Discrete Shearlet Transform

The shearlet transform, is a very recent sibling in the family of geometric image representations and provides a traditional multiresolution analysis. By a specific design of the discrete shearlet transform in [1] that we use, a lower redundancy factor (around 2.66 or 8/3) is possible than with most other multiresolution representations, while offering an excellent directional analysis and even shift invariance.

Below, a visualization of different shearlet basis functions (spatial domain + frequency domain) is given. Click on the frequency tiling on the left, to select a particular shearlet or scaling function.

Your browser is not Java enabled. Instead you can download and unzip the software and execute the applets locally through the provided batch scripts: click here. Note that this still requires a local Java installation.

Brief explanation of the parameters: