Hewlett-packard Development Company, L.p.

Other

Niranjan Damera-Venkata

Nelson Liang An Chang

Daniel R Tretter

Simon Widdowson

William James Allen

Robert Alan Ulichney

Jonathan Yen

Richard E Aufranc, Jr

Debargha Mukherjee

Suk Hwan Lim

D Amnon Silverstein

Qian Lin

Jerry J Liu

Ron Maurer

Laurence Meade Hubby, Jr

Eamonn O'Brien-Strain

Ken Kengkuan Lin

Clayton Atkins

Mei Chen

Ildus Ahmadullin

Arun Kumar Paruchuri

David Joel Wu

Eamann O'Brien-Strain

A probabilistic content layout model generates pages. Each of a number of compositions flows over multiple of the pages, and one or more of the pages each has multiple breakpoints. Each breakpoint is defined in relation to a given composition, such that the breakpoint breaks the given composition on the page that includes the breakpoint and such that the given composition continues on, a subsequent page.

Hierarchical probabilistic document model based document composition

One or more text blocks, one or more images, and one or more contextual advertisements related to the text blocks are input into a mixed-content page layout model. One or more pages are generated by the mixed-content page layout model such that the text blocks, the images, and the contextual advertisements are displayed on the pages. For each contextual advertisement, a dynamic weight to a particular text block is determined. The mixed-content page layout model uses the dynamic weight for a contextual advertisement in determining where the advertisement is displayed within the pages in relation to the particular text block.

Contextual advertisements within mixed-content page layout model

Defining a display region for a projector display. An image of a camera's view of a display region is accessed. The image is displayed on a graphical user interface. The image has a first set of coordinates. The image and a reference canvas that is displayed on said graphical user interface is integrated. The integration comprises overlaying a portion of the reference canvas on the image. The reference canvas has a second set of coordinates. One of the first set of coordinates and the second set of coordinates represents a mesh of movable control points being movable from a first location to a second location on the graphical user interface. The first set of coordinates are mapped to the second set of coordinates, thereby generating a pointwise correspondence mapping between coordinate points of the reference canvas and coordinate points of the image.

Defining a projector display region

A graphical user interfacethat includes a template design area is displayed. Based on one or more commands received through the graphical user interface, a layout of template elements (-) is arranged with respective relative positions and sizes in the template design area (), where at least one of the template elements (-) is designated for receiving variable document content. Through the graphical user interface, values of parameters characterizing one or more associated adaptive layout variables that constrain adaptability of respective ones of the template elements (-) to different document contentare received. At least one of the parameters characterizes a degree of variability of the associated adaptive layout variable. The relative positions of the template elements (-) are encoded in the template design area in association with the respective parameter values in a variable document template data structure ().

Generating variable document templates

A method including modifying at least a first pixel value in a first portion of a first image frame to create a first difference between the first pixel value in the first image and a first pixel value in a first portion of a second image frame that, at least in part, represents a first code and providing the first image frame and the second image frame to a display device for display at different times is provided.

System and method for coding image frames

Examples disclose an apparatus comprising a processor to determine probabilities based on both a variable range of pages in a layout and a variable range of length of content in the layout. Additionally, the examples disclose the processor is further to identify a maximum probability from the determined probabilities. Also, the examples disclose the processor is further to identify values for a number of pages and a length of content associated with the maximum probability for determination of where to crop content in the layout.

Determination of where to crop content in a layout

Example pages in which text and graphics have been laid out using a mixed text-and-graphics layout template are received from a user. Hyper parameters of a probabilistic model for the mixed text-and-graphics layout template are optimized, based on the example pages.

Optimizing hyper parameters of probabilistic model for mixed text-and-graphics layout template

A method of generating a halftone screen includes growing clusters according to at least one linear filter based on a spatial probability profile function. The clusters can be grown with filters that are parameterized according to gray level.

AM-FM halftone screen design

A method performed by a display system is provided. The method includes projecting a first infrared pattern from a first projection plane of a first projector into a scene, capturing the first infrared pattern from the scene in a capture plane of at least one image capture device, and determining a first correspondence mapping between the first projector and the image capture device from at least the first infrared pattern in the first projection plane and the first infrared pattern in the capture plane.

Determining correspondence mappings from infrared patterns projected during the projection of visual content

A method for compensating for cross-talk in a 3-D projector-camera system having a controller including a processor and system memory and at least two channels, includes the steps of calibrating the projector-camera system, computing cross-talk factors applicable to the projector-camera system, and correcting new image data for cross-talk based upon the computed cross-talk factors. The system is calibrated by sequentially projecting and capturing, with a camera, a calibration image for each channel, to capture cross-talk between the channels. The controller can compute the cross-talk factors based upon the captured calibration images.

Method for compensating for cross-talk in 3-D display

A method for automatic delivery of consistent imagery in a multi-projector system includes the steps of dividing the projectors into a plurality of sub-groups of projectors, each projector oriented to project a sub-frame to a sub-group display location, and adjusting the output of each projector in each sub-group to provide selected target display characteristics across all sub-groups.

Multi-projector system and method

A method of displaying an image with a display device having at least one defective display pixel is provided. The method comprises generating first, second, and third sub-frames using image data for the image, information that identifies the at least one defective display pixel, a first pixel offset associated with the second sub-frame, and a sub-pixel offset associated with the third sub-frame, and alternating between displaying the first sub-frame in a first position, displaying the second sub-frame in a second position spatially offset from the first position according to the first pixel offset, and displaying the third sub-frame in a third position spatially offset from the first position and the second position according to the sub-pixel offset.

System and method for correcting defective pixels of a display device

A method for locating line breaks in text, carried out by a computer device having a processor and system memory, includes the steps of creating a probabilistic model of a paragraph of text, parameterized by inter-word spacing, and running an inference on the model to find a sequence of line-breaks that maximize the joint probability of line break positions with minimum deviation of inter-word spacing from an ideal value.

Method for locating line breaks in text

A system and method are provided for determining a color palette model from an image of a document. Pixel values of the image of the document are clustered to provide image clusters. Color layers of the image are determined, each color layer corresponding to an image cluster. Aspects of the color palette model can be determined using the color layers. Aspects of the color palette model include a foreground-background color pair for a content block in the document and a background-area color of the document.

Extraction of a color palette model from an image of a document

Error diffusion halftoning includes using a quantizer having an input and an output; and using a system having a bandpass characteristic to modify the quantizer input without feeding the quantizer output directly into the quantizer input. The error diffusion halftoning can produce clustered pixel halftone patterns that can be reliably reproduced by laser printers and other electro-photographic devices.

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Mountain View, CA, United States of America

Niranjan Damera-Venkata