162results about How to "Robust method" patented technology

The present invention applies speech recognition technology to remote access, verification, and identification applications. Speech recognition is used to raise the security level of many types of transaction systems which previously had serious safety drawbacks, including: point of sale systems, home authorization systems, systems for establishing a call to a called party (including prison telephone systems), internet access systems, web site access systems, systems for obtaining access to protected computer networks, systems for accessing a restricted hyperlink, desktop computer security systems, and systems for gaining access to a networked server. A general speech recognition system using communication is also presented. Further, different types of speech recognition methodologies are useful with the present invention, such as "simple" security methods and systems, multi-tiered security methods and systems, conditional multi-tiered security methods and systems, and randomly prompted voice token methods and systems.

A method classifies images of faces according to gender. Training images of male and female faces are supplied to a vector support machine. A small number of support vectors are determined from the training images. The support vectors identify a hyperplane. After training, a test image is supplied to the support vector machine. The test image is classified according to the gender of the test image with respect to the hyperplane.

The invention provides a natural scene text detection method and system. The system comprises two neural network models: a text detection network based on multi-level semantic feature fusion and a detection screening network based on an attention mechanism, wherein the text detection network is an FCN-based image feature extraction fusion network, and is used for extracting multi-semantic level information of input data, carrying out full fusion of multi-scale features, and finally predicting the position and confidence degree of text information in a natural scene by carrying out convolutionoperation on the fused multi-scale information. According to the detection screening network, the trained convolutional recurrent neural network is used for discriminating and scoring an initial detection result output by the convolutional neural network of the first part, so that a background which is easy to confuse with foreground characters is filtered out, and the accuracy of natural scene text recognition is further improved.

The present invention relates to a determination method for making it possible to determine the position of a body part subject to vital movement that is to be irradiated, by means of determining a region of an analytical image,

wherein the region represents a body part subject to vital movement, in particular a tumor in an anatomical body, and performs a change in position from one analytical image to the next that reflects the vital movement, wherein the body parts subject to vital movement are parts of the body that are to be irradiated or are not to be irradiated and that move as a result of vital functions such as respiration and/or heartbeat even when the anatomical body is otherwise kept deliberately at rest,

advance analytical image data, which includes the description of an advance analytical image having an advance region in which a first body part subject to vital movement is represented, is provided,

procedure analytical image data that includes the description of a procedure analytical image of the body structure is provided,

on the basis of the advance analytical image data and the procedure analytical image data, a procedure region, which corresponds to the advance region and occupies a procedure position in the procedure analytical image, is determined in the procedure analytical image,

wherein a) determination of the procedure position of the procedure region is based on movement data that includes information on the vital movements of the body parts that are caused by the vital functions, and/or b) determination of the position of a second body part subject to vital movement is based on the determined procedure position and information on the relative position between the first and the second body part subject to vital movement.

Disclosed is a method for providing a user access to a computer system comprising a plurality of services and a plurality of authentication levels, the method comprising dynamically monitoring a risk profile of a user authenticated on said computer system; dynamically selecting an authentication level for each of said services based on said monitored risk profile; and if said authentication level for a service is higher than an actual authentication level for said user, sending a further authentication request to the user requesting the user to provide authentication information corresponding to the dynamically selected authentication level upon said authenticated user requesting access to said service.

A new type of data transport service which uses a frame relay layer 2 data link connection identifier (DLCI) to select among various service types, feature sets, and/or closed user groups (CUGs). A layer 3 address may be extracted from a layer 2 frame, and the layer 3 address information may be used to route a data packet over a packet-switched network according to the service classes, feature sets, and/or CUGs selected. At the destination, the layer 3 data packet may again be enclosed in a layer 2 frame with a DLCI indicating the service classes, features sets, and/or CUGs. Because the use of conventional permanent virtual circuits (PVCs) is not required in aspects of the invention, new methods of measuring and managing network traffic are presented.

A morphological analyzer divides a received text into known words and unknown words, divides the unknown words into their constituent characters, analyzes known words on a word-by-word basis, and analyzes unknown words on a character-by-character basis to select a hypothesis as to the morphological structure of the received text. Although unknown words are divided into their constituent characters for analytic purposes, they are reassembled into words in the final result, in which any unknown words are preferably tagged as being unknown. This method of analysis can process arbitrary unknown words without requiring extensive computation, and with no loss of accuracy in the processing of known words.

A method of determining a position and orientation of a device is provided. The position and orientation of the device is determined based on multiple degrees of freedom (DoF) and the device is associated with a capturing device for capturing at least one image is provided. The method includes: capturing at least one image of a real object with the capturing device, and providing a coordinate system in relation to the object; providing an estimation of intrinsic parameters of the capturing device; providing pose data to compute first and second DoFs in the coordinate system, with each DoF having a confidence degree; determining an initial pose of the device; performing a pose estimation process, and calculating in the pose estimation process an estimation of the DoFs having a second confidence degree; and determining a position and orientation of the device.

A method and system for large data transfer between a sender and a receiver. The sender transmits to the receiver a plurality of data packets in sequence. The time elapsed for each of the plurality of data packets after transmission of said each of the plurality of data packets is determined. The receiver transmits a message from the receiver to the sender notifying the sender that an identified one of the plurality of the data packets is missing. The sender retransmits to the receiver the identified one of the plurality of data packets only when the elapsed time determined for the identified one of the plurality of the data packets is greater than a predetermined time interval.

A method for the linearization of frequency modulated continuous wave (FMCW) radar devices having non-linear, ramp-shaped, modulated transmitter frequency progression x(t). With this invention, a correction phase term for compensation of the phase error in the reception signal q(t) is calculated on the receiver side in this device.

A temporal sequence of images is acquired of a dynamic scene. Spatial gradients are determined using filters. By taking advantage of the sparseness of outputs of the filters, an intrinsic background image is generated as median filtered gradients. The intrinsic background image is then divided into the original sequence of images to yield intrinsic foreground images. The intrinsic foreground images can be thresholded to obtain a detection mask.

A mobile robot is configured to navigate on a sidewalk and deliver a delivery to a predetermined location. The robot has a body and an enclosed space within the body for storing the delivery during transit. At least two cameras are mounted on the robot body and are adapted to take visual images of an operating area. A processing component is adapted to extract straight lines from the visual images taken by the cameras and generate map data based at least partially on the images. A communication component is adapted to send and receive image and/or map data. A mapping system includes at least two such mobile robots, with the communication component of each robot adapted to send and receive image data and/or map data to the other robot. A method involves operating such a mobile robot in an area of interest in which deliveries are to be made.

An isolated and purified nucleic acid molecule encoding a POMP91A protein of a strain of Chlamydia, is useful for nucleic acid immunization of a host, including a human host, against disease caused by infection by a strain of Chlamydia, particularly C. pneumoniae.

A robust method for addressing each of the participants of a bus system comprising a control unit, and a bus and a plurality of addressable participants connected to the bus, comprising the steps of a) pre-selecting a first number of participants, b) selecting from the pre-selected participants a second number of participants, and c) assigning one or more addresses to them, and repeating the steps a) to c). The selection and pre-selection is based on current sources, specific threshold values, and measurement error. The bus system and addressable device (are also claimed.

An isolated and purified nucleic acid molecule encoding an inclusion membrane protein C of a strain of Chlamydia, is useful for nucleic acid immunization of a host, including a human host, against disease caused by infection by a strain of Chlamydia, particularly C. pneumoniae.

