43results about How to "Consistent Image Quality" patented technology

An inkjet printing method includes, in order, the steps ofa) providing to an inkjet printer at least two or more colorless liquids having a different composition and at least one color inkjet ink;b) mixing the color inkjet ink in a controlled amount with the two or more colorless liquids; andc) printing the ink-mixture of the color inkjet ink and the two or more colorless liquids with the inkjet printer onto an ink-receiver.

A control device determines whether an image generated by merging several concurrently picked-up images has consistent image quality on a display device. If determined No, image quality parameters set in each image pickup device are so controlled as to make the image quality of the merged image consistent. Therefore, the merged image can assuredly have consistent image quality. Further, a signal processing device detects, based on positions of nodes and attributes of cameras, a connection indicating which node is connected to which camera and with what attribute. The signal processing device in advance stores every detectable connection and a plurality of image processing programs corresponding to each connection, and selects and carries out one of the image processing programs corresponding to the detected connection.

The invention discloses a live broadcast method and device, a terminal and a storage medium, and belongs to the technical field of live broadcast. The embodiment of the invention provides a method forrealizing consistent image quality of two live streams in double-stream live broadcast and a good display effect. By means of image segmentation, one video collected by the same camera is converted into two videos with different screen modes, and the two videos are combined into two live streams. As the two paths of videos are from the same camera, the image quality of the images of the two pathsof videos is consistent, and the live broadcast effect is improved. Moreover, before the video is subjected to image segmentation, the video is beautified, so that the display effect of the images ofthe two live streams in the double-stream live broadcast can be improved.

An image reconstruction apparatus and related method. The amount of out- field-of view material for a CT scanner (IMA) with a given field of view (FoV) in a bore (B) is established. Based on the measurement, a hybrid-image reconstructor (RECONX) is configured to switch between different reconstruction algorithms.

Described herein is a cable length compensator for inclusion in video imaging systems such as X-ray video imaging systems. When such systems are installed at sites of use, cables must generally be installed in the signal path, and the lengths of these cables—which can affect signal resolution—generally cannot be predicted prior to the time of installation. The cable compensator may be situated in the signal path along with the cable to compensate the signal for the effects of the cable so that the desired gain is provided across the desired range of signal frequencies. The compensator includes a low frequency compensation path and a high frequency compensation path, wherein the low frequency compensation path provides a simple gain adjustment to low frequency signals and the high frequency path provides gain adjustment dependent on both signal frequency and cable length. The high frequency gain adjustment is preferably provided by an array of high-pass filters which provide a substantially flat response across the range of input frequencies, and at least one variable resistance which may be adjusted for the desired high-frequency gain.

The present invention is parallel image sequence bit rate controlling method for digital TV video coder. The input several video program sequences of different data sources or parallel image sequences of different spatial domain or frequency domain in the same data source, and the parallel encode unit is used to perform real-time MPEG-2 variable bit rate encoding of the image sequences. Super-frame is defined as the image frames of the image sequences in the same time, and super-image set is defined as the least common multiple of the image set sizes. The main control code rate control unit is used to perform layered and combined code rate control of the image frames, super-frame and super-image set, and the post-treating unit is used for code flow synthesis and code rate control of several compressed output data flows with the data being packaged in the multiplexer and fed to transmission channel via the buffering area.

A reflected or transmitted light scanner includes an illumination device for illuminating image material, a carrier for holding the image material, and a recording device for recording the light transmitted through the image material and for pixel by pixel conversion of the light into electric signals that can be used to generate original image signals in several colors as well as a defect signal. The reflected or transmitted light scanner further comprises a memory device for storing the image and defect signals, pixel by pixel; a computing device for generating low-pass signals from the image signals; a memory device for storing the low-pass signals, pixel by pixel; and a correction device for selecting between the image signal and the low-pass signal, or a combination of image signal and low-pass signal, for each pixel, in dependence upon the value or the position of the defect signal for the respective pixel.

The invention relates to a large zoom ratio continuous zooming projection lens. Optical system lenses comprise a focusing unit, a zoom unit, a first compensation unit, a second compensation unit, and a rear fixing unit. The units are arranged from a screen side to an image plane side along an optical axis. A diaphragm is disposed on the second compensation unit. Focusing is realized by back and forth movement of the focusing unit, and zooming is realized by moving the zoom unit, the first compensation unit and the second compensation unit in the same direction from the wide angle end to the telephotograph end along the optical axis, wherein in the zooming process, projection images are kept clear, the total distance from the first surface of the lens to the image plane is fixed, and all the lenses are made of glass which is frequently used in domestic, and are spherical lenses. The large zoom ratio continuous zooming projection lens is low in the cost and good in technology, is suitable for batch production, and can be widely applied to the field of mini projection.

