2135 results about "Acquisition apparatus" patented technology

An image acquisition sensor of a digital image acquisition apparatus is coupled to imaging optics for acquiring a sequence of images. Images acquired by the sensor are stored. A motion detector causes the sensor to cease capture of an image when the degree of movement in acquiring the image exceeds a threshold. A controller selectively transfers acquired images for storage. A motion extractor determines motion parameters of a selected, stored image. An image re-constructor corrects the selected image with associated motion parameters. A selected plurality of images nominally of the same scene are merged and corrected by the image re-constructor to produce a high quality image of the scene.

A speaker array and microphone arrays positioned on both sides of the speaker array are provided. A plurality of focal points each serving as a position of a talker are set in front of the microphone arrays respectively symmetrically with respect to a centerline of the speaker array, and a bundle of sound collecting beams is output toward the focal points. Difference values between sound collecting beams directed toward the focal points that are symmetrical with respect to the centerline are calculated to cancel sound components that detour from the speaker array to microphones. Then, it is estimated based on totals of squares of peak values of the difference values for a particular time period that the position of the talker is close to which one of the focal points, and the position of the talker is decided by comparing the totals of the squares of the peak values of the sound collecting beams directed to the focal points that are symmetrical mutually.

An efficient method and system to enhance digital acquisition devices for analog data is presented. The enhancements offered by the method and system are available to the user in local as well as in remote deployments yielding efficiency gains for a large variety of business processes. The quality enhancements of the acquired digital data are achieved efficiently by employing virtual reacquisition. The method of virtual reacquisition renders unnecessary the physical reacquisition of the analog data in case the digital data obtained by the acquisition device are of insufficient quality. The method and system allows multiple users to access the same acquisition device for analog data. In some embodiments, one or more users can virtually reacquire data provided by multiple analog or digital sources. The acquired raw data can be processed by each user according to his personal preferences and/or requirements. The preferred processing settings and attributes are determined interactively in real time as well as non real time, automatically and a combination thereof.

In order to characterize the optical characteristics of a device, a source of light having a variable frequency with a polarization state which varies linearly with frequency is provided as an input to the device under test. The input light is also passed through a known reference path and is added to the light output from the device under test in a beam combiner. The combined light for the frequencies of interest is split into two orthogonal polarizations which are then detected in a spectral acquisition apparatus and supplied to a microprocessor. The spectral measurements are digitized and curve-fitted to provide optical power versus optical frequency curves. Fourier transforms of each of the curves are calculated by the microprocessor. From the Fourier transforms, the four arrays of constants are calculated for the Jones matrix characterizing the device under test.

A 3D image acquisition apparatus comprises a pattern projection section which projects a pattern on an object to be measured, an imaging section which is disposed at a distance from the pattern projection section and images the object on which the pattern has been projected, and a depth calculation section which detects the projection pattern projected on the object on the basis of an image acquired by the imaging section, collates the detected pattern and the projected pattern, and calculates a depth of respective parts of the object on the basis of the correspondency of the collation. The projected pattern is stripes/matrix formed by alternately arranging areas with local maximum/minimum luminance values. Thus, stripes/matrix boundaries can be exactly extracted from the pattern projection image, and correct decoding is performed from the encoded projection image even where the object is not a white-based color one or a low-saturation color one.

Certain embodiments of the present invention provide a method and system for improved registration of image and navigation references used in image-guided operations. Certain embodiments of the system include an image acquisition device for obtaining at least one image of an object, a first calibration fixture positioned in relation to the image acquisition device, and a second calibration fixture positioned in relation to the object. The position data from first calibration fixture is used to form a characterization of the image acquisition device, which is corrected by position data from the second calibration fixture. In an embodiment, a first calibration fixture is affixed to a C-arm camera and a smaller second calibration fixture is affixed to a patient. Data from the first and second calibration fixtures is used with tracking data to calibrate the image acquisition data and register reference points in image and navigation reference frames.

