On the approximation power of convolution-based least squares versus interpolation.
Michael UnserIngrid DaubechiesPublished in: IEEE Trans. Signal Process. (1997)
Keyphrases
- least squares
- gaussian convolution
- sparse linear
- optical flow
- linear filtering
- robust estimation
- power consumption
- matrix approximation
- levenberg marquardt
- image processing
- approximation error
- parameter estimation
- tikhonov regularization
- b spline
- back projection
- curve fitting
- linear interpolation
- series expansion
- image interpolation
- cubic spline
- policy evaluation
- approximation methods
- error bounds
- image reconstruction
- frequency domain
- motion estimation
- video sequences