id	keyword
american_scientific_journal-4533	image
american_scientific_journal-4533	network
american_scientific_journal-4533	colorization
american_scientific_journal-4533	layer
american_scientific_journal-4533	convolution
american_scientific_journal-4533	model
american_scientific_journal-4533	training
american_scientific_journal-4533	recognition
american_scientific_journal-4533	nir
american_scientific_journal-4533	method
american_scientific_journal-4533	figure