106 results about "Characteristic response" patented technology

The invention provides a method, system, and computer usable medium including a program for sponsoring customizing feed content. The method includes associating a user with a profile group based on characteristic response data; receiving at least one keyword from the user; determining whether feed formatted content contains the keyword; associating a sponsorship with the feed formatted content based on the keyword and the associated profile group; and providing the feed formatted content with associated sponsorship to the user based on the determination.

The invention relates to a multi-characteristic layered fusion correlation filtering robustness tracking method. In order to improve the robustness of target tracking, aiming at the multi-characteristic fusion problem in correlation filtering tracking, a multi-characteristic layered fusion strategy is provided. HOG characteristics, CN characteristics and color histogram characteristics are extracted from a target area and a surrounding background area respectively. A self-adaption weighting fusion strategy is adopted for integration of characteristic response diagrams of the HOG characteristics and the CN characteristics. A fusion result of a layer and the obtained characteristic response diagrams based on the color histogram characteristics are subjected to second-layer integration, a fixed parameter fusion strategy is adopted for fusion of the characteristic response diagrams. According to the method, under the premise that the tracking accuracy is guaranteed, the tracking robustnessis superior to other algorithms. When multiple characteristics are adopted for a correlation filtering tracking algorithm, the layered fusion strategy has certain reference.

A limit-cycle oscillation (LCO) based switch-mode power supply (SMPS) response evaluation provides an effective mechanism for determining the characteristic response of an SMPS during normal operation of the SMPS. LCOs are induced in the SMPS loop by introducing a non-linearity in the loop, for example, decreasing the resolution of a pulse-width modulator that controls the SMPS switching circuit. The frequency and amplitude of the LCOs are determined and used to evaluate the characteristic response of the SMPS. In order to produce symmetric LCOs, which are more easily modeled, a zero-offset calibration circuit adjusts values provided to the pulse-width modulator, so that each value introduced during calibration is at the midpoint of a resolution cell. The frequency can be measured by counting between zero-crossings of the LCOs and the amplitude measured by capturing the LCO values immediately prior to each zero-crossing of a first difference of the LCO samples.

A method of harvesting energy from a vibrational energy source having a varying energy characteristic. The method includes the step of varying a characteristic of a harvesting arrangement arranged to harvest the energy, the characteristic of the harvesting arrangement being varied in response to the varying energy characteristic of the vibrational energy source.

The invention discloses an adaptive anti-occlusion infrared target tracking method based on multi-layer depth feature fusion. Firstly, a series of multi-layer depth feature maps of the same size and different levels are obtained; the multi-layer depth feature map is then converted from a time domain to a frequency domain according to correlation filtering, a filter is trained and the response mapis calculated according to the fast Fourier transformation, and then the multi-layer depth feature map is merged and dimensionally reduced according to the weighted fusion of the intra-layer features,so that the feature response map of different levels is constructed and the maximum correlation response value is obtained, which is the estimated position of the target; at last, that dense featuresof the target are extracted, and the response confidence of the target center position estimated by the depth convolution feature is obtained according to the maximum response value of the feature obtained by the correlation filtering; when the response confidence of the target center position is less than the re-detection threshold T0, the obtained target estimated position is evaluated by on-line target re-detection and the position of the target is adaptively updated according to the evaluation result.

An information processing method includes the steps of: obtaining biometric information expressing biometric responses exhibited by a user during content playback; obtaining metadata for each content of which biometric information is obtained; identifying attributes linked to the biometric information within the attributes included in the obtained metadata and identifying, in the case of content wherein identified attribute values differ but the user exhibits similar biometric responses during playback, the different value of the attribute linked to the biometric information as a value not necessary to be distinguished; reconfiguring a profile by merging the information relating to the value which is identified which is not necessary to be distinguished, from the information included in the user profile; identifying recommended content based on the reconfigured profile; and presenting the identified recommended content information to the user.

