Concept

Orthogonal complement

Related publications (34)

Multichannel Restoration with Limited A Priori Information

We introduce a method for multichannel restoration of images in which there is severely limited knowledge about the undegraded signal, and possibly the noise. We assume that we know the channel degradations and that there will be a significant noise reduct ...

IEEE1999

Wavelet Projections for Volume Rendering

Michaël Unser, Martin Vetterli

We extended Gross's method of volume wavelet rendering by computing splats via an orthogonal projection operator. The method decomposes the volume data into a wavelet pyramid representation in the spline domain. The splats of the basis functions are approx ...

EUROGRAPHICS1999

High-Quality Image Resizing Using Oblique Projection Operators

Michaël Unser

The standard interpolation approach to image resizing is to fit the original picture with a continuous model and resample the function at the desired rate. However, one can obtain more accurate results if one applies a filter prior to sampling, a fact well ...

IEEE1998

Generalized Sampling: Stability and Performance Analysis

Michaël Unser

Generalized sampling provides a general mechanism for recovering an unknown input function

f(x) \in H

from the samples of the responses of m linear shift-invariant systems sampled at 1 ⁄ mth the reconstruction rate. The system can be designed to perform ...

IEEE1997

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Generalized Sampling: Stability and Performance Analysis

Michaël Unser

Generalized sampling provides a general mechanism for recovering an unknown input function

f(x) \in H

from the samples of the responses of m linear shift-invariant systems sampled at 1 ⁄ mth the reconstruction rate. The system can be designed to perform ...

IEEE1997