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| Determination of fit basis functions |
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Multi-page document viewer having a focus image and recursively nested images of varying resolutions less than the resolution of the focus image
| Details |
Inventors: Niles, Leslie T.; Bloomberg, Dan S.;
Assignee: Xerox Corporation (Stamford, CT)
Primary Examiner: Powell; Mark R.
Assistant Examiner: Rossi; Jeffrey Allen
Attorney, Agent or Firm:
A document display system arranges images of a document ordered in a linear array of pages on a display screen. One page of the document is defined as a focus page which is displayed at the center of the display screen. Images of pages preceding the focus page in the linear array of pages are presented to a user using a first recursive block that is located to the left of the focus page on the display screen. Images of pages following the focus page in the linear array of pages are presented to a user using a second recursive block that is located to the right of the focus page on the display screen. Each recursive block is initially filled with images that are arranged proximate to the focus page in the array of pages. This arrangement of the pages of a document on the display screen provides a context within which to view the selected focus page of a document. In addition, this arrangement of pages provides a method for traversing pages of a document to enable a user to quickly locate and bring a certain page into focus. A user traverses pages of the document by selecting one of the displayed pages on the display screen to be a new focus page. In response to the selection of a new focus page, the document display system locates the new focus page in the linear array of pages, and brings the new focus page to the center of the display while shuffling the other pages of the document to predefined sizes and locations. |
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DETAILED DESCRIPTION In accordance with one aspect of the invention, there is provided a method for processing images of a document with a display system.
The display system includes a display screen for presenting images to a user, a user input device for receiving signals indicating commands from the user, memory for storing images of the document in an array, and a processor for receiving commands from the user input device directed at displaying the images of the document stored in the memory on the display screen.
Initially, an image of the document in the array is identified that defines a focus image of the document to be displayed on the display screen.
Subsequently, a display layout identifying a location and a resolution at which to display the images of the document on the display screen is calculated with the processor.
The display layout includes the focus image, a first set of images, and a second set of images.
The first set of images and the second set of images have nested sub-sets of images with resolutions that decrease as the position of images in the array of images increases relative to the focus image.
Finally, images in the array are displayed on the display screen in accordance with the display layout.
In accordance with another aspect of the invention, there is provided a method for processing documents for display on a screen.
The method includes the steps of selecting a document for display from a database of documents stored in a memory, the selected document having a sequence of images; computing a gray scale image for each image in the sequence of images; defining a focal image in the sequence of images; displaying on the screen a first gray scale image representing the focal image, the first gray scale image being displayed at a first resolution; displaying on the screen a second gray scale image representing an image immediately following the focal image in the sequence of images, the second gray scale image being displayed at a second resolution, where the second resolution is less than the first resolution; and displaying on the screen nested sub-sets of images representing images in the sequence of images immediately following the second gray scale image, the nested sub-sets of images being displayed at resolutions less than the second resolution
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File Sharing 
