49results about How to "Adjustable resolution" patented technology

The invention relates to a four-degree-of-freedom optical measuring head based on semiconductor laser components. Including the probe mechanism and the target mirror mechanism; the probe mechanism includes semiconductor lasers, four-quadrant photodetectors, two-dimensional PSD position sensitive detectors, optical isolators and plano-convex lenses; the target mirror mechanism includes half-transparent mirrors and corner cubes; When used for measurement, the measuring head mechanism is fixed on the workbench, and the target mirror mechanism is fixed on the main shaft of the power head. The light beam emitted by the semiconductor laser is divided into two beams after passing through the polarizing beam splitter. One of the beams is incident on the half-mirror, and 50% of the light will pass through the half-mirror and enter the corner-cube prism, and then pass through the corner-cube prism. Reflected onto the four-quadrant detector, it is used as a reference beam for measuring two-dimensional linear displacement X, Y. The other half of the beam incident on the half-mirror will return along the original path and enter the beam splitter again, be reflected vertically to the plano-convex lens, and then be collimated and focused on the two-dimensional PSD by the plano-convex lens, which is used as the angle error (pitch angle , deflection angle) of the reference beam.

A liquid crystal display (LCD) device. The liquid crystal display device comprises a data driver including a first data driving unit, which is connected to first through third data lines, and a second data driving unit, which is connected to fourth through sixth data lines, a display panel including a first pixel group, which has first through third pixel units that are connected to the first data driving unit via the first through third data lines, respectively, and a second pixel group, which has fourth through sixth pixel units that are connected to the second data driving unit via the fourth through sixth data lines, respectively; and a switching circuit unit including a first transistor, a second transistor, and a third transistor, which is connected between the third and sixth data lines.

The present invention relates to electronic engineering and biomedical engineering technology. The medical radio capsule of the present invention is used for radio endoscope system, and the present invention makes the endoscope system not limited by connecting cable. Two main problems are solved, the first one is to convert wired communication into radio communication via separating the image collection and transmission part of endoscope system inside the radio capsule from its other part and transmitting collected image data to outside body for processing in the image station, and the second one is to lower the power consumption of battery powered system via adopting mini power consumption device and ASIC. In addition, the system can control remotely the operation state and parametersof image collecting unit inside body via the radio remote controller outside body.

Various components of the present invention are collectively designated as Analysis of Variables Through Analog Representation (AVATAR). It is a method, processes, and apparatus for measurement and analysis of variables of different type and origin. AVATAR offers an analog solution to those problems of the analysis of variables which are normally handled by digital means. The invention allows (a) the improved perception of the measurements through geometrical analogies, (b) effective solutions of the existing computational problems of the order statistic methods, and (c) extended applicability of these methods to analysis of variables. The invention employs transformation of discrete or continuous variables into normalized continuous scalar fields, that is, into objects with mathematical properties of density and / or cumulative distribution functions. In addition to dependence on the displacement coordinates (thresholds), these objects can also depend on other parameters, including spatial coordinates (e.g., if the incoming variables are themselves scalar or vector fields), and / or time (if the variables depend on time). Moreover, this transformation of the measured variables may be implemented with respect to any reference variable. Thus, the values of the reference variable provide a common unit, or standard, for measuring and comparison of variables of different natures, for assessment of mutual dependence of these variables, and for evaluation of changes in the variables and their dependence with time. The invention enables, on a consistent general basis, a variety of new techniques for analysis of variables, which can be implemented through various physical means in continuous action machines as well as through digital means or computer calculations. Several of the elements of these new techniques do have digital counterparts, such as some rank order techniques in digital signal and image processing. However, this invention significantly extends the scope and applicability of these techniques and enables their analog implementation. The invention also introduces a wide range of signal analysis tools which do not exist, and cannot be defined, in the digital domain. In addition, by the present invention, all existing techniques for statistical processing of data, and for studying probability fluxes, are made applicable to analysis of any variable.

The invention relates to a convex grating Offner structure double-slit multispectral system which comprises a double-slit component, a main reflector, a convex grating, an imaging objective lens and a focal plane detector, wherein light going out from a front telescope system or an optical fiber outgoing telecentric system enters from the incoming slit of the double-slit component in a certain direction; the incoming light is reflected by the main reflector and then comes into the convex grating in a form of convergence light beams, the incoming light is reflected by the convex grating to achieve spectrum light splitting, and the convergence light beams are changed into divergent light beams at the same time; imaging is performed by the imaging objective lens; the focal plane detector is located on the focal plane of the image objective lens and collects images formed on the imaging objective lens.

The invention discloses a line-field synchronizing signal generating device with adjustable resolution. Two line-field parameter registers are adopted to store line-field parameters in a default display mode and an adjustable display mode respectively, input of a port is selected according to the display mode at the top layer, and a corresponding line-field parameter is selected to be sent to a line-field synchronizing signal generating module; and a line signal counter performs counting to a clock, the field signal counter performs counting to the count cycle of the line signal counter, then according to the count values of the line signal counter and the field signal counter and the line-field parameters, high level or low level is output, and a line-field synchronizing signal and a data effective signal are obtained. According to the invention, FPGA (Field Programmable Gate Array) can be used to realize the line-field synchronizing signal generating device, Verilog language can be adopted to describe the two counters, judge modules adopt corresponding if statements to perform level judging according to count values so as to obtain the line-field synchronizing signal with adjustable resolution and the data effective signal, and the implementation logic is simpler and more intuitive.

A device for acquiring depth image, a calibrating method and a measuring method therefore are provided. The device includes at least one projecting device, at least one image sensing device, a mechanism device and a processing unit. The projecting device projects a projection pattern to a measured object. The image sensing device is controlled to adjust a focal length and focus position, and therefore sense real images. The mechanism device adjusts a location and / or a convergence angle of the image sensing device. The processing unit calibrates the at least one image sensing device and generates a three dimension (3D) measuring parameter set at a model focal length according to a plurality of image setting parameter reference sets corresponding to a model focal length and a plurality of default node distances, respectively, and then estimates a depth map or depth information of the measured object.

The disclosure relates to spectroscopic systems and spectrometers configured for hydrocarbon gas composition monitoring which provides compound speciation capability and function. In certain embodiments, the system identifies two or more bands of spectral data—e.g., including a band in each of (i) the near infrared and (ii) mid infrared wavelength regions, though bands covering subsets from about 800 nm to about 12 μm can be used—from the signal corresponding to the hydrocarbon fluid in the gas flow cell, where the two or more bands are not contiguous (e.g., there is at least a 50 nm separation between the nearest ends of two bands). A combined spectrum is then formed from the two or more non-contiguous bands of spectral data and processed to identify and / or quantify the constituents of the hydrocarbon fluid.

The invention discloses a flexible array reference electrode, and a method for in situ researches of the corrosion of a metal weld by using the electrode. The flexible array electrode is composed of a flexible substrate, an array electrode arranged on the surface of the flexible substrate, and a leading wire packaged in the flexible substrate and connected with the array electrode, the array electrode is formed by arranging Ag / AgCl micro-electrodes in an array manner, surface potentials of different micro-areas of the metal surface can be simultaneously obtained, and the flexible substrate with small modulus and flexible deformation is adopted to realize in situ and real time monitoring of the corrosion potential of abnormal complex surface of a metal weldment. The measurement method adopting the flexible array electrode as a reference electrode realizes in situ, lossless, convenient and sensitive detection of the corrosion potentials of the surface weld area, the thermal influence area and the base material area of the metal welding sample in order to observe the generation, development and extinction process of corrosion of different positions of the surface of the metal weldment, and the corrosion resistances of different welding modes in different environments are compared to realize onsite real time monitoring of the corrosion state of the metal weld in the service, so the method is especially suitable for long-term tracking monitoring of the service safety of metal weldments of automobiles, ships, engineering machines and aerospace.

