260 results about "Real-time scan" patented technology

A system and method for the imaging management of a 3D space where various substantially real-time scan images have been acquired is presented. In exemplary embodiments according to the present invention, a user can visualize images of a portion of a body or object obtained from a substantially real-time scanner not just as 2D images, but as positionally and orientationally located slices within a particular 3D space. In such exemplary embodiments a user can convert such slices into volumes whenever needed, and can process the images or volumes using known image processing and/or volume rendering techniques. Alternatively, a user can acquire ultrasound images in 3D using the techniques of UltraSonar or 4D Ultrasound. In exemplary embodiments according to the present invention, a user can manage various substantially real-time images obtained, either as slices or volumes, and can control their visualization, processing and display, as well as their registration and fusion with other images, volumes and virtual objects obtained or derived from prior scans of the body or object of interest using various modalities.

A portable device for the live scanning of fingerprint, facial and crime scene images and the wireless transmission of said images to a central host system for identity verification. The portable device has the ability to allow the user to operate the device with a single hand. It can scan and record live fingerprint slap or roll images (via optical, solid state, or video sensors). It also includes a baffle that assists with the mechanical alignment of the fingerprints on the fingerprint sensor receiving surface and prevents bright light sources from interfering with fingerprint scans. The portable device also can scan, display, and record latent fingerprint images. It also has other data receiving and transmission functions, such as displaying and recording facial and incident scene images in conditions ranging from well lit to total darkness, recording and playing back incident scene audio information for incident description and contacting voice recordings for identification. The portable apparatus can also scan, record, and interpret magnetic stripe, smart card, or bar code information from standard and non-standard cards. It also obtains, displays, and records geographical position for incident description, mapping, and directional instruction to the user. It further provides an emergency transmission for assistance and provides a short-range wireless link to a mobile unit or a direct wireless link to the central site. It also provides for entry by the user of text data for demographics or operator use through either keyboard or voice activation.

The invention relates to a train loading state high-definition monitoring and overloading detection method. The method comprises the following steps that a high-definition camera set is used for carrying out real-time monitoring, when the arrival of a train is sensed, the system automatically starts a video system, a linear array CCD (charge-coupled device) camera carries out real-time scanning, an overloading object is analyzed and alarmed, a binocular visual three-dimensional measuring camera is triggered to carry out binocular visual analysis on obtained train images, feature extraction, image matching and train limit contour comparison, then the overloading size and overloading class are obtained, meanwhile, an image analysis technique is adopted to intelligently identify the opening and closing of a box card door, the damage of a canvas and the deviation of cargos, and the abnormal conditions are alarmed and are stored into high-definition pictures. The method has the advantage that the train is monitored by the high-definition videos in the real-time way, the linear array CCD camera is combined to carry out scanning and detection, and the train contour is measured by the binocular visual three-dimensional measuring camera in the three-dimensional way, so the three-dimensional coordinates of the overloading object are obtained, the real-time overloading alarming is realized, and the overloading data and overloading class with accuracy reaching millimeter level can be accurately measured.

Said invention provides a method to realize time shifting function sow in network interactive tv ( IPTV ), system obtaining data from multicasting stream and putting in buffer zone , real time scanning buffer zone marking key frame. It promises a current system time reference time reference between Set-top box and stream medium server. When user given off skip forward, skip backwards, dragging, playing after pause etc request, set-top box exiting multicasting group, transmitting ordering request to stream medium server which responses request from set-top box and calculating time reference and client request required playing time difference finding out beginning playing position in buffer zone, then stream medium server relevant playing according to user different request, said invention can effectively complete skip forward, skip backwards, dragging time shifting function.

The invention relates to a photographing method and device, a memory medium and an electronic device. The method comprises the steps of obtaining first frame images scanned through a first camera module and/or a second camera module in real time, wherein the photosensibility of the second camera module is greater than that of the first camera module; comparing a plurality of first frame images anddetecting a scene mode of a current photographing scene; detecting luminance of a current photographing environment when the scene mode is a motion scene; and carrying out photographing through the second camera module when the luminance is in a preset brightness interval. According to the photographing method and device, the memory medium and the electronic device, the photographing definition can be improved.

