PCA and LDA in DCT domain.
Weilong ChenMeng Joo ErShiqian WuPublished in: Pattern Recognit. Lett. (2005)
Keyphrases
- dct domain
- principal component analysis
- linear discriminant analysis
- linear discriminate analysis
- face recognition
- dimensionality reduction
- spatial domain
- dct coefficients
- post processing
- transform domain
- digital video
- discrete cosine transform
- feature extraction
- human visual system
- compressed domain
- principle component analysis
- quantization step
- feature space
- support vector
- low pass filtering
- independent component analysis
- compressed images
- image blocks
- low frequency
- high dimensional data
- support vector machine svm
- wavelet domain
- image resizing
- low dimensional
- face images
- reference frame
- video transcoding
- high dimensional
- svm classifier
- sparse representation
- frequency domain
- natural images
- image classification
- computer vision