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Digimarc Corporation patents (2015 archive)


Recent patent applications related to Digimarc Corporation. Digimarc Corporation is listed as an Agent/Assignee. Note: Digimarc Corporation may have other listings under different names/spellings. We're not affiliated with Digimarc Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "D" | Digimarc Corporation-related inventors


12/31/15 / #20150380003

Mobile device indoor navigation

An audio playback system receives digitally watermarked audio programming and distributes it to audio speakers in a venue, enabling a variety of location and product dependent services to be delivered to mobile devices in the venue. Mobile devices sense audio from speakers and decode digital identifying information, including characteristics to distinguish audio sources. ... Digimarc Corporation

12/31/15 / #20150379139

Internet and database searching with handheld devices

The presently claimed invention relates to network searching and handheld devices. One claim recites a method including: from a first wireless device, wirelessly communicating with a second wireless device to determine whether the second wireless device has performed an internet or database search; receiving, at the first wireless device, information from the second wireless device regarding the internet or database search, if the information satisfies predetermined criteria on the first wireless device, requesting from the second wireless device at least a subset of results obtained from the internet or database search. ... Digimarc Corporation

12/10/15 / #20150358525

Methods and systems for content processing

Disclosed are technologies are useful in enabling a smart phone to respond to a user's environment, e.g., so it can serve as an intuitive hearing and seeing device. Some of the detailed arrangements involve using radio base station sdr equipment (e.g., at a cell tower) to perform image recognition operations for phones; forecasting service needs from remote processors delegating a remote execution task to a service provider chosen in a competitive process; using nearby processors, e.g., in an automobile, another phone, or set-top box, for remote execution tasks; phones with separable camera and/or illumination components; phone camera illumination using different colors of light; using search tree methods with image frames captured at different focuses; using a phone's microprojector to aid in object identification; correcting lens aberrations by texture mapping captured imagery onto a corrective polygon surface using a phone gpu; etc. ... Digimarc Corporation

12/03/15 / #20150350532

Next generation imaging methods and systems

Novel imaging arrangements are detailed. One comprises an optical array sensor with plural photo-electron generating regions dispersed at two or more layers in the structure. ... Digimarc Corporation

11/26/15 / #20150341893

Mobile device positioning in dynamic groupings of communication devices

A wi-fi based mobile positioning system determines mobile device positioning by count stamped packets communicated between the mobile device and access points according to a standard wifi protocol. Ad-hoc groups of wifi network nodes are formed and then broken with a mobile device as that mobile devices moves relative to fixed nodes, such as access points. ... Digimarc Corporation

10/29/15 / #20150310601

Methods and arrangements for identifying objects

In some arrangements, product packaging is digitally watermarked over most of its extent to facilitate high-throughput item identification at retail checkouts. Imagery captured by conventional or plenoptic cameras can be processed (e.g., by gpus) to derive several different perspective-transformed views—further minimizing the need to manually reposition items for identification. ... Digimarc Corporation

10/29/15 / #20150310576

Steganographic encoding and decoding

This patent document relates generally to steganography and digital watermarking. One claim recites an apparatus comprising: memory for storing data representing an image or video, in which the data comprises first data corresponding to first color data, second data corresponding to second color data and third data corresponding to third color data, the image or video to host auxiliary information; a processor programmed for: weighting the first data, the second data and the third data according to at least the following two factors: i) a color direction associated with an expected embedding direction; and ii) expected image capture or signal processing; and determining from weighted first data, weighted second data and weighted third data, changes in one or more image or video attribute(s), in which the auxiliary information is conveyed through the changes. ... Digimarc Corporation

10/22/15 / #20150304797

Methods and systems for content processing

Mobile phones and other portable devices are equipped with a variety of technologies by which existing functionality can be improved, and new functionality can be provided. Some aspects relate to visual search capabilities, and determining appropriate actions responsive to different image inputs. ... Digimarc Corporation

10/22/15 / #20150304479

Methods and systems for accessing a computer resource over a network via microphone-captured audio

