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Augmented reality aims to insert virtual objects in real scenes. In order to obtain a coherent and realistic integration, these objects have to be relighted according to their positions and real light conditions. They also have to deal with occlusion by nearest parts of the real scene. To achieve this, we have to extract photometry and geometry from the real scene. In this paper, we adapt high dynamic...
Stereoscopic displays are becoming very popular since more and more contents are now available. As an extension, auto-stereoscopic screens allow several users to watch stereoscopic images without wearing any glasses. For the moment, synthetized content are the easiest solutions to provide, in realtime, all the multiple input images required by such kind of technology. However, live videos are a very...
In this paper we propose a new approach for disocclusion removal in depth image-based rendering (DIBR) for 3D-TV. The new approach, Hierarchical Hole-Filling (HHF), eliminates the need for any preprocessing of the depth map. HHF uses a pyramid like approach to estimate the hole pixels from lower resolution estimates of the 3D wrapped image. The lower resolution estimates involves a pseudo zero canceling...
Free viewpoint video enables the visualisation of a scene from arbitrary viewpoints and directions. However, this flexibility in video rendering provides a challenge in 3D media for achieving spatial synchronicity between the audio and video objects. When the viewpoint is changed, its effect on the perceived audio scene should be considered to avoid mismatches in the perceived positions of audiovisual...
In this paper, a new filtering technique addresses the disocclusions problem issued from the depth image based rendering (DIBR) technique within 3DTV framework. An inherent problem with DIBR is to fill in the newly exposed areas (holes) caused by the image warping process. In opposition with multiview video (MVV) systems, such as free viewpoint television (FTV), where multiple reference views are...
Light field rendering (LFR) is an image-based method for generating novel views from a set of camera images. When sample of camera array is sparse, conventional light field rendering would cause aliasing artifacts. We present a straightforward layer-based method that significantly removes the aliasing artifacts with no prior knowledge of the scene geometry. First, a sparse disparity map is generated...
In order to satisfy the real time request of optical Imaging Simulation System for small celestial bodies, this paper proposed a simulation method of the camera based on physical model, which is based on OpenGL pinhole imaging model and simulate optical camera parameters with graphic functions. By combining with rendering to texture and graphics hardware programming technologies, the article got sequence...
Perceptual information is quickly gaining importance in mesh representation, analysis and rendering. User studies, eye tracking and other techniques are able to provide ever more useful insights for many user-centric systems, which form the bulk of computer graphics applications. In this work we build upon the concept of Mesh Saliency - an automatic measure of visual importance for triangle meshes...
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