397 results about "Spatial extent" patented technology

Information presentation system comprises a computer device having a display terminal for providing a graphical user interface (GUI), capable of generating a cluster of items comprising graphical or textual elements for display thereof according to a fractal appearance. Each item in a cluster represents information having a degree of relatedness with information represented by other items in a cluster. A control mechanism is provided for controlling the spatial extent, nesting and arrangement of items within a cluster according to a specified criteria, which spatial extent and arrangement is controlled to provide optimal display and conserve screen display space on the display terminal. Users may manually enter a criteria for organizing and adjusting the spatial extent of a cluster in order to provide continuous display space on the computer display terminal. The invention may be implemented in text editors to provide a multiresolution annotation feature for portable and lap/palm-top computer devices having pen-based or keyboard based inputs.

The present invention relates in general to coupling of light from one or more input waveguides to an output waveguide or output section of a waveguide having other physical dimensions and/or optical properties than the input waveguide or waveguides. The invention relates to an optical component in the form of a photonic crystal fibre for coupling light from one component/system with a given numerical aperture to another component/system with another numerical aperture. The invention further relates to methods of producing the optical component, and articles comprising the optical component, and to the use of the optical component. The invention further relates to an optical component comprising a bundle of input fibres that are tapered and fused together to form an input coupler e.g. for coupling light from several light sources into a single waveguide. The invention still further relates to the control of the spatial extension of a guided mode (e.g. a mode-field diameter) of an optical beam in an optical fibre. The invention relates to a tapered longitudinally extending optical waveguide having a relatively larger cross section that over a certain longitudinal distance is tapered down to a relatively smaller cross section wherein the spatial extent of the guided mode is substantially constant or expanding from the relatively larger to the relatively smaller waveguide cross section. The invention may e.g. be useful in applications such as fibre lasers or amplifiers, where light must be coupled efficiently from pump sources to a double clad fibre.

A system including a recording head that includes a magnetic pole and a field assist source positioned adjacent the magnetic pole. The system further includes a recording medium positioned adjacent the recording head. In one aspect, the recording medium includes a magnetic recording layer wherein the magnetic recording layer has a damping value in the range of about 0.01 to about 0.20. In another aspect, the magnetic pole applies a write field to the recording medium at an angle in the range of about 15 degrees to about 30 degrees from an anisotropic axis of the magnetic recording layer and the field assist source applies a write assist field substantially in a plane perpendicular to the anisotropic axis of the magnetic recording layer. In another aspect, the field assist source has a spatial extent of about 12 nm to about 30 nm. In another aspect, the field assist source applies a circularly polarized write assist field substantially in a plane perpendicular to the anisotropic axis of the magnetic recording layer.

The invention provides a three-dimensional measuring system, a photographing device, a photographing method, a depth calculation method and a depth calculation device. The photographing device comprises a projection device, a first imaging unit and a second imaging unit, wherein the projection device is used for projecting discrete beams to a photographing area, the discrete beams are modulated to form a plurality of discrete spots in the photographing area, and the discrete spots can be recognized by other discrete spots in a peripheral preset space range; the first imaging unit is used for photographing the photographing area to acquire a first two-dimensional image; the second imaging unit and the first imaging unit have a predetermined relative position relation, and the second imaging unit is used for photographing the photographing area to acquire a second two-dimensional image. Therefore, under the situation of not being subjected to the influence of the ambient light and the background, the spatial depth information of a detected object can be accurately acquired. For example, when the detected object is arranged in an environment with a single background or in an environment with similar background textures, the spatial depth information of the detected object still can be accurately obtained.

The present disclosure is directed towards systems and methods for improving anomaly detection using injected outliers. A normalcy calculator of a device may include a set of outliers into a training dataset of data points. The normalcy calculator, using a K-means clustering algorithm applied on the training dataset, identify at least a first cluster of data points. The normalcy calculator of the device may determine a region with a center and an outer radius that covers at least a spatial extent of the first cluster of data points. The normalcy calculator may determine a first normalcy radius for the first cluster by reducing the region around the center until a point at which all artificial outliers are excluded from a region defined by the first normalcy radius. An outlier detector of the device may use the region defined by the first normalcy radius to determine whether a new data point is normal or abnormal.