An apparatus and method are provided for performing Quality Assurance of complex beams of penetrating radiation inside a patient. A detector with a transverse scintillating screen images the radiation inside a tissue phantom with high spatial resolution. The scintillator is comprised of a mixture of two or more scintillators emitting different spectra of light and having different characteristic responses as a function of the beam LET value. The optics relaying the scintillation output have variable transmission with wavelength, further shaping the spectrum of light transmitted to the imaging sensor which also has spectrally varying sensitivity. Parameters of the scintillator construction, the optics, and the imaging sensor are chosen so the output of the composite detector is proportional to a characteristic of the input beam, for example the dose deposited as a function of depth inside the tissue phantom.

The invention relates to a moving object tracking method based on multi-feature fusion, belonging to the field of computer vision. At first, in that first frame image, the target area is initialized,and two position filters are respectively train by using the direction histogram and the color features; secondly, the detection samples of two features are extracted around the target in the subsequent frame, and the correlation scores between the two detection samples and the position filters trained in the previous step are calculated respectively, that is to say, the response diagrams of different features are obtained. Thirdly, according to the peak sidelobe ratios of different characteristic response diagrams, the two characteristic response values are weighted and fused, and the point with the largest response value is selected as the current center position of the target. Then the scale pyramid training scale filter is constructed by using the directional gradient histogram feature, and the maximum response point is obtained as the current scale of the target. Finally, according to the peak-to-side ratio of the final response graph of each frame, whether occlusion occurs or notis judged. In the case of occlusion, the position filter is not updated.

Methods and systems for facilitating remote access and customization of internally generated printing node status reports. In some embodiments, the methods and systems advantageously facilitate remote access and customization of internally generated printing node status reports by adapting preexisting features that generate local hard copies of printing node status reports in response to locally initiated commands. Such adaptation enables a printing node to receive, process and respond to remotely initiated requests for printing node status reports in a manner that permits remote customization of the style of printing node status reports.

The embodiment of the invention provides a shielded face recognition method and device based on feature transformation, and the method comprises the steps: inputting a target face image into a presetconvolutional neural network model, and obtaining a feature map of the target face image from the last convolutional layer of the convolutional neural network model; Calculating a sub-pixel product ofthe feature map and a pre-obtained feature mask; And inputting the sub-pixel product into a feature layer of the convolutional neural network model, and outputting a feature for identification of thetarget face image. The embodiment of the invention provides a shielded face recognition method and device based on feature transformation. A feature transformation mode of adding a feature mask is adopted for an image of a shielded face, feature responses of common areas prone to being shielded of the face are abandoned, engineering implementation is easier, the calculation time is shorter, the network structure is simpler, and the recognition precision of the shielded face is improved.

The invention discloses a many-people abnormal behavior identification method based on a human body shape characteristic. The method comprises the following steps of rapidly carrying out target human body detection, using a lot of pedestrian sample gradient information to make a series of target human body detection filters so as to acquire a pedestrian detector of a group of filters, calculating a characteristic channel of an image to be detected, using the detector to calculate a characteristic response on each channel, and finally using an Adaboost classifier to acquire a final target human body position; using the human body shape characteristic and prior information of the acquired human body position, constructing an initial human body appearance model, and adopting an appearance transmission mechanism; using a Hoff shape characteristic extraction algorithm to extract a characteristic of each part of a human body from the appearance model and matching with an abnormal behavior sample database so as to acquire a final identification result. By using the method provided in the invention, under the condition that a background environment and a camera position are not certain, position calibration of many people can be realized and final abnormal behavior identification are realized too.

An appointed object tracking method disclosed by the present invention comprises the steps of obtaining the position information of a tracking target in a current frame, determining a first search area of the tracking target according to the position information, determining a first mixed characteristic according to the first search area, calculating a target template by taking the first mixed characteristic as the input, obtaining M second search areas of the tracking target in the next frame under the same position information, determining M respectively corresponding second mixed characteristic graphs according to the M second search areas, and calculating a characteristic response graph of the tracking target according to the target template and the second mixed characteristic graphs; determining the position of a characteristic point having the maximum filtering response in the characteristic response graph as the position of the tracking target.

