Subspace Quantization on the Grassmannian
Subspace Quantization on the Grassmannian
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DOI:
10.1007/978-3-030-19642-4_25
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发表时间:
2019-04
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影响因子:
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通讯作者:
S. Stiverson;M. Kirby;C. Peterson
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文献类型:
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作者:
S. Stiverson;M. Kirby;C. Peterson
We extend theK-means and LBG algorithms to the framework of the Grassmann manifold to perform subspace quantization. ForK-means it is possible to move a subspace in the direction of another using Grassmannian geodesics. For LBG the centroid computation is now done using a flag mean algorithm for averaging points on the Grassmannian. The resulting unsupervised algorithms are applied to the MNIST digit data set and the AVIRIS Indian Pines hyperspectral data set.