A pigment dispersion includes a color pigment and a polymeric dispersant having at least one pending chromophore group covalently bound to the polymeric backbone of the polymeric dispersant through a linking groupwhereinthe color pigment is selected from the group consisting of monoazo pigments, disazo pigments, β-naphtol pigments, naphtol AS pigments, azo pigment lakes, benzimidazolone pigments, disazo condensation pigments, metal complex pigments, isoindolinone pigments, isoindolinine pigments, phthalocyanine pigments, quinacridone pigments, diketopyrrolo-pyrrole pigments, thioindigo pigments, anthraquinone pigments, anthrapyrimidine pigments, indanthrone pigments, flavanthrone pigments, pyranthrone pigments, anthanthrone pigments, isoviolanthrone pigments, aluminium pigment lakes, dioxazine pigments, triarylcarbonium pigments and quinophthalone pigments;the at least one pending chromophore group has a molecular weight which is smaller than 85% of the molecular weight of the color pigment;the at least one pending chromophore group occurs as a side group on the polymeric backbone and not as a group in the polymeric backbone itself or occurring solely as an end group of the polymeric backbone;the linking group consists of all the atoms between the polymeric backbone and the first atom of the aromatic group by which the pending chromophore group is linked to the polymeric backbone; andthe at least one pending chromophore group has a similarity coefficient SIM of at least 0.75, with the similarity coefficient defined by:SIM=t·CM+P-Cwherein,M represents the number of atoms in the at least one pending chromophore group;P represents the number of atoms in the color pigment;C represents the largest number of atoms in common between the at least one pending chromophore group and the color pigment as one continuous structure; andt is an integer representing the number of times that the largest number of atoms in common C fits into the organic color pigment, without using atoms of the color pigment twice. A method for preparing the pigment dispersion wherein the polymeric dispersant is prepared by copolymerizing a monomer already containing the pending chromophore group is also disclosed.

The invention relates to a long-focus lens. The long-focus lens comprises a first lens group,an optical lens group and a second lens group in sequence from the object side to the image side in the optical axis direction,wherein the second lens group comprises at least one non-spherical lens or two gluing lenses. The optical device solves the effects of field curvature and coma on the long-focus optical system and remarkably improves the image quality of the whole picture,and has a small depth of field and a large magnification.

A pigment dispersion includes a color pigment represented by formula (I):whereinX1 to X4 are independently selected from the group consisting of hydrogen and a halogen atom;R1 to R10 are independently selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, a methoxy group, and an ethoxy group;and a polymeric dispersant, having via a linking group covalently linked to its polymeric backbone, at least one pending chromophore group which has a molecular weight smaller than 90% of the molecular weight of the color pigment; wherein the at least one pending chromophore group is a chromophore group occurring as a side group on the polymeric backbone and not a group in the polymeric backbone itself or occurring solely as an end group of the polymeric backbone;and the at least one pending chromophore group is represented by formula (II):whereinone of L1, L2, or L3 is the linking group and is selected from the group consisting of an aliphatic group, a substituted aliphatic group, an unsaturated aliphatic group, and a substituted unsaturated aliphatic group;L1, L2, and / or L3, if not representing the linking group, are independently selected from the group consisting of hydrogen, an alkyl group, an alkenyl group, an alkoxy group, a carboxylic acid group, an ester group, an acyl group, a nitro group, and a halogen;AR1 and AR2 represent an aromatic group; andn represents the integer 0 or 1. The pigment dispersion can be advantageously used in inkjet inks. Also disclosed are methods for preparing the inkjet ink.

A pixel circuit includes an electro-optical element configured to emit light in response to a drive signal, a drive transistor configured to supply the drive signal to the electro-optical element, a pixel capacitor connected to a control input terminal of the drive transistor, a switching transistor provided at the control input terminal of the drive transistor, and a drive-signal stabilizing circuit configured to maintain the drive signal at a constant level. Each of the drive transistor and the switching transistor has a lightly doped drain structure, and a lightly doped drain region of the switching transistor has a longer length than a lightly doped drain region of the drive transistor.

The invention discloses an optical imaging system based on beam splitter prisms and an ultrahigh frame frequency imaging method. The optical imaging system comprises an optical system and detector assemblies, wherein the beam splitter prisms are contained in the optical system; after a beam enters into the optical system, the beam is split through the beam splitter prisms in the optical system andis finally imaged on the detector assemblies respectively, simultaneously, the detector assemblies are controlled to carry out exposure in sequence so as to realize the high frame frequency imaging of a scene; the beam splitter prisms are arranged inside the optical system, and eight imaging light paths formed after the beam passes through every beam splitter prism are completely the same. The conflict between high resolution and frame frequency is solved, and the system has the characteristics of high frame frequency, high solution, compact structure, good imaging, convenience in use, high environmental suitability and the like.