The invention relates to a reservoir stratum prediction method. The method is characterized by through carrying out intersection analysis on logging data in a research area, determining effective parameters capable of distinguishing a reservoir stratum; comprehensively using earthquake data and the logging data to carry out forward simulation on the each acquired effective parameter respectively, correspondingly carrying out characteristic response analysis and determining an optimal parameter capable of distinguishing the reservoir stratum; carrying out reservoir stratum parameter inversion on the optimal parameter, determining a reasonable reservoir stratum prediction result according to an inversion result or comparing and analyzing a forward simulation result and the inversion result and then determining a reservoir stratum prediction result. By using the method, prediction precision is increased, exploration risks are reduced and workload is decreased. The method is an effective scheme of lithologic oil and gas reservoir stratum prediction.

The present invention relates to an infrared wave band meta material based on a dendritic structure, in particular to a flat plate sandwich type meta material formed by combining a metallic copper dendritic structure with a metallic silver granular film. The metallic copper dendritic structure and the silver granular film forming the meta material are obtained both by adopting the chemical electrodeposition method. The present invention uses the quasi-periodic metallic copper dendritic structure comprising a hexagonal split ring resonator structure to realize the magnetic resonance response of infrared wave band; the metallic silver granular film realizes negative dielectric constant on a corresponding infrared wave band, ensuring that the meta material formed by the combination of the metallic copper dendritic structure and the metallic silver granular film shows left-handed material characteristic response on the infrared wave band.

A method for determining integrity of annular seals in wellbores. In an embodiment, two wellbores are selected that extend through a common geological formation which is capable of sealing against casing sections located in the wellbores. A pressure test is typically carried out in a first of the wellbores to check that the formation provides an effective seal, and a logging tool is typically run to obtain well log data from which can be derived a characteristic response that is associated with the formation providing an effective annular seal around the casing section in the first wellbore. A logging tool may then be run in the second of the wellbores to obtain a second set of well log data, which are comparable with the characteristic response to determine whether the formation provides an effective annular seal in the second wellbore.

A method and systems are provided for screening and rapid evaluation of routed nets in a post-layout circuit environment, such as in the design of printed circuit boards. A portion of nets are selected for determination of associated signal quality factors. Signal channels containing one or more selected nets are then built. A reference input stimulus is propagated along each of the signal channels in a frequency based simulation for generating characteristic responses of the selected nets' signal channels. A signal channel quality factor is obtained for each signal channel based upon its characteristic response. The signal channels and their nets are then comparatively analyzed according to corresponding signal channel quality factors to selectively identify any aberrant nets warranting supplemental evaluation for faults.

The invention discloses a simultaneous monitoring method for welded steel truss structure fatigue failure process. The method comprises the following steps: step 1, damageable parts under structural material levels are confirmed through building a finite element model of a welded steel structure and conducting static analysis; step 2, feature response parameters of the damageable parts under each structural material level are confirmed and a corresponding testing scheme is set; step 3, a sensor location project and positions under each structural material level are confirmed, and measures of installing, debugging, noise reduction arrangement and disturbance releasing are finished; and step 4, fatigue loading is exerted to a structure, and welded steel truss materials, components, the failure process under the structural levels, the feature response and the evolution process with a fatigue cycle are monitored simultaneously through a plurality of testing technical means. Compared with a traditional and common structure failure assessment method, the simultaneous monitoring method is capable of reflecting the whole failure process of the structure and the feature response of each level comprehensively, and is beneficial for understanding and researching the failure process and failure mechanism of the structure.

The invention discloses an urban rainfall inversion algorithm based on microwave attenuation characteristic response fingerprint identification, includes the acquisition and preliminary processing ofmicrowave signals, the separation and classification of clutter signals, the establishment of clutter characteristic response fingerprint database, the identification and removal of clutter, rainfallinversion, scale matching of multi-source rainfall data, the optimization of model parameters and the real-time correction of inversion results. The invention can quickly judge and remove the influence of different types of clutter in the microwave attenuation signal under the urban environment, and provides urban multi-resolution rainfall big data with a spatial resolution of 100 meters-200 meters and a time resolution of 5 minutes-10 minutes.

A characteristic response of a medium to an excitation transient of predetermined duration which causes the medium to emit a series of signals over a period of time which is long relative to the duration of the excitation transient is assessed. The signals are detected and the duration of each interval between successive signals is measured. A relationship relating the interval between the excitation transient and the emission of each signal to the interval between each signal and the preceding signal in the series is derived to represent the characteristic response.