43results about How to "Change resolution" patented technology

The invention provides a network video transmission method and system and a sending / receiving end processing method and device. The network video transmission method comprises the steps that a receiving end reports a playing window of each network video; a sending end sets the resolution ratio of output video data according to the resolution ratio of the playing windows of the receiving end, the video data are transmitted to the corresponding receiving end; after the receiving end receives the video data, the video data are played in the corresponding play windows. The size of playing windows can be defined by the receiving end of network video communication, and video quality cannot be affected.

A digital circuit, system, and method for keystone correction of a projected image utilize a digital compensation engine to resize a digital image prior to projection. Preferred embodiments of the present invention utilize a compensation engine with a separable architecture in which the two-dimensional image-resizing task is partitioned to use two engines. Horizontal image resizing is performed first, followed by vertical image resizing. Two large polyphase, anti-aliasing, finite impulse response (“FIR”) filters are used to resize the data. A 639-tap filter is used for horizontal resizing, and a 383-tap filter for vertical resizing. Pixels in the corrected image can be positioned with arbitrary accuracy to avoid forming stair-stepped lines in the corrected image. The coefficients for the FIR filters can be stored with 10-bit precision to provide a resized image without loss of visible quality. The compensation engine can be readily configured with an ASIC device or in software.

The invention provides a binocular photogrammetry method of large flexible structure vibration displacement, and belongs to the technical field of flexible structure dynamic analysis and measurement. The binocular photogrammetry method of large flexible structure vibration displacement aims to solve the problem that the existing contact measurement impacts performance of a flexible structure. Firstly, industrial cameras are demarcated; then, shock excitation is conducted on the flexible structure to be tested, all the industrial cameras are controlled to be triggered synchronously through a single-chip microcomputer, and shooting of vibration displacement is conducted on the point to be tested of the flexible structure to be tested; next, images obtained by shooting of all the industrial cameras are dealt with, pixel coordinates of the point to be tested are obtained through an angular point detection algorithm, object space coordinates of the point to be tested at each point of time are obtained through a binocular three-dimensional reconstruction technology, and thus the vibration displacement curve of the flexible structure to be tested is obtained. The binocular photogrammetry method of large flexible structure vibration displacement is applied to measuring vibration displacement of the flexible structure.

To provide a technique for converting vertical resolution with a simple constitution. The electro-optical device is provided with a Y driver 13 which selects scanning lines 112 of odd numbered lines in the specified order and a Y driver 14 which selects scanning lines 112 of even numbered lines in the specified order. Therein, the Y driver 13 comprises a shift register 131 which shifts a transfer starting signal SPL according to a clock signal [Phi]L and, thereby, generates a logic signal for selecting scanning lines in the specified order, and an output control circuit 133 which narrows the logic signal into the L-level pulse width of an enable signal EnL and outputs the logic signal as a scanning signal for selecting the scanning lines. The Y driver 14 is also constituted in the similar manner. In such a constitution, in the case of the normal resolution mode, enable signals of which the phases are different from each other are supplied to the Y drivers 13, 14 and the scanning lines of the odd numbered lines and the even numbered lines are alternately selected. On the other hand, in the case of the low resolution mode, enable signals of approximately the same phase are supplied to the Y drivers 13, 14 and the two scanning lines of the adjacent odd numbered line and even numbered line are selected simultaneously.

The invention discloses a method to control and compensate error of programmable standard resistance generator. It comprises 16 exactitude resistances at most and connected with each other to form resistance network in series according to binary principle; eliminating the error brought from the winding process of the exactitude resistances; and deciding the resistance value. And the contacting resistance error of programmable standard resistance generator relay contacts must make hardware to compensate. The invention would make the standard resistance output the absolute error less than 0.2ohm in the range between 0 and 6553.6ohm.

