Abstract: A system and a method are disclosed that allows for generation of a model or reconstruction of a model of a subject based upon acquired image data. The image data can be acquired in a substantially mobile system that can be moved relative to a subject to allow for image acquisition from a plurality of orientations relative to the subject. The plurality of orientations can include a first and final orientation and a predetermined path along which an image data collector or detector can move to acquire an appropriate image data set to allow for the model of construction.

Abstract: A method and system is disclosed for acquiring image data of a subject. The image data can be collected with an imaging system having a detector able to move relative to the subject. A contrast agent can be injected into the subject and image data can be acquired with the contrast agent in various phases of the subject. A volumetric model of multiple phases can be reconstructed selected reconstruction techniques.

Abstract: A method and system is disclosed for acquiring image data of a subject. The image data can be collected with an imaging system with at least two different power characteristics. A volumetric model of multiple phases can be reconstructed using dynamic or enhanced reconstruction techniques.

Abstract: A system and a method are disclosed that allow for generation of a model or reconstruction of a model of a subject based upon acquired image data. The image data can be acquired in a substantially mobile system that can be moved relative to a subject to allow for image acquisition from a plurality of orientations relative to the subject. The plurality of orientations can include a first and final orientation and a predetermined path along which an image data collector or detector can move to acquire an appropriate image data set to allow for the model of construction.

Abstract: The invention relates to methods and systems of detecting useful material in a mixed solid, liquid and/or gaseous material stream. The methods include defining a value range requirement for at least one parameter of interest of useful material to be selected from the material stream, passing the material stream through at least one detector adapted to measure the parameter of interest of the material stream, and separating the material stream into useful material and residue based on the measured parameter. The systems comprise at least one detector adapted to measure a parameter of interest of the material stream passing therethrough; and at least one separator for separating the material stream into useful material and residue based on the measured parameter after passing through the detector. The system may further comprise treaters, processors, and controllers.

Abstract: A first image including a projection of a portion is generated based on data representing attenuation of higher-energy radiation having a peak energy of at least 1 MeV that passes through a portion of an inspection volume. A second image including a projection of the portion is generated based on data representing attenuation of lower-energy radiation passing through the portion of the inspection volume. A dual-pixel image is created from the first image and the second image. A region of interest is selected from the dual-pixel image. A first basis function that is derived from an attenuation characteristic associated with the region of interest is selected. The region of interest is represented in terms of an amplitude associated with the first basis function and an amplitude associated with the second basis function.

Abstract: A method or apparatus for analyzing an object includes an X-ray prescanner that performs a prescan of the object to determine prescan information about the object. Then, a CT scanner performs a CT scan on at least one plane of the object based on the prescan information to determine CT information. In one embodiment, if the CT scan of the object includes or is in the vicinity of metal, then metal artifact correction of a reconstructed image from the CT scan is performed based on the prescan information. In another embodiment, a processor analyzes the CT information and the prescan information to determine whether to update the prescan information based on the CT information.

Abstract: An inspection system having a user friendly operator display. Characteristics of items under inspection are represented in the display by color and brightness. Each pixel on the display is assigned an intensity representation of a first characteristic of a region of an item, such as density. Color is assigned to each pixel based on anther characteristic of the regions, such as atomic number. The intensity assigned to each pixel in the display is based in part on the color assigned to that pixel so that each pixel representing the same value of the first characteristic will appear to a human with the same brightness, regardless of the color assigned to the pixels. Such a display is used in an x-ray inspection system to represent attenuation of x-rays by brightness and effective atomic number by color.

Abstract: A method for converting a digital image to an analog-simulative film-like digital image includes (a.) obtaining digital image input values for a number of pixels, each pixel having a digital image input value X, wherein the range of input values for all pixels defines the input dynamic range; (b.) for each pixel, determining an analog-simulative film-like output value Y = ∑ i = 1 M ⁢   ⁢ A i ⁢   ⁢ X Pi + Bi wherein Ai, pi, and Bi are real numbers, and M is an integer value greater than or equal to 1; and (c.) communicating the analog-simulative film-like digital image or data associated therewith to a remote facility over a network.

Abstract: A method for converting a digital image to an analog-simulative film-like digital image is described wherein input pixel values (designated X) from the original digital image are converted to film-like output values (designated Y) wherein Y=AXp+B. The input values X, which range from Xmin to Xmax, are divided into consecutive intervals wherein different values of A, p, and B are applied for each interval. Most preferably, three intervals are defined so as to correspond to low, medium, and high light/radiation response intervals on film. In a low light/radiation region wherein X<X1, A is generally chosen to be less than 1 to provide range compression at the low end of the input dynamic range, and p is generally chosen to be greater than 1 to provide increasing light response. In a high light/radiation region wherein X>X2, p is generally chosen to be less than 1 to provide range compression.