Using gradient correlation for sub-pixel motion estimation of video sequences.
Vasileios ArgyriouTheodore VlachosPublished in: ICASSP (3) (2004)
Keyphrases
- motion estimation
- video sequences
- motion estimator
- hierarchical block matching
- motion vectors
- gradient orientation
- inter frame
- search range
- motion compensated
- adjacent pixels
- image sequences
- video coding
- motion model
- gradient magnitude
- optical flow
- object tracking
- motion compensation
- gradient field
- block matching
- motion segmentation
- reference frame
- motion field
- video compression
- image derivatives
- gradient vector
- super resolution
- spatial domain
- dynamic scenes
- visual tracking
- motion parameters
- computational complexity
- image frames
- edge map
- foreground objects
- frame rate
- image gradient
- correlation coefficient
- mosaic images
- facial expressions
- bit rate
- video data
- pixel values
- computer vision