Motivated by the challenging questions of todays sinologists we are developing an automated system for processing of ancient Chinese inscriptions (sutras). As these inscriptions are not accessible due to location or d...
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ISBN:
(纸本)9781424448340
Motivated by the challenging questions of todays sinologists we are developing an automated system for processing of ancient Chinese inscriptions (sutras). As these inscriptions are not accessible due to location or damage our input data are noisy images of paper showing the texture of stones together with the inscriptions transfered by charcoal or pencil. Due to the vast amount and large sizes of the images we adopted highly parallelized - and therefore high-performance -- anisotropic filtering using standard computer hardware. Additionally characters are localized/segmented for further processing by optical character recognition. Real results for ancient Chinese inscriptions, which are mimicking non-standardized handwritings are shown.
We have designed and developed a hierarchical framework for composition of multimedia documents. This framework forms the basis of an important analysis technique for developing high level authoring tools. From the pe...
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We have designed and developed a hierarchical framework for composition of multimedia documents. This framework forms the basis of an important analysis technique for developing high level authoring tools. From the perspective of aiding the task of multimedia production, the emphasis has been placed on the generality and uniformity of the framework and on support for new techniques to improve the authoring environment. Specifically, this framework supports flexible synchronization and flow control as well as a range of interactive, continuous, and discrete media in a uniform fashion. We adopt the hierarchical composition approach in order to support a style of analysis similar to the semantic analysis performed in programming language translation. This analysis capability provides a robust base upon which a number of potential high-level authoring facilities can be built including resource analysis for conflict detection and resolution, interactive specification and editing of the temporal relationships among multiple media materials, and automatic synthesis of candidate solutions for detected problems. We examine various important aspects of this framework and describe how the potential high level authoring tools can be implemented using its analysis capability.
作者:
J.T. StaskoJ.F. WehrliGraphics
Visualization and Usability Center College of Computing Georgia Institute of Technology Atlanta GA USA
Systems supporting the visualization and animation of algorithms, programs, and computations have focused primarily on two-dimensional graphics to date. We identify the benefits and the drawbacks of using three-dimens...
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Systems supporting the visualization and animation of algorithms, programs, and computations have focused primarily on two-dimensional graphics to date. We identify the benefits and the drawbacks of using three-dimensional graphics in these types of systems, and describe how 3D imagery can be used for visualizing computations in interesting new ways. We also present examples of 3D computation visualizations created with a new toolkit that we have developed. The toolkit has been extended to run in a virtual environment and we describe our early interactions with it.< >
In this paper, we present a topological approach for simplifying continuous functions defined on volumetric domains. We introduce two atomic operations that remove pairs of critical points of the function and design a...
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Presents a categorization of techniques for first-person motion control, or travel, through immersive virtual environments, as well as a framework for evaluating the quality of different techniques for specific virtua...
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Presents a categorization of techniques for first-person motion control, or travel, through immersive virtual environments, as well as a framework for evaluating the quality of different techniques for specific virtual environment tasks. We conduct three quantitative experiments within this framework: a comparison of different techniques for moving directly to a target object varying in size and distance, a comparison of different techniques for moving relative to a reference object, and a comparison of different motion techniques and their resulting sense of "disorientation" in the user. Results indicate that "pointing" techniques are advantageous relative to "gaze-directed" steering techniques for a relative motion task, and that motion techniques which instantly teleport users to new locations are correlated with increased user disorientation.
作者:
E. KraemerJ.T. StaskoGraphics
Visualization and Usability Center College of Computing Georgia Institute of Technology Atlanta GA USA
As parallel and distributed computers become more widely available and used, the already important process of understanding and debugging concurrent programs will rake on even greater importance. We believe that visua...
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As parallel and distributed computers become more widely available and used, the already important process of understanding and debugging concurrent programs will rake on even greater importance. We believe that visualization can help in the process. We discuss heretofore unaddressed issues in the visualization of concurrent programs, and present the Animation Choreographer. The Animation Choreographer allows users to view, manipulate, and explore the set of alternate feasible orderings of the program execution under study, both through the Choreographer interface and in the context of the selected visualizations, thus providing the user with a variety of temporal perspectives on the computation.< >
Morphological Associative Memories (MAM) are a construct similar to Hopfield Associative Memories defined on the (R,+, ∨, ∧) algebraic system. The MAM posses excellent recall properties for undistorted patterns. How...
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This paper describes The Krakatoa Chronicle, a highly interactive, personalized newspaper on the World Wide Web (WWW). It is intendedforJava-saviy WWW browsers such as Hotjava, and is architecturally quite differentfr...
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Facial images are often used in applications that need to recognize or identify persons. Many existing facial recognition tools have limitations with respect to facial image quality attributes such as resolution, face...
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ISBN:
(纸本)9789898565471
Facial images are often used in applications that need to recognize or identify persons. Many existing facial recognition tools have limitations with respect to facial image quality attributes such as resolution, face position, and artifacts present in the image. In this paper we describe a new low-cost framework for preprocessing low-quality facial images in order to render them suitable for automatic recognition. For this, we first detect artifacts based on the statistical difference between the target image and a set of pre-processed images in the database. Next, we eliminate artifacts by an inpainting method which combines information from the target image and similar images in our database. Our method has low computational cost and is simple to implement, which makes it attractive for usage in low-budget environments. We illustrate our method on several images taken from public surveillance databases, and compare our results with existing inpainting techniques.
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