The embodiment of the invention provides a system, a method and an apparatus for remote representation, the system comprises: a plurality of displays for displaying remote images; an audio output apparatus for outputting information of a remote audio; a multimedia communication terminal for processing and controlling locally- and remotely-obtained audio/video information; a plurality of video cameras for taking local video images and sending the taken video images to the multimedia communication terminal for being processed; an audio acquisition apparatus for acquiring local audio information and sending the acquired audio information to the multimedia communication terminal; and a plurality of user locations that are corresponding to the plurality of video cameras one by one and have an approximate vertical relationship with respect to optic axes of cameras of the plurality of video cameras, respectively. Using the inventive technical proposal solves the problems of lacking consistence of conference experience and poor experience effect in multimedia communication.

The invention discloses an intelligent express mail sending access system and solution scheme based on Internet of things and a two-dimensional code technology. The intelligent express mail sending access system provided by the invention is realized in such a way that the intelligent express mail sending access system is composed of a user mobile phone, an equipment host, a system background server, a courier hand-held terminal and an express delivery carrier background server, wherein the equipment host comprises a mainframe box, a power source, a touch screen control apparatus, a video image acquisition apparatus, a two-dimensional code reading apparatus, an identity card information acquisition apparatus, a printing/sealing apparatus, a weighing apparatus, an information display apparatus, and an industrial control PC which is connected with the aforementioned function parts and the background server and has equipment control, instruction execution, information interaction and storage functions.

Provided are a rolled fingerprint acquisition apparatus and method for automatically detecting the start and end of registration and synthesis to acquire an accurate fingerprint. The rolled fingerprint acquisition apparatus compares at least one of fingerprint characteristic information and the amount of variation between the fingerprint characteristic information to reference fingerprint characteristic information to determine whether to start or end registration and synthesis, wherein the fingerprint characteristic information is information about fingerprints included in rolled fingerprint frames that are sequentially acquired, and registers and synthesizes the rolled fingerprint frames according to the result of the determination.

Provided are a three-dimensional (3D) image acquisition apparatus, and a method of generating a depth image in the 3D image acquisition apparatus. The method may include sequentially projecting a light transmission signal, which is generated from a light source, to a subject, modulating reflected light, which is reflected by the subject, using a light modulation signal, calculating a phase delay using a combination of a first plurality of images of two groups, from among a second plurality of images of all groups obtained by capturing the modulated reflected light, and generating a depth image based on the phase delay.

The invention discloses a projection-type billiard training system and an implementation method thereof. The system comprises a billiard table, an image acquisition apparatus, a billiard lamp, and a projection apparatus, wherein the head end of the image acquisition apparatus mounted in the billiard lamp is flush with the lower end of the lamp, and is suspended at a certain high position above the billiard table to be over against the center of the billiard table; and the projection apparatus is hung beside the billiard lamp and is controlled by a computer. The system implementation method comprises the following steps of: establishing a standard database of training courses and the related video files; reading the above data and files by selecting junior training course to senior training course when the system program runs, and displaying the desired images, such as demonstration video, auxiliary lines, ball positions, aim point and simulated motion trajectory of the cue ball and the target ball through the projection apparatus; and capturing shot video when training according to the video, inputting the shot video to the computer for analysis, and giving suggestions for the next shot by the image acquisition apparatus. The projection-type billiard training system is more scientific, accurate, intuitional and convenient in billiard training, thereby improving the shot accuracy and the cue ball control capability.

The invention discloses a chronic disease health management system and method. The system comprises a health monitoring and acquisition apparatus, an information acquisition and processing module, a management module, a terminal device and a real-time tracking and monitoring module, wherein the health monitoring and acquisition apparatus acquires health information of a chronic disease patient and generates health data; the information acquisition and processing module processes, analyzes and assesses the acquired health data and generates analysis and assessment result data of the chronic disease patient; a management scheme is generated through the management module and sent to the terminal device so as to perform intervention management on the chronic disease patient; and the real-time tracking and monitoring module tracks and monitors the health information of the chronic disease patient in real time, evaluates an intervention management feedback effect and continuously adjusts and perfects the management scheme. According to the system and method, effective management can be carried out for dangerous factors of chronic disease crowds and professionalized and personalized 8S health management schemes can be provided for chronic disease patients.