A display apparatus includes: a light emitting unit which emits light; a light scanning unit which includes a light reflector and scans the light in first and second directions; an amplitude changing unit which changes an amplitude of the swing of the light reflector; and a light emitting control unit which adjusts an amount of light of the light emitting unit, wherein the amplitude changing unit allows a first state where the light is scanned in a first region of the display surface and a second state where the light is scanned on the first region and a second region of the display surface is switched, and wherein the light emitting control unit allows an amount of light per unit area of the first region in the first state and an amount of light per unit area of the first region in the second state to be equalized.

The invention relates to an optical sensing based impulse testing method and a device. The optical sensing based impulse testing method is characterized by comprising the following steps that: a guide rail is arranged along the tested impulse direction, a mass block capable of moving along the impulse direction is arranged on the guide rail, a linear raster is fixed at the side of the mass block,and a measurement device is arranged on the guide rail to measure a reflection light intensity-time curve of the linear raster, thereby impulse parameters are calculated. In the device, the pulse impulse parameters are measured by optical sensing, so that the anti-electromagnetic interference capability of a testing system is improved; the low-loss characteristics of optical fiber are utilized torealize the long-distance transmission of measurement signals so as to ensure the safety of a light source, an optoelectronic converter and other devices; the device can be applied to explosion and radiation field, and other special occasions, the testing range, resolution and the like can be changed by adjusting the weight of the mass block, the length of the linear raster, a line space and other parameters according to the tested object, and the method is adapted to the measurement requirements of different occasions and different parameters; and a testing probe has a small volume and a compact structure, and is convenient to install and disassemble.

The invention discloses an offset correction method of a cursor position, comprising the following steps of: deciding whether to transmit the displacement for controlling a cursor to move or not according to the position of the cursor on the screen of a host and the displacement of an inertial sensing signal; if the cursor exceeds the boundary of the screen, recording the boundary deviation quantity; and carrying out the relative position error compensation when the cursor rotates reversely, and moving the cursor or providing the change on the resolution of the screen after the cursor position enters into a coordinate system of the screen.

The invention is applicable to the technical field of picture processing and discloses a picture superposition method and a system. The method includes that by means of a map based application program interface, a first picture is loaded to be used as a base picture, each point on the base picture corresponds to a geographical coordinate, and a second picture is added to the position of a geographical coordinate corresponding to a base picture required to be placed in a labeling form; the picture superposition system comprises a first picture loading module and a second picture adding module, the first picture loading module is used for loading the first picture to be used as the base picture through the map based application program interface, and each point on the base picture corresponds to a geographical coordinate; and the second picture adding module is used for adding the second picture to the position of the geographical coordinate corresponding to the base picture required to be placed in a labeling form. By means of the picture superposition method and the system, the geographical coordinate is bound during picture superposition so that original positions can not be deviated under the condition that monitor resolution is changed.

The invention provides a bacillus amyloliquefaciens strain and its application in waste deodorization. The stratin is bacillus amyloliquefaciens YZ-0001, and collected at the China General Microbiological Culture Collection Center; the collection number is CGCC 12052 and the collection date is January 14, 2016. The bacillus amyloliquefaciens strain is isolated from soil; the colony characteristics shown on a screening flat panel (LB flat panel) is: the form is round, the surface is smooth and dirty white, and the gram stain is positive. Through the 16Sr DNA microorganism classification and identification, it is determined as bacillus amyloliquefaciens. The bacillus amyloliquefaciens strain has strong and complex organic matter degradation ability; therefore, it can be applied to the waste deodorization, and the deodorization effect is good.

The invention relates to a measurement device of stimulated Brillouin frequency shift during the amplification of a single single-frequency pulse, comprising a single-frequency pulse signal source with the repetition frequency of 1 Hz, two 2*1 wavelength division multiplexers WDM, an F-P interferometer and a CCD display, wherein the single-frequency pulse signal source is connected with one end of one 2*1 wavelength division multiplexer WDM, and the output end of the 2*1 wavelength division multiplexer WDM 1 is connected with an optical fiber signal amplifier; the optical fiber signal amplifier is connected with one end of the other 2*1 wavelength division multiplexer WDM; the other end of one 2*1 wavelength division multiplexer WDM is welded with the other end of the other 2*1 wavelength division multiplexer WDM, and the output end of the other 2*1 wavelength division multiplexer WDM is connected with the F-P interferometer; and the output end of the F-P interferometer is connected with the CCD display. The invention can flexibly change the free spectral range and achieve high measurement precision, simple experimental equipment and low price.

