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4720 results about "Filter methods" patented technology
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The filter() method constructs an iterator from elements of an iterable for which a function returns true. In simple words, the filter() method filters the given iterable with the help of a function that tests each element in the iterable to be true or not.
Method and system for categorizing and processing e-mails
ActiveUS7206814B2Multiple digital computer combinationsData switching networksCentral databaseWorld Wide Web
An e-mail filtering method and system that categorize received e-mail messages based on information about the sender. Data about the sender is contained in the message and is used to identify the actual sender of the message using a signature combining pieces of information from the message header or derived from information in the message header. This and other information about the message is then sent by each member of an e-mail network to one or more central databases (in one embodiment, the information will also be stored at a database associated with the recipient's e-mail program and filtering software) which stores the information and compiles statistics about e-mails sent by the sender to indicate the likelihood that the e-mail is unsolicited and determine the reputation of the sender (a good reputation indicates the sender does not send unwanted messages while a bad reputation indicates the sender sends unsolicited e-mail messages). Information from the central database is then sent to recipients in order to determine the likelihood that a received e-mail message is spam (information may also be obtained from the local database associated with the recipient's e-mail program and filtering software).
Owner:PROOFPOINT INC
Red-eye filter method and apparatus
A digital image acquisition system having no photographic film, such as a digital camera, has a flash unit for providing illumination during image capture and a red-eye filter for detecting a region within a captured image indicative of a red-eye phenomenon, the detection being based upon a comparison of the captured image and a reference image of nominally the same scene taken without flash. In the embodiment the reference image is a preview image of lower pixel resolution than the captured image, the filter matching the pixel resolutions of the captured and reference images by up-sampling the preview image and / or sub-sampling the captured image. The filter also aligns at least portions of the captured image and reference image prior to comparison to allow for, e.g. movement in the subject.
Owner:FOTONATION LTD
Analyte filter method and apparatus
The invention comprises a method and apparatus for enhancing the analysis of noninvasive spectra, resulting in improved analytical performance. More particularly, the invention comprises a method and apparatus for processing noninvasive spectra with an analyte filter that preferably rejects variation likely to be detrimental to the measurement system, while passing signal that probabilistically is unique to the target analyte. Subsequently, the analyte filtered data are used to estimate an analyte property, such as a glucose concentration, in the presence of noise, interferences, state changes, and / or across analyzers.
Owner:GLT ACQUISITION
Method and system for categorizing and processing e-mails based upon information in the message header and SMTP session
InactiveUS20050198159A1Multiple digital computer combinationsData switching networksWeb siteSpamming
Owner:ABACA TECH CORP
Embolic filtering method and apparatus
InactiveUS20060009799A1Obstruct passageEncourage and facilitate growth of tissueAnnuloplasty ringsDilatorsVenous bloodCardiac defects
Owner:SEPTRX
Method, medium, and filter removing a blocking effect
InactiveUS20050201633A1Reduce discontinuityPulse modulation television signal transmissionCharacter and pattern recognitionBlock effectComputer science
Owner:SAMSUNG ELECTRONICS CO LTD +1
Optimized Performance and Performance for Red-Eye Filter Method and Apparatus
Owner:TESSERA TECH IRELAND LTD
Optimized performance and performance for red-eye filter method and apparatus
A digital camera has an integral flash and stores and displays a digital image. Under certain conditions, a flash photograph taken with the camera may result in a red-eye phenomenon due to a reflection within an eye of a subject of the photograph. A digital apparatus has a red-eye filter which analyzes the stored image for the red-eye phenomenon and modifies the stored image to eliminate the red-eye phenomenon by changing the red area to black. The modification of the image is enabled when a photograph is taken under conditions indicative of the red-eye phenomenon. The modification is subject to anti-falsing analysis which further examines the area around the red-eye area for indicia of the eye of the subject. The detection and correction can be optimized for performance and quality by operating on subsample versions of the image when appropriate.
Owner:DIGITALPTICS EURO
Method and system for categorizing and processing e-mails
ActiveUS20050080856A1Good reputationMultiple digital computer combinationsData switching networksSpammingScreening method
An e-mail filtering method and system that categorize received e-mail messages based on information about the sender. Data about the sender is contained in the message and is used to identify the actual sender of the message using a signature combining pieces of information from the message header or derived from information in the message header. This and other information about the message is then sent by each member of an e-mail network to one or more central databases (in one embodiment, the information will also be stored at a database associated with the recipient's e-mail program and filtering software) which stores the information and compiles statistics about e-mails sent by the sender to indicate the likelihood that the e-mail is unsolicited and determine the reputation of the sender (a good reputation indicates the sender does not send unwanted messages while a bad reputation indicates the sender sends unsolicited e-mail messages). Information from the central database is then sent to recipients in order to determine the likelihood that a received e-mail message is spam (information may also be obtained from the local database associated with the recipient's e-mail program and filtering software).
