Gabor Filter Visualization.
V. Shiv Naga Prasad and Justin Domke
Our goal was to create an interface which allows the user to understand the response of a bank of gabor filters to an image. This is difficult, because this means visualizing a high dimension space.
Matlab Code: code
The contents of this website: website.zip
We present a system for the visualization of an important signal processing technique- a Gabor Filter bank's response to an image. To do this, one must overcome the problem that no multi-dimensional space can be shown in a a single, static graph. We use an interactive widget to change the visible range of the projected dimensions, and additional graphics which summarize the responses in the projected dimensions. Thus, though we view this four-dimensional space through 2-dimensional projections, we allow the user to understand all dimensions, not just the plane of projection. We found that the implemented system helped in getting a better understanding of gabor filter responses. We think that use of a domain depedent interaction tool and additional summarization graphics may be useful in a more general Information Visualization setting.