The invention discloses an image reconstruction method and device as well as a CT (Computerized Tomography) machine. The image reconstruction method disclosed by the invention is used for carrying out image reconstruction according to projection data obtained by an asymmetrical detector and comprises the following steps of: dividing the projection data into 5 regions, namely a region I, a region II, a region III, a region IV and a region V; respectively carrying out visual angle weighting on the projection data in the five regions; and reconstructing a sectional image of a shot object according to the weighted projection data. The image reconstruction device disclosed by the invention comprises a region dividing unit, a visual angle weighing unit and a reconstruction unit. The CT machine disclosed by the invention comprises the image reconstruction device disclosed by the invention. According to the technical scheme of the invention, the quality of the image which is constructed according to the projection data obtained by the asymmetrical detector is equal to that of the image which is reconstructed according to the projection data obtained by a symmetrical detector.

A substrate-check equipment has a conveyer, at least two lamps, at least two image acquisition units and a control unit. The conveyer conveys a substrate. The lamps are mounted respectively above and below the conveyer to respectively shine light onto the substrate. Each lamp has an adjusting unit for adjusting intensity of the lamp. The image acquisition units correspond to the lamps and are mounted respectively above and below the conveyer to respectively capture images of the substrate and generate image signals. The control unit is electronically connected to the lamp and the image acquisition units. Emitted light intensity of the lamps is adjusted to ensure consistent image quality and speed up procedures for checking the substrate.

The invention relates to a continuous zooming projection lens. An optical system lens group comprises a focusing group U1 with negative focal power, a focusing group U2 with positive focal power, a compensating group U3 with negative focal power and a back fixed group U4 with positive focal power, which are distributed along an optical axis in sequence from the screen side to the image plane side; the focusing is realized by the back-and-forth movement of the U1 group; the zooming is realized by the homodromous movement of the U2 and the U3 from the wide angle end to the remote shooting end along the optical axis; in the zooming process, the total distance from the first surface of a lens to the image plane is not changed; the projection lens has the characteristic of achieving satisfactory imaging quality on the image plane of a longer back working distance, and the like; and the lenses all adopts spherical lenses, has high manufacturability and is suitable for mass production.

The invention provides a combined secondary imaging vision light source which comprises upper and lower concave lenses, upper and lower ring light sources, an upper double-glueed right-angle prism, aquadruple prism and a lower double-glueed right-angle prism, wherein the upper double-glueed right-angle prism, the quadruple prism and the lower double-glueed right-angle prism are located between the upper and lower ring light sources and successively superimposed from top to bottom. When measuring is carried out, the light path of an upper object above the upper concave lens passes through theupper concave lens and the upper double-glueed right-angle prism, directly comes into the quadruple prism, is refracted at right angle by the upper refracting surface in the quadruple prism, directlypasses through the quadruple prism, and then directly comes into an imaging camera for imaging. The light path of a lower object below the lower concave lens passes through the lower concave lens andthe lower double-glueed right-angle prism, directly comes into the quadruple prism, is refracted at right angle by the lower refracting surface in the quadruple prism, directly passes through the quadruple prism, and then directly comes into the imaging camera for imaging. According to the invention, the light paths of the quadruple prism are used; optical path difference is prevented; and the imaging quality of the upper object and the lower object is completely consistent.

Provided is a method for delivering a medical fluid. The method includes delivering a fluid volume, which includes contrast and / or a flush fluid, at a preselected total volumetric flowrate during a first duration of a fluid delivery procedure. The amount of the contrast agent and the flush fluid in the fluid volume can be controllably varied during the first duration of the fluid delivery procedure so as to substantially maintain a preselected total volumetric flowrate throughout the first duration of the fluid delivery procedure. Also provided is a fluid delivery system capable of performing this method.

The invention relates to a terahertz compression imaging optimization method and system based on data selection. The terahertz imaging optimization device comprises a terahertz emission source, a collimating lens, a mask plate, a converging lens and a terahertz detector, wherein a modulation matrix in the mask plate is a binary random matrix containing [0, 1], terahertz waves are emitted by the emission source, the light is converted into uniform parallel light after passing through the collimating lens, the uniform parallel light is irradiated to the mask plate and an imaging object, amplitude modulation of the imaging object is achieved, the modulated transmission light is focused to a focus after passing through the converging lens, the intensity of the modulated transmission light is measured through a terahertz detector, then data is processed through sorting and optimization selection algorithms, and image restoration is conducted through the compressed sensing principle. The device is advantaged in that an expensive array type terahertz detector is not needed, the terahertz image can be obtained through a small number of measurement times, the imaging quality processed through the data optimization and recombination method is superior to that of a traditional compressed sensing imaging method, and better and faster terahertz compressed sensing imaging is achieved.