The invention discloses a laser scanning method and device for helicopter collision avoidance. The device comprises a collision avoidance laser scanner device, a helicopter body pitch angle measuring device and a helicopter body; and the device can be used for scanning and imaging a ground obstacle in real time and timely providing the shape and distance information of the obstacle for a pilot. The state of a laser scanning point cloud is decided by two-dimensional motion, wherein the two-dimensional motion comprises sinusoidal swing in a pitch direction and conical laser scanning formed by rotating motion of a scanning mirror; and the laser point scanning track of circular rotating propulsion is generated by synthesizing two motions and a rectangular scanning strip is formed, so that the obstacle at lower front part of the helicopter can be detected at high resolution. When a pitch angle of the helicopter changes, a pitch angle value is obtained by the helicopter body pitch angle measuring device and is provided for a collision avoidance laser scanner controller, so that a swing angle in the pitch direction is controlled in real time, the change of the pitch angle is compensated, the laser scanning pitch field angle is kept unchanged relative to the local horizontal plane and the phenomenon of leaked scanning of the ground obstacle at the lower front part of the helicopter due to the influence from the pitch angle change is prevented.

A method, system, and computer program product is provided that controls platen movement during a live scan. The platen moves in response to finger movement. The present invention then applies a counter force that counters the platen movement. In one embodiment, the counter force has a magnitude which is a function of the speed of the platen movement. The platen can move in a lateral direction (right or left) in response to the finger. The direction in which the counter force is applied is a direction that counters the platen movement in a determined direction. In one example, the force is applied through a motor that drives the platen in a direction opposite the direction of movement caused by the finger or fingers during the live scan. In this way, the counter force which is applied helps prevent a user from moving a finger too rapidly during the live scan. As a result, a high-quality fingerprint image can be obtained with less training and experience in live scan fingerprinting. A user need not follow complicated live scan bars or other indications of a recommended speed or rate of platen movement.

The invention discloses an expressway vehicle sensing system and method based on space channel detection. An unmanned aerial vehicle space channel detection method is used, and expressway multilane and multi-vehicle real-time scanning detection is performed through a receiving and transmitting antenna array arranged at the bottom of an unmanned aerial vehicle detector. According to the analysis on the variation characteristics on a space moving channel, multi-dimensional parameters of the moving channel can be obtained in real time, and the position, the speed and the vehicle type of moving vehicles on an expressway are accurately estimated. The expressway vehicle sensing system and method based on space channel detection break through the limitation of vehicle sensing based on traditional sensors such as an infrared sensor and a video sensor, an advanced space moving channel detection and vehicle sensing technology is utilized, the all-weather vehicle sensing capacity in the intelligent transportation system application is improved, and the expressway rod vehicle sensing system and method based on space channel detection can be applied to the fields of intelligent transportation system air control, expressway traffic dispersion, after-calamity traffic guidance control, military exercise air monitoring and the like.

The invention relates to the field of three-dimensional reconstruction, in particular to a quick and robust RGB-D indoor three-dimensional scene reconstruction method, and aims to solve the problem that the indoor three-dimensional scene reconstruction efficiency cannot meet the demands. The method comprises the steps of scanning an indoor scene in real time by adopting an RGB-D camera; performingcamera real-time tracking based on a point line fusion camera tracking algorithm; performing reduction on camera tracks by detecting a camera state; and performing multi-scale voxel data fusion on anRGB-D image by utilizing reduced camera track information to generate a complete three-dimensional scene model. The complete indoor scene model can be obtained efficiently and accurately. A system has good robustness and expansibility.

The invention discloses a digital section real-time scanning and automatic focusing tracking method. According to the method, a scanning imaging device and a focusing imaging device are adjusted to have the same view fields; in the digital section scanning process, the focusing imaging device is used for tracking and obtaining the position of a focal plane of the view field rapidly in the movement process of an objective table, a dynamic local section surface mathematical model is built through a computer processing system, the focal plane of a nearby view field is predicted, through continuous dynamic analysis and focusing positioning, it is guaranteed that the scanning imaging device can also obtain a clear focal plane image of each view field in time in the movement process of the objective table, the focal plane position of the nearby view field can be tracked timely and predicted accurately according to the method, focusing action does not need to be performed repeatedly in the nearby view field, and only a single view field image of each view field where the objective table passes by needs to be captured in the continuous movement process of the objective table. The method is high in focusing accuracy, high in speed and capable of achieving rapid scanning and guaranteeing high-resolution digital section images.

