Abstract: A multi-layer viewing system includes a stationary imager and a beam projector to project physical layer markings onto a region of an object. A headset includes an augmented reality display that is sufficiently transparent to enable a user who is wearing the headset to directly view the object through the display, and to display annotation that is superimposed on the object. A processor is configured to receive a selected location relative to the target for display of the annotation, determine an orientation of the augmented reality display by identifying images of markings in acquired images or markings on the object, calculate a display location for displaying the annotation on the augmented reality display such that the annotation is perceivable by the user as displayed at the selected position, and display the annotation at the calculated display location.

Abstract: A multi-layer viewing system includes a stationary imager and a beam projector to project physical layer markings onto a region of an object. A headset includes an augmented reality display that is sufficiently transparent to enable a user who is wearing the headset to directly view the object through the display, and to display annotation that is superimposed on the object.

Abstract: A method and apparatus providing good image enhancement for the visually impaired utilizing the “Ullman-Zur enhancement” algorithm. The method and apparatus consists in obtaining an original image, detecting and enhancing the edges and lines of the image by using Balanced Difference of Gaussians to obtain a first processed image, smoothing the original image by using a convolution of the original image with Gaussian, enhancing the contrast of the smoothed image, calculating the intensity average, AC, and the standard deviation of the intensity, SDC, of the chosen region, and stretching the intensity of the smoothed image linearly according to AC, SDC, and some specific rules to obtain a second processed enhanced image. The first processed image is superimposed on the second processed enhanced image to obtain the final enhanced image that is more readily perceived by a visually impaired person.

Abstract: A micro-perimeter technique using a portable computer and a projector, and using two screening methods, multi-resolution static and bi-directional kinetic. The static method, as applied to a static test, starts with relatively low-resolutions, and only the unseen zones are selectively remapped under higher resolutions during successive iterations. The bi-directional kinetic method, as applied to a kinetic test, uses a response to a continuously moving target, and the unknown response delay is compensated for by an algorithm that merges the patient's response to measurements at the same visual location, but with opposite scanning directions. Offline visualization of the mapping results is performed automatically superimposed over the fundus image.

Abstract: A system and method for producing controlled cooling of a liquid including the steps of: removing heat from the liquid so as to cause formation of solid portions therein; and generally simultaneously with removing heat from the liquid, supplying energy to the solid portions at a frequency which is absorbed by the solid portions to a significantly greater extent than by the liquid.

Abstract: A testing bed for use in testing printed circuit boards and the like includes a light-transmissive supporting member, a plurality of spaced strips of light-transmissive, electrically-conductive material on one face of the supporting member, and a plurality of probe elements overlying and in contact with the strips. Each of the probe elements includes an outer electrically-conductive contact point for contact with a pad of the article to be tested. A photoconductive material between the probe elements and the strip forms a photoconductive gate.