A light system includes a light source for emitting divergent light, and only one imaging lens arranged in front of the light source in the divergent light for imaging the divergent light directly received from the light source, where the imaging lens is one-piece fabricated part and comprises a first lens section with a non-structured and convex light entry surface curved in a direction of the light source for the entry of the divergent light of the light source into the imaging lens, a second lens section with a convex light exiting surface curved in a light propagation direction for imaging the light entered, and a mask arranged between the first and second lens sections for modifying the light entered into the first lens section before leaving the light exiting surface.

Provided is a method for delivering a medical fluid. The method includes delivering a fluid volume, which includes contrast and / or a flush fluid, at a preselected total volumetric flowrate during a first duration of a fluid delivery procedure. The amount of the contrast agent and the flush fluid in the fluid volume can be controllably varied during the first duration of the fluid delivery procedure so as to substantially maintain a preselected total volumetric flowrate throughout the first duration of the fluid delivery procedure. Also provided is a fluid delivery system capable of performing this method.

A networked product imaging system includes devices that provide the production of imaged goods. Sellers are easily integrated into the network with minimal or no inventory requirements. Customer requirements are provided to a central computing device (CCD) that has two-way communication with a plurality of geographically separated product image forming devices. The central computing device determines specifications for forming the image on the blank product in accordance with the customer's order. The central computing device selects a product image forming device from the plurality of geographically separated product forming devices for fulfilling the order, based upon factors that include the specification of the product image forming device available, the product image forming inventory and the blank product inventory available at the geographic location of the product image forming device. The selected product image forming device forms the image on the blank product at the remote location.

The invention provides a half-compensation X-radiographic testing method for the thicknesses of inserting-bushing type welding lines. The method comprises the following steps: (a) selecting an arc-shaped plate as a compensation block, wherein the arc radius of the compensation block is accordant with the focal length during a X-radiographic process; (2) machining a plurality of compensation holes in the compensation block, wherein the diameter of each compensation hole is 1.01-1.03 times the thickness of the compensation block, and the distances from the welding lines to the edge of the compensation block are not less than 10mm by virtue of the depths of the compensation holes; (3) inserting the inserting-bushing type welding lines into the compensation holes during an X-ray transillumination process, putting an integral body formed by the inserting-bushing type welding lines and the compensation block on a film, and carrying out transillumination in a central exposure manner, wherein the radiographic condition parameters are that the focal length is 500-1000 mm, the quantity of exposure is 15-40 mA.min, and the transillumination voltage is 150+ / -30 kV. According to the method disclosed by the invention, the imaging qualities of different regions in the compensation block are accordant; as the thickness of the compensation block is slightly smaller than the diameter of each compensation hole, the transillumination thickness is effectively reduced, the radiographic sensitivity is greatly improved, and the accuracy and reliability of a detection result are guaranteed.

The invention relates to an imaging system. The imaging system comprises a front lens group and a back lens group; from an object side to an image side, the front lens group and the back lens group are orderly arranged along an optical axis; the front lens group has positive focal power, and the back lens group has positive focal power; the back lens group is the fixed lens group with a fixed location, and the front lens group is a focusing lens group and capable of moving along the optical axis; the focal length f of the imaging system and the focal length fg1 of the front lens group satisfies a condition that the fg1 / f is more than 1 and less than 1.1; an objective image magnification is between 0 time and a large magnification, and the large magnification is greater than 0.4 times; theimaging object distance is to infinity object from short-distance object, and the short-distance range is within 0.1m. The lens imaging frame is large and the distortion is low, the resolution can achieve 90 million pixels, the imaging is better, more plentiful and delicate, the shallow depth of field effect is more excellent, and the environment change resistance is strong.

The invention relates to a data selection-based terahertz compression imaging optimization method and system. It includes: a terahertz emission source, a collimating lens, a mask plate, a converging lens and a terahertz detector, and the modulation matrix in the mask plate is a binary random matrix including [0,1]. The terahertz wave is emitted by the emission source, and after passing through the collimating lens, it becomes uniform parallel light and irradiates the mask and the imaging object to realize the amplitude modulation of the imaging object. The modulated transmitted light is focused to the focal point after the converging lens. The detector measures its intensity, and then the data is sorted and processed by an optimized selection algorithm, and the image is restored through the principle of compressed sensing. The present invention does not require expensive array terahertz detectors, and can obtain terahertz images through a small number of measurements. The imaging quality after data optimization and reorganization is better than that of traditional compressed sensing imaging methods, achieving better and more Fast terahertz compressed sensing imaging.