A method, system, and program for security screening of electronic devices by device identifier are provided. A security scanning system detects an identifier from an electronic device. The identifier may be a radio frequency identifier or other type of identifier which is preferably detectable by the security scanning system regardless of the operating status of the electronic device. The security scanning system queries a database with the identifier for information about the electronic device. Responsive to receiving the information about the electronic device from the central database, at least one real-time scanned characteristic of the electronic device is compared with this information. The information includes characteristics of the components of the electronic device and an x-ray overlay of the electronic device. If the real-time scanned characteristics and the information match, then electronic device is designated as secure.

The invention discloses a digital slide real-time scanning automatic focus system and method. The system comprises an optical microscope device, a dispersion prism, a focus controller, a displacement controller, a first imaging device and a second imaging device, wherein the focus controller adjusts the first imaging device and the second imaging device so that the first imaging device and the second imaging device can have a common view field. The dispersion prism splits a light path from the common view field into a first light path and a second light path. The first imaging device receives the first light path and forms a first image, and the second imaging device receives the second light path and forms a second image. The displacement controller estimates the position of a focus face of the next view field according to focus factor analyzing results of the two images of the current view field, and controls an object stage or an object lens to move to the next view field, so that the object stage or the object lens moves to the focus face of the next view field. According to the scheme, the digital slide real-time scanning automatic focus system is well compatible with a traditional optical microscope device, and repeated development is needless. Besides, the digital slide real-time scanning automatic focus system and method can obtain the best focus face quickly, and the obtained focus face is high in precision.

The invention discloses a WIFI network access method, a WIFI network access device and a terminal. The WIFI network access method comprises the following steps: detecting whether a terminal is converted from a closed state to a start state or not, and if so, starting scanning of wireless WIFI hotspots and scanning the wireless WIFI hotspots in real time; storing scanned available WIFI hotspots in a WIFI storage region, and comparing and analyzing to select an available WIFI hotspot having the strongest signal as the first choice WIFI hotspot; and automatically starting WIFI connection after identifying the first choice WIFI hotspot, establishing connection between the terminal and the first choice WIFI hotspot, and accessing to a WIFI network. By means of the technical scheme, WIFI scanning is started when the terminal is started; WIFI connection is automatically started after the first choice WIFI hotspot is identified; users can be accessed to the WIFI network without manually starting WIFI scanning or WIFI connection; therefore, manual operation of the users is reduced; and the user experience is greatly improved.

The invention discloses a digital slide real time scanning automatic focusing system and a method thereof. The focusing system comprises an optical microscopic device, an optical spectral device, a focusing controller, a displacement controller, a first auxiliary imaging device and a second auxiliary imaging device, wherein a main imaging device, the first auxiliary imaging device and the second auxiliary imaging device are adjusted by the focusing controller to provide the main imaging device, the first auxiliary imaging device and the second auxiliary imaging device a common field of view, the spectral device is used for dividing a light path from the common field of view into a main light path, a first auxiliary light path and a second auxiliary light path, the focusing controller performs comparative analysis according to focusing factors of a first image, a second image and a main image, the displacement controller estimates the position of a focal plane of next field of view according to the analysis results of the focus controller for three images in the present field of view, and simultaneously the displacement controller controls an object holding stage or an object lens to move to the next field of view. By means of the scheme, compatibility with traditional optical microscopic devices is good, repeated development is not required, fast acquisition of an optimum focal plane is achieved, and accuracy of the acquired focal plane is high.

The invention discloses a liver operation navigation method and system based on structural light scanning. The method comprises the following steps: reconstructing a three-dimensional image of a liver surface of a patient before an operation according to CT images, finding a focus point, and planning an operation path; projecting coded structural light to the liver surface of the patient in the operation, scanning the liver surface of the patient in real time, acquiring scanning information in real time, reconstructing the liver surface of the patient in real time, and displaying a reconstructed three-dimensional image on a 3D display; registering the pre-operative CT reconstructed three-dimensional image and the intra-operative real-time reconstructed three-dimensional image to find out the accurate position of the focus point; outputting the registration parameters through real-time registration in the operation, correcting the pre-operation operation path planning in real time, and displaying the real-time corrected operation path on a 3D display; and acquiring the position information of a surgical instrument and the liver of the patient in real time during the operation so as to correct the position of the surgical instrument in real time. The method has the advantages of strong stability, high accuracy and real-time performance.

