CompAesth 08: Workshop on Computational Aesthetics

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https://diglib.eg.org/handle/10.2312/319

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Browsing CompAesth 08: Workshop on Computational Aesthetics by Subject "Categories and Subject Descriptors (according to ACM CCS): I.3.8 [Computer Graphics]: Applications"

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    Expressive Trajectories
    (The Eurographics Association, 2008) Velho, Luiz; Martins, Julio; Bodanzky, Alice; Paterman, Ilana; Cordeiro, Analivia; Douglas W. Cunningham and Victoria Interrante and Paul Brown and Jon McCormack
    This paper presents Expressive Trajectories, a project for Interactive Digital Art and Contemporary Dance. The project has two main components: X-Motion, a real-time interactive system for live performances; and Choreographisms, an interface abstraction for graphical interpretation of motion-paths. This framework is demonstrated through an experiment that includes a choreography of the artist-collaborator for the piece Unsquare Dance.
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    Modeling and Synthesis of Aperture Effects in Cameras
    (The Eurographics Association, 2008) Lanman, Douglas; Raskar, Ramesh; Taubin, Gabriel; Douglas W. Cunningham and Victoria Interrante and Paul Brown and Jon McCormack
    In this paper we describe the capture, analysis, and synthesis of optical vignetting in conventional cameras. We analyze the spatially-varying point spread function (PSF) to accurately model the vignetting for any given focus or aperture setting. In contrast to existing "flat-field" calibration procedures, we propose a simple calibration pattern consisting of a two-dimensional array of point light sources - allowing simultaneous estimation of vignetting correction tables and spatially-varying blur kernels. We demonstrate the accuracy of our model by deblurring images with focus and aperture settings not sampled during calibration. We also introduce the Bokeh Brush: a novel, post-capture method for full-resolution control of the shape of out-of-focus points. This effect is achieved by collecting a small set of images with varying basis aperture shapes. We demonstrate the effectiveness of this approach for a variety of scenes and aperture sets.