Owner:PROOFPOINT INC
Optimized Performance and Performance for Red-Eye Filter Method and Apparatus
A digital camera has an integral flash and stores and displays a digital image. Under certain conditions, a flash photograph taken with the camera may result in a red-eye phenomenon due to a reflection within an eye of a subject of the photograph. A digital apparatus has a red-eye filter which analyzes the stored image for the red-eye phenomenon and modifies the stored image to eliminate the red-eye phenomenon by changing the red area to black. The modification of the image is enabled when a photograph is taken under conditions indicative of the red-eye phenomenon. The modification is subject to anti-falsing analysis which further examines the area around the red-eye area for indicia of the eye of the subject. The detection and correction can be optimized for performance and quality by operating on subsample versions of the image when appropriate.
Owner:FOTONATION LTD
Lighting devices, methods of lighting, light filters and methods of filtering light
ActiveUS20080259589A1Attractive white lightHigh color temperatureMechanical apparatusLight source combinationsEffect lightLight filter
A lighting device comprising a white light source, a filter which filters blue light from the white light, and a second light source which emits red light and / or reddish-orange light. In some embodiments, the white light source comprises a solid state light emitter. A method of lighting, comprising illuminating a white light source, illuminating a red and / or reddish-orange light source, the light sources being positioned and oriented such that the light mixes, and filtering blue light from the mixed light. A method of lighting, comprising illuminating a white light source, filtering blue light from the white light, and illuminating a red and / or reddish-orange light source. A light filter, comprising a first filter component which has a wall region and a window region, and a second filter component comprising two or more reflection regions. Also, methods of filtering.
Owner:IDEAL IND LIGHTING LLC
Email filtering methods and systems
InactiveUS7072942B1Improve the level ofReduce the impactMultiple digital computer combinationsTransmissionService provisionSystem impact
Various embodiments of the invention address two critical problems that current email service providers face. First, there is the problem of maintaining high levels of customer service when email server systems are inundated with spam. Second, there is the problem of reducing the system-wide impact that spam has on the email delivery system. Current embodiments are directed to determining whether an email message is an unwanted bulk email message without necessarily considering the message that is conveyed by any portion of the email message. Through analyses of patterns of delivery of these email messages, profiles are built that allow an email server to ascertain whether there is a likelihood that any one particular email message constitutes an unwanted email message. If an email message is determined to likely constitute an unwanted email message, then memory-saving measures are implemented. In preferred embodiments, one copy of the email message is saved at a central, shared location that can be accessed by each of the intended recipients. This avoids having to replicate the email message across the system for each of the recipients.
Owner:MICROSOFT TECH LICENSING LLC
Message and user attributes in a message filtering method and system
A method and system for filtering messages where the importance of a message is determined by analyzing the message body in conjunction with message attributes. Message body refers to the text in the body of the message, whereas message attributes convey information about the message. In another embodiment, analysis of the user's current computing environment provides additional input to the filtering system. This allows for preferentially weighting messages of user's current interests. Analysis includes computation of feature vectors and subsequent input to a discriminant function. The discriminant function provides a test statistic which is compared to a threshold. If the test statistic exceeds the threshold, the incoming message is passed by the filtering system and may be displayed to the user. In another embodiment, message body and attributes are used to anticipate significant events in a time series, such as streaming financial data.
Owner:BARRACUDA NETWORKS
Method and system for categorizing and processing e-mails
InactiveUS20050080857A1Good reputationMultiple digital computer combinationsData switching networksCentral databaseWorld Wide Web
An e-mail filtering method and system that categorize received e-mail messages based on information about the sender. Data about the sender is contained in the message and is used to identify the actual sender of the message using a signature combining pieces of information from the message header or derived from information in the message header. This and other information about the message is then sent by each member of an e-mail network to one or more central databases (in one embodiment, the information will also be stored at a database associated with the recipient's e-mail program and filtering software) which stores the information and compiles statistics about e-mails sent by the sender to indicate the likelihood that the e-mail is unsolicited and determine the reputation of the sender (a good reputation indicates the sender does not send unwanted messages while a bad reputation indicates the sender sends unsolicited e-mail messages). Information from the central database is then sent to recipients in order to determine the likelihood that a received e-mail message is spam (information may also be obtained from the local database associated with the recipient's e-mail program and filtering software).
