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Image Quality Assessment Using Spatial Frequency Component
Image quality assessment low spatial component high spatial component HVS
2013/7/16
Image quality assessment (IQA) is a crucial technique in perceptual image/video coding, because it is not only a ruler for performance evaluation of coding algorithms but also a metric for ratio-disto...
A Prospective Study on Algorithms Adapted to the Spatial Frequency in Tomography
Algorithms Tomography
2009/9/8
The use of iterative algorithms in tomographic reconstruction always leads to a frequency adapted rate of convergence in that low frequencies are accurately reconstructed after a few iterations, while...
Method for Graduation of Osteoporosis by Applying Spatial Frequency Analysis and Cluster Analysis to Digital Radiographs of Lumbar Vertebrae
Osteoporosis Spatial Frequency Analysis Cluster Analysis Digital Radiograph 2DFFT
2009/6/1
Diagnostic standard of osteoporosis in the Japanese Society for Bone and Mineral Research has proposed to diagnose osteoporosis by visual interpretation of bone contraction degree on lateral lumber pl...
Image Quality Assessment Using Spatial Frequency Component
Image Quality Assessment Spatial Frequency Component
2010/12/20
Image quality assessment (IQA) is a crucial technique in perceptual image/video coding, because it is not only a ruler for performance evaluation of coding algorithms but also a metric for ratio-disto...
Spatial Frequency Dependence of the Human Visual Cortex Response on Temporal Frequency Modulation Studied by fMRI
functional magnetic resonance imaging frequency visual stimulation fMRI visual cortex
2010/2/8
Background/Objective: The brain response to temporal frequencies (TF) has been already reported. However, there is no study on different TF with respect to various spatial frequencies (SF). Materials ...