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1975 results about "Change detection" patented technology
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In statistical analysis, change detection or change point detection tries to identify times when the probability distribution of a stochastic process or time series changes. In general the problem concerns both detecting whether or not a change has occurred, or whether several changes might have occurred, and identifying the times of any such changes.
TV content segmentation, categorization and identification and time-aligned applications
ActiveUS9510044B1Receiver side switchingCharacter and pattern recognitionMulti languageDisplay device
Content segmentation, categorization and identification methods are described. Content tracking approaches are illustrated that are suitable for large scale deployment. Time-aligned applications such as multi-language selection, customized advertisements, second screen services and content monitoring applications can be economically deployed at large scales. A client performs fingerprinting, scene change detection, audio turn detection, and logo detection on incoming video and gathers database search results, logos and text to identify and segment video streams into content, promos, and commercials. A learning engine is configured to learn rules for optimal identification and segmentation at each client for each channel and program. Content sensed at the client site is tracked with reduced computation and applications are executed with timing precision. A user interface for time-aligned publishing of content and subsequent usage and interaction on one or more displays is also described.
Owner:ROKU INCORPORATED
System and Method for Automatically Importing, Refreshing, Maintaining, and Merging Contact Sets
InactiveUS20140222793A1Reduce running timeDigital data information retrievalDigital data processing detailsRecordsetData source
Systems and methods for automatically importing, refreshing and maintaining corrections to a list of contacts through addition, deletion, and change detection, and for merging disparate sources of data into a single unified list of contacts, according to configurable rule sets for resolving conflicts between the merged sources' values for any given field. Record sets are compared and automatically matched without requiring a unique contact identifier or key field; new records and deleted records are detected; conflicting information for any given field in a record is resolved; and updates to a local database are applied such that any override or augmentation of the data in the local database can persist for a given record. Multiple overlapping contact data sources are merged so as to identify common records, and the data combined so as to preserve as much information as possible, while concurrently handling conflicting data as it is encountered.
Owner:PARLANCE
Video scene background maintenance using change detection and classification
Video is processed by maintaining a background model for the video, detecting a target in the video, detecting if the target is a stationary target, and classifying the stationary target as an insertion in the background model or a removal from the background model.
Owner:MOTOROLA SOLUTIONS INC
Display input device and display input system
ActiveUS7109967B2Simple and intuitive operationExcellent meritCathode-ray tube indicatorsInput/output processes for data processingDisplay deviceHuman–computer interaction
A display input device comprises a display unit having a flexibility; and a first form change detection unit having a flexibility. The first form change detection unit is able to detect a deformation ascribed to the flexibility as a change in a electrical property. A display input system further comprises a display driving unit that supplies a display signal to the display unit and a signal judging unit that judges a input data based on the change in a electrical property in the first form change detection unit. The input of a first data can be performed by adding the deformation to the display input device.
Owner:KK TOSHIBA
Display input device and display input system
InactiveUS20060274036A1Merit on industry is greatSimple and intuitive operationCathode-ray tube indicatorsInput/output processes for data processingDisplay deviceHuman–computer interaction
Owner:KK TOSHIBA
Image change detection systems, methods, and articles of manufacture
Aspects of the invention relate to image change detection systems, methods, and articles of manufacture. According to one aspect, a method of identifying differences between a plurality of images is described. The method includes loading a source image and a target image into memory of a computer, constructing source and target edge images from the source and target images to enable processing of multiband images, displaying the source and target images on a display device of the computer, aligning the source and target edge images, switching displaying of the source image and the target image on the display device, to enable identification of differences between the source image and the target image.
Owner:BATTELLE ENERGY ALLIANCE LLC
Robust and efficient foreground analysis for real-time video surveillance
Systems and methods for foreground analysis in real-time video include background subtraction and foreground detection, shadow removal, quick lighting change adaptation, static foreground region detection, foreground fragment reduction, and frame level change detection. Processes include background image extraction and foreground detection, integrating texture information of the background image and a current frame to remove false positive foreground areas resulting from lighting changes, integrating pixel intensity information by determining a cross-correlation of intensities between a current frame and the background image for each pixel in a foreground mask to remove image shadows. Static foreground region detection and fragment reduction are also included.
