The spatial frequency (SF) scales of facial information are generally used to categorizing faces . The image with high spatial frequencies (HSF) represents the fine-scale details of the original image, while the low spatial frequencies (LSF) retain the large-scale global shape of visual formation.
Read moreWhat is spatial frequency in optics?
The spatial frequency is defined as line pairs per angular extent of the target , and the phase specifies the relative location of the target image to the detector array raster. From: Encyclopedia of Modern Optics, 2005.
Read moreWhat frequencies are used to space communication?
Radio frequency communications for spacecraft are conducted between 30 MHz and 60 GHz . The lower frequency bands are typically more mature for SmallSat usage, however extensive use of these bands has led to crowding and challenges acquiring licensing.
Read moreWhat does a high spatial frequency mean?
Spatial frequency describes the periodic distributions of light and dark in an image. High spatial frequencies correspond to features such as sharp edges and fine details , whereas low spatial frequencies correspond to features such as global shape.
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