The invention relates to a detector device assisted by majority current, comprising a semiconductor layer of a first conductivity type, a plurality of control regions of the first conductivity type, at least one detection region of a second conductivity type opposite to the first conductivity type and a first source for generating a majority carrier current associated with an electrical field, characterized in that it further comprises control circuitry arranged for controlling the first source and controlling individually at least one of said first majority carrier currents.

The invention discloses a scanning device and a scanning method thereof and a laser radar. The scanning device comprises a galvanometer and a spatial light modulator, wherein the galvanometer is provided with a motion part, the motion part is provided with a reflecting surface suitable for reflecting an incident light beam to form an emergent light beam, the galvanometer changes the propagation direction of the emergent light beam through swinging of the motion part, and at least one selected from the vibration frequency and the amplitude of the motion part of the galvanometer is changeable; and the spatial light modulator is located in the optical path of at least one selected from the incident light beam and the emergent light beam and is suitable for adjusting the phase of light waves to change the propagation direction of the light beam. In the technical scheme disclosed in the invention, on the premise of ensuring the scanning frequency of the scanning device and realizing high frame rate acquisition, the direction of the scanning field of view, the size of the field of view and the resolution of the field of view angle are adjustable, and thus, the field of view can be adjusted according to detection requirements, and more accurate target information can be provided for unmanned driving or other fields.

The invention discloses a video monitoring system adopting wind / solar complementary power supply under a wireless Mesh network. The system has the functions of monitoring a large target area under the Mesh network and giving a fire alarm and an antitheft alarm, adopts the wind / solar complementary power supply, and is quick in deployment and convenient to mount and upgrade. Image quality and bandwidth occupation can be regulated. The system adopts software coding and decoding, and can regulate a frame number, resolution, the image quality and the like according to the needs of a user and realize the function of storing and replaying received video monitoring images by a computer or special equipment. The system supports a browser-technology-based network browsing function, and is convenient to use. A plurality of hops of routers are adopted for transmission, so normal data transmission can be ensured not to be influenced under the condition that an individual router is damaged or fails. The system and equipment have lightning protection capability, high voltage interference resistance and powerful data and alarm acquisition control and processing functions, can be normally run under the environments of high temperature, low temperature, strong wind, dust flying, torrential rain and the like, are widely applied in the fields of ports, wireless campuses and the like, and are seamlessly combined with a data monitoring system to realize the linkage of light and an alarm whistle and video recording in alarming.

A scintillation device with high resolution includes a detection unit (3) to convert into light radiation an ionising radiation originating from a source under examination and a collimator (2) made of a material with high atomic number 3nd including a plurality of grids (4), the grids (4) co-operating with each other in mutually sliding fashion in a transverse direction to the direction of detection (R) to provide a partial coverage of the detection unit (3) in such a way as to expand and reduce in an adjustable manner a surface area of the detection unit (3) offered to the radiation.

Disclosed are a CMOS (Complementary Metal Oxide Semiconductor) image sensor as well as a camera and a digital camera using the same. The sensor comprises a pixel signal generating module for generating pixel signals of different modes based on a time series control signal, a pixel signal acquisition module for acquiring and storing the pixel signals of different modes in an assembly line manner and performing correlated double sampling on the pixel signals of different modes, and a pixel signal processing module for performing multi-column sharing on the pixel signals of the correlated double sampling to obtain digital codes. The pixel signal generating module can obtain pixel signals of different modes by adjusting the time series control signal of a pixel signal controller, so the resolution and frame rate of the CMOS sensor are adjustable. The pixel signal sampling module and the pixel signal processing module can process the pixel signals in a multi-column sharing manner, so the circuit structure can process multiple columns of pixel signals compactly at a high speed, reduce the chip area, effectively reduce the area of an analog readout circuit and realize the layout more easily.

