Keyphrases
- keypoints
- dct domain
- scale invariant feature transform
- spatial domain
- transform domain
- post processing
- dct coefficients
- sift features
- digital video
- human visual system
- discrete cosine transform
- multiscale
- image matching
- sift descriptors
- compressed domain
- low pass filtering
- scale invariant
- scale space
- object recognition
- feature detection
- image features
- keypoint detection
- low frequency
- reference frame
- image classification
- invariant features
- frequency domain
- computer vision
- image sequences
- action recognition
- macroblock
- visual words
- video data
- image compression
- denoising
- image blocks
- multiresolution
- feature extraction
- face recognition
- image processing