Owner:IBM CORP
System, Method, and Computer Program Product for Video Based Services and Commerce
InactiveUS20090144624A1Facilitate communicationReservationsInformation formatData fileDisplay device
Owner:GULA CONSULTING LLC
Video scene background maintenance using change detection and classification
Owner:MOTOROLA SOLUTIONS INC
Method of increasing coding efficiency and reducing power consumption by on-line scene change detection while encoding inter-frame
InactiveUS20070274385A1Television system detailsColor television with pulse code modulationPattern recognitionComputation complexity
A system and method for on-the-fly detection of scene changes within a video stream through statistical analysis of a portion of the macroblocks comprising each video frame as they are processed using inter-frame coding. If the statistical analysis of the selected macroblocks of the current frame differs from the previous frame by exceeding predetermined thresholds, the current video frame is assumed to be a scene change. Once a scene change is detected, the remainder of the video frame is encoded as an intra-frame, intra-macroblocks, or intra slices, through implementation of one or more predetermined or adaptively adjusted quantization parameters to reduce computational complexity, decrease power consumption, and increase the resulting video image quality. As decoding is the inverse of encoding, these improvements are similarly recognized by a decoder as it decodes a resulting encoded video stream.
Owner:NXP USA INC
Vehicle brake device
InactiveUS20050269875A1Small dimensionLight weightPropulsion by batteries/cellsVehicular energy storageRegenerative brakeEngineering
A vehicle brake device is provided with a hydraulic brake device for boosting by a booster device a braking manipulation force generated upon a braking manipulation, for applying a base fluid pressure generated in dependence on the boosted brake manipulation force, to wheel cylinders of wheels so that a base hydraulic brake force is generated on the wheels, and for driving a pump to generate and apply a controlled fluid pressure to the wheel cylinders so that a controlled hydraulic brake force is generated on the wheels; braking manipulation state detecting means for detecting the braking manipulation state; a regenerative brake device for causing an electric motor to generate a regenerative brake force corresponding to the braking manipulation state on the wheels driven by the electric motor; variation detecting means for detecting the variation of an actual regenerative brake force actually generated by the regeneration braking device; and brake force compensating means for generating the controlled fluid pressure by driving the pump of the hydraulic brake device so that a controlled hydraulic brake force is generated on the wheels to compensate for the lack of the regenerative brake force due to the variation which is detected by the variation detecting means.
Owner:ADVICS CO LTD
Digital evidential camera system for generating alteration detection data using built-in encryption key
InactiveUS6968058B1Television system detailsPublic key for secure communicationCryptographic key generationImaging data
A digital evidential camera system is for detecting the alteration of image data obtained by photographing an object. The system comprises the camera and an alteration detection unit. The camera includes an image pickup unit for picking up an image of the object and an encryption processing unit for generating the alteration detection data using an encryption key built therein from the image data obtained by the image pickup unit. The alteration detection unit decrypts the alteration detection data using a decryption key corresponding to the encryption key, and detects whether the image data is altered based on the result of decryption.
Owner:OLYMPUS CORP
Driver scoring system with lane changing detection and warning system
InactiveUS20090284361A1Character and pattern recognitionOptical signallingRating systemDriver/operator
The invention disclosed provides a driver monitoring and scoring system that detects and alerts the driver of erratic movements in order to redirect the attention of the driver so the driver can correct the poor driving. The system has the capability to record the instances of driving behavior and report them either immediately via a wireless network or from stored memory. The invention also displays a scoring system where the driver loses points for erratic driving and gains points for problem free driving. The system can maintain a list of high scores sorted by driver such that the driver can strive for higher scores resulting in better driving habits. The system can be used in the vehicle of the general public or in specific cases such as monitoring of drunk driving repeat offenders or in commercial vehicles such as school buses and public transportation.
