Early Iowa Fencing

Fast Fencing

We consider very natural “fence enclosure” problems studied by Capoyleas, Rote, and Woeginger and Arkin, Khuller, and Mitchell in the early 90s. Given a set S of n points in the plane, we aim at finding a set of closed curves such that (1) each point is enclosed by a curve and (2) the total length of the curves is minimized. We consider two main variants. In the first variant, we pay a unit cos...

Image De-fencing Revisited

We introduce a novel image defencing method suitable for consumer photography, where plausible results must be achieved under common camera settings. First, detection of lattices with see-through texels is performed in an iterative process using online learning and classification from intermediate results to aid subsequent detection. Then, segmentation of the foreground is performed using accum...

Early Geological Explorations of the Silurian System in Iowa

The Early History and Recent Trends in Iowa Herpetology

Automatic Image De-fencing System

Tourists and Wild-life photographers are often hindered in capturing their cherished images/videos by a fence that limits accessibility to the scene of interest. The situation has been exacerbated by growing concerns of security at public places and a need exists to provide a tool that can be used for post-processing such “fenced videos to produce a “de-fenced” image. There are several challeng...