Sub-pixel motion estimation using gradient cross-correlation.
Vasileios ArgyriouTheodore VlachosPublished in: ISSPA (2) (2003)
Keyphrases
- cross correlation
- motion estimation
- phase correlation
- frequency domain
- gradient orientation
- gradient magnitude
- motion estimator
- template matching
- hierarchical block matching
- search range
- mutual information
- video coding
- optical flow
- gradient field
- image sequences
- image derivatives
- gradient vector
- super resolution algorithm
- motion compensated
- spatial domain
- computational complexity
- motion compensation
- video sequences
- input image
- edge detection
- motion vectors
- motion field
- computer vision
- reference frame
- edge map
- image gradient
- block matching
- motion model
- image processing
- data mining
- absolute difference
- feature extraction
- multiscale
- machine learning
- high resolution
- motion estimation algorithm
- gradient information
- optical flow estimation
- scale space
- inter frame
- motion parameters