1149results about How to "No distortion" patented technology

A wide-angle projection lens module is provided, including a reflective convex aspheric mirror and a refractive lens group of positive refractive power. The following Conditions (1) to (2) are satisfied:

15<|F_reflective/F|<25  Condition (1); and

1.5<|F_refractive/F|<2.0  Condition (2),

• • wherein, F is a focal length of the wide-angle projection lens module, F_reflective is a focal length of the reflective convex mirror, and F_refractive is a focal length of the refractive lens group.

The invention provides a photosensitive resin pool. The photosensitive resin pool comprises a pool body, an oxygen molecule semipermeable membrane located above a bottom wall in the pool body as well as an air inlet and an air outlet, wherein the area of the oxygen molecule semipermeable membrane accords with that of the bottom wall of the pool body, and a cavity is formed between the oxygen molecule semipermeable membrane and the bottom wall of the pool body; the air inlet and the air outlet are formed in the side wall or the bottom wall of the pool body and communicated with the cavity. Besides, the invention further provides a 3D (three-dimensional) printer adopting the photosensitive resin pool and a printing method. The structures of the photosensitive resin pool and the 3D printer are simple, the printing quality is reliable, and the service life is longer. By means of the method, the starting time, the inflating volume and the air extracting volume of an inflation unit and an air extraction unit are correspondingly adjusted, the semipermeable membrane cannot swell while an oxygen molecule layer is formed on the upper surface of the semipermeable membrane, a print object cannot be easily bonded to the semipermeable membrane and is easy to separate, and the contact surface of the print object and the semipermeable membrane cannot be twisted or deformed.

The invention relates to a rapid defogging method, comprising the following steps of: solving for the RGB (Red Green Blue) minimum of each pixel point to obtain a grayscale image, carrying out minimum filtering on the grayscale image to obtain a dark primary-color image, estimating atmospheric parameters by using the dark primary-color image, uniformly selecting some points in the image to solve for transmissivity, carrying out binary bilinear regression analysis to obtain the transmissivity of all points of the image, and recovering a fog-free image according to the transmissivity and the atmospheric parameters. The algorithm provided by the invention has the characteristics of good processing effect and high speed, and can be easily applied to systems with higher requirements on real-time property.

The invention discloses a line segment vacuating device for an electronic map and a method thereof. The device comprises a map lead-in module, a threshold value setting module, a vertical distance calculating module, an included angle calculating module and a line segment vacuating module. A straight line enabling a head point PS of a curve to be connected with a tail point PE of the curve serves as a datum line, the maximum vertical distance dm from other end points on the curve to the straight line PS-PE is calculated, the point with the maximum vertical distance is recorded as Pm, an included angle alpha formed by the vector PS-Pm and the vector Pm-PE is calculated out, compared the dm with the D, the a and the A, if dm<=D and a <=A, then only the head point PS and the tail point PE of the curve are retained, all other points are removed; if dm> D and a>A, then the Pm point separates the curve into two portions, vertical distance calculating, included angle calculating and line segment vacuating are repeatedly carried out on the two portions, until the dm>=D and a>=A. The line segment vacuating device can not only guarantee vacuating vigor and certain compression ratio, but also give consideration to vacuating deformation and guarantee smoothness of line segment after vacuating, and cannot enable original line forms to be excessively distorted.

The invention provides a method for generating an electronic map. The method includes a data collecting procedure, a data storage procedure and an electronic map displaying procedure, wherein the data collecting procedure includes a step of collecting vector data and additional data corresponding to the vector data; the data storage procedure includes the steps of storing the collected vector data and the collected additional data in a server database, enabling the vector data corresponding to different types of main body elements to be stored in a plurality of layers, and enabling the vector data of each type of main body elements to be stored in one layer; the electronic map displaying procedure includes the steps that an electronic map displaying end obtains the vector data and the additional data from a server, draws vector diagrams corresponding to each layer of vector data layer by layer according to the vector data in each layer, and adds the additional data related to main body element identification data (ID) in the layer of vector data, and consequently the electronic map is generated in a displaying device.

