Abstract
We present an image-based technique to accelerate the navigation in complex static environments. We perform an image-space simplification of each sample of the scene taken at a particular viewpoint and dynamically combine these simplified samples to produce images for arbitrary viewpoints. Since the scene is converted into a bounded complexity representation in the image space, with the base images rendered beforehand, the rendering speed is relatively insensitive to the complexity of the scene. The proposed method correctly simulates the kinetic depth effect (parallax), occlusion, and can resolve the missing visibility information. This paper describes a suitable representation for the samples, a specific technique for simplifying them, and different morphing methods for combining the sample information to reconstruct the scene. We use hardware texture mapping to implement the image-space warping and hardware affine transformations to compute the view-dependent warping function.
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