A method and apparatus for focusing a device for imaging a biologic sample is provided. A method aspect includes the steps of: disposing lenslets within a biologic sample, which lenslets have a height and a refractive index, which refractive index is different from that of the sample, wherein one or both of the imaging device and the sample are relatively locatable so a focal position of the imaging device can be moved along the height of the lenslets; imaging a portion of the sample including lenslets using transmittance at one or more wavelengths; determining an average light transmittance intensity of the sample at the wavelengths; determining an average light transmittance intensity of a region of each lenslet at the wavelengths; and determining the focal position of the imaging device using the average light transmittance intensity of the sample and the average light transmittance intensity of the region of the lenslets.

Efficient delivery of large amounts of pump laser power distributed along the cladding (11, 54) of a single core (6) or multiple core (7, 51) laser fiber, without degrading the fiber integrity or compromising the fiber's waveguiding property, is accomplished by injecting the power into the cladding via delivery fibers (18, 30, 42, 62) permanently affixed to a peripheral wall (20, 56) at an angle that satisfies the condition for total internal reflection of the pump radiation so that it is confined within the inner cladding of the laser fiber. In one embodiment, the laser fiber (51) is wrapped around a drum (53). Each delivery fiber has a numerical aperture (NA) less than half the NA of the laser fiber, and a core 21 having a refractive index substantially the same as that of the inner cladding (11) of the laser fiber.

The automated inspection of features on printed circuit boards is compatible with automated manufacturing technology and greatly speeds the production of useful boards. One printed circuit board feature that can be difficult to inspect is the placement of holes surrounded by pad material. The present invention provides a more robust method and apparatus for inspecting holes to determine if they are surrounded by a pad material. Hole Images are processed to highlight the hole and adjacent pad material. Automated design and manufacturing data is combined with an indication of what forms an acceptable hole based on surface area measurement of pad material on the printed circuit board. The method and apparatus then compares measured areas with a calculated error threshold to determine if the hole is placed within an acceptable region of the printed circuit board. The invention also includes computer readable media containing programs to execute the methods of the invention

This invention relates to a method for one dimensional simulation of multiphase fluid flow in pipelines enabling determination of pressure drop, fluid volume fractions, and heat and mass transfer coefficients in multiphase pipeline flows, wherein the method comprises providing real world values of the superficial velocities of each of the continuous fluid phases, the pipe diameter, and the inclination angle of the pipeline relative to the horizontal plane, providing initial values describing the flow geometry of the multiphase flow, where the initial values at least comprises the axial pressure gradient and the positions of the large scale interfaces separating the continuous fluid phases, employing a one-dimensional numerical model based on Eulerian formulated transport equations of the multiphase flow in the pipeline, solving the numerical model with the set of input values from step a) and b) to determine the flow parameters of the multiphase flow, and displaying one or more of the determined flow parameters.

The present invention discloses an airborne radar monopulse front-view imaging method based on antenna directional diagram. The method comprises the steps of (1) carrying out sum and difference amplitude angle measurement on tested sum channel data and tested difference channel data, (2) calculating the phase error angle of an actual antenna directional pattern and an ideal antenna directional pattern, (3) giving an optimization model for solving the slope K of the monopulse response curve of an actual antenna system, (4) calculating the scattering point target actual angle of the nth pulse of an mth distance unit according to the sum channel data and difference channel data of the nth pulse of the mth distance unit, (5) in the mth distance unit, carrying out non-coherent accumulation of the sum channel data of each pulse in all pulses with the same scattering point target actual angle, obtaining the amplitude value of a scattering point target, and thus obtaining the amplitude values of all scattering points, which means that the front-view imaging of a space scattering point target and the scene of the space scattering point target is realized.

A method for correcting the image data representing the blood flow for the evaluation and quantitative representation of the blood flow in a tissue or vascular region is based on the signal of a contrast agent injected into the blood. Several individual images of the signal emitted by the tissue or vascular region are recorded and stored at successive points in time. At least two individual images are correlated and a shift vector is generated based on the correlation. Thereafter, the image data of the individual images are shifted in relation to each other according to the shift vector.