A cut deal laser inherent stress composite peen forming features in the clipper using robot, using carbon dioxide to realize the basic formation, profile measuring feedback system controlling the deformation quantity, left stress meter measuring the surface stress of the board, optical scanning the pre formation, realizing board through model analog software, getting optimized process parameter instructing laser consecutive peen formation, using neodymium glass laser providing short pulse strong laser light, laser impact wave as the force source of precise forming, using the profile feedback device and on line measuring board surface stress left stress to control the deformation quantity to realize precision forming with complex shapes.

The invention discloses a single-photon detector circuit and a detection method thereof. The detection method comprises the following steps of: separating an electric peak and an avalanche signal which are generated by a gate control pulse on time domain by using a high-speed amplifier of which the speed is higher than that of the conventional gate control single-photon detector in the single-photon detector circuit; responding the electric peak and the avalanche signal respectively within a time interval of subnanosecond by a high-speed comparator to generate pulse output; and judging whether the avalanche signal is generated or not by a high-speed counter according to the number of pulses so as to screen a single-photon signal. The single-photon detector circuit and the detection method have the advantages that a structure is simple, the original avalanche signal can be separated out, the avalanche signal is utilized fully, and the single-photon detection efficiency is high.

The invention discloses a LCD and its driving method, able to make the LCD output an image, where the image is composed of a pixel array and the time for enabling these pixels includes an actual scanning time and a blanking scanning time. And the driving method comprises: firstly, enabling each scan signal to enable the respective row of pixels; successively, generating a data signal to drive each enabled pixel separately, and according to the positions of the enabled pixels, regulating the time lengths of the scan and data signals.

The invention discloses an IPTV printscreen realization method and a device based on a set-top box, which can intercept screen IPTV based on a set-top box, and the image can not distort. The device comprises a zone partition module, a printscreen zone selection module, an image intercepting module and a full screen printscreen module, wherein the zone partition module is used for partitioning a page into a plurality of zones by taking the HTML protocol label as the standard, and the labels correspond to the zones one by one; the printscreen zone selection module is used for selecting one or more than one zones to serve as the printscreen zone by remote control keys in the mode of a focal frame, and the zone of which the area is smaller than the preset smallest printscreen area can not be independently chosen as the printscreen zone; the image intercepting module is used for intercepting images in the printscreen zone; and the full screen printscreen module is used for intercepting the whole page images according to a full screen printscreen order input by the remote control by a user.

The invention discloses an image presenting method which comprises the following steps: receiving a source image parameter and a target background parameter used for presenting a source image, and according to the source image parameter and the target background parameter, calculating a geometric scaling parameter and a corresponding position in a target background of the source image; scaling the source image according to the geometric scaling parameter; and according to the corresponding position of the source image in the target background, combining the scaled source image into an image and outputting the combined image. The invention also discloses an image presenting device. When the invention is used for presenting the image, because the geometric scaling parameter and an optimal layout position of the source image in the target background can be correspondingly obtained according to the parameters of the source image and the target background, a picture does not need to be cut or deformed so as to ensure that the image cannot be distorted and guarantee that the source images of different proportions can be maximally combined and displayed by utilizing a target background space without distortion.

A function cigarette paper for reducing tar and improving combustion quality features that it contains the assistant composed of inorganic filler, combustion promoter and flavouring. Said inorganic filler consists of calcium carbonate, alkalimetal algate, nano-class oxide, and silicon oxide or alkali-earth metal silicate or alkali-earth metal carbonate or their mixture. Said combustion promoter is composed of alkali metal (or alkali-earth metal) carboxylate and alkali metal carbonate. Said flavouring contains cylitol or sorbitol or glocose.

The embodiment of the invention provides an image processing method and device, an electronic apparatus and a storage medium, which relate to the technical field of image processing. The method comprises the following steps: matting the object to be processed in the first image to obtain the image of the object to be processed and the second image to be processed formed after the object to be processed is matted; performing background filling on the second image to be processed to obtain a third image and performing image beautification processing on the image of the object to be processed toobtain a fourth image; fusing the third image and the fourth image to obtain a target image. The device is used for performing the method described above. As the object to be processed is matted first, background filling is performed on the second image to be processed formed after the object to be processed is matted, and the image of the object to be processed is subjected to image beautification processing, and finally, the third image and the fourth image are fused, so that the background in the final obtained target image is not distorted by the object processing.

