In this paper, a new still image inpainting method is proposed. The method assumes that the natural images have the fractal property. The main assumption in these images is that each small block of an image can be replaced using another block contained in that image using translation, scaling, and zooming properties. In our method, a very fast and flexible segmentation algorithm is used which p...

Although mobile devices, cellular phones, Personal Digital Assistants (PDAs) and other handheld devices have hardware constraints such as small screen, small storage, low CPU speed, and low resolution, their popularity has been enormously increasing. This is enhancing the opportunities for researchers to overcome those open problems caused of small size hardware constraints. However, still the ...

The Association Navigator is an interactive visualization tool for viewing large tables of correlations. The basic operation is zooming and panning of a table that is presented in graphical form, here called a “blockplot”. The tool is really a tool box that includes, among other things: (1) display of p-values and missing value patterns in addition to correlations, (2) mark-up facilities to hig...

On mobile devices, navigating in high-resolution and high-density 2D information spaces, such as geographic maps, is a common and important task. In order to support this task, we expand on work done in the areas of tilt-based browsing on mobile devices and speed-dependent automatic zooming in the traditional desktop environment to create an efficient interface for browsing high-volume map data...

Image sizes have increased exponentially in recent years. The resulting high-resolution images are often viewed via remote image browsing. Zooming and panning are desirable features in this context, which result in disparate spatial regions of an image being displayed at a variety of (spatial) resolutions. When an image is displayed at a reduced resolution, the quantization step sizes needed fo...

We are evaluating the application of stereoscopic imaging to digital mammography. In the current study, we investigated the effects of magnification and zooming on depth perception. A modular phantom was designed which contained six layers of 1-mm-thick Lexan plates, each spaced 1 mm apart. Eight to nine small, thin nylon fibrils were pasted on each plate in horizontal or vertical orientations ...

This project addresses the issue of developing interactive rendering methods for datasets which cannot be stored on a single hard drive or in main memory anymore. Our dataset is a set of 1400 slices (single cross-sections) of a monkey brain, which has been sliced more than 15 years ago at the Center for Neuroscience at UC Davis, and recently has been scanned at a very high resolution (more than...

Projection-based stereoscopic wall displays allow users to immerse themselves into virtual scenes, such as architecture simulations or games. However, the usually low resolution (dpi) of such displays and slight alignment offsets between the two projectors result in a loss of detail and bad readability of textual information. We propose addressing the problem by overlaying a third projector, so...

Several approaches have been demonstrated to build focus tunable lenses. The additional degree of freedom enables the design of elegant, compact optical systems, typically with less mechanics. We present a new range of electrically and mechanically focus tunable lenses of different sizes and tuning ranges and discuss their characteristics. We show how tunable lenses can be used to improve optic...

This paper addresses the problem of automatically computing homographies between successive frames in image sequences and compensating for the panning, tilting and zooming of the cameras. A homography is a projective mapping between two image planes and describes the transformation created by a fixed camera as it pans, tilts, rotates, and zooms around its optical centre. Our algorithm achieves ...