We propose a new model called the "composite model" to represent spectral functions. This model is built on the idea of decomposing all spectral functions into smooth and spiky components, each with its own distinct representation. A smooth spectrum can be expressed with coefficients of a set of given basis functions, and the discrete spikes in a spiky spectrum with their locations and heights. For the smooth part, we propose re-sampling functions that are reconstructed from the coefficients in a linear combination to improve efficiency. Spectral multiplication is thus greatly reduced in complexity. This new model shows remarkable advantages in representing spectral functions with aspect to accuracy, compactness, computational efficiency, portability, and flexibility, and it has a great application potential in color science, realistic image synthesis, and color image analysis. Here we apply it to rendering images involving real spiky illuminants as well as objects with light dispersion. The composite model is shown to surpass other models in these applications.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Representing spectral functions by a composite model of smooth and spiky components for efficient full-spectrum photorealism


    Beteiligte:
    Yinlong Sun (Autor:in) / Drew, M.S. (Autor:in) / Fracchia, F.D. (Autor:in)


    Erscheinungsdatum :

    01.01.1999


    Format / Umfang :

    9271 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Representing Spectral Functions by a Composite Model of Smooth and Spiky Components for Efficient Full-Spectrum Photorealism

    Sun, Y. / Drew, M. / Fracchia, F. et al. | British Library Conference Proceedings | 1999



    Photorealism in Driving Simulations: Blending Generative Adversarial Image Synthesis With Rendering

    Yurtsever, Ekim / Yang, Dongfang / Koc, Ibrahim Mert et al. | IEEE | 2022


    A polymer-based spiky microelectrode array for electrocorticography

    Márton, G. / Kiss, M. / Orbán, G. b. et al. | British Library Online Contents | 2015


    REPRESENTING FULL-SCALE WIND TURBINE NOISE

    CASALINO DAMIANO / VAN DER VELDEN WOUTER | Europäisches Patentamt | 2023

    Freier Zugriff