We propose a novel, interactive content-aware zooming operator that allows effective and efficient visualization of high resolution images on small screens, which may have different aspect ratios compared to the input images. Our approach applies an image retargeting method in order to fit an entire image into the limited screen space. This can provide global, but approximate views for lower zo...

This paper is an experimental study on the robustness of the eigenfaces method for face recognition. To build a face recognition system, especially in an unconstrained surveillance system where a clear, direct, and normalized view of the face cannot be assumed, one needs to implement several image preprocessing steps like segmentation, deskewing, zooming, rotation, warping, etc., before process...

Many methods are available for image mosaicing most of which are not useful because they either (1) require a great deal of overlap between images, or (2) if they work for restricted sub-problem (translation, rotation or zooming) they would not work for the others. While numerous methods exist for accurately calculating translational shifts, no method was found that could handle rotations of an...

A method for modeling the image point motion as function of the degree of zoom and focus is described and evaluated. The method requires that the camera can be translated towards a frontoparallel grid of calibration marks. The evaluation shows that, for a translation span of 2 meters, a zoom range from 10 to 96 millimeter, and for focus settings between 1 meter and innnity, the average predicti...

Visual servoing technique used in microassembly limits its application, due to the two inherent problems, small depth of focus and small field of view. To avoid this criticism, in this paper, we present a method of microassembly using active zooming, which can solve these problems. In order to solve the problem of small field of view, the method using active zooming that can prevent the target ...

In this paper, zooming methods which operate directly on color filter array (CFA) data are proposed, analyzed, and evaluated. Under the proposed framework enlarged spatial resolution images are generated directly from the CFA-based image sensors. The reduced computational complexity of the proposed schemes makes them ideal for real-time surveillance systems, industrial strength computer vision ...