EG 2017 - Posters

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https://diglib.eg.org/handle/10.2312/2631249

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Browsing EG 2017 - Posters by Subject "I.3.3 [Computer Graphics]"

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    High Quality and Efficient Direct Rendering of Massive Real-world Point Clouds
    (The Eurographics Association, 2017) Bouchiba, Hassan; Groscot, Raphaël; Deschaud, Jean-Emmanuel; Goulette, François; Pierre Benard and Daniel Sykora
    We present a novel real-time screen-space rendering algorithm for real-world 3D scanned datasets. Our method takes advantage of the pull phase of a pull-push pyramidal filling algorithm in order to feed a hidden point removal operator. The push phase is then used to fill the final framebuffer. We demonstrate on a real-world complex dataset that our method produces better visual results and is more efficient comparing to state of the art algorithms.
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    Swung-to-Cylinder Projection for Panoramic Image Viewing
    (The Eurographics Association, 2017) Chang, Che-Han; Lai, Wei-Sheng; Chuang, Yung-Yu; Pierre Benard and Daniel Sykora
    This paper proposes the swung-to-cylinder projection model for mapping a sphere to a plane, which is useful for viewing 360 panoramic images. Our model extends the swung-to-plane model and consists of two steps. In the first step, the sphere is projected onto a swung surface. In the second step, the projected image on the swung surface is mapped onto a cylinder through the perspective projection. The proposed model is simple, efficient and easy to control. Similar to the swung-to-plane model, it makes a better compromise between distortion minimization and line preserving. However, it does not suffer from the distortion problem of the swung-to-plane model when viewing full 360 panoramic images.