Face recognition using DWT compression and PSO-based DCT feature selection.
YiGui SunDexiang ZhouPublished in: ICDIP (2011)
Keyphrases
- feature selection
- image compression
- discrete cosine transform
- lossy compression
- jpeg images
- wavelet transform
- compression ratio
- discrete wavelet transform
- jpeg compression
- subband
- compression algorithm
- discrete cosine transformation
- dct coefficients
- human faces
- compression scheme
- machine learning
- lossless compression
- low bit rate
- image watermarking
- data compression
- feature extraction
- digital watermark
- particle swarm optimization
- compression standards
- high frequency
- feature selection algorithms
- lifting scheme
- particle swarm optimization pso
- low frequency
- face images
- transform domain
- wavelet filters
- multiresolution
- facial expressions
- classification accuracy
- dct domain
- feature set
- feature space
- image quality
- energy compaction
- text categorization
- filter bank
- frequency domain
- reconstructed image
- spatial domain
- image coding
- wavelet coefficients