The invention relates to a video fiber optic transceiver. The video fiber optic transceiver comprises a camera-end interface module composed of a camera adaptive module, a buffer module and an external interface module, an acquisition card interface module composed of a reset module, an external interface module and a clock module, and two high-speed serial transceivers. One high-speed serial transceiver is connected with the camera-end interface module. The other high-speed serial transceiver is connected with the acquisition card interface module. The other ends of the two high-speed serial transceivers are connected with a fiber optic module. The high-speed serial transceivers can convert parallel data into serial data and then transmit the serial data to a high-speed serial receiving terminal. In this way, the serial data are reset to be the original parallel data and then are sent out. The video fiber optic transceiver can be used as either a receiving terminal or a transmitting terminal. Therefore, during the practical application process, whether the video fiber optic transceiver must be connected with a camera or an image acquisition card is not a problem any more.

An A / D converter device is provided, which has a D / A conversion function and changes a resolution of A / D conversion and D / A conversion. The A / D converter device is configured to selectively execute an A / D conversion operation and a D / A conversion operation, by the operation of a control circuit controlling switching of switches according to an ADC / DAC function switching signal supplied from an external side. The A / D conversion operation performs A / D conversion of an input signal voltage inputted via a signal input terminal from an external side and outputs an A / D conversion value of 12 bits. The D / A conversion operation outputs, via a signal output terminal, an analog voltage produced by performing D / A conversion of a digital value supplied from the external side.

The invention discloses a three-dimensional reconstruction method for the damaged corrosive pitting morphology of a metal panel. The three-dimensional reconstruction method comprises the following steps: scanning the corrosion pit surface topography of the metal panel so as to be used as a reference picture; aligning laser emitted by a laser displacement sensor to the top of a corrosion pit, setting the indication of the laser displacement sensor as zero, translating the laser displacement sensor so as to enable the laser to be aligned to the bottom of the corrosion pit, wherein the indication of the sensor is the height difference from the top to bottom of the corrosion pit, and the height difference is the depth of the corrosion pit; and establishing an NURBS (Non-Uniform Rational B-Spline) surface by utilizing the gray scale value of the reference picture, and stretching the NURBS surface into a body, thus completing the reconstruction of the pitting corrosion area topography of a test piece. The three-dimensional reconstruction method is simple and accurate to scan and input; the measurement precision of the laser displacement sensor can achieve 10-3mm which can meet the requirement of the corrosion pit on depth less than 1mm; and the existing commodity software can be adopted for replacing the manual programming, so that the working efficiency is improved.

The invention relates to the technical field of gas flow measuring and particularly discloses a trace gas flow meter with an adjustable resolution ratio. The trace gas flow meter comprises a closed container, a gas inlet pipe, a gas outlet pipe, a liquid medium, a center pivot, a balance tank, a gravity regulator, a first cavity gas collection unit, a second cavity gas collection unit and a counter. The balance tank is arranged in the liquid medium in the closed container through the center pivot, the gravity regulator is arranged in the balance tank and can freely slide along the balance tank, the first cavity gas collection unit and the second cavity gas collection unit are connected to be inverted on the lower side of the balance tank and located on the two sides of the center pivot respectively, a gas inlet of the gas inlet pipe is located below the joint of the first cavity gas collection unit and the second cavity gas collection unit, and the counter is connected with the center pivot. Lifting force can be adjusted so as to change the resolution ratio of a measuring unit to adapt to measurement in different gas flow ranges. Meanwhile, gas leakage in the measuring process can be avoided to guarantee measurement accuracy.