The invention relates to an identity authentication device adopting palmprint and human face fusion recognition, which comprises an image acquisition module, a main processing module and a memory module, wherein the main processing module further comprises a control unit which is electrically connected with the image acquisition module, a human face recognition unit and a palmprint recognition unit which are respectively connected with the control unit, and the memory module which is respectively connected with the human face recognition unit and the palmprint recognition unit. The image acquisition module is used for time-division shooting of biological characteristic images according to a command of the control unit and sending the shot biological characteristic images to the control unit, and the biological characteristic images comprise a human face image and a palmprint image. The control unit is used for sending the shot images to the corresponding human face recognition unit or the palmprint recognition unit for recognition and judging whether identity authentication passes or not according to the human face recognition result and the palmprint recognition result. The problem of needing two acquisition devices for performing double biological characteristic identity authentication is solved, the safety is high and the cost is low.

A 3-dimensional (3D) image acquisition apparatus and a method of calculating depth information in the 3D image acquisition apparatus, the 3D image acquisition apparatus including: an optical modulator for modulating light reflected from a subject by sequentially projected N (N is 3 or a larger natural number) light beams; an image sensor for generating N sub-images by capturing the light modulated by the optical modulator; and a signal processor for calculating depth information regarding a distance to the subject by using the N sub-images.

In particular for a solid-state image sensor with high resolution, a control line is not driven at any of two end points of the control line, but the control line is driven at two arbitrary dividing points on the control line. Preferably, two points on control line whose distance from a closer end of a range in which skew is to be suppressed is equal to ¼ of the total length of the range may be selected as the dividing points at which the control line is driven. In this case, the time constant at points farthest from the driving points becomes ¼ of that which occurs when the control line is driven at both end points thereof and 1/16 of that which occurs when the control line is driven at one end point thereof, and thus, theoretically, the skew can be reduced to ¼ or 1/16 of that which occurs when the control line is driven at both end points or only one end point.

The invention discloses a wind-generator blade defect damage inspection method and an inspection system based on an unmanned helicopter. According to the method and the system, acquisition apparatuses for light, heat and sound signals are arranged on a small-size unmanned helicopter, the unmanned helicopter is controlled to approach a blade on a wind turbine tower in a wind farm for acquiring the light, heat and sound signals of the blade and recording or sending back the signals, so that a ground worker can analyze the blade state and timely discover blade damages and defects and adopts corresponding measures, and thus the operation reliability of blades is improved, and major accidents such as fracture and falling off of a blade and the like are prevented from generating. The inspection system comprises the small-size unmanned helicopter, a controller, a minitype visible-light image gatherer, a minitype thermal infrared imager, a sound sensor, a distance sensor, a signal emission device and a signal reception and processing device. The inspection system is capable of acquiring the light, heat and sound signals of blades in a close range, is accurate and reliable in information, convenient to operate and short in inspection time.

An image-taking apparatus has an image sensor for converting an optical image into an electrical signal, and a taking lens system for forming the optical image on the light-receiving surface of the image sensor. The most object-side surface of the taking lens system is an aspherical surface that has a positive optical power in a central portion thereof and a negative optical power in a peripheral portion thereof, and the following condition is fulfilled: −90<Da<−20, where Da represents the distortion (%) observed at the maximum half view angle in the diagonal direction of the image sensor.

The invention provides a method and a device for controlling a television. The method includes: step 1, acquiring a video image of watching position in front of the television via a video acquisition apparatus, step 2, performing face detection on the video image and determining watching time of current viewers according to detection results, and step 3, performing time reminding operation according to watching time of the current viewers. The method and the device can determine actual watching time of viewers according to the face detection and perform accurate reminding of watching time, thereby resolving the technical problem that accurate reminding can not be achieved because actual watching time can not be determined accurately in the prior art.

