The relationship between graph Fourier transform (GFT) and discrete cosine transform (DCT) for 1D signal and 2D image.
Lu YuJun XieXiang ZhengPublished in: Signal Image Video Process. (2023)
Keyphrases
- discrete cosine transform
- discrete fourier transform
- fourier transform
- frequency domain
- image blocks
- fourier coefficients
- fast fourier transform
- blocking artifacts
- transform domain
- coded images
- dct coefficients
- spatial domain
- image compression
- filter bank
- signal processing
- fourier domain
- jpeg images
- low frequency
- dct domain
- hartley transform
- transform coefficients
- fourier analysis
- polar coordinates
- log polar
- high frequency
- image data
- frequency spectrum
- additive noise
- compressed images
- image processing
- jpeg compression
- denoising
- multiscale
- row column
- sar imaging
- pattern recognition
- computer vision
- video sequences
- watermarked image
- radon transform