The disclosure relates to accessing computer resources by sensing audio with a microphone. One claim recites a system comprising: means for decoding identifying data from microphone-captured encoded audio, the microphone-captured audio captured by a microphone of a wireless device; means for obtaining device information for a class of devices associated with the wireless device; means for controlling communication of the identifying data and the device information; and means for controlling a user interface to provide access to a computer resource based on a service received in response to communication of the identifying data and the device information, in which the service is configured to provide access in response to audio prompting, and in which access of the wireless device is directed according to the service, and means for directing access of the wireless device according to the service; and a network resource comprising means for storing, the means for storing providing a correlation between identifying data, device information and response information, the network resource further comprising means for providing the service including providing the response information, the response information being associated with the identifying data and the device information. ... Digimarc Corporation

10/22/15 / #20150302886

Determination of originality of content

Making a determination of originality of content is disclosed. At least one originality factor related to the content is analyzed, wherein the originality factor is independent of a time when the content is detected. ... Digimarc Corporation

10/22/15 / #20150302543

Methods for encoding, decoding and interpreting auxiliary data in media signals

The disclosure relates to digital watermarking, steganography, and specifically to message coding protocols used in conjunction with digital watermarking and steganographic encoding/decoding and payload interpretation methods. One claim recites a method for interpreting a data structure having fixed and variable message portions, the method comprising: processing the fixed message portion to determine a version of the variable message portion; decoding the entire payload field of the variable message portion according to the determined version; and interpreting only a portion of the decoded payload field according to the determined version. ... Digimarc Corporation

10/01/15 / #20150278980

Screen watermarking methods and arrangements

In an exemplary embodiment, image content is rendered to include a digital watermark pattern at an essentially fixed scale, regardless of the size of screen on which the content is displayed. In one particular embodiment, css and javascript are responsive to the rendering context (which can include screen size, and/or viewer position) to define the geometry of a watermarked texture block, which is tiled to serve as a background of an html-defined page. ... Digimarc Corporation

09/17/15 / #20150262364

Determining proximity of a mobile device to a subject based on shadow analysis

Portions of the disclosure relate generally to shadow analysis, e.g., on mobile platforms. One claim recites a mobile phone comprising: a camera for capturing images and video; memory for buffering captured images and video; means for identifying a shadow cast by the mobile phone on a subject being imaged by said camera by analyzing buffered captured images and video; and means for determining proximity to the subject based on an analysis of the shadow. ... Digimarc Corporation

09/17/15 / #20150261594

Self-stabilizing network nodes in mobile discovery system

The disclosure relates to cloud-based mobile discovery networks. For example, a mobile discovery network may include a network responsive to successful watermark detection or fingerprint extraction. ... Digimarc Corporation

08/27/15 / #20150245090

Media processing methods and arrangements

The present technology concerns cell phones and other portable devices, and more particularly concerns use of such devices in connection with media content (electronic and physical) and with other systems (e.g., televisions, digital video recorders, and electronic program directories). One particular aspect of the technology concerns complementing primary content viewed on one screen (e.g., a television screen) with auxiliary content displayed on a second screen (e.g., a cell phone screen). ... Digimarc Corporation

08/27/15 / #20150244850

Intuitive computing methods and systems

A portable computing device (e.g., a tablet or smartphone) senses audio and/or imagery from a user's environment, and acts to fulfill inferred or requested user desires. In one arrangement, a portable tablet computing device comprising: a wireless communications interface; a touch screen display; a camera for capturing video imagery; a microphone for capturing audio; a device input for initiating a discovery mode, in which the discovery mode includes processing camera-captured video imagery or microphone-captured audio to obtain identification of an object depicted in camera-captured video imagery or to obtain identification of microphone-captured audio, an identification obtained through the wireless communications interface; one or more multi-core processors; and memory storing software instructions for configuring said one or more multi-core processors for: responsive to a request received via said device input, initiating a discovery mode including processing real-time video imagery captured with said camera; causing a sensor pane to be displayed on said touch screen display, in which real-time captured video imagery is displayed along with augmented reality graphics within the sensor pane, and causing user-selectable graphic icons to be displayed within a first area of said touch screen display; causing highlighting of an object represented in captured real-time video imagery that is displayed within the sensor pane; and causing a user-selectable graphic icon to be displayed on said touch screen display to facilitate switching discovery modes from image to audio. ... Digimarc Corporation