A multi-image acquisition apparatus for use in a biometrics system includes a light splitting filter for reflecting or transmitting multi-image lights representing an image of a target subject provided along an identical light path into different bands; a first image sensor for imaging an iris area by capturing a fraction of the multi-image light which has been transmitted through the light splitting filter; and a second image sensor for imaging a facial area by capturing a fraction of the multi-image light which has been reflected from the light splitting filter. The apparatus further includes a control module for controlling the first image sensor and the second image sensor and providing the images obtained by the first sensor and second sensor for image recognition.

The invention relates to terminal equipment and a control system of an unmanned aerial vehicle. The terminal equipment comprises a display, a collection part, an instruction generation part and a communication part; the display displays pictures shot by image collection equipment arranged on the unmanned aerial vehicle; the collection part collects and recognizes a gesture signal of a user; the instruction generation part generates a control instruction according to the gesture signal, and the control instruction is used for controlling the flying state of the unmanned aerial vehicle and the shooting state of the image collection equipment arranged on the unmanned aerial vehicle; the communication part sends the control instruction to the unmanned aerial vehicle to control the flying state of the unmanned aerial vehicle and the shooting state of the image collection equipment arranged on the unmanned aerial vehicle, so that a shot target object is displayed on the display in a preset display state. The gesture signal of the user is recognized by the terminal equipment to control the flying state of the aerial vehicle and the shooting state, flying and shooting control taking the target object as a center is achieved through simple operation, and therefore the operation complexity is reduced.

Embodiments of the present invention provide a file display control method, apparatus and a corresponding mobile device in a terminal. The method comprises: obtaining a face image; determining whether a number of the obtained face image is single, and if so, extracting a face information sample of the face image; and matching the face information sample to a preset face information template, and determining whether to display a private file according to a matching result. According to the embodiments of the present invention, the adopted technical scheme can protect the safety of the private file of a user, and avoid the private file of the user to be seen by others and decryption of user face information, when the user and others present in front of a face acquisition apparatus at the sametime, thereby improving user experience.

The invention relates to a fish body dimension and weight rapid acquisition apparatus. The apparatus comprises a window-shaped fixing device and a dimension reference object. The upper inner wall of the window-shaped fixing device is provided with a high-angle shooting pick-up head. One side wall of the window-shaped fixing device is provided with a lateral-shooting pick-up head. One side wall opposed to the side wall where the lateral-shooting pick-up head is located is provided with an LED lateral-shooting lamp box. The lower inner wall of the window-shaped fixing device is provided with an LED high-angle shooting lamp box. The bottom of the window-shaped fixing device is further provided with an electronic balance. The acquisition method of the acquisition apparatus comprises the following steps of shooting a background image respectively in a high-angle shooting way and a lateral shooting way when no fish is present; shooting a dimension reference object image respectively in a high-angle shooting way and a lateral shooting way, and setting up a model for fish body dimension calculation and fish weight prediction. The fish body dimension and weight rapid acquisition apparatus which can rapidly acquire multi-parameter fish body dimension indexes and weights of fish bodies can further set up a fish body dimension and weight prediction model in a computer. The prediction precision can reach more than 90%. The model can be applied to research and development of fish weight sensors.

An illumination optical system of a 3-dimensional (3D) image acquisition apparatus and a 3D image acquisition apparatus including the illumination optical system. The illumination optical system of a 3D image acquisition apparatus includes a beam shaping element which outputs light having a predetermined cross-sectional shape which is proportional to a field of view of the 3D image acquisition apparatus. The beam shaping element may adjust a shape of illumination light according to its cross-sectional shape. The beam shaping element may uniformly homogenize the illumination light without causing light scattering or absorption.

A system having an acquisition device for acquiring test and measurement data and providing such data to a computer system for display of such data. For each input data signal, the acquisition device has two differential receivers of opposite polarity each having an output coupled to the input of different ones of two pairs of registers, resulting in four registers sampling the input data signal periodically at four different times in accordance with two clocking signals of different phase (phase shifted 90°) to provide a sampling rate four times the rate of the clocking signals. The resulting sample data is stored in memory of the acquisition device along with downsampled data representing a compressed, low resolution, version of the sample data which records toggling in the sample data notwithstanding such downsampling. The computer system can request readout of stored sample data and/or downsampled data during or after acquisition of sample data and downsampled data. The acquisition device preferably utilizes an FPGA to provide sampling, storage and readout of data stored in memory of the device. The FPGA may be reconfigurable in response to the computer system to provide one of different data acquiring modes selectable by a user.