Deep packet inspection (DPI) techniques are utilized to provide data compression, particularly necessary in many bandwidth-limited communication systems. A separate processor is initially used within a transmission source to scan, in real time, a data packet stream and recognize repetitive patterns that are occurring in the data. The processor builds a dictionary (ruleset), storing the set, of repetitive patterns and defining a unique token ID to be associated with each pattern. Thereafter, the DPI engine uses this ruleset to recognize the repetitive data patterns and replace each relatively long data pattern with its short token ID, creating a compressed data packet.

The invention provides a shared bicycle interaction method and system, and relates to the technical field of communication. The technical problems that shared bicycles are fussy to unlock and not fast enough and the user experience is influenced in the prior art can be solved. Convenient and fast unlocking can be realized; the unlocking efficiency can be increased; the user time can be saved; and the user experience can be improved. The method comprises the steps of: scanning a user terminal in a specific range around in real time; when a shared bicycle scans the user terminal, sending a connection request to the user terminal; and, when a shared bicycle chip receives an interaction request sent by the user terminal, establishing the connection relationship with the user terminal, and unlocking automatically.

The invention discloses a method and system for carrying out the parallel spatial analysis service based on spatial data. The method comprises the step of obtaining basic spatial data information of a target object in real time and generating a corresponding parallel task request, the step of encrypting the obtained spatial information and storing the encrypted spatial data information to a distribution type database, the step of scanning the distribution type database in real time to obtain the parallel task request and extracting basic spatial data information of the target object in real time according to the parallel task request, the step of carrying out the parallel analysis service on the extracted basic spatial data information of the target object through a distribution computer server and storing an analysis result into the distribution type database, and the step of sending a spatial analysis result to the target object. According to the method and system, a target object user can easily use the expected spatial analysis service through the parallel spatial analysis service, meanwhile the big data analyzing time can be greatly shortened through the parallel computing capacity, and the method and system have the advantage of being high in efficiency.

The present invention is one platform system for tracking and monitoring computer business system of various trade, and belogns to the field of computer information guard technology. The said system has the main composition parts of data acquisition nodes connected to the control server with probe; control server comprising business data base, real-time analyzer, post-analyzer, post-data analysistool, automatic report tool and audit regulation library; and branch control station. The present invention makes it possible to perform real-time audit and thus to prevent avoid computer crime and to ensure business safety.

The invention discloses a method for processing business data, a device and a system. In the method, a business server real-timely scans the business data in business source equipment and obtains the updated business data in the business data; and the obtained updated business data are broadcast to various business processing middlewares so as to facilitate the business processing middlewares to update the local business data and to further support the query of the latest business data at the business client side. The method, the device and the system can support the user to query the latest business data through the client side.

The invention provides a linear online seam tracking method for an arc welding robot during welding. According to the method, the robot demonstrates a section of standard path, the path is equally divided into N path points according to the distance equidistribution principle, and standard coordinate values of a measuring sensor are acquired at the same time; during actual operation, the measuring sensor scans a seam in real time and transmits seam coordinates to the robot; and the robot compares the coordinate values with the standard values to obtain deviation values and then corrects the corresponding n path point, and the robot operates along the corrected path points point by point. According to the method, the scheme is simple and accurate, and the problem that the robot welding effect is affected by changes of a linear seam track due to workpiece errors or loading position errors and the like is effectively avoided. Meanwhile, the problem of low tracking precision caused by not considering prepositive distances in the same kind of operations is solved.

The invention discloses an IPV6 active address dynamic discovery method, and aims to solve the problems of relatively low accuracy and relatively low speed of an existing IPV6 active address discoverymethod. According to the technical scheme, an IPv6 address is converted into a High-decimal vector, and a spatial tree is generated by using a top-down split hierarchical clustering method for a vector corresponding to a known active address, that is, a seed vector set. The spatial tree is used to predict the value variability of different dimensions according to the effective address density value of the seed vector after each dimension expansion after the split hierarchical clustering process. A search direction from the leaf node is provided to the root node path. The invention can dynamically adjust the direction based on the real-time scan result and the space tree to quickly obtain the next scan target address on the path where more active addresses are found, so as to improve the accuracy and speed of the active address discovery.