Abstract:
A computer program product and document management system for managing nested references. The document management system scans each document within the document management system to ascertain if the document includes a nested reference. If a second document is a nested reference of a first document, the document management system creates an indicia of reference indicating the second document is referenced within the first document within a data structure, such as a database. As documents are checked-out, edited, and checked-in to the document management system, the system will update the data structure with any changes such as file name, revision number, and the document management system may also update a pointer to the memory location within the document management system associated with the updated nested reference. Additionally, the document management system can update any links or embedded information in a master document related to the nested reference if the nested reference has been edited.
Abstract:
A method of preparing a composite image from images of a video data stream and for identifying changed features in two composite images. Frames from the video data stream are transformed to a projected ZD image, aligned with adjacent frames and overlapping areas are averaged to provide a higher apparent resolution. A composite image is formed from non-overlapping portions of the images and the averaged overlapping portions of the images. The composite image can be stored in real-time. As a second composite image is prepared of the same location at a later time, portions of the second image can be compared to corresponding portions of the stored image after the intensities of the images are equalized. Image areas whose absolute difference exceeds a threshold are again intensity equalized. Areas that are again above threshold can be flagged for further scrutiny, either by a human or by a machine that performs object recognition. In this way, composite video images of a scene can be prepared and compared in real-time.
Abstract:
A method of taking an aerial survey maps boundaries of a first image and a second image from a first plane to a second plane to determine boundaries of an output image in the second plane. For a plurality of pixels in the output image, the method determines a corresponding pixel of either the first image or second image in the first plane.
Abstract:
A method for generating a composite image includes receiving a separate image into a computer system, comparing the separate image to the composite image so as to generate a mismatch value, and modifying at least one of the composite image and the separate image to reduce the mismatch value. The method is used for identfication of persons in police investigation.
Abstract:
A method of transforming an input image from a hemispherical source to an output image in rectilinear coordinates is disclosed. The method includes receiving data representative of an input image originating from a hemispherical camera and having a size defined by an input image height and an input image width. Once the data is received, an output image width and output image height representative of a size of a in rectilinear coordinates output image is calculated based on the size of the input image. The in rectilinear coordinates output image is then generated by mapping input image pixels to locations within the width and height of the output image, without reference to the optical characteristics of the hemispherical camera.
Abstract:
A method for a computer system includes retrieving values of one or more attributes from a database, performing a computational function upon the values of the one or more attributes to determine a value for a style property associated with a map symbol, and outputting a representation of a map comprising the map symbol having the value for the style property.