Signal recognition: Fourier transform vs. Cosine transform.
Leonid GelmanMichael SandersonChristopher P. ThompsonPublished in: Pattern Recognit. Lett. (2003)
Keyphrases
- fourier transform
- frequency domain
- signal processing
- power spectral density
- frequency spectrum
- cosine transform
- fourier analysis
- fourier coefficients
- feature extraction
- pattern recognition
- fourier domain
- low frequency
- object recognition
- spatial domain
- discrete fourier transform
- image processing
- image encryption
- spectral estimation
- fast fourier transform
- correlation function
- similarity measure
- denoising
- digital images
- high quality