An apparatus for generating images of layers of an object from perspective images recorded from different positions by an array of radiation sources. The apparatus comprises an illumination device, for transilluminating the perspective images, and an imaging matrix comprising imaging elements. An optical system axis extends perpendicularly through the center of the matrix. The matrix superimposes the perspective images on a light-sensitive detector surface. In the apparatus, an optical deflection element is arranged in front of or behind each imaging element. The deflection element blurs the perspective image along a pattern which exhibits a major direction. The relevant deflection element is so arranged that the major direction extends at least substantially perpendicularly to a straight line connecting the optical system axis to the center of the imaging element within the matrix plane. All deflection elements are arranged in such a way relative to each other that the major directions subtend substantially equal angles with each other.
Utilizing optical and signal processing techniques a system permitting the continuous monitoring and quality control of pattern and overall coatings applied to web materials is disclosed. Rather than using manual feedback control means to accomplish a uniform and consistent application of pattern or overall material to roll web material, the disclosed system incorporates optical sensing means along with software methodologies that enable the web material to be sampled and characterized over a number of different points. This characterization of the manufacturing process can be used with the disclosed algorithms to implement a quality control feedback mechanism which in turn can automatically correct for changes in manufacturing conditions in realtime. This permits patterns and coatings to be applied consistently without the use of human intervention and with a great reduction in overall material waste and a corresponding increase in overall coating reliability.
A method of creating and displaying images resulting from digital tomosynthesis performed on a subject using a flat panel detector is disclosed. The method includes the step of acquiring a series of x-ray images of the subject, where each x-ray image is acquired at different angles relative to the subject. The method also includes the steps of applying a first set of corrective measures to the series of images, reconstructing the series of images into a series of slices through the subject, and applying a second set of corrective measures to the slices. The method further includes the step of displaying the images or slices according to at least one of a plurality of display options.
An apparatus for representing an internal structure of an object includes an energy source, an energy sensor for sensing energy from the energy source and generating image data pertaining to an object disposed proximate the energy sensor and exposed to energy from the energy source, and a processor programmed to manipulate image data obtained from the energy source as a function of an actual orientation between the radiation source and the energy sensor from which an image of the object can be generated. A method is also disclosed.