Computer-implemented method for enhancing cognition of a participant using visual search. A target image and distracter image are provided for visual presentation. Multiple images, including the target image and multiple distracter images based on the distracter image, are temporarily visually presented at respective locations, then removed. The participant selects the target image location from multiple locations in the visual field, and the selection's correctness/incorrectness is determined. The visually presenting, requiring, and determining are repeated to improve the participant's cognition, e.g., efficiency, capacity and effective spatial extent of a participant's visual attention. In a dual attention version, potential target images differing by a specified attribute are provided, one of which is the target image. An indication of the specified attribute is also displayed. The participant selects the location of the target image from the multiple locations, including the locations of the potential target images, based on the indication.

An integrated circuit that includes an optical waveguide defined in a semiconductor layer is described. In this integrated circuit, light is coupled between the optical waveguide and an optical modulator, which is disposed on the optical waveguide, using 3-dimensional (3-D) taper structures that are proximate to the ends of the optical modulator. The cross-sectional areas of these 3-D taper structures transition, over a distance, from that of the optical waveguide (distal from the optical modulator) to that of optical modulator (proximate to the ends of the optical modulator). In this way, a spatial extent of an optical mode in the optical waveguide and a spatial extent of the optical mode in the optical modulator may be approximately matched to reduce the optical loss when the light is coupled to or from the optical modulator.

The invention relates to a rod-shaped object regular three-dimensional modeling method and rod-shaped object regular three-dimensional modeling system based on density peak clustering. The rod-shaped object regular three-dimensional modeling method comprises the steps of performing voxel resampling on original point cloud data which are acquired by an on-vehicle laser radar, eliminating outliers, performing mesh segmentation on a scene point cloud, performing ground point elimination and high-rise point elimination on each grid through elevation straight-through filtering, and respectively performing projection on three coordinate planes of a three-dimensional coordinate system; respectively clustering in three projection planes on each grid in a clustering manner based on a density peak and a distance attribute; limiting the spatial range of the point clouds in a same kind by a regular spatial cubic bounding box, extracting the rod-shaped object in the spatial cubic bounding box according to priori knowledge, and obtaining a rod-shaped member characteristic parameter; and performing modeling for restoring the rod-shaped object. The rod-shaped object regular three-dimensional modeling method and the rod-shaped object regular three-dimensional modeling system can perform quick, efficient and accurate extraction on rod-shaped objects in a majority of environments and integrate with a digital city, thereby realizing fine and true modeling on the rod-shaped objects in the digital city.

The invention discloses a traffic-wave theory-based traffic influence area determining method of expressway accidents, which is used for determining space-time influence areas of traffic accidents after the traffic accidents happen on expressways without inlet and outlet ramps. The traffic influence area determining method comprises the following steps of: firstly determining traffic flow and traffic density of the expressways under different traffic conditions, drawing an expressway flow-density map, and then analyzing an accumulating and evanishing process of traffic waves in a process fromthe beginning of the accidents to the elimination of accident influence by using the traffic-wave theory, calculating a traffic wave speed of each stage, drawing a space-time evolution map of the traffic accidents, and finally determining influence time ranges and space ranges of the accidents in each stage. The traffic influence area determining method is simple and convenient and has good stability and high reliability; and according to the traffic influence area determining method, the influence area of the traffic accidents can be timely and accurately forecasted, and stable, timely and reliable traffic accident information can be supplied to the administrative department of the expressway, thereby the implementation efficiency of a rapid traffic accident disposing measure is improved.

Sharpening of edges in digital images without introducing unwanted artifacts is accomplished by first sharpening the digital image using a conventional sharpening filter. The digital image is separately processed with dilation and erosion operators to respectively grow the spatial extent of bright regions and shrink the spatial extent of bright regions. The sharpened, dilated and eroded images are then combined to produce a sharpened image that preserves the sharpened spatial transitions at the edges while suppressing the local contrast enhancement and any ringing.

