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This article presents an optimized algorithm for Nonnegative Tensor Factorization (NTF), implemented in the CUDA (Compute Uniform Device Architecture) framework, that runs on contemporary graphics processors and exploits their massive parallelism. The NTF implementation is primarily targeted for analysis of high-dimensional spectral images, including dimensionality reduction, feature extraction, and...
In off-road simulation, the terrain is being modified as a result of its interaction with the vehicles. Previous methods just deal with relatively small scale terrain inputs. In this paper we describe a large scale dynamic terrain visualization method. The potentially visible portion of the terrain is cached in the form of texture arrays and is rendered from the GPU. The terrain deformation is generated...
We present a terrain rending technique for large, textured terrain, which uses GPU-based error metric. In preprocess, the domain was first tiled and computed into a nested geometric space error map based on geographic theory. In order to obtain seamless connection, the edge errors of two connecting tiles are consistent with each other. At run time, screen space error is projected from geometric error...
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