This invention discloses an optics non-contact small angle measurement device, which belongs to small angle measurement technique. The device comprises optics probe, photo electricity test device and computer communication and control device, wherein; the optics probe comprises calibration semi-conductor laser, deflecting spectroscope, a quarter wave sheet, object surface or reflection mirror, spectroscope, inner reflection prism and photoelectricity diode. The optics and photoelectricity parts are fixed on the base plate. The photoelectricity test device comprises signal process unit and the computer communication and control device comprises single machine, digit filter, switch output end, upper machine communication port and display device.

The invention relates to a large-view-field super-resolution imaging system adjustable in resolution, and belongs to the technical field of optical imaging. The large-view-field super-resolution imaging system is characterized in that scanning and light deflection are firstly carried out on a target at an infinite point by rotating optical wedges to enable a target light beam to enter a follow super-resolution imaging system body at a small angle, super-resolution focusing is achieved, image fusing and image rebuilding are finally carried out on all super-resolution focal spots according to the scanning mode of a rotating optical wedge pair, and a super-resolution image of the target is obtained. In the large-view-field super-resolution imaging system, the super-resolution system body is formed by a substrate optical system and a super-resolution pupil filter, a LC SLM is used as the super-resolution pupil filter, the phase distribution of the light beam can be dynamically modulated in real time, and then the imaging resolution of a local area of the target can be changed according to requirements. The large-view-field super-resolution imaging system is simple in structure, and resolution-adjustable large-view-field super-resolution imaging of the target at the far point can be achieved.

The invention provides a dual-wavelength LD self-mixing vibration measuring instrument with adjustable resolution, and the measuring instrument comprises a dual-wavelength LD for emitting laser, an optical path adjustment device, a light density filter, a to-be-detected target, a drive power supply in electrical connection with the dual-wavelength LD, a signal processing device and a data collection and analysis device, wherein the optical path adjustment device, the light density filter and the to-be-detected target are sequentially set along a transmitting optical path, and the signal processing device and the data collection and analysis device are sequentially in communication connection with the dual-wavelength LD. The invention also provides a measurement method of the measuring instrument, and the laser with the dual wavelengths outputted by the dual-wavelength LD passes through the optical path adjustment device and the light density filter to reach the to-be-detected target. The laser is reflected by the to-be-detected target and then returns to the respective resonant tube cavities to perform the self-mixing interference with the light in the resonant tube cavities. A computer carries out the analysis processing of the self-mixing signal transmitted through communication via an even equivalent wavelength Fourier transform algorithm, thereby achieving the adjustable-resolution target vibration measurement.

A method for determining the authorship of a picture, wherein the method comprises at least the following steps: —transferring the picture to be examined or parts of the picture to be examined with the aid of a digitizing means, in particular a scanner, into at least one data set, —analyzing the data set(s) and determining characteristic features or parts of characteristic features, in particular dots or lines or dot or line groups or patterns, contained in the data set in digitized form, wherein the characteristic features to be determined are stored in a database, —and wherein the database includes an additional associated data set for each of the stored characteristic features.

The invention relates to a frequency configuration method for photoelectric detector frequency response measurement. According to the method, an optical frequency comb generating module, a double-drive intensity modulation module, a photoelectric detector to be tested, a spectrum analysis and data processing module, a signal source A and a signal source B are adopted, wherein the optical frequencycomb generating module, the double-drive intensity modulation module, the photoelectric detector to be tested and the spectrum analysis and data processing module are connected with one another sequentially, and the signal source A and the signal source B are connected with the driving electrode of the double-drive intensity modulation module; and optical frequency comb signals generated by the optical frequency comb generating module are simultaneously modulated by the signal source A and the signal source B in the double-drive intensity modulation module. According to the frequency configuration method for photoelectric detector frequency response measurement of the invention, the repetitive frequency of the optical comb generating module and the frequencies of the two signal sources are configured, so that the segmental measurement and inter-segment splicing of the frequency response of the photoelectric detector are realized, and ultra-wide-frequency-range photoelectric detector frequency response measurement can be realized by means of low-frequency microwave driving.

