Sharp Laboratories of America, Inc

Other

C-tonomy, LLC

Sharp Kabushiki Kaisha Corporation

John Edward Dolan

Ahmet Mufit Ferman

Richard John Campbell

Toyohisa Matsuda

Jon Matthew Speigle

John Charles Dalrymple

Lawrence Shao-hsien Chen

Dana Smith

Basil Isaiah Jesudason

Stephen Ellis

Stephen W Ellis

Xiao-Fan Feng

James Zhixin Chang

Burton Lee Levin

A Mufit Ferman

A surveillance duo that includes a pod and a rover.

Autonomous surveillance duo

Aspects of the present invention are related to systems, methods and apparatus for digital-marking-surface spatial management of content units and display of content units. Some aspects relate to diagrammatic gestures that invoke content-unit spatial separation on a digital marking surface. Some aspects relate to the generation and display of a transformed view of content units on a digital marking surface.

Digital-marking-surface space and display management

Aspects of the present invention are related to systems, methods and apparatus for providing a compact, yet informative, representation of meeting content.

Methods, systems and apparatus for summarizing a meeting

Aspects of the present invention are related to systems and methods for automatically determining the content boundaries in a digital image. A gradient field may be generated using an edge detector, and the gradient field may be thresholded, by magnitude, to retain strong edges. The resulting localized edge positions may be projected onto a first direction and a second direction to form two projection histograms. The projection histograms may be analyzed to determine the boundaries of the image content. Corners of a cropping rectangle may be computed, and the digital image may be cropped according to the content boundaries.

Methods and systems for content-boundary detection

Methods, systems and apparatus for digital-marking-surface space and display management

Aspects of the present invention are related to systems and methods for determining a skew angle associated with a document image. According to a first aspect of the present invention, a rotation vector may be estimated for at least one layer in a vertical-edge buffer and a horizontal-edge buffer. According to a second aspect of the present invention, a rotation vector may be estimated directly from the vertical-edge buffer and the horizontal-edge buffer using a fixed-sized, progressively constrained histogram.

Methods and systems for estimation of document skew in an image

Aspects of the present invention are related to systems and methods for automatic content-boundary detection in a digital image. According to one aspect of the present invention a received image may be preconditioned to form a normalized image from which image-content edges may be detected. Projection histograms in the direction of a known skew angle associated with the image and the normal to the skew angle may be formed to determine image-content boundaries.

Methods and systems for automatic content-boundary detection

Aspects of the present invention relate to systems and methods for refining text color in a digital image. A pixel of interest from a first plurality of pixels in a digital image may be selected, and the first plurality of pixels may be separated into a second plurality of pixels and a third plurality of pixels based on the color value of the pixel of interest. A refinement color value may be calculated based on the second plurality of pixels when the second plurality of pixels meets a quantity threshold. When the second plurality of pixels does not meet the quantity threshold, the refinement color value may be calculated based on the third plurality of pixels. The refinement color value may be assigned to the pixel of interest.

Methods and systems for refining text color in a digital image

Embodiments of the present invention comprise methods and systems for digital image color balance correction.

Methods and systems for improving robustness of color balance correction

Embodiments of the present invention comprise methods and systems for image complexity estimation and selective complexity-based image processing.

Methods and systems for alternative, complexity-based process selection

Aspects of the present invention comprise systems and methods for image illuminant estimation. Some aspects relate to computing an image histogram comprising data relating the frequency of image element color values to color values found under said candidate illuminants, determining match scores for the plurality of candidate illuminants, determining a minimum match score of the match scores and determining minimum match score chromaticity coordinates. Some aspects relate to fitting a surface to the match scores wherein the surface represents illuminant parameter values other than the candidate illuminants, solving for an extremum of the surface and determining chromaticity coordinates of the extremum. Some aspects relate to selecting estimated image illuminant coordinates based on the relative location of the coordinates of one of the candidate illuminants, the coordinates of the extremum and/or the minimum match score chromaticity coordinates.

Systems and methods for illuminant estimation

Embodiments of the present invention comprise methods and systems for descreening a digital image.

Methods and systems for descreening a digital image

The present application discloses a system for determining document boundaries inc1uding an image sensor, a backing opposed to the sensor, and an image processor. The image processor analyzes candidate edges imaged from a document between the sensor and the backing. The image processor determines which candidate edges are document boundaries.

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Vancouver, WA, United States of America

John Edward Dolan