An improved method is disclosed for collecting or assembling scalar potential data measurements that are to be subsequently prepared as a surface representation for analysis via frequency domain transform filters. Measurements are made over a geographic reference region which extends in all cardinal directions from the center of some previously determined primary region. The reference dimensions must contain the primary region and must be plural multiples of the greatest depth to be considered in analyzing the contributions to the measurements. A combined or separate improved method for delineating or defining geospatial information contributing to a scalar potential surface is disclosed. This method is implemented using traditional statistical techniques to construct an histogram from the set of values comprising a surface representation. This histogram constitutes a Spatially Correlated Potential Spectrum for the surface. These combined and separate methods improve resolution of geological structures over depths and spatial extents under consideration.

An inline measuring apparatus (10) is operable to measure hydrate, wax, break-through of formation water and/or scale (150) on an inside surface of a wall (100) of a pipe (40) for guiding fluid. The apparatus (10) includes an electronics unit (30) coupled to a sensor arrangement (20) disposed in a spatial extensive manner into the wall (100) of the pipe (40) for sensing the growth (150). The electronics unit (30) in cooperation with the sensor arrangement (20) Is operable to perform a series of dielectric measurements at a plurality of interrogating frequencies for determining a nature and spatial extent of the growth (150). The sensor arrangement (20) includes a plurality of sensors have mutually different sensing characteristics in relation to their spatial sensing region and/or their sensitivity to different fluid components present in operation within the pipe (40). Optionally, the apparatus (10) is capable of being operated synergistically in a plurality of different operating modes which enables detection of thin film formation at an inside wall of the pipe (40) as well as a measurement of bulk properties of fluid present within the pipe (40).

In one embodiment, an efficient method is presented for aerial searching for a small thermal target in a search area, such as a single person in open water, using two thermal imagers or “cameras” coupled with a computer which presents data from the system to a human user for inspection. One of the two thermal imagers has a very wide field of view (WFOV) fixed forward of or below the aircraft. The other, narrow field-of-view (NFOV) imager has a high zoom capability but its field of view can be reoriented to geo-point to a location on command. The WFOV thermal imager collects images rapidly so that no individual image is blurred due to changes in the field of view (FOV) on the time-scale of the image capture. The images are geo-registered using information from a global positioning receiver as well as the current altitude, roll, pitch, yaw, and velocity of the aircraft. As the aircraft moves and the FOV in the WFOV thermal imager changes, the computer averages the amplitude of the thermal radiation detected from each geo-registered position on the water below using the captured images continuously and in real time. The signal from a thermal target in the water is integrated while the background is relatively suppressed, enhancing the signal-to-noise ratio for the target as the square root of the number of images collected in which the target appears. A target which is much smaller than the area covered by a single pixel or that even has a thermal contrast below the noise equivalent temperature difference of the WFOV thermal imager can be detected. Thermal anomalies which have a signal commensurate in amplitude and spatial extent to the object of the search are selected by the system and their coordinates are relayed to the NFOV thermal imager. The NFOV thermal imager zooms into these locations sequentially and presents the image information to the human user who can then either reject or verify that the subject being imaged is the object of the search.

The invention provides a space-time geographic big data retrieval method and system. The method comprises: when space-time data are stored, generating space-time codes according to the space-time data and then storing the codes in a database, wherein the space-time data include a space attribute and a time attribute; when the space-time codes are generated, calculating the ranges of leaf nodes of binary trees of three dimensions of longitude, latitude and time, and crossly coding binary codes of the longitude, the latitude and the time; and when a space-time range query is made, performing conversion according to time and space ranges required to be queried to generate corresponding space-time codes and then performing character string fuzzy matching on the generated space-time codes and the space-time codes stored in the database to obtain a query result. The space-time geographic big data retrieval method and system are suitable for indexing massive space-time data; and time information is fused with space information, so that space-time dimensions are reduced and the efficiency of space-time query can be greatly improved.

