Reducing frequency-domain artifacts of binary image due to coarse sampling by repeated interpolation and smoothing of Radon projections.
Peizhen ZhangShuozhong WangRuntian WangPublished in: J. Vis. Commun. Image Represent. (2012)
Keyphrases
- frequency domain
- binary images
- radon transform
- fourier transform
- low pass filtering
- spectral domain
- low pass
- spatial domain
- gray scale
- back projection
- connected components
- euclidean distance transform
- directional filtering
- subband
- input image
- multiresolution
- denoising
- feature extraction
- high quality
- coarse to fine
- gray level images
- fourier domain
- connected component labeling
- fast fourier transform
- noisy images
- chain code
- structuring elements
- hough transform