The invention provides an energy Internet networking method based on resource and load matching. The energy Internet networking method based on resource and load matching is characterized in that the advanced power electronic technology, the information technology and the intelligent management technology are comprehensively utilized to interconnect a lot of novel networks formed by a distributed energy acquisition apparatus, a distributed energy storage apparatus and various types of loads, and an energy Internet interconnects a power network, a petroleum network, a natural gas network and other energy nodes so as to realize an energy peer exchange and share network which can realize bidirectional flow of the energy. The energy Internet which is set by the means of the energy Internet networking method based on resource and load matching connects billions of devices, machines and systems of an energy production end, an energy transmission end and an energy consumption end to form the basis for internet of things for the energy Internet, and is quick and optimized in response so that the energy Internet becomes a relatively more reasonable energy Internet.

The invention discloses a user status control method and system of an instant communication software. The method includes: detecting human face in the current image acquired by a video acquisition apparatus performing; if no face is detected in the current image and the current user interface of the instant communication software is at an operational state, cancelling the user interface; if face is detected in the current image and the current user interface of the instant communication software is at a cancelled state, recovering the cancelled user interface of the instant communication software corresponding the personnel, thereby the user interface is at an operational state. The technical scheme disclosed by the invention is capable of controlling the user interface of the instant communication software according to the use instance of users.

An embodiment of the present invention provides a similarity model test apparatus for simulating tunnel construction, comprising a testing stand, a hydraulic loading apparatus, a data test and acquisition apparatus, and a similarity model; wherein the hydraulic loading apparatus is arranged outside the testing stand; the similarity model is arranged inside the testing stand; one part of the data test and acquisition apparatus is arranged inside the testing stand, the other part of the data test and acquisition apparatus is arranged outside the testing stand. The similarity model test apparatus in the embodiment of the present invention not only can achieve simulation of an excavation process of the tunnel, a tunnel pre-support state and influence on the tunnel by extraneous dynamic load, but also can complete data acquisition and analysis through a built-in monitoring system, so as to evaluate and optimize deflection of tunnel excavation, control capability of support means, and influence degree on the tunnel construction by the extraneous dynamic load.

A received waveform memory 22 stores one (1) frame of received waveform data acquired by sampling a signal including a time code with a predetermined sampling period, where each sample is represented by a plurality of bits. Correlation value calculating sections 24-26 compare the received waveform data with one (1) frame of first prediction code data corresponding to a code of a position marker or a marker, where each sample is represented by a plurality of bits, one (1) frame of second prediction code data corresponding to a code “0”, and one (1) frame of third prediction code data corresponding to a code “1” respectively. Correlation value comparing section 27 compares the first, second and third correlation values with one another to specify the prediction code data whose correlation is largest to output the code data.

An imaging device including a support, a mouth retractor fastened to the support and defining a retractor opening and structure for fastening an image acquisition apparatus to the support in a position in which the acquisition apparatus is oriented so as to receive an image of the retractor opening.

The invention provides a method and system of wireless medical monitoring which can be used anytime and anywhere to carry out wireless monitoring to patients in hospital and revisiting after discharge. The method comprises: acquiring human body physiology data of patients at any place in hospital in real time through an acquisition apparatus adorned on patients and transmitting the data to a monitoring center of the hospital; associating by the hospital monitoring center the acquired human body physiology data with medical information of patients, carrying out an integrate analysis of the acquired human body physiology data by utilizing historical data of medical information; determining whether condition is abnormal in dependence on analysis results and alarming when in abnormity. The method and system raise free degree of monitoring and change the situation that in traditional monitoring mode patients are constrained in ward beds, besides, they can carry out a whole course tracking and monitoring to patients after discharge and realize integration of wireless monitoring in hospital and rehabilitation tracking after discharge, thereby easily solving the problem of revisiting hard for patients after discharge at present.