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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...
According to the Vertex Texture Fetch technology in Shader Model 3.0, we designed a terrain rendering algorithm based on vertex texture. The algorithm storages the data of terrain as vertex texture, and get elevation value through the vertex shaders. During rendering phase a group of nested grids are built centeredly around current viewpoint. Elevation values are sampled from the vertex texture according...
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