Hewlett-packard Development Company, L.P.

Microsoft Technology Licensing, LLC

Pelco, Inc.

Casey L Miller

Donald J Stavely

Gregory V Hofer

Mark E Wanger

James Clifford Anderson

James W Owens

Raymond Kirk Price

Michael Bleyer

Christopher Douglas Edmonds

Jeffrey M DiCarlo

Dan L Dalton

Andrew Clark Goris

Daniel Maack Bloom

David Kay Campbell

Benjamin D Kimbell

Scott A Woods

Richard Turley

Gary Joseph Dispoto

Greg Max Millar

Renato Keshet

Robert Paul Cazier

Timothy Louis Kohler

Steven Martin

Eric F Aas

Yu-Wei Wang

Kevin W Nay

Shu Yang

Steven Douglas Stoecker

Benjamin Brown

David Burks

Les Gehman

Tony T Di Croce

Jason A Heddings

Eric Montgomery

Steven D Martin

A method for enhancing digital imagery. The method comprises receiving a linear, intensity-based image of an environment. A histogram of intensity values is generated for a plurality of pixels within the linear, intensity-based image. Based on the histogram of intensity values, local contrast enhancement is applied to the linear, intensity-based image to generate a contrast enhanced version of the linear, intensity-based image, and artificial colorization is applied to the linear, intensity-based image to generate an artificially colorized version of the linear, intensity-based image. A composite image of the environment is then generated based on at least a portion of the contrast enhanced version of the linear, intensity-based image and at least a portion of the artificially colorized version of the linear, intensity-based image.

Contrast enhanced images composited with artificial colorization

A system for obtaining dark current images includes one or more processors and one or more hardware storage devices storing instructions that are executable by the one or more processors to configure the system to perform various acts. The acts include obtaining a first image frame, generating a first low-pass filtered image by applying a low-pass filter to the first image frame, and generating a first estimated dark current image by subtracting the first low-pass filtered image from the first image frame.

Systems and methods for obtaining dark current images

An example method for processing visual communications at a video camera according to the disclosure includes analyzing video content captured by the video camera to identify a visual command presented to the camera by a user in the field of view of the camera, executing the visual command identified from the video content captured by the video camera, wherein executing the visual command includes setting one or more operating parameters of the video camera, determining a command completion indication corresponding to whether the command was successfully executed, and providing a command completion indication, corresponding to the command completion indication, to the user.

Visual command processing

Imaging device analysis systems and imaging device analysis methods are described. According to one embodiment, an imaging device analysis system includes a light source configured to output light for use in analyzing at least one imaging component of an imaging device, wherein the imaging device is configured to generate images responsive to received light, and processing circuitry coupled with the light source and configured to control the light source to optically communicate the light to the imaging device, wherein the processing circuitry is further configured to access image data generated by the imaging device responsive to the reception, by the imaging device, of the light from the light source and to process the image data to analyze an operational status of the at least one imaging component.

Imaging device analysis systems and imaging device analysis methods

A system and method for stabilization of an image capture device are disclosed. Also disclosed are a system and method for autofocus of an image capture device.

System and method for image capture device

Systems and methods are disclosed for applying sketch effects to digital images. An exemplary method may comprise comparing an original image to a filtered image. The method may also comprise rendering changes in the filtered image as lines. The method may also comprise applying connected component labeling to lines in the filtered image to reduce noise. The method may also comprise rendering the filtered image with a sketch effect after reducing noise in the filtered image.

Sketch effect for digital photographs

The shutter of a digital imaging device may be calibrated by comparing a characteristic of two separate exposures obtained from a single field of the device's imaging sensor during a single exposure cycle. Calibrating the shutter in this manner facilitates the accuracy of even very short exposure times.

Digital imaging device shutter calibration method and apparatus using multiple exposures of a single field

In a method of digital image compression, the spatial frequency content of a digital image is characterized using a relatively sparse sampling of data blocks from the image, and a quantization table is constructed based on the characterization of the spatial frequency content.

Image-adaptive quantization for JPEG compression

A digital imaging device having a CCD sensor array with one or more fields captures both short and long exposures of a particular field during the capture of a single image frame. The short-exposure image data and the long-exposure image data from the particular field may be correlated to estimate motion within the image frame.

Method and apparatus for motion estimation in a digital imaging device

Imaging devices, such as digital cameras, scanners, displays and projectors, and related processing methods that implement calibration and post-capture image processing that quickly and accurately corrects image quality resulting from lens and CCD imperfections using a minimum amount of computation and memory storage space.

Lens and CCD correction using singular value decomposition

A camera has a motion detector and a sensor with a plurality of pixels. Each pixel includes shift transistors to shift charge between pixels as a function of motion sensed by the motion detector.

Camera sensor

A low frequency value for a pixel value is adjusted by a desired gain. A first high frequency value for the pixel value is calculated. A second high frequency value is generated for the first high frequency value. The second high frequency value is the first high frequency value adjusted by a factor. The factor is resolved as a function of the first high frequency value and the desired gain. A modified value for the pixel value is outputted, where the modified value is the adjusted low frequency value augmented by the second high frequency value.

Adjusting pixels by desired gains and factors

A method of processing a mosaic digital image includes simultaneously performing edge-sensitive denoising and color interpolation on a first color plane of the digital image. The interpolation fills in missing pixel information in the first color plane.

Edge-sensitive denoising and color interpolation of digital images

Ambient light analysis methods, imaging devices, and articles of manufacture are described. According to one aspect, an ambient light analysis method includes emitting light using a source, first filtering the light of the source providing first filtered light, first receiving the first filtered light using an imaging device, providing a first response of the imaging device to the first filtered light, second filtering ambient light providing second filtered light, second receiving the second filtered light using the imaging device, providing a second response of the imaging device to the second filtered light, and determining information regarding a spectral power distribution of the ambient light using the first response and the second response.

Growing community of inventors

Fort Collins, CO, United States of America

Casey L Miller