Eero Simoncelli’s lab at NYU
Density Modeling of Images using a Generalized Divisive Normalization Transformation
Friday 19th of February 2016 at 11:00am
We introduce a parametric nonlinear transformation for jointly Gaussianizing patches of natural images. The transformation is differentiable, can be efficiently inverted, and thus induces a density model. It generalizes and performs better than several previous image models such as ICA, radial Gaussianization, and ISA. Model samples are visually similar to natural image patches. We use the model for image restoration, and show that it can be cascaded to build nonlinear hierarchies analogous to multiscale representations.
Join Email List
You can subscribe to our weekly seminar email list by sending an email to
email@example.com that contains the words
subscribe redwood in the body of the message.
(Note: The subject line can be arbitrary and will be ignored)