08/27/15 / #20150242985

Assessment of camera phone distortion for digital watermarking

The present disclosure relates generally to cell phones and cameras, and to digital watermarking involving such cell phones and cameras. One claim recites a method comprising: measuring distortion introduced by a cell phone camera; using a programmed electronic processor, quantifying the distortion; and providing quantified distortion as feedback to adjust a digital watermark embedding process in view of the distortion introduced by the cell phone camera. ... Digimarc Corporation

08/27/15 / #20150242981

Extending watermark detection distortion tolerances

The present disclosures relates generally to digital watermarking and data hiding. One claim recites a smartphone comprising: a camera to capture video of a display that is rendering video, in which the video comprises a first watermark signal embedded in a first portion of the data, a second watermark signal embedded in a second portion of the data, and a third watermark signal embedded in a third portion of the data, in which at least two of the first watermark signal, second watermark signal and third watermark signal are inversely related to one another; electronic memory for buffering data representing captured video; one or more electronic processors programmed for: applying a first perspective distortion to the data representing the captured video to yield first perspective distorted video; and analyzing the first perspective distorted video to detect digital watermarking, in which a second perspective distortion is applied to the data representing the captured video to yield second perspective distorted video when the analyzing does not detect digital watermarking, and then performing analyzing the second perspective distorted video to detect digital watermarking. ... Digimarc Corporation

08/27/15 / #20150242120

Data input peripherals and methods

A smart watch is equipped with a sensor array adapted to allow the watch (including the watchband) to serve as a text entry device, in lieu of a conventional qwerty keyboard. A variety of other features and arrangements are also detailed.. ... Digimarc Corporation

08/13/15 / #20150227925

Methods and arrangements for smartphone payments and transactions

The disclosure relates to digital signal processing such as digital watermarking, and the utilization of portable devices for such signal processing. One claim recites a portable device comprising a touch screen display; memory for storing a payload, and for storing portions of imagery; means for processing the payload with an erasure code generator, in which the erasure code generator produces a plurality of outputs corresponding to the payload; means for embedding a first of the plurality of outputs in a first portion of the imagery and proceeding with embedding until each of the plurality of outputs is embedded in portions of the imagery; and means for causing the touch screen display to display embedded portions of imagery so that a digital watermark reader analyzing captured image data representing the touch screen display can recover the payload. ... Digimarc Corporation

08/13/15 / #20150227922

Methods and arrangements for smartphone payments and transactions

The disclosure relates to a smartphone-based virtual wallet, that manages payment options available to a user. One claim recites a portable device comprising: a touch screen display; a microphone for capturing ambient audio; memory for storing an image; and one or more processors. ... Digimarc Corporation

07/30/15 / #20150215295

Shared secret arrangements and optical data transfer

Digital data is optically broadcast through an environment by controllably switching the brightness or chrominance of led solid state lamps, or of other illumination sources (e.g., television screens and backlit computer displays). This optical data channel is useful to convey cryptographic key data by which devices within the environment can authenticate themselves to a secure network. ... Digimarc Corporation

07/23/15 / #20150206268

Digital watermarking methods, apparatus and systems

The present invention relate generally to digital watermarking and data hiding. One claim recites a method including: obtaining first data and second color data, the first color data and the second color data represent data from a color image signal or color video signal; obtaining a digital watermark pattern, the pattern aiding detection of a watermark message; separating the digital watermark pattern into first frequency components and second frequency components; utilizing a programmed electronic processor or electronic processing circuitry, modifying the first color data by hiding the first frequency components therein; and utilizing a programmed electronic processor or electronic processing circuitry, modifying the second color data by hiding the second frequency components therein. ... Digimarc Corporation

07/23/15 / #20150205877

Rules driven pan id metadata routing system and network

Content objects are associated with metadata via content identifiers that are derived from sensed signals captured by requesting mobile devices. In response to a content based query from a mobile device, content fingerprints and extracted digital codes decoded from the sensed signals are issued to a network based router system. ... Digimarc Corporation

07/02/15 / #20150187039

Full-color visibility model using csf which varies spatially with local luminance

The present disclosure relate generally to color science and digital watermarking. A full color visibility model has been developed which has good correlation to subjective visibility tests for color patches degraded with a watermark. ... Digimarc Corporation

06/25/15 / #20150181399

Intuitive computing methods and systems

The present disclosure relates generally to mobile devices and content recognition. One claim recites a mobile device comprising: a sensor; a display screen; memory storing instructions for execution by a processor; and one or more processors programmed with said instructions for: obtaining information from the sensor; selecting a user profile from among a plurality of different user profiles based on the information; and selecting—based on a selected user profile—an image or graphic for display on the display screen, the image or graphic being associated with the selected user profile. ... Digimarc Corporation

06/18/15 / #20150168538

Mobile device indoor navigation

Mobile device positioning employs various forms of audio signal structures and detection methodologies. In one method, detection of an audio signal from a first source enables construction of a signal to facilitate detection of an audio signal from another source. ... Digimarc Corporation

06/11/15 / #20150163345

Smartphone-based methods and systems

Arrangements involving portable devices (e.g., smartphones and tablet computers) are disclosed. One arrangement includes a smartphone comprising: a touchscreen display; a camera for capturing image data; a microphone for capturing audio data; memory for storing software instructions; and one or more processors programmed with said software instructions. ... Digimarc Corporation

06/11/15 / #20150162013

Combined watermarking and fingerprinting

Content fingerprints and watermarks are combined in various ways for content identification applications. Fingerprints are used to identify content generally while watermarks provide more detailed localization of parts within the content, and vice versa. ... Digimarc Corporation

06/04/15 / #20150156384

Methods and arrangements for processing image data

The present disclosure provides methods and systems for processing data. One claim recites a camera-equipped portable computer system, comprising: a camera; one or more processors programed for: i) controlling the camera to capture image data, the captured image data corresponding to the camera's field of view; ii) defining a sub-region comprising image data within the field of view, the sub-region comprising less image data than does the full field of view; and iii) searching image data within the field of view for hidden keys, but limiting a response to detected keys to those only found within the sub-region. ... Digimarc Corporation

06/04/15 / #20150156369

Data hiding for spot colors in product packaging

The present disclosure relates generally to data hiding for product packaging and other printed objects. One embodiment embeds an information signal in a spot color for product packaging. ... Digimarc Corporation

06/04/15 / #20150156368

Steganographic encoding and decoding

This patent document relates generally to steganography and digital watermarking. One claim recites an apparatus comprising: electronic memory for buffering samples corresponding to imagery; and a programmed processor. ... Digimarc Corporation

06/04/15 / #20150154724

Hierarchical watermark detector

The present invention relates generally to digital watermarking. In one implementation, we provide a hierarchical digital watermark detector method. ... Digimarc Corporation

06/04/15 / #20150154231

Metadata management and generation using perceptual features

The present invention provides methods and systems to improve network searching for watermarked content. In some implementations we employ keyword searching to narrow the universe of possible url candidates. ... Digimarc Corporation

05/21/15 / #20150142618

Smartphone-based methods and systems

Methods and arrangements involving portable devices, such as smartphones and tablet computers, are disclosed. Exemplary arrangements utilize the camera portions of such devices to identify nearby subjects, and take actions based thereon. ... Digimarc Corporation

04/23/15 / #20150110341

Reducing watermark perceptibility and extending detection distortion tolerances

The present disclosures relates generally to digital watermarking and data hiding. One claim recites an apparatus comprising: means for storing a watermark signal; means for embedding a watermark signal in a first portion of a video signal; means for preconditioning the watermark signal in a first manner to allow expanded detection of said preconditioned watermark signal in the presence of first distortion; means for embedding the watermark signal preconditioned in the first manner in a second portion of the video signal; means for preconditioning the watermark signal in a second manner to allow expanded detection of said preconditioned watermark signal in the presence of second distortion; and means for embedding the watermark signal preconditioned in the second manner in a third portion of the video signal. ... Digimarc Corporation

04/16/15 / #20150106416

Signal processors and methods for estimating transformations between signals with phase estimation

A phase estimation method estimates the phase of signal components using a point spread function. The method obtains a point spread function that expresses complex frequencies at a non integer location in terms of integral frequencies, for a complex frequency of a signal at a non integer location in a complex frequency domain. ... Digimarc Corporation

04/16/15 / #20150106389

Methods for identifying audio or video content

The disclosed technology generally relates to methods for identifying audio and video entertainment content. One claim recites a method comprising: receiving data representing audio uploaded to a network server, the audio having been transformed prior to receipt; analyzing the data representing audio with a fingerprint generator to yield fingerprint data; determining whether the fingerprint data incurs a potential match in a fingerprint data repository, the potential match indicating an unreliability in the match below a predetermined threshold; upon a condition of unreliability in the match, and via an application program interface, issuing a call requesting at least a first reviewer and a second reviewer to review the data representing audio; receiving results from the first reviewer and results from the second reviewer through the application program interface; weighting results from the first reviewer differently than results from the second reviewer in determining whether to allow public access to the data representing audio. ... Digimarc Corporation

04/16/15 / #20150105111

Context-related arrangements

In one arrangement, a first device presents a display that is based on context data, derived from one or more of its sensors. This display is imaged by a camera in a second device. ... Digimarc Corporation

04/16/15 / #20150104058

Image-related methods and systems

Digital watermark encoding—and associated registry transactions—are made transparent to consumers—performed as built-in features of common image processing operations, such as taking a picture, or printing a picture. In one arrangement, a user particularly defines network experiences that a hardcopy image is to invoke. ... Digimarc Corporation

03/19/15 / #20150080060

Mobile devices and methods employing haptics

A variety of haptic improvements useful in mobile devices are detailed. In one, a smartphone captures image data from a physical object, and discerns an object identifier from the imagery (e.g., using watermark, barcode, or fingerprint techniques). ... Digimarc Corporation

03/12/15 / #20150074748

Content monitoring and host compliance evaluation

Evaluating content is disclosed. Evaluating includes determining a host policy associated with one or more host policy rules, wherein the host policy specifies one or more conditions under which the content may be hosted, automatically assessing compliance with the one or more host policy rules based at least in part on a context associated with the use of the content, and combining the compliance assessments to make a compliance evaluation.. ... Digimarc Corporation

03/12/15 / #20150072728

Smartphone-based methods and systems

One arrangement concerns a portable device (e.g., a smartphone) that executes plural recognition agents, such as agents that perform fingerprint-based object recognition, fingerprint-based audio recognition, barcode reading, watermark decoding, etc. Each of the agents reads from and writes to a blackboard data structure, to which camera and microphone sensors also post their data. ... Digimarc Corporation

03/12/15 / #20150071565

Signal processors and methods for estimating transformations between signals with phase deviation

A phase deviation method determines an offset between a reference and suspect signal by analyzing a phase deviation surface created by computing a deviation metric for phase shift and then analyzing a surface formed from the deviation metrics for an array of offsets. The phase deviation method analyzes the deviation surface to determine an offset that minimizes phase deviation. ... Digimarc Corporation

03/12/15 / #20150071486

Sensing data from physical objects

Directional albedo of a particular article, such as an identity card, is measured and stored. When the article is later presented, it can be confirmed to be the same particular article by re-measuring the albedo function, and checking for correspondence against the earlier-stored data. ... Digimarc Corporation

03/12/15 / #20150071485

Information coding and decoding in spectral differences

Information is encoded in an image signal by exploiting spectral differences between colors that appear the same when rendered. These spectral differences are detected using image sensing that discerns the spectral differences. ... Digimarc Corporation

03/12/15 / #20150071484

Steganographic encoding and decoding

This patent document relates generally to steganography and digital watermarking. One claim recites, a method of encoding auxiliary information in an image or video. ... Digimarc Corporation

02/26/15 / #20150055855

Learning systems and methods

A sequence of images depicting an object is captured, e.g., by a camera at a point-of-sale terminal in a retail store. The object is identified, such as by a barcode or watermark that is detected from one or more of the images. ... Digimarc Corporation

02/26/15 / #20150055837

Detection of weak specks from imagery

Discerning small, weak features (“specks”) from imagery can be critical in early-stage cancer detection and other applications. In one aspect, the presence of a speck is judged from a large set of “votes” about whether a point in the imagery has a value above or below its neighbors. ... Digimarc Corporation

02/12/15 / #20150043890

Mobile media, devices, and signaling

Consumer uses of mobile devices and electronic media are changing. Mobile devices include increased computational capabilities, mobile broadband access, better integrated sensors, and higher resolution screens. ... Digimarc Corporation

01/29/15 / #20150030201

Feature-based watermark localization in digital capture systems

The present disclosures relates generally to digital watermarking and data hiding. One claim recites a method comprising: obtaining data representing captured imagery, the captured imagery depicting packaging including digital watermarking, the digital watermarking including an orientation signal that is detectable in a transform domain; generating a n-dimensional feature set of the data representing captured imagery, the n-dimensional feature set representing the captured imagery in a spatial domain, where n is an integer great than 13; using a trained classifier to predict the presence of the orientation signal in a transform domain from the feature set in the spatial domain. ... Digimarc Corporation

01/22/15 / #20150024800

Intuitive computing methods and systems

A smart phone senses audio and/or imagery from a surrounding environment, and acts to provide graphical user interfaces and toggling discovery modes. In one arrangement, a smart phone comprises: a wireless communications interface; a touch screen display; a camera for capturing imagery; a microphone for capturing audio; a physical discovery button for initiating a discovery mode, in which the discovery mode includes processing smart phone sensor-captured imagery or sensor-captured audio to obtain identification of an object depicted in sensor-captured imagery or of captured audio, the identification obtained through the wireless communications interface; one or more processors; and memory storing software instructions for configuring said one or more processors for: responsive to a request received via the physical discovery button, initiating a discovery mode including processing imagery captured with said camera; causing a sensor pane to be displayed on the touch screen display, in which captured imagery is displayed along with augmented reality graphics within the sensor pane, and causing user-selectable graphic icons to be displayed within a first area of the touch screen display; highlighting an object represented in captured imagery that is displayed within the sensor pane; and causing a user-selectable graphic icon to be displayed on the touch screen display to facilitate switching discovery modes from image to audio. ... Digimarc Corporation

01/22/15 / #20150022675

Image processing architectures and methods

Cell phones and other portable devices are equipped with a variety of technologies by which existing functionality is improved, and new functionality is provided. Some aspects relate to imaging architectures, in which a cell phone's image sensor is one in a chain of stages that successively act on instructions/data, to capture and later process imagery. ... Digimarc Corporation

01/15/15 / #20150016712

Methods for object recognition and related arrangements

Methods and arrangements involving portable user devices such smartphones and wearable electronic devices are disclosed, as well as other devices and sensors distributed within an ambient environment. Some arrangements enable a user to perform an object recognition process in a computationally- and time-efficient manner. ... Digimarc Corporation

01/15/15 / #20150016688

Salient point-based arrangements

A variety of methods and systems involving sensor-equipped portable devices, such as smartphones and tablet computers, are described. One particular embodiment decodes a digital watermark from imagery captured by the device and, by reference to watermark payload data, obtains salient point data corresponding to an object depicted in the imagery. ... Digimarc Corporation