Provided is an image processing device for changing resolution of image data in accordance with a distance from a reference point arbitrarily set in a screen of the image data. The image processing device includes: selection means for selecting from the image data, operation object pixels arranged in such a manner that the pixel interval is increased as the distance from the reference point is increased; smoothing process means for smoothing the operation object pixels selected by the selection means, by using the pixel values of the operation object pixels and the pixel values of the pixels positioned around the operation object pixels; and interpolation process means for interpolating the pixel values of the pixels not selected as the operation object pixels by the selection means from the pixel values of the operation object pixels positioned around them and smoothed by the smoothing process means.

The invention relates to a graphene-based formation pressure sensor. The sensor comprises a shell, and two force measuring structures are symmetrically arranged in the shell, wherein one is arranged on the inner top surface of the shell, and the other one is arranged on the inner bottom surface of the shell. Each force measuring structure comprises a deformation transmission rod connected to the inner top surface or the inner bottom surface of the shell and an elastic film horizontally arranged between the inner walls of the shell, the elastic film is in contact with the end part of the deformation transmission rod, a graphene film is arranged on the surface, deviating from the end part of the deformation transmission rod, of the elastic film, and an electrode is arranged on the surface, deviating from the elastic film, of the graphene film. Electric signal transmission structures are arranged at the two ends of the elastic films and connected with the electrodes through wires. The sensor further comprises a groove formed in the bottom of the shell, and a soil-retaining and water-permeable structure arranged in the groove and used for preventing stratum soil body fine particles from entering the groove to extrude the bottom of the shell. The device can adjust the measurement range and resolution of the sensor, can detect the total water and soil pressure and the pore water pressure at the same time, and is worth popularizing.

The invention provides a detection method of a laser radar. The laser radar comprises a scanning device. The detection method comprises the following steps: S101, emitting a first group of detection light beams; S102, reflecting the first group of detection light beams to the outside of the laser radar through the scanning device, and receiving a first group of echoes of the first group of detection light beams on an obstacle to obtain a first point cloud; S103, emitting a second group of detection light beams; and S104, reflecting the second group of detection light beams to the outside of the laser radar through the scanning device, and receiving a second group of echoes of the second group of detection light beams on the obstacle to obtain a second point cloud, wherein the first point cloud and the second point cloud correspond to different detection ranges respectively. According to the invention, through time-sharing detection, control of the light intensity of the laser, the bias voltage of the detector and point cloud fusion, the problem that a distance measurement blind area exists in the laser radar of the coaxial transceiver system is effectively solved, and the resolutions of different detection ranges can be freely adjusted.

A color image sensor includes a plurality of image elements, a plurality of read gate sections, a plurality of vertical scanning charge transfer sections, and a plurality of transfer switch sections. The plurality of image elements are arranged in a matrix of rows and columns and each of the plurality of image elements generates an electric charge in response to incidence of light. The plurality of read gate sections are provided for the plurality of image elements, and each of the plurality of image elements controls transfer of the electric charge generated in a corresponding one of the plurality of image elements. Each of the plurality of vertical scanning charge transfer sections is provided for every column of the matrix to hold and transfer the electric charges transferred from a corresponding column of the plurality of read gate sections. Each of the plurality of transfer switch sections is provided for a termination section of a corresponding one of the plurality of vertical scanning charge transfer sections to control transfer of the electric charges from the corresponding vertical scanning charge transfer section. The horizontal scanning charge transfer section is provided for the plurality of transfer switch sections to hold and transfer the electric charges transferred from the plurality of vertical scanning charge transfer sections via the plurality of transfer switch sections.

A color image sensor includes a plurality of image elements, a plurality of read gate sections, a plurality of vertical scanning charge transfer sections, and a plurality of transfer switch sections. The plurality of image elements are arranged in a matrix of rows and columns and each of the plurality of image elements generates an electric charge in response to incidence of light. The plurality of read gate sections are provided for the plurality of image elements, and each of the plurality of image elements controls transfer of the electric charge generated in a corresponding one of the plurality of image elements. Each of the plurality of vertical scanning charge transfer sections is provided for every column of the matrix to hold and transfer the electric charges transferred from a corresponding column of the plurality of read gate sections. Each of the plurality of transfer switch sections is provided for a termination section of a corresponding one of the plurality of vertical scanning charge transfer sections to control transfer of the electric charges from the corresponding vertical scanning charge transfer section. The horizontal scanning charge transfer section is provided for the plurality of transfer switch sections to hold and transfer the electric charges transferred from the plurality of vertical scanning charge transfer sections via the plurality of transfer switch sections.