The invention discloses a video frequency multiplication method. The video input interface chip receives an output by the computer host; the HDMI video signal is converted into a standard VESA time sequence signal; FPGA receives video pixel signal through a video acquisition module, the video pixel signal is cached by an FIFO and then is sent to a video frequency multiplication module. The video frequency multiplication module receives a video signal with any frame rate and then fixedly outputs a video frame signal at the frequency of 60HZ, and the video output module receives the video signaloutput by the video frequency multiplication module, converts the video signal into a standard VESA time sequence signal and outputs the standard VESA time sequence signal to the video output interface chip for output and display. The video frequency multiplication module is simple to use and can be used for a video processing system based on an FPGA.

The invention relates to a microchip spectrometer with large bandwidth and adjustable resolution. The microchip spectrometer comprises a spectrum coarse segmentation unit A, a tunable ring filter B, asampling spectrum recording and restoring unit C and a reference unit D. The upper output end of the coarse segmentation unit A is connected with the input end of the tunable ring filter B, the loweroutput end of the coarse segmentation unit A is connected with the reference unit D, and the output end of the tunable ring filter B is connected with the sampling spectrum recording and restoring unit C through a 1 * 2 beam splitter. The microchip spectrometer has the advantages of large bandwidth, adjustable resolution and low power consumption, and is suitable for various material platforms.

The invention provides an image stabilizer, which is connected with image acquisition equipment. The image stabilizer comprises a signal interface unit, a dynamic control unit and a resolution conversion unit, wherein the signal interface unit extracts YUV data on the basis of the image data of the camera and generates the number of line points, the number of total lines, line synchronization, field synchronization, effective area data and camera input clock; according to the number of line points, the number of total lines and the camera input clock, which are generated by the signal interface unit, and the working clock of the dynamic control unit, the dynamic control unit generates the number of line points and the number of total lines, which adapt to the resolution of the outputted image; and according to the number of line points, the number of total lines and the effective area data, which are transmitted based on the dynamic control unit, and the YUV data transmitted by the signal interface unit, the resolution conversion unit generates the outputted image with a new image resolution. The image stabilizer can regulate the image acquired by the image acquisition equipment to provide the image of which the resolution is stable and can be regulated.

A portable display apparatus of a video signal including a video signal source, a signal masking module, and a display panel is provided. The video signal source generates a data enable signal and a clock signal. The signal masking module is electrically connected to the video signal source, receives the data enable signal and the clock signal, and masks a part of the clock signal according to the data enable signal and a masking signal to provide a processing signal. The display panel is electrically connected to the signal masking module, receives the processing signal, and displays a part of the video signal to be an image according to the processing signal.

An object navigating apparatus, which comprises: a sensing apparatus, for sensing an object; and a control unit, for computing at least one displacement that the object is relative to the sensing apparatus. The control unit increases the sensing resolution if the control unit detects the displacement is larger than a first predetermined value for continuous N times, or if the control unit detects the displacement is larger than the first predetermined time for at least N times in a first sensing time interval. The N is a positive integer larger or equals to 2.

The invention discloses a cotton seed detection system based on machine vision and a detection method thereof. The system comprises an image acquisition module and an upper computer module. The imageacquisition module is connected with the upper computer module; the upper computer module comprises an image preprocessing module, an image segmentation module and a PC, the image acquisition module acquires the cotton seed images and then preprocesses the acquired images through the image preprocessing module, the image preprocessing module is connected with the image segmentation module, and thePC is used for receiving data processed by the preprocessing module and the image segmentation module. According to the invention, the detection accuracy can be improved by detecting the quality of the cotton seeds based on machine vision; meanwhile, the detection efficiency is high, the detection period can be effectively shortened, the definition of the collected image can be improved by adopting the plane scanner to collect cotton seed images for the image collection module, the adjustable resolution ratio is achieved, the image color is brighter, the edge is not distorted, and a stable image foundation can be provided for detection.