90results about How to "Reduce streaks" patented technology

We present an iterative method for reducing artifacts in computed tomography (CT) images. First, a filter is applied to the experimental projection data that adaptively expands the detector element size in regions with low photon counts, until the desired number of photons are detected. The initial image is then calculated using an existing reconstruction technique. In each iteration, artifacts and noise in the current image are reduced by using an edge-preserving blur filter. Metal pixels (determined from the initial image) are replaced with smaller values. The resulting image is forward projected. Rays that go through metal are replaced with the forward projected values. Rays that do not pass near metal are kept at the experimental values. Filtered backprojection is then performed on the new projection data to determine the updated image. Finally, after the last iteration, metal pixels are copied from the initial image.

Multi-functional wipes with desirable ecological profiles and improved performances are disclosed. The wipes may include a substrate and a cleaning composition, a disinfecting/sanitizing composition, and an optional fragrance composition releasably associated with the substrate. The compositions may be separated from one another and may be impregnated in or coated on distinct sections of the substrate. Unlike “wet” wipes preloaded with a dilute cleaning liquid, the disclosed wipes may be substantially dry and water-activated just prior to its application on a target surface.

A plasma etch process for forming a high aspect ratio contact opening through a silicon oxide layer is disclosed. The silicon oxide layer is plasma etched using etch gases that include at least one organic fluorocarbon gas. At least one etch gas is used that includes one or more nitrogen-comprising gases to deposit a surface polymeric material during the etching for maintaining a masking layer over the silicon oxide layer. The method of the invention achieves a complete and anistropic etching of a contact opening having a high aspect ratio and the desired dimensions.

The present invention relates to a method for improving the relative radiation calibration of a CCD camera. The method comprises: an improved scaling coefficient model is used for carrying out relative radiation calibration on images so as to eliminate fine stripe noise; based on the image data after the relative radiation calibration, the difference of average gray scale values between odd line data and even line data is counted; the difference of the average gray scale values is respectively covered on the odd line data and the even line data so as to remove odd and even image element difference; and a brightness difference value of a middle CCD array sub-image and a left and a right CCD array sub-images is obtained by image statistics, the brightness difference value is the fluctuation of the left and the right CCD array bottom level, and the fluctuation is used for compensating the offset value of the left and the right CCD arrays so as to remove the color difference of the three CCD arrays. The technical proposal of the present invention can effectively improve image quality so as to effectively remove the odd and even image element difference, stripe noise and the color difference in the arrays and between the arrays, and improve the relative radiation calibration precision of the images.

The present invention is directed to a multi-surface cleaning composition having an anti-bacterial ingredient for cleaning furniture surfaces. The anti-bacterial cleaning component includes a quaternary ammonium chloride compound or combinations thereof. The composition further includes a pH adjuster to provide for a generally neutral pH in the range of about 6 to about 9 including a combination of components, preferably white distilled vinegar and an amine compound. The cleaning composition provides for good cleaning and disinfecting of wood surfaces and other furniture surfaces without leaving streaks.

A solid-state imaging device that suppresses streaking includes an imaging region in which unit cells are aligned in matrix, an A/D converter for converting an analog signal generated in the imaging region to a digital signal, and a ramp buffer having an input terminal and an output terminal. Ramp voltage is input to the input terminal, and a reference signal having the ramp voltage is output from the output terminal toward the A/D converter. The A/D converter includes a comparator disposed in each column for comparing an analog signal with a reference signal, and a counter disposed corresponding to the comparator for counting a comