Patent application number | Description | Published |
20090251555 | METHOD AND SYSTEM FOR CAMERA SENSOR FINGERPRINTING - Some embodiments of the application provides methods and systems for providing camera fingerprinting by receiving a video frame from a camera, generating a confidence map based on an image characteristic associated with the video frame, generating a signature based on a sensor imperfection in the camera, weighting the signature based on the confidence map for each frame and generating a key based on the weighted signature over the plurality of video frames received. Other methods and systems are disclosed. | 10-08-2009 |
20090277962 | ACQUISITION SYSTEM FOR OBTAINING SHARP BARCODE IMAGES DESPITE MOTION - A system for barcode acquisition having a camera with a flutter shutter. The flutter shutter may operate according to a pattern or code designed to accommodate parameters such as distance between the camera and a barcode, barcode type, velocity between the camera and the barcode, blur estimation base on barcode features, and other factors. The image from the camera may be de-blurred or decoded in accordance with the flutter shutter pattern or code. Several images may be captured for patterns or codes based on different parameters. These images may be de-blurred and the highest quality image may be selected according to barcode landmarks. | 11-12-2009 |
20090278928 | SIMULATING A FLUTTERING SHUTTER FROM VIDEO DATA - A method and system for simulating a fluttering shutter from video data. Composite images can be generated by adding a sequence of video frames, scaling each according to a weight. By selecting an appropriate sequence of weights, the effects of a fluttering shutter can be synthesized, with the additional flexibility of being able to use negative and non-binary amplitudes. In addition, video analytic functions such as background subtraction and tracking can be used to improve the results of the de-blurring. In particular, the use of background-subtracted frames in generating the composite image prevents background intensities from distorting the de-blurred image. Tracking information can be utilized to estimate the location and speed of moving objects in the scene, which can be used to generate a composite image with a fixed amount of motion blur. This alleviates the need to estimate the direction and extent of motion blur from the coded image, errors in which can reduce the quality of the de-blurred image. | 11-12-2009 |
20100102961 | ALERT SYSTEM BASED ON CAMERA IDENTIFICATION - Some embodiments of the application provides methods and systems for receiving image frames from a plurality of repositories, extracting a camera fingerprint for each of the image frames, storing the camera fingerprints in a directory, receiving a new image frame from one of the plurality of repositories and extracting a new camera fingerprint corresponding to the new image frame, comparing the new camera fingerprint to each of the stored camera fingerprint, and generating an alert if a match is determined between the new camera fingerprint and at least one of the stored camera fingerprints in the directory. | 04-29-2010 |
20100182440 | HETEROGENEOUS VIDEO CAPTURING SYSTEM - A heterogeneous video capturing system having motion and blur estimation. An item of motion may be captured with a continuous shutter and a flutter shutter. The flutter shutter image may be preceded and following by a continuous shutter image. Motion of a subject of the images may be estimated from the shutter images. The estimated motion may be a basis for blur estimation and blur removal from the flutter shutter image. | 07-22-2010 |
20100220896 | METHOD AND SYSTEM FOR DETERMINING SHUTTER FLUTTERING SEQUENCE - A method, system and computer-usable medium for determining shutter fluttering sequence. The disclosed approach is based on the use of shutter flutter technology, which means that an image can be acquired in such a manner as to encode all information about the moving subject. The disclosed approach involves determining a shutter's fluttering pattern that optimally encodes information at all frequencies. The disclosed approach involves an optimization method for finding a shutter fluttering pattern that has several desired properties. These properties can be expressed in the context of a fitness function: given a fluttering pattern and the target subject's velocity, it produces the equivalent Modulation Transfer Function (MTF), measures three attributes, and produces a fitness score. These attributes are the minimum contrast, the variance in contrast across spatial frequencies, and the mean contrast. The objective of the disclosed approach is to determine the fluttering pattern that maximizes the fitness score. | 09-02-2010 |
20100220898 | FEATURE-BASED METHOD AND SYSTEM FOR BLUR ESTIMATION IN EYE IMAGES - A feature-based method and system for blur estimation in eye images. A blur estimation can be performed from eye/iris images in order to produce de-blurred images that are more useful for biometric identification. The eye/iris region, in particular the edge between the iris and pupil regions, can be utilized. The pattern of shutter motion or a characterization of the optical system can be utilized. By capturing a burst of images, or a video stream, one can use eye position in the images before and after a given capture to predict the motion of the eye within that capture. Because the before/after image frames need only contain the information necessary to locate the eye, and need not contain sufficient information to perform matching, the capture of these images can be accomplished with a wider range of settings. | 09-02-2010 |
20110080500 | IMAGING TERMINAL, IMAGING SENSOR HAVING MULTIPLE RESET AND/OR MULTIPLE READ MODE AND METHODS FOR OPERATING THE SAME - There is described in one embodiment an indicia reading terminal having an image sensor pixel array incorporated therein, where the terminal is operative for decoding of decodable indicia and for providing frames of image data (e.g., color) for storage, display, or transmission. Embodiments of imaging terminals, image sensor arrays and methods for operating the same can controllable process an integration period to improve pixel, image sensor, or imaging terminal performance. | 04-07-2011 |
20110096177 | FLUTTERING ILLUMINATION SYSTEM AND METHOD FOR ENCODING THE APPEARANCE OF A MOVING OBJECT - A fluttering illumination system and method for encoding the appearance of a moving subject includes an image capturing device, a lens, a shutter, an illumination source, and a device to control illumination triggering and power. The image capturing device may be configured in a bulb shutter mode to integrate light patterns from the object upon the sensor via the shutter until a shutter release is open. The control device may be invoked to trigger several illuminations of varying power in a predetermined sequence by rapidly turning the illumination source on and off when the shutter release is open. The shutter release may then be closed following the firing of a last illumination in order to invertibly encode the appearance of the moving subject in a single image. Data indicative of a motion blur associated with the image may be estimated and the image processed to recover a sharp image without noise and ringing artifacts. | 04-28-2011 |
20110096180 | FOURIER DOMAIN BLUR ESTIMATION METHOD AND SYSTEM - A method and system for estimating motion blur of an image associated with a moving object. The direction of one-dimensional motion blur may be estimated by inspecting a power spectrum associated with the image. A radon transform with respect to the image power spectrum is computed in the direction of the motion blur. A family of kernels with respect to the one-dimensional motion blur may then be defined utilizing a shutter triggering sequence associated with an image capturing device. The family of kernels may be modeled utilizing a modulation transfer function (MTF). Each modulation transfer function may be compared with the radon transform of the power spectrum associated with the image via a correlation function. The kernel with highest correlation with respect to the radon transform of the image power spectrum may be employed for de-blurring the image. | 04-28-2011 |
20110161340 | LONG-TERM QUERY REFINEMENT SYSTEM - A system for providing long term query refinement. Low level information may be stored based on user feedback. There may be equivalence classes in an archive or memory which contain items from a query search which are labeled positive or negative by a user. Labels may be stored in class pairs over previously run queries. There may be propagation of labels to other items in the same or other classes. There may be a refinement which aids in changing the query to one that indicates more accurately what the user wants. A result set of items may be formulated from which a user may select a new query. | 06-30-2011 |
20110202527 | DISTANCE-SPACE EMBEDDING FOR MULTI-DESCRIPTOR MATCHING AND RETRIEVAL - A process includes receiving an archive of video data comprising a plurality of archive descriptor types, and applying a query to the archive. The query includes a number of N query descriptor types for a query object. The process further includes determining a difference between each query descriptor type and corresponding descriptor types of the archive, and storing each difference as a point in an N dimensional space. The process further includes identifying an archive object that is similar to the query object as a function of proximities of the differences to an origin of the N dimensional space. | 08-18-2011 |
20110216211 | METHOD AND SYSTEM FOR DESIGNING OPTIMAL FLUTTER SHUTTER SEQUENCE - A method, system and computer-usable medium for determining an optimal shutter fluttering sequence. The disclosed approach is based on the use of shutter flutter technology, which means that an image can be acquired in such a manner as to encode all information about the moving subject. The disclosed approach involves determining a shutter's fluttering pattern that optimally encodes information at all frequencies. The disclosed approach involves an optimization method for finding a shutter fluttering pattern that maximizes the minimum value of a function defining the plurality of flutter shutter sequences over a frequency domain. The disclosed approach involves eliminating all flutter shutter sequences that contain lost frequencies. The objective of the disclosed approach is to select an optimal flutter shutter sequence for implementation with a flutter shutter camera. | 09-08-2011 |
20110216964 | META-CLASSIFIER SYSTEM FOR VIDEO ANALYTICS - A system for meta-classification having a training phase mechanism and an operational phase mechanism. The training phase mechanism may have a detection and tracking module, a classifier section connected to the detection and tracking module, a feature synthesis module connected to the classifier section, a labeling module connected to the feature synthesis module and a training data module connected to the labeling module. The operational phase mechanism may have a detection and tracking module, a classifier section connected to the detection and tracking module, a feature synthesis module connected to the classifier section and a meta-classification module connected to the feature synthesis module and the training module. The training phase mechanism may provide parameters and settings to the operational phase mechanism. | 09-08-2011 |
20120069225 | METHODS AND SYSTEMS FOR CAPTURING AN IMAGE OF A MOVING OBJECT - Methods and systems for capturing an image of a moving subject employ a camera image sensor that captures a blurred image of a moving subject. In-capture positions of the moving object are also determined using a high frame rate camera or other motion sensing device. The PSF for controlling modulation of the light hitting the camera image is successively updated by selecting, from among a plurality of pre-computed invertible PSFs, a pre-computed invertible PSFs for each estimated motion of the moving object. Light hitting the camera image sensor is modulated in capture phase according to one or more of the updated pre-computed invertible PSFs such that the captured blurred image is invertible. The resulting invertible blurred image can be de-blurred using the selected known PSFs to provide a substantially sharp image. | 03-22-2012 |
20120162448 | METHOD AND SYSTEM FOR DETECTING MOTION BLUR - A system for detecting motion blur may include a process in which one or more digital images taken by a camera having a shutter are obtained, wherein the digital image depicts objects in a physical world. Further, the system may estimate the motion blur in the digital image using a ratio of one or more values obtained from the projection of a 2D spectrum of the image and a Fourier transform of a sequence of the shutter used in obtaining the image. | 06-28-2012 |
20120189157 | MOTION-BASED IMAGE WATERMARKING - A computer implemented method and system including providing a motion pattern to an imaging device; and acquiring an image with the imaging device, wherein the image has embedded signals representative of the motion pattern and the embedded signals provide an authenticating watermark. The embedded signals can comprise spectrum information selected from duration, dimension, acceleration and velocity. | 07-26-2012 |
20120194504 | RENDERING-BASED LANDMARK LOCALIZATION FROM 3D RANGE IMAGES - A computer implemented method comprising acquiring a three-dimensional (3D) range image containing one or more 3D landmarks; rendering the 3D range image into a rendered visible image containing intensity patterns related to the one or more 3D landmarks; and localizing at least one of the one or more 3D landmarks in the rendered visible image to provide at least one localized 3D landmark. is provided. Such methods, and related systems, and devices, are useful in biometric identification applications. | 08-02-2012 |
20130101158 | DETERMINING DIMENSIONS ASSOCIATED WITH AN OBJECT - Devices, methods, and systems for determining dimensions associated with an object are described herein. One system includes a range camera configured to produce a range image of an area in which the object is located, and a computing device configured to determine the dimensions of the object based, at least in part, on the range image. | 04-25-2013 |
20130126615 | BAR CODE READERS AND METHODS OF READING BAR CODES - Bar code readers and methods of reading bar codes are described herein. One device includes a camera configured to produce a motion invariant image of a bar code while the bar code is in motion and a processor configured to deblur the motion invariant image of the bar code. | 05-23-2013 |
20130132311 | SCORE FUSION AND TRAINING DATA RECYCLING FOR VIDEO CLASSIFICATION - Multiple classifiers can be applied independently to evaluate images or video. Where there are heavily imbalanced class distributions, a local expert forest model for meta-level score fusion for event detection can be used. Performance variations of classifiers in different regions of a score space can be adapted. Multiple pairs of experts based on different partitions, or “trees,” can form a “forest,” balancing local adaptivity and over-fitting. Among ensemble learning methods, stacking with a meta-level classifier can be used to fuse an output of multiple base-level classifiers to generate a final score. A knowledge-transfer framework can reutilize the base-training data for learning the meta-level classifier. By recycling the knowledge obtained during a base-classifier-training stage, efficient use can be made of all available information, such as can be used to achieve better fusion and better overall performance. | 05-23-2013 |
20130142438 | SYSTEM AND METHOD FOR GEOSPATIAL PARTITIONING OF A GEOGRAPHICAL REGION - An apparatus includes at least one memory unit and at least one processing unit. The memory unit is configured to receive and store information associated with a particular geographical region. The processing unit configured to execute a computer program for discretizing an image of the geographical region into a plurality of sub-regions. Using these sub-regions, the processing unit may generate a graph comprising a plurality of nodes and a plurality of edges in which the nodes comprise the sub-regions. The processing unit may also geospatially partition an image of the geographical region according to the information that is associated with each of the sub-regions. | 06-06-2013 |
20130147938 | SAFETY GLASSES VERIFICATION - Safety glasses verification methods and devices are described herein. One method in accordance with the present disclosure includes capturing an RGB image of an individual, capturing an infrared (IR) image of the individual, and verifying safety glasses are being worn by the individual based on the RGB image and the IR image. | 06-13-2013 |
20130282721 | DISCRIMINATIVE CLASSIFICATION USING INDEX-BASED RANKING OF LARGE MULTIMEDIA ARCHIVES - Devices, systems, and methods of performing feature detection on a set of multimedia files are disclosed. One method of organization includes identifying a feature from each multimedia file within the set of multimedia files wherein each file has one feature, organizing the features based on their similarities wherein similar features are grouped based upon a proximity in a feature space and a representative feature is identified for each group, receiving a detection model having one or more detection criteria the detection model having previously been trained for detection using the organized features, and using the representative features to apply the detection model in a decreasing order of detection probability in order to detect the files satisfying the detection criteria within the set of multimedia files. | 10-24-2013 |
20130342653 | CARGO SENSING - Cargo presence detection systems and methods are described herein. One cargo presence detection system includes one or more sensors positioned in an interior space of a container, and arranged to provide spatial data about at least a portion of the interior space of the container and a detection component that receives the spatial data from the one or more sensors and identifies if one or more cargo items are present in the interior space of the container based on analysis of the spatial data. | 12-26-2013 |
20140036072 | CARGO SENSING - Cargo presence detection devices, systems, and methods are described herein. One cargo presence detection system includes one or more sensors positioned in an interior space of a container, and arranged to collect background image data about at least a portion of the interior space of the container and updated image data about the portion of the interior space of the container and a detection component that receives the image data from the one or more sensors and identifies if one or more cargo items are present in the interior space of the container based on analysis of the background and updated image data. | 02-06-2014 |
20140104413 | INTEGRATED DIMENSIONING AND WEIGHING SYSTEM - An object analysis system includes a scale for measuring the weight of the object, a range camera configured to produce a range image of an area in which the object is located, and a computing device configured to determine the dimensions of the object based, at least in part, on the range image. Methods for determining the dimensions of an object include capturing a range image and/or a visible image of a scene that includes the object. | 04-17-2014 |
20140104414 | DIMENSIONING SYSTEM - A terminal for measuring at least one dimension of an object includes a range camera, a visible camera, and a display that are fixed in position and orientation relative to each other. The range camera is configured to produce a range image of an area in which the object is located. The visible camera is configured to produce a visible image of an area in which the object is located. The display is configured to present information associated with the range camera's field of view and the visible camera's field of view. | 04-17-2014 |
20140133755 | REMOVING AN OCCLUSION FROM AN IMAGE - Systems, methods, and devices for reducing an occlusion in an image are described herein. For example, one or more embodiments include a method including providing image information from a first image taken from a light field camera, analyzing image information from multiple sub-aperture images extracted from the image information of the first image to separate foreground and background appearance information, creating a mask of an occlusion based on the separated foreground and background appearance information, and rendering a second, modified image where the mask has been applied to reduce the occlusion in the modified image. | 05-15-2014 |
20140239071 | INDICIA READING TERMINALS AND METHODS FOR DECODING DECODABLE INDICIA EMPLOYING LIGHT FIELD IMAGING - A terminal for decoding decodable indicia includes a plenoptic imaging subsystem comprising an image sensor array and plenoptic imaging optics operable to project a plenoptic image of a space containing the decodable indicia onto the image sensor array, a hand held housing encapsulating a least a portion of the plenoptic imaging subsystem, a trigger for initiating operation of the plenoptic imaging subsystem to obtain plenoptic image data of the decodable indicia, and an illumination source for projecting illumination onto the decodable indicia; an aimer for projecting an aimer pattern onto the decodable indicia. The terminal is operable, responsive to detecting that the trigger has been actuated by an operator, to obtain plenoptic image data from the image sensor array, to obtain first rendered image data based on at least a portion of the plenoptic image data, and to attempt to decode the decodable indicia represented in the rendered image data. | 08-28-2014 |
20140313306 | CROSS-SENSOR IRIS MATCHING - Methods, devices, and systems for cross-sensor iris matching are described herein. One method includes capturing a first image of an iris using a first sensor, capturing a second image of an iris using a second sensor, and determining whether the iris in the first image matches the iris in the second image based on characteristics of the first sensor and the second sensor and image quality of the first image and the second image. | 10-23-2014 |
20140351926 | ATHENTICATION OF DEVICE USERS BY GAZE - A method includes obtaining a gaze feature of a user of a device, wherein the device has already been unlocked using a second feature, the gaze feature being based on images of a pupil relative to a display screen of the device, comparing the obtained gaze feature to known gaze features of an authorized user of the device, and determining whether or not the user is authorized to use the device based on the comparison. | 11-27-2014 |
20150042829 | MOTION DEBLURRING - Motion de-blurring systems and methods are described herein. One motion de-blurring system includes an image sensing element, one or more motion sensors in an imaging device, a lens element that undergoes motion during a capture of an image by the sensing element, and a de-blurring element to de-blur the image captured by the sensing element via de-convolving a Point Spread Function (PSF). | 02-12-2015 |
20150063676 | System and Method for Package Dimensioning - A system and method for package dimensioning is provided. The package-dimensioning system includes an image capturing subsystem for acquiring information about an object within the image-capturing subsystem's field of view. A features-computation module analyzes object information and compiles a feature set describing the object's surface features. A classification module analyzes the feature set and categorizes the object's shape. A shape-estimation module estimates the dimensions of the object. | 03-05-2015 |