The invention discloses a control framework based on unidirectional and bidirectional LED arrangement display. The control framework includes a computer, an HDMI / DP / USB module, an LED display controller, a signal distributor and a display unit. The output end of the LED display screen controller is connected to the input end of the signal distributor, and the LED display screen controller receives video image-text information, control information programs and overhaul information transmitted from the HDMI / DP / USB module, and processes the information. The output end of the signal distributor is connected to the display unit, and the signal distributor is used for distributing the video image-text information, the control information programs and overhaul information processed by the LED display screen controller to the display unit according to the need. The control framework based on the unidirectional and bidirectional LED arrangement display changes a display of a computer into an LED display screen for display, outputs a video to the LED display screen after scaling processing, and no change of the resolution ratio of the LED display screen is needed.

The invention discloses a ferromagnetic pipeline tiny defect magnetic detection sensor. The detection sensor is integrally cuboid, and the lower surface of the detection sensor is in an arc shape consistent with the radian of the wall of a pipeline. The magnetic detection sensor comprises an arched excitation part, a circuit part and a detection part, the circuit part and the detection part are arranged in the arched cavity of the arched excitation part, and the circuit part is arranged between the arched excitation part and the detection part. According to the invention, an excitation devicewith a large volume in a traditional magnetic flux leakage detection device is simplified into the excitation part of the sensor, the integration of the excitation part and the detection part is achieved, and the implementation mode of the detection part is designed, so that the acquired magnetic field signal information amount is larger and more accurate.

The invention relates to a method for detecting foreign matters, namely a waste material especially a cutting or stamping waste material, between a bending tool and a board piece to be molded. The method comprises the following steps that the bending unit which comprises an upper tool, a lower tool, an equipment controller, at least one light source and at least one light sensor for detecting theforeign matters is provided; in an opening position of the bending unit, at least one board piece is provided in a pre-prescribed position between the upper and lower tools; and the foreign matters between the bending tool and the board piece are detected by using the light source and light sensor to measure the contour of the lower tool between the light source and the light sensor, comparing thecontour of the lower tool with a pre-prescribed reference contour and / or a theoretical contour in the equipment controller, start molding of the board piece when the contours are consistent, or interrupting or ending the method when there is a deviation therebetween.

The invention discloses a method to control and compensate error of programmable standard resistance generator. It comprises 16 exactitude resistances at most and connected with each other to form resistance network in series according to binary principle; eliminating the error brought from the winding process of the exactitude resistances; and deciding the resistance value. And the contacting resistance error of programmable standard resistance generator relay contacts must make hardware to compensate. The invention would make the standard resistance output the absolute error less than 0.2ohm in the range between 0 and 6553.6ohm.

The invention relates to the technical field of fiber sensing distance measurement and particularly relates to a fiber distance measurement device with high sensitivity. The device is composed of a first laser device, a second laser device, a first condensing collimating lens, an imaging lens, a second condensing collimating lens, a first sending fiber, a second sending fiber, a first receiving fiber, a second receiving fiber, a filtering spectroscope, a second photoelectric receiver and a first photoelectric receiver. The first laser device and the second laser device subjected to frequency modulation emit lasers with similar wavelengths respectively, the lasers enter the first sending fiber and the second sending fiber through the first collimating focusing lens and the second collimating focusing lens respectively, the light emitted by the first sending fiber is totally transmitted through the filtering spectroscope, the light emitted by the second sending fiber is totally reflectedby the filtering spectroscope, the transmission light and the reflection light are emitted to a measured object through the imaging lens, are reflected by the measured object, return along the same path and are respectively received by the first photoelectric receiver and the second photoelectric receiver, and end faces of the first transmitting fiber and the second transmitting fiber are imagedby the imaging lens in front of the measured object.