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Patent

Digital quaternion logarithm signal processing system and method for images and other data types

V John J. Kolb, +1 more
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TLDR
In this paper, a method for improving the detail of an input digital signal, such as a signal comprising a two-dimensional image, can be implemented by computing first and second order gradients of the input signal.
Abstract: 
A system and method for improving the detail of an input digital signal, such as a signal comprising a two dimensional image, can be implemented by computing first and second order gradients of the input signal. These gradients can be represented as quaternions. The logarithm of the quaternions can be used to determine the magnitude and orientation of gradient vectors in the input signal. This gradient magnitude and gradient orientation information can be used to construct an output digital signal that has greater detail than the input digital signal.

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Patent

Computer vision for ambient data acquisition

William Glaser, +1 more
TL;DR: A system and method for extracting uncoupled information from a user interface output that includes collecting image data, processing the image data associated with the device interface source, and exposing the result to the extracted interface representation is described in this article.
Patent

Linked observed human activity on video to a user account

William Glaser, +1 more
TL;DR: In this article, a system and method for linking observed human activity on video to a user account of a preferred embodiment that includes: through a computer vision monitoring system, detecting and tracking a human as a computer-vision modeled person within an environment, the computer vision monitor being part of a computing platform managing a user interaction experience; through at least one associative mechanism, establishing an association between the model and the user-record, and thereby associating the model with the user record.
Patent

Tilt-shift correction for camera arrays

Glaser William, +1 more
TL;DR: An imaging system comprising of a set of cameras, the cameras having a configured relative camera arrangement, and each camera of the set of camera comprising at least one corrective optical system is described in this article.
Patent

Multiple-factor verification for vision-based systems

William Glaser, +1 more
TL;DR: In this paper, the authors present a system and method for interaction monitoring in a retail environment that includes executing a first monitoring system and thereby generating a first evaluation of customer selection of items; executing a second monitoring system, and determining monitoring alignment between the first evaluation and the second evaluation of a first customer; and triggering an action in response to the monitoring alignment.
Patent

Computer vision system and method for automatic checkout

William Glaser, +1 more
TL;DR: In this paper, a system and method for computer vision driven applications in an environment that can include collecting image data across an environment; maintaining an environmental object graph from the image data, whereby maintaining the environmental object graphs is an iterative process that includes: classifying objects, tracking object locations, detecting interaction events, instantiating object associations in the environment, and updating the environment object graph by propagating change in at least one object instance across object associations.
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Patent

Computer interface employing a manipulated object with absolute pose detection component and a display

Michael J. Mandella, +2 more
TL;DR: In this article, the authors present a system that has a remote control, equipped with a relative motion sensor that outputs data indicative of a change in position of the wand, which includes the absolute position of a reference point chosen on the wand and the absolute orientation.
Proceedings ArticleDOI

Riesz pyramids for fast phase-based video magnification

Neal Wadhwa, +3 more
TL;DR: A new compact image pyramid representation, the Riesz pyramid, that can be used for real-time phase-based motion magnification and is less overcomplete than even the smallest two orientation, octave-bandwidth complex steerable pyramid, and can be implemented using compact, efficient linear filters in the spatial domain.
Patent

Media integration layer

Subramanian Sriram, +11 more
TL;DR: In this paper, a media integration layer including an application programming interface (API) and an object model allows program code developers to interface in a consistent manner with a scene graph data structure in order to output graphics.
Patent

Systems and methods for quantitative analysis of histopathology images using multiclassifier ensemble schemes

Sos S. Agaian, +2 more
TL;DR: In this paper, a multi-stage detection and classification of cancer regions from digitized images of biopsy slides is described, including the use of quaternions, logarithmic mappings of color channels, and application of wavelets to log-rithmic color channel mappings.
Patent

Method for rendering graphical objects represented as surface elements

Collin E. Oosterbaan, +2 more
TL;DR: In this paper, a surface of an object is partitioned into a plurality of cells having a grid resolution related to an image plane resolution, and attributes of the portion of the object contained in the cell are assinged to each surface element and each link.