Owner:ABACA TECH CORP
Analyte filter method and apparatus
Owner:GLT ACQUISITION
Internet content filtering system and method
This invention relates a filter system and a filter method for Internet content. The system includes: a content filter agent(CFA), a question server (QS) and a content analysis and management server (CAMS). The flow of the content filter system is that when a user sends a request of accessing a URL, CFA permits or for bits the said acc request according to the white and black name list set by the user. If the URL is not in the CFA name list, CFA delivers an inquiry the hierachical information of the URL in its own library and feeds back the result to CFA. CFA responds it and QS will download even new URL hierachical information. The invention can accurately identify poor information in network and prevent users from accessing them actively.
Owner:FUDAN UNIV
Circular target circular center positioning method
InactiveCN101334263AIncrease speedSimple calculationCharacter and pattern recognitionUsing optical meansMeasurement precisionLeast squares
The invention discloses a circle center locating method of a circular target, mainly relating to a great deal of target identification and target location. Firstly, rough circle center location is carried out to an image by using a simple contour centroid method, a key square region is extracted as a region of interest according to the information of a rough location circle center and a rough location radius, and pixel-level edge location is carried out to the circular target in the region of interest by a canny operator; then sub-pixel location is carried out to the circular target according to the geometric features and the gray information of the circle, therefore, a precise coordinate of sub-pixel edge points is obtained; after that, a curvature filtering method and an average filtering method are respectively used for filtering 'isolated points' and noise occurring in the sub-pixel edge points; finally, a least squares method is utilized to fit a circle to the filtered sub-pixel edge points so as to obtain the final circular center and radius. The method not only effectively improves the precision of circle center location, but also improves the robustness thereof, thus further improving the measurement precision of a measurement system and perfecting the stability of the measurement system.
Owner:南通欧特建材设备有限公司 +1
E-mail system providing filtering methodology on a per-domain basis
ActiveUS20030050988A1Multiple digital computer combinationsData switching networksTraffic capacityTime segment
An e-mail system is described that includes a flow control filter, which is particularly suited for filtering on a per-domain (host) basis. During processing of incoming e-mail, each child MTA process created to handle a particular new connection connects to a flow control filter service, so that it can interact with the service during arrival of a message. This interaction provides a complete description of the incoming client, including IP address and host name, as well as the complete SMTP interaction. Since the flow control filter service monitors all children processes, it attains a global view of traffic flowing through the system. By virtue of its global view, the flow control filter service can track information on a per domain basis, including total volume of e-mail received from a particular domain over a given period of time. Since the knowledge lost by the forking process is captured by the flow control filter service, the service is in a position to enforce policy-based rules, including placing restrictions on child processes, based on the per-domain tallies encountered.
Owner:PROOFPOINT INC
Three-folded webpage text content recognition and filtering method based on the Chinese punctuation
InactiveCN101035128AReduce occupancyOmit reorganizatioData switching networksSpecial data processing applicationsPersonalizationFeature vector
A method based on Chinese website punctuation triple recognition and text content filtering. The method based on existing URL, the website information keywords in the method of filtration - filtration rate and the low rate of filtration of the whole problem, Bringing on a method for composite based on the URL and on keywords, as well as text-based knowledge representation method of vector space website text content filtering. Applying to a method Based on black-and-white list of URL filtering and Chinese punctuation statistical characteristics to effectively remove navigation information, relevant linked information, advertising linked information, copyright information and other Web content noise information to extract content of text; adopting vector space model text knowledge representation, By calculating vector text template and unhealthy information in the feature vector cosine angle, and set the threshold, compared to the text of the class. The invention can be widely used in the filtering of undesirable information network and website personalized information services.
