A stereoscopic computer vision system that uses a novel algorithm for obtaining the best match between corresponding features in the left and right images of desired objects in the image scene, finds the disparity between corresponding features in the left and right views and then uses the disparity to calculate the distance of the desired object from the two cameras used to provide the left and right images.

A device for deriving the contour lines for an object from stereophotographic films taken through photographic lenses comprises steroscopic viewing apparatus for comparing the films to locate the different points on the object having a selected height and for producing first position signals representing the positions of the different points in one of the films, and a correction mechanism responsive to the first position signals for producing second position signals which represent corrected pos...

An automatic orthophoto printer and display for the preparation of orthophotographs from a pair of stereo aerial photographs is described which includes circuitry for compensating for position errors of the transports holding the photographs. Position sensors provide digital position signals representing the actual position of each transport in X and Y directions to digital comparators which subtractively combine the position signals with digital stage coordinate signals representing desired pos...

A system for use in conjunction with a stereomapper for determining conjugate points on stereoscopically generated images along a plurality of parallel lines during each mechanical translation of the images across the area being mapped. The system operates in the digital domain and incorporates control logic, either hardware or software, for modifying the data to correct the geometrical distortions, for selecting the data to be correlated in accordance with the parallax data computed from the pr...

The formation of Epipolar (or orthogonal) images from linear sections of a two-dimensional scene image in order to build up a depth map of the scene image using Hough transform techniques presently requires a spaced array of image sensors or scanning movement of a single sensor and then electronic processing of the image signals. Herein, optical radiation from a linear section of a scene image passed to deflector means, for example an elongate helical reflector, which deflects the radiation in d...

A system is described for rapidly and accurately determining the topography of land masses as well as individual x,y,z coordinates of discrete targets. The system incorporates a laser altimeter, a laser scanning/steering system with sensor for receiving reflected laser beams, a global positioning system or other non-ground-based reference means, a video camera, computers, and processing software. The system, mounted to an aircraft, selectively scans or steers a pulsed laser altimeter over a swat...

A high-resolution range imaging system and method can sense the presence of and determine the position or range of each point on the surface of an object through triangulation calculation methods. A moving pattern of light is projected onto the object to be imaged. This resulting moving light pattern, comprised of vertical planes of light, is achieved by projecting light through a moving mask having a DeBruijn code formed thereon, the light being projected through the mask to provide blurring. T...

A digital measuring head in a measuring apparatus measures a work by making a contact element abut to the work. The digital measuring head includes an arm supported rotatably around a support point arranged on a base; a finger having the contact element at a tip end and mounted to a tip end portion of the arm; and a scale and a read head, one of which is provided at a rear end portion of the arm and the other of which is arranged on the base. Displacement of the contact element which contacts wi...

The present invention discloses a stable, soluble formulation comprising a medically useful peptide or protein, a hydrophobic preservative, and nicotinamide. Said storage-stable, soluble formulation is useful as a multi-use pharmaceutical product.

Method and apparatus for producing a fringe pattern corresponding to height and depth gradients of an illuminated object with the fringe pattern lines used to define edges of stacked sheets provided as a filter for X-ray dosage tailoring. A camera is provided to produce the fringe pattern on a photographic film using a compact arrangement of light sources, lenses and gratings all within a convenient housing facilitating use yet at the same time providing sufficient resolution through separation ...