The invention aims at providing a method for collecting spatial population distribution in real time on the basis of mobile phone big data and realizing large passenger flow early warning. The method is characterized by comprising the following steps of obtaining real-time mobile phone big data from a mobile phone communication operator at each statistics moment; dividing a target region into different space regions; at the current statistics moment, mapping the latest space position of each EPID (Electronic Portal Imaging Device) obtained in the first step to each space region of the target region; and obtaining the real population size (the distribution condition of the total population in the whole target region) in each space region at the current statistics moment. The method has the advantages that the sufficient relying on the existing mobile phone big data resources is realized; the continuous encrypted position information of the existing mass anonymous mobile phone users in the mobile communication network is used; the low-cost high-frequency and automatic implementation can be realized; and the popularization distribution data in a large-range urban space range can be continuously obtained in a fast deploying way.

The invention relates to a block chain spatio-temporal data query method and system and electronic equipment. The method comprises the following steps of: a, inserting spatio-temporal data in a blockchain system into a Merkle tree and kd tree combined tree index structure, storing the spatio-temporal data in a block chain module, and for each block in the block chain module, importing tempon information in a block head; b, giving a corresponding time range and a corresponding space range for the spatio-temporal data, and searching blocks according with the time range in a topological structure G of a directed acyclic graph by utilizing the tempon information in the block head of each block in the block chain module; and c, reading root node information, in the block heads of the blocks according with the time range, of the Merkle tree and kd tree combined tree index structure, searching key data according with the spce range, and obtaining corresponding spatio-temporal data accordingto the key data. The method is efficient and is capable of rapidly returning results according with given requirements in an online manner.

The invention discloses an organization and management method for space-time map tile data. The method includes the steps that parameter information of an original image is set or read, wherein the parameter information includes the tile hierarchy, start row number, start column number, terminal row number, terminal line number, shooting time, spatial range, proportional scale, map output format, tangent graph start and terminal point coordinates and version information in a pyramid model; each layer of image in the pyramid model is corrected; a database model is established with the tile hierarchy, shooting time and spatial range as the index; the parameter information of all the layers of tiles is correspondingly stored, and a time node mirror image version is established. According to the method, the map cutting scheme and data structure of an existing map cutting tool are expanded and optimized, the process of space-time electronic map production and incremental updating is constructed, the working efficiency of tile production, updating and issuing is improved, the server resource consumption and cost are effectively reduced, the requirement of redundant data for a large disk space is lowered, and the method is compatible with an international standard format and a mainstream tile generation tool.

The invention discloses a structural imaging method for processing reflected wave seismic data in an undulating surface area. The method comprises the steps of: carrying out spline interpolation on root-mean-square velocity on a discrete point for three times; correcting initial timing lines of all seismic data waiting for deviation to a stacked imaging reference surface of common midpoints; carrying out prestack time migration by different migration apertures, selecting the migration aperture with the optimal effect; calculating an imaging range of a seismic channel to be deviated in a deviation result space, calculating imaging of common imaging points at the position of each imaging point in the imaging space range, calculating ray travelling time, and carrying out integral summation, and finishing kirchhoff prestack time migration of each seismic data in an original data space. According to the method, the effect of topografic relief on the kirchhoff prestack time migration is overcome, and the adaptability of the kirchhoff prestack time migration imaging method on the terrain is expanded to all earth surfaces.

A method for decomposing digital medical images includes providing a digital medical image, segmenting the image into one or more biological structures, extracting one or more segmented biological structures from the image by extracting all voxels within a spatial extent of each of the biological structures to construct one or more new component volumes of the biological structures. For each of the one or more new component volumes, generate a sequence of 2-dimensional projective views by moving a projection viewpoint around each the biological structure in the one or more new component images, and generate a 2-dimensional projective view from each viewpoint, and display a cine loop of the sequence of projective views where the biological structures appear to be rotating in the display.

A computer implemented method for examining the appearance of a printed object within a virtual environment is provided. A graphic designer or other user defines the shape and substrate of the object and the sequence and spatial extent of surface processing operations that are to be applied to the object. The method models the result of applying each surface processing operation in sequence.