Owner:DALIAN UNIV OF TECH
Method and apparatus for three-dimensional filtering of angiographic volume data
InactiveUS7024027B1Eliminate confusionRemove obscuring non-vascular contrastCharacter and pattern recognitionDiagnostic recording/measuringComputer visionVascular structure
A filtering method and apparatus for selectively filtering a gray scale angiographic image volume (54) that images vascular structures and that also contains extraneous non-vascular contrast is disclosed. A minimum vessel width parameter Wmin (70) is selected. A maximum vessel width parameter Wmax (132) is selected. A range of widths (66) are selected such that each vessel width parameter Wi (194) lies between Wmin (70) and Wmax (132) inclusive. For each Wi (194), an image Ii(x,y,z) (198) is generated that selectively retains imaged vascular structures of diameter Wi (194). The images Ii(x,y,z) (198) are combined to form a filtered image IF(x,y,z) (64) that selectively images the vascular structures.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV +1
Two microphone noise reduction system
A two microphone noise reduction system is described. In an embodiment, input signals from each of the microphones are divided into subbands and each subband is then filtered independently to separate noise and desired signals and to suppress non-stationary and stationary noise. Filtering methods used include adaptive decorrelation filtering. A post-processing module using adaptive noise cancellation like filtering algorithms may be used to further suppress stationary and non-stationary noise in the output signals from the adaptive decorrelation filtering and a single microphone noise reduction algorithm may be used to further provide optimal stationary noise reduction performance of the system.
Owner:CAMBRIDGE SILICON RADIO PLC +1
Sound processing system including forward filter that exhibits arbitrary directivity and gradient response in single wave sound environment
A sound processing system including at least one microphone, an audio processor, and at least one output device. The audio processor includes an analog beamformer, a microphone equalizer, and an apparent incidence processor. Two different embodiments of the apparent incidence processor are disclosed, that is, a wave generation method and a forward filtering method. Both embodiments use the same principles to estimate the properties of the individual waves of the sound field. With the present invention, it is possible to implement arbitrary directivity responses using a small number of microphones only, that is, two or three microphones. The present invention offers improved noise reduction also for environments with many independent noise sources. Furthermore, the present invention works for signals and noises with arbitrary statistics.
Owner:RASMUSSEN DIGITAL
Video encoding/decoding apparatus, de-blocking filter and filtering method based on intra-prediction directions for same, and recording media
ActiveUS20110200103A1Color television with pulse code modulationColor television with bandwidth reductionVideo encodingDiagonal
A video encoding / decoding apparatus, a deblocking filter and filtering method based on intra-prediction directions for same, and recording media are disclosed, and the deblocking filter includes: a boundary strength determiner for determining strength of boundary of current block; an intra-block identifier for confirming intra-block identity of a subblock enclosing first pixel at a certain location with reference to the boundary; an intra-prediction direction identifier for identifying an intra-prediction direction of the subblock if the subblock is identified as an intra-block; a filtering pixel selection unit for selecting pixels for filtering based on the first pixel and the identified intra-prediction direction; and a filtering unit for filtering in horizontal direction, vertical direction, or diagonal direction depending on the intra-prediction direction and relationships between pixel values of the selected pixels to eliminate deblocking artifacts within diagonal edges at a boundary between blocks by deblocking filtering in the intra-prediction direction.
Owner:SK TELECOM CO LTD
Face tracker and partial face tracker for red-eye filter method and apparatus
An image acquisition device includes a flash and optical system for capturing digital images. A face tracker identifies face regions within a series of one or more relatively low resolution reference images, and predicts face regions within a main digital image. A face analyzer determines one or more partial face regions within the one or more face regions each including at least one eye. A red-eye filter modifies an area within the main digital image indicative of a red-eye phenomenon based on an analysis of one or more partial face regions within the one or more face regions identified and predicted by the face tracker.
Owner:FOTONATION LTD
Matched filter, filtering method and digital broadcast receiver using the same
InactiveUS6980609B1Deterioration of SNR performanceIncreased circuit complexityCarrier regulationAmplitude-modulated carrier systemsCircuit complexityCarrier signal
A digital passband matched filter is automatically adapted to a carrier wave ω in accordance with a frequency offset of the carrier wave, to obtain a passband digital signal having no frequency distortion due to the frequency offset. Thus, a receiver in which drawbacks such as decrease of SNR and increase of circuit complexity caused by the fixed baseband / passband matched filter is obtained. Since a cosine wave generating section operates in a carrier wave frequency restoring mode and a carrier wave frequency adaptive mode, respectively, a single cosine wave ROM table can be used regardless of the respective operating modes, thereby reducing circuit complexity. Since the digital passband matched filter acts to renew the filter coefficients adapted to the carrier wave adaptive mode only, power consumption required to operate the filter can be minimized.