The invention relates to a processing method for correcting the deviation of an image, comprises four steps of mathematical modeling, correction of distortional function parameters, calculation of reverse mapping coordinates and image recovery; the processing method further comprises the following steps of: according to the optical path aberration characteristic of the shooting lens, obtaining a distortional curve based on image coordinates through conversion; correcting the parameters through fitting method; calculating the mapping relation between practical imaging coordinates and ideal imaging coordinates; converting the coordinate system of the mapping relation into an image coordinate system; searching for the reverse coordinate points for the distortional image; and recovering and outputting a non-distortional image according to the image interpolation. In the invention, the complex aberration characteristic is analyzed and converted into the nonlinear curve-fitting question, and the image is zoomed while the deviation of the image is corrected; therefore, the video deviation in real time for images with different sizes is realized, and the errors of coordinate origin generated by the different manufacturing processes of different shooting modules can be corrected without needing to re-calculate the correction parameters; and the processing method is suitable for correcting images or videos with high resolution ratio, and the speed and precision of deviation correction are completely improved.

The invention relates to a voice denoising method based on computational auditory scene analysis and countermeasure network model generation. The method comprises the following steps: S1, processing noise-containing noises based on a generator generating a countermeasure network and a discriminator, thus obtaining an intermediate result; and S2, processing the intermediate result based on the computational auditory scene analysis method, thus obtaining a final result. With the method provided by the invention, part of noises in the voice signals obtained under the complicated channel background environment can be removed, and that no distortion occurs on the voice part can be well kept.

A lightweight composite panel is provided that includes at least one mineral glass or glass-ceramic panel and at least one organic layer. The weight per unit area of the lightweight composite panel is in the range from 0.5 kg/m² to 5.5 kg/m², the ratio of the total thickness of the one or more mineral glass or glass-ceramic panels to the total thickness of all of the organic layers is from 1:0.01 to 1:1 and the total thickness of all of the organic layers is less than or equal to 350 μm. The lightweight composite panel complies with the thermal safety requirements of the air travel authorities and its “Total Heat Release,” measured in accordance with JAR/FAR/CS 25, App. F, Part IV & AITM 2.0006, is less than 65 kW×min/m² and its flame time after removal of the flame in the “Vertical Bunsen Burner Test”, measured in accordance with FAR/JAR/CS 25, App. F, Part 1 & AITM 2.0002A, is less than 15 s.

A method and the equipment carrying out the water transfer printing on the surface of the large workpiece are provided. The water transfer printing method comprises the steps that (1) the workpiece is fixed on a frame and the water is poured into a water pool; (2) the water transfer printing membrane is smoothly paved on the water surface and the bubble below the printing membrane is removed; (3) an oil ink activator is sprayed on the surface of the water transfer printing membrane; (4) the frame is downwards rotated, ensuring the workpiece to be dipped below the water surface; (5) after the water transfer printing membrane is completely coated on the surface of the workpiece, the frame is upwards rotated, ensuring the workpiece to be exposed out of the water in a vertical condition, and the workpiece is removed from the frame and is flatly arranged on a cleaning table; (6) the oil sewage on the surface of the workpiece is cleaned. The invention also comprises the large workpiece water transfer printing equipment and the cleaning pool. The invention is especially suitable for the graph-text water transfer printed on the surface of the large workpiece, the graph-text by transfer printed without distortion or deformation has no rupture crack and oblique crack, and has good quality and high efficiency.

The invention discloses a chip image collecting and locating device based on a rotary reflector, relating to an image collection device. The invention aims to solve the problems that image distortion and image deformation occur in the traditional chip motion image collection process, and the chip stops once in the process of moving to an appointed patching position based on a certain path to cause low work efficiency of mounting the chip. When the chip is mounted, a suction nozzle moves downwards firstly to an M position to suck the chip; a mobile motor reversely rotates, the suction nozzle carries the chip to move upwards to an N position, a mobile base drives a rack to move upwards when moving upwards, a gear drives a reflector component to rotate, the lateral end of the reflector component rotates from a point A to a point B, lights of a light source shines on the reflector, a camera obtains a static image of the chip through the reflector, the image is treated by a computer, and the position error of the chip relative to a center coordinate system of the suction nozzle is obtained; and the motor is started to rotate, the suction nozzle rotates, and correction of chip angle error is finished. The invention is used for mounting the chip.

