Seamless Joining Of Tiles Of Varying Resolutions For Online 3D Terrain Visualization By Dwt Domain Smoothing

Khizar Hayat 1 William Puech 1 Gilles Gesquière 2
1 ICAR - Image & Interaction
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : being proposed for seamless tessellation of texture as well as the digital elevation model (DEM). In the use case, in perspective, the tessellation is heterogeneous in resolution with three different tile qualities or levels of detail (LOD), at a given instant, depending on the viewpoint distance, the time of rendering and hardware resources. The LOD is dependent on the multiresolution characteristic of wavelets from the now widely accepted JPEG2000 codec. Three different joining functions have been employed to create subband-sized masks for each of the tile subbands selected for smoothing. The results, obtained for a practical example, have been interesting in the sense that it eliminated the popping artifacts to a considerable extent without affecting the field of view at a given instant.
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Khizar Hayat, William Puech, Gilles Gesquière. Seamless Joining Of Tiles Of Varying Resolutions For Online 3D Terrain Visualization By Dwt Domain Smoothing. EUSIPCO: EUropean SIgnal Processing COnference, Aug 2009, Glasgow, United Kingdom. pp.2112-2116. ⟨lirmm-00416221⟩

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