with Randomized Hough Transform

Fast lane detection with Randomized Hough Transform

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International Symposium on Information Technology, ITSim

作者： Azali Saudi Jason Teo Mohd Hanafi Ahmad Hijazi Jumat Sulaiman Centre for Artificial Intelligence Computer Science Program School of Engineering & Information Technology Universiti Malaysia Sabah Kota Kinabalu Malaysia Computer Graphics Program School of Science & Technology Universiti Malaysia Sabah Kota Kinabalu Malaysia

Lane detection is an essential component of autonomous mobile robot applications. Any lane detection method has to deal with the varying conditions of the lane and surrounding that the robot would encounter while moving. Lane detection procedure can provide estimates for the position and orientation of the robot within the lane and also can provide a reference system for locating other obstacles in the path of the robot. In this paper we present a method for lane detection in video frames of a camera mounted on top of the mobile robot. Given video input from the camera, the gradient of the current lane in the near field of view are automatically detected. Randomized Hough Transform is used for extracting parametric curves from the images acquired. A priori knowledge of the lane position is assumed for better accuracy of lane detection.

关键词： Transforms Roads Pixel Robustness Image edge detection Vehicles Equations

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Measuring affect in HCI: Going beyond the individual

Measuring affect in HCI: Going beyond the individual

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28th Annual CHI Conference on Human Factors in Computing Systems

作者： Shami, N. Sadat Hancock, Jeffrey T. Peter, Christian Muller, Michael Mandryk, Regan Information Science Program Cornell University 301 College Ave Ithaca NY 14850 United States Fraunhofer Institute for Computer Graphics Joachim Jungius Str. 11 18059 Rostock Germany Collaborative User Experience IBM TJ Watson Research Center 1 Rogers St. Cambridge MA 02142 United States Department of Computer Science University of Saskatchewan 176 Thorvaldson Building 110 Science Place Saskatoon SK S7N 5C9 Canada

The measurement of affect in HCI research is a challenging and complex issue. Although a number of techniques for measuring affect have been developed, a systematic discussion of their effectiveness and applicability in different contexts remains lacking, especially in social contexts with multiple users. As computing shifts to increasingly collaborative and ubiquitous models, it is important to discuss affect measurement beyond the individual level. This workshop will provide a forum where designers, practitioners, and researchers can 1) introduce novel methods of affect measurement that go beyond physiological and self-report measures, 2) advance our understanding of existing measurement methods and how they can be expanded, and 3) critically evaluate issues of affect measurement.

关键词： Ubiquitous computing

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Rendering Discrete Random Media Using Precomputed Scattering Solutions

Rendering Discrete Random Media Using Precomputed Scattering...

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18th Eurographics Symposium on Rendering Techniques, EGSR 2007

作者： Moon, Jonathan T. Walter, Bruce Marschner, Stephen R. Department of Computer Science Program of Computer Graphics Cornell University Germany

ISBN: (纸本)9783905673524

This paper addresses light transport through a discrete random medium, which we define as a volume filled with macroscopic scattering geometry generated by a random process. This formulation is more general than standard radiative transport, because it can be applied to media that are made up of closely packed scatterers. A new approach to rendering these media is introduced, based on precomputed solutions to a local multiple scattering problem, including a new algorithm for generating paths through random media that moves through the interior of the medium in large strides without considering individual scattering events. A method for rendering homogeneous isotropic random media is described that generates paths using precomputed scattering solutions compressed and randomly sampled using Nonnegative Matrix Factorization. It can efficiently render discrete media, such as a large pile of glass objects, in which the individual scatterers are visible. The method is demonstrated on scenes containing tens of thousands of transparent, specular objects that are nearly impossible to render with standard global illumination techniques. © The Eurographics Association 2007.

关键词： Piles

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Microfacet Models for Refraction through Rough Surfaces

Microfacet Models for Refraction through Rough Surfaces

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18th Eurographics Symposium on Rendering Techniques, EGSR 2007

作者： Walter, Bruce Marschner, Stephen R. Li, Hongsong Torrance, Kenneth E. Program of Computer Graphics Cornell University United States Beijing Institute of Technology China

ISBN: (纸本)9783905673524

Microfacet models have proven very successful for modeling light reflection from rough surfaces. In this paper we review microfacet theory and demonstrate how it can be extended to simulate transmission through rough surfaces such as etched glass. We compare the resulting transmission model to measured data from several real surfaces and discuss appropriate choices for the microfacet distribution and shadowing-masking functions. Since rendering transmission through media requires tracking light that crosses at least two interfaces, good importance sampling is a practical necessity. Therefore, we also describe efficient schemes for sampling the microfacet models and the corresponding probability density functions. © The Eurographics Association 2007.

关键词： Light reflection

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Teaching beyond sustainable awareness: Graduating leed-accredited professionals

Teaching beyond sustainable awareness: Graduating leed-accre...

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114th Annual ASEE Conference and Exposition, 2007

作者： Kilmer, Rosemary Kilmer, Lisa Purdue University United States Department of Visual and Performing Arts Council of Interior Design Accreditation Department of Computer Graphics Technology Interior Design Program Purdue University United States

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