Owner:INNOSIGHT VENTURES PRIVATE
Method and system for image registration and change detection
InactiveUS20110222781A1Maximize correlationMinimize the differenceImage enhancementImage analysisLinearityImage registration
A system and method for detecting changes by comparing images which cover the same physical area but are collected at different times, the system comprising: at least one input for inputting an image of a target area; the image of the target area having signatures representing outstanding features; at least one processor operating to divide the image of a target area into a plurality of target subimages; at least one memory comprising reference data comprising reference subimages taken at or near the target area at various times, the at least one processor operating to determine a sparse image representation from the reference data; the sparse image representation of the target data being a linear combination of reference data from corresponding reference subimages stored in the at least one memory; the at least one processor operating to compare the target image to the sparse image representation and to match signatures from the target image to the sparse image representation to register the images and perform change detection.
Owner:US SEC THE ARMY THE
Methods of feature extraction of video sequences
InactiveUS6618507B1Digital data information retrievalCharacter and pattern recognitionFeature extractionVideo sequence
This invention relates to methods of feature extraction from MPEG-2 and MPEG-4 compressed video sequences. The spatio-temporal compression complexity of video sequences is evaluated for feature extraction by inspecting the compressed bitstream and the complexity is used as a descriptor of the spatio-temporal characteristics of the video sequence. The spatio-temporal compression complexity measure is used as a matching criterion and can also be used for absolute indexing. Feature extraction can be accomplished in conjunction with scene change detection techniques and the combination has reasonable accuracy and the advantage of high simplicity since it is based on entropy decoding of signals in compressed form and does not require computationally expensive inverse Discrete Cosine Transformation (DCT).
Owner:MICRO COMPACT CAR AG +1
Active noise control system with on-line secondary path modeling
An active noise control system is provided to specify an input transducer, an error transducer, an output transducer and an active noise controller for generating an anti-phase canceling acoustic signal to attenuate an input noise and to output a reduced noise. The active noise control system also performs on-line secondary path modeling. For this purpose the active noise control system comprises, in addition to known systems, a secondary path change detection circuitry (6), a signal distinguishing circuitry (7) and an auxiliary noise control circuitry (8), all of them being used to model said secondary path. FIG. 3
Owner:NANYANG TECH UNIV
Methods and apparatus for dynamic service discovery from Web services representation chain
InactiveUS20050080768A1Easy retrievalWeb data indexingDigital data processing detailsInformation networksPaper document
Techniques are provided for discovering services available in accordance with an information network. For example, the invention provides methods and apparatus for dynamic service discovery from at least one chain of one or more service description documents employing one or more of automatic change detection of the chain, result aggregation and caching capability. The invention enables businesses to easily retrieve up-to-date web services linked and nested multi-level deep in the service description documents.
Owner:IBM CORP
Adaptive update of background pixel thresholds using sudden illumination change detection
Techniques are disclosed for a computer vision engine to update both a background model and thresholds used to classify pixels as depicting scene foreground or background in response to detecting that a sudden illumination changes has occurred in a sequence of video frames. The threshold values may be used to specify how much pixel a given pixel may differ from corresponding values in the background model before being classified as depicting foreground. When a sudden illumination change is detected, the values for pixels affected by sudden illumination change may be used to update the value in the background image to reflect the value for that pixel following the sudden illumination change as well as update the threshold for classifying that pixel as depicting foreground / background in subsequent frames of video.
Owner:PEPPERL FUCHS GMBH +1
Mobile operating system
InactiveCN103309618AThe main interface is cleanThe main interface is beautifulDigital data processing detailsSubstation equipmentHuman–robot interactionChange detection
The invention relates to a mobile operating system which comprises a series of brand-new innovative technologies like intelligent dynamic icon, global icon interface, quick sliding start, quick voice assistant, quick delete assistant, intelligent motion start, an intelligent state change detection, quick complete close, fastback, efficient multi-task interface and global file browsing interface, all aspects of the existing iOS and the existing Android are completely innovated, and a human-computer interaction infrastructure of a mobile operating system of the next generation is established.