01/15/15 / #20150016664

Methods and arrangements involving substrate marking

First and second patterns are formed on a substrate. A spatial offset between the patterns is determined, and stored for later use in authenticating the substrate. ... Digimarc Corporation

01/15/15 / #20150016661

Watermarking and signal recognition for managing and sharing captured content, metadata discovery and related arrangements

Content played at an event is identified using watermarking and/or other content recognition combined with contextual metadata, which facilitates identification and correlation with other content and metadata when it is posted to a network.. . ... Digimarc Corporation

01/15/15 / #20150016615

Audio and location arrangements

In one arrangement, a person's position in a movie auditorium is discerned by detection of audio signals from two or more speakers, and the person is then assigned a role or task in a game based on this discerned location. In another arrangement, a person's current position in a home listening environment is similarly discerned; this position information is used to control the balance of complementary audio channels of a home audio system, so that the audio “sweet spot” is located at the person's current position. ... Digimarc Corporation

01/08/15 / #20150011194

Methods and systems for image or audio recognition processing

Many of the detailed technologies are useful in enabling a smart phone to respond to a user's environment, e.g., so it can serve as an intuitive hearing and seeing device. A few of the detailed arrangements involve optimizing division of shared processing tasks between the phone and remote devices; using a phone gpu for exhaustive speculative execution and machine vision purposes (including facial recognition); novel device architectures involving abstraction layers that facilitate substitution of different local and remote services; interactions with private networks as they relate to audio/image processing; adapting the orders in which operations are executed, and the types of data that are exchanged with remote servers, in accordance with current context; reconfiguring networks based on sensed social affiliations among users and in accordance with predictive models of user behavior; etc. ... Digimarc Corporation

01/08/15 / #20150010231

Histogram methods and systems for object recognition

A multidimensional histogram is used to characterize an image (or object), and is used to identify candidate matches with one or more reference images (or objects). An exemplary implementation employs hue information for two of the dimensions, and a second derivative function based on luminance for a third dimension. ... Digimarc Corporation

01/01/15 / #20150006186

Physiologic audio fingerprinting

Audio sounds are captured from a subject's body, e.g., using a smartphone or a worn array of microphones. Plural features are derived from the captured audio, and serve as fingerprint information. ... Digimarc Corporation

01/01/15 / #20150005644

Dermoscopic data acquisition employing display illumination

In one arrangement, a smartphone camera gathers skin imagery while controlled spectral illumination is emitted from the smartphone display. In a particular embodiment, differently colored bands move across a darkened screen to illuminate the skin from different angles as plural images are being captured. ... Digimarc Corporation

01/01/15 / #20150005640

Gesture-based dermatologic data collection and presentation

In one particular arrangement, a smartphone camera is moved by a user to capture dermatologic imagery from a variety of viewpoints. When the user thereafter holds the phone in a particular pose (e.g., with the display inclined upwardly, and with a display edge oriented substantially horizontally), the device switches to a display mode—presenting information derived from the earlier-captured dermatologic imagery. ... Digimarc Corporation

01/01/15 / #20150003802

Audio/video methods and systems

Audio and or video data is structurally and persistently associated with auxiliary sensor data (e.g., relating to acceleration, orientation or tilt) through use of a unitary data object, such as a modified mpeg file or data stream. In this form, different rendering devices can employ co-conveyed sensor data to alter the audio or video content. ... Digimarc Corporation

01/01/15 / #20150003699

Methods and arrangements for identifying dermatological diagnoses with clinically negligible probabilties

Reference imagery of dermatological conditions is compiled in a crowd-sourced database (contributed by clinicians and/or the lay public), together with associated diagnosis information. A user later submits a query image to the system (e.g., captured with a smartphone). ... Digimarc Corporation

01/01/15 / #20150003698

Color correction arrangements for dermoscopy

Computer-aided dermatological analysis requires accurate color data. Color accuracy can be improved by compensating captured imagery based on reference color data. ... Digimarc Corporation








ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009



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