A Bayes-spectral-entropy-based measure of camera focus using a discrete cosine transform.
Matej KristanJanez PersMatej PerseStanislav KovacicPublished in: Pattern Recognit. Lett. (2006)
Keyphrases
- discrete cosine transform
- image compression
- transform domain
- information theory
- filter bank
- dct coefficients
- dct domain
- jpeg images
- blocking artifacts
- field of view
- image blocks
- similarity measure
- compressed images
- discrete fourier transform
- feature space
- fast fourier transform
- image and video coding
- spatial domain
- wavelet transform
- multiresolution
- high quality