Owner:JIANG HONGMING
Angular velocity detector having inertial mass oscillating in rotational direction
InactiveUS20060112764A1Simple designEasy to manufactureAcceleration measurement using interia forcesSpeed measurement using gyroscopic effectsCapacitanceInertial mass
An angular velocity detector includes a disk-shaped inertial mass supported on a substrate via driving beams and a second mass connected to the inertial mass via detecting beams. The inertial mass is oscillated in its rotational direction around a center axis (z) by an electrostatic force. When an angular velocity around a detection axis (x), which is perpendicular to the center axis (z), is imposed on the second mass while the inertial mass is oscillating, the second mass displaces in the direction parallel to the center axis (z). A capacitance between the second mass and the substrate changes according to the displacement of the second mass. The angular velocity is detected based on the changes in the capacitance. Since the driving beams allow the inertial mass to oscillate only in the rotational direction, the driving beams can be easily designed and manufactured.
Owner:DENSO CORP
Method and apparatus for matching local self-similarities
A method includes matching at least portions of first, second signals using local self-similarity descriptors of the signals. The matching includes computing a local self-similarity descriptor for each one of at least a portion of points in the first signal, forming a query ensemble of the descriptors for the first signal and seeking an ensemble of descriptors of the second signal which matches the query ensemble of descriptors. This matching can be used for image categorization, object classification, object recognition, image segmentation, image alignment, video categorization, action recognition, action classification, video segmentation, video alignment, signal alignment, multi-sensor signal alignment, multi-sensor signal matching, optical character recognition, image and video synthesis, correspondence estimation, signal registration and change detection. It may also be used to synthesize a new signal with elements similar to those of a guiding signal synthesized from portions of the reference signal. Apparatus is also included.
Owner:YEDA RES & DEV CO LTD
Automatic processing of aerial images
Change detection apparatus for detection of changes between first and second stereoscopic image pairs obtained at different times of a substantially similar view, comprises: a two-dimensional image filter for comparing first and second image pairs to obtain an initial list of change candidates from two-dimensional information in the image pairs, and a three-dimensional image filter for comparing the image pairs at locations of the change candidates using three-dimensional image information. The apparatus retains those change candidates correlating with three-dimensional image change and rejects change candidates not correlating with three-dimensional image change, and produces a refined list of change candidates.
Owner:M A M D DIGITAL DATA PROCESSING SYST +1
Fusion of a 2d electro-optical image and 3D point cloud data for scene interpretation and registration performance assessment
Method and system for combining a 2D image with a 3D point cloud for improved visualization of a common scene as well as interpretation of the success of the registration process. The resulting fused data contains the combined information from the original 3D point cloud and the information from the 2D image. The original 3D point cloud data is color coded in accordance with a color map tagging process. By fusing data from different sensors, the resulting scene has several useful attributes relating to battle space awareness, target identification, change detection within a rendered scene, and determination of registration success.
Owner:HARRIS CORP
Detection of heart failure decompensation based on cumulative changes in sensor signals
Systems, devices and methods provide for evaluation of heart failure symptoms. Sensor data associated with one or more symptoms of heart failure are acquired and trended. Statistical features, such as slope, are extracted from the data trend in a moving window and are used to develop a cumulative sum. The cumulative sum is compared to a threshold value or V-mask to detect a shift in cumulative sum indicating changes in heart failure symptoms. A shift beyond the threshold value may trigger an alert or implementation of therapy.