The invention relates to a least square method-based adaptive image radiation correction method with a linear array push-broom type. The method comprises the following steps that: a bad scanning column in an image is localized and weighted averaging is carried out on pixel gray values of normal columns at the left and the right of the bad scanning column to eliminate the influence of the bad scanning column on subsequent processing; a cause and a distribution characteristic of strips in a linear array push-broom image are analyzed and a strip column is adaptively determined according to a radiation correction precision value set by a user; for the strip column obtained by the determination, a least square method is used to carry out fitting calculation to obtain a relative radiation correction coefficient and relative radiation correction is carried out on all pixels of the strip column; and the relative radiation correction coefficient is stored into a database, thereby providing a query database for rapid subsequent application. According to the above-mentioned technical scheme, the relative radiation correction precision can be effectively ensured and it can also be guaranteed that physical significance of image data is not changed.

The invention discloses an image display method and device, a storage medium and an electronic device. The method comprises the steps of: acquiring a first image frame from multimedia data stream played currently; in a case that an image size of the first image frame is unmatched with a target image size, capturing a second image frame of which an aspect ratio is a first ratio from the first imageframe, wherein the target image size is a size of a target display region corresponding to the multimedia data stream, and the first ratio is a ratio of a width of the target image size to a height of the target image size; scaling the second image frame according to an equal ratio to enable an image size of the second image frame to be the target image size so as to obtain a target image; and displaying the target image in the target display region. The invention solves the technical problem of poor display effect of a surface plot of the multimedia data stream int he related art.

The invention relates to a driving simulator with a stereoscopic vision follow-up function. The driving simulator comprises a computer, a simulated driving platform, a projector and a vision follow-up device, wherein the computer is provided with driving simulation software, an output signal of the simulated driving platform is input to the computer, the vision follow-up device comprises a sight monitoring device, a rotating holder and a stepping motor which is used for driving the rotating holder to rotate, the sight monitoring device comprises a rotating-angle sensor which is used for monitoring the head rotation of a driver, an output signal of the sight monitoring device is input to the computer, the projector is arranged on the rotating holder, the stepping motor is controlled by the computer, and the output signal of the sight monitoring device can be used for changing an angle between a virtual camera and a virtual vehicle through the computer. According to the driving simulator disclosed by the invention, stereoscopic vision is supplied for the driver in the driving simulator, and the stereoscopic vision is not in distortion.

There is provided a medical image processing apparatus for visualizing a tubular tissue contained in volume data. The apparatus includes: a central path determination section that determines a central path of the tubular tissue; a diameter determination section that determines a diameter of the tubular tissue at a certain point on the central path; a spacing determination section that determines at least two or more different projection spacings for projecting virtual rays along the central path, depending on the diameter of the tubular tissue; a cylindrical projection section that projects the virtual rays along the central path with the projection spacing that depends on the diameter of the tubular tissue; and an image generation section that generates a cylindrical projection image of the tubular tissue, based on information provided by projecting the virtual rays and the volume data.

Disclosed are a display apparatus and a control method of the same. The display apparatus includes: a display unit, an image processing unit; an image receiving unit which receives an image from an image source; and a controller which controls the image processing unit to crop the image such that an aspect ratio of the received image becomes a preset reference aspect ratio and scale the cropped image in correspondence to a resolution of the display unit. With this configuration, an image with no distortion can be displayed.

The invention discloses a method for realizing smooth transition among animated cartoons, which comprises the steps: (a) respectively getting a last posture matrix of a previous action and a beginning posture matrix of a next action; (b) respectively disassembling the posture matrixes of the two actions into three components: zooming, rotation and translation; (c) carrying out interpolation calculation on the three components of zooming, rotation and translation to obtain new components of zooming, rotation and translation; (d) integrating the components of zooming, rotation and translation obtained after interpolation calculation into a posture matrix of a middle action; and (e) applying the posture matrix of the middle action into action postures for smooth transition. The method has the obvious characteristic that animated cartoons do not get distortion in middle transition and have a coherent and smooth transition effect.