Owner:LG ELECTRONICS INC
Filtering method, apparatus, and medium used in audio-video codec
InactiveUS20060013315A1Efficient executionExpand memoryColor television with pulse code modulationColor television with bandwidth reductionPattern recognitionLoop filter
A filtering method, apparatus, and medium used in an audio-video codec are provided. The filtering method may include determining a predetermined macroblock as a filtering region; expanding the filtering region to further include a portion of a macroblock adjacent to the predetermined macroblock near a boundary between the predetermined macroblock and the macroblock adjacent to the predetermined macroblock; and performing a deblocking filtering operation on the expanded filtering region in a causal manner according to the passage of time. The filtering method, apparatus, and medium can be easily realized using a non-causal loop filter and buffers. The filtering method, apparatus, and medium can efficiently filter blocking artefacts without increasing a required memory bandwidth and causing frame delays.
Owner:SAMSUNG ELECTRONICS CO LTD
Indoor positioning method and device based on inertial data and visual features
ActiveCN107255476AImprove tracking accuracyImprove robustnessNavigational calculation instrumentsNavigation by speed/acceleration measurementsData modelingVisual perception
The invention discloses an indoor positioning technology based on inertial data and visual features and discloses a corresponding implementation device to implement the steps. The indoor positioning technology specifically comprises: (1) multi-sensor data processing: a camera calibration and image feature extraction method; an IMU data modeling and filtering method; (2) multi-sensor coordinate system calibration: a system modeling, relative attitude calibration and relative position and attitude joint calibration method; (3) an indoor positioning and tracking technology fusing the inertial data and the visual features. Compared with an existing traditional single camera tracking technology, the indoor positioning technology disclosed by the invention has the advantages that single camera tracking is a simple assumption based on constant-speed motion; a better prediction can be provided by using the inertial data of an IMU, so that a search area is smaller during feature matching, the matching speed is higher, the tracking results are more accurate, and the camera tracking robustness in the image degradation and un-textured areas is greatly improved.
Owner:青岛海通胜行智能科技有限公司
PLD-based packet filtering methods with PLD configuration data update of filtering rules
InactiveUS7031267B2Facilitate short time to carry-outEasy to switchTime-division multiplexData switching by path configurationPacket generatorOperational system
Methods and systems for a PLD-based network update transport (PNUT) protocol that utilizes UDP and other protocols for transmitting update or other commands or information over a packet-based or IP network. PNUT is a hardware-based network communication protocol that does not require the full TCP / IP stack and may be utilized for exchanging commands and information with such PLD-based and other devices. Protocols may include a set of core commands and a set of custom commands. Logic components within the PLD-based devices may consist of a command dispatcher, a transmitter / controller, a MAC receiver, a MAC transmitter, a packet parser, a packet generator, and core receiving and transmitting commands. The present invention may be implemented without requiring CPU cores, special controllers, stringent timings, or operating systems as compared with conventional network protocols. Various methods for exchanging and updating PNUT commands are disclosed. The methods and systems of the present invention may be utilized to provide other functions, such as filtering, logging, polling, testing, debugging, and monitoring, and may be implemented between a server and a PLD-based device or solely between PLD-based devices.
Owner:802 SYST
Filtered Search Query Data for Context and User Intent within a Location-Based Search Engine
A single search system that returns relevant search results for a user search query by identifying user intent and context implied therein. The inventive system supports POI and address searches initiated from a single search box only. Search query data is input in to a single search box on a single search client to initiate a search for an arbitrary piece of data. Meta-data concerning a nature of a search is not provided to the single search system. A search servlet on a single search server uses an ordered series of filter methods to progressively extract specific aspects of user intent from a freeform search query, and accumulate intent information within a context shared by all filters. The single search system determines a data corpus to search based on context provided in a user search query. Relevant search results are returned to the single search client in a search response.
Owner:HOLCOMB TIM +4
Message filtering method
ActiveUS20050169274A1High-precision identificationEnhancing message filteringError preventionFrequency-division multiplex detailsDomain nameIp address
A message filtering method makes use of a database in which domain names of a network, such as the Internet, are associated with IP addresses, or with geographic locations. Electronic messages are tested for authenticity by comparing domain names and IP addresses for a message being tested with information in the database. If the sender information in the message does not have the same associations as information in the database, the message may be blocked, flagged as spam, or subjected to further filtering.
Owner:INTELLECTUAL VENTURES I LLC
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