Owner:CARDIAC PACEMAKERS INC
Remote-sensing image building change detection method
PendingCN110705457AEasy to detectReduce false alarm rateCharacter and pattern recognitionNeural architecturesPattern recognitionData set
The invention belongs to the technical field of remote sensing image processing, and particularly relates to a remote sensing image building change detection method, which comprises the following operation steps: (1) reading an image and preprocessing the image; (2) making a sample data set; (3) constructing a network model based on an attention mechanism and a feature pyramid; (4) selecting a training sample to train the network model; (5) selecting a verification sample to verify the network model; and (6) classifying by using the trained model, and outputting a final change detection result. According to the method, a feature pyramid network is introduced, an attention mechanism is used in the multi-scale feature fusion process of all levels, and features are enhanced layer by layer tobe used for target detection of different scales; through application of deformable convolution and cavity convolution, the network obtains the feature expression capability of automatically adaptingto object deformation, the feature size is reserved while the receptive field is expanded, multi-scale information is obtained, the false alarm rate is effectively reduced, and the detection precisionis improved.
Owner:BEIJING RES INST OF URANIUM GEOLOGY
Method and system for volumetric comparative image analysis and diagnosis
ActiveUS20070003117A1Automatic detectionImage enhancementImage analysisPattern recognitionImaging analysis
A technique is provided for comparative image analysis and / or change detection using computer assisted detection and / or diagnosis (CAD) algorithms. The technique includes registering two or more images, comparing the images with one another to generate a change map, and detecting anomalies in the images based on the change map.
Owner:GENERAL ELECTRIC CO +1
Database synchronization via a mobile network
ActiveUS20060184591A1Reduce overheadDatabase distribution/replicationTransmissionClient-sideMobile Web
An apparatus adapted to operate as an A party in a data-base synchronization with a B party via a mobile communication network. The database contains data items to be synchronized. The apparatus includes mechanisms for maintaining a copy of the database and a client-server communication module with a client part and a server part. The client part is configured to communicate via the mobile communication network with the server part of the B party. The apparatus also includes change detection mechanisms responsive to a detection of a changed data item, for initiating a synchronization event via the client part of the client-server communication module.
Owner:SEVEN NETWORKS INC
Stereo image display unit
Input means (31,32,33) receives signals representing stereo image. Image change detection means (36) detects changes with time in stereo image represented by the signals received from the input means. High attention center presumable area determination means (37) determines a peculiar local area of a displayed image area to be an observer's high attention center presumable area according to a result of detection by the image change detection means. Depth detection means (38,39) obtains information representing the depth of the image in the particular local area specified by the high attention center presumable area determination means. Depth control means (40) controls a quantity concerning the depth of stereo image represented by the signals received form the input means according to the depth information received form the depth detection means. Output means (41,42) outputs signals representing stereo image, with the quantity concerning the depth having been controlled by the depth control means, as stereo image signals to be displayed on stereo image display means.
Owner:OLYMPUS OPTICAL CO LTD
Methods of scene change detection and fade detection for indexing of video sequences
InactiveUS6449392B1High-precision detectionReduce pointsTelevision system detailsPicture reproducers using cathode ray tubesVideo sequenceComputer science
This invention relates to methods of abrupt scene change detection and fade detection for indexing of MPEG-2 and MPEG-4 compressed video sequences. Abrupt scene change and fade-detection techniques applied to signals in compressed form have reasonable accuracy and the advantage of high simplicity since they are based on entropy decoding and do not require computationally expensive inverse Discrete Cosine Transformation (DCT).
Owner:MITSUBISHI ELECTRIC RES LAB INC
Method and system for background estimation in localization and tracking of objects in a smart video camera
Aspects of a method and system for change detection in localization and tracking of objects in a smart video camera are provided. A programmable surveillance video camera comprises processors for detecting objects in a video signal based on an object mask. The processors may generate a textual representation of the video signal by utilizing a description language to indicate characteristics of the detected objects, such as shape, texture, color, and / or motion, for example. The object mask may be based on a detection field value generated for each pixel in the video signal by comparing a first observation field and a second observation field associated with each of the pixels. The first observation field may be based on a difference between an input video signal value and an estimated background value while the second observation field may be based on a temporal difference between first observation fields.
Owner:MOTOROLA SOLUTIONS INC
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