نتایج جستجو برای: sparse non
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Spectral unmixing of hyperspectral images is one of the most important research fields in remote sensing. Recently, the direct use of spectral libraries in spectral unmixing is on increase. In this way which is called sparse unmixing, we do not need an endmember extraction algorithm and the number determination of endmembers priori. Since spectral libraries usually contain highly correlated s...
Gyrate atrophy (GA) is a rare, progressive metabolic choroid and retinal degeneration that results from a deficiency of the pyridoxal phosphate-dependent mitochondrial matrix enzyme ornithine aminotransferase. Here, we report the case of a 40-yearold woman who presented with a gradual decline in visual acuity since puberty, along with a history of high myopia and cataract surgery. She was admit...
Image representation is a crucial problem in image processing where there exist many low-level representations of image, i.e., SIFT, HOG and so on. But there is a missing link across low-level and high-level semantic representations. In fact, traditional machine learning approaches, e.g., non-negative matrix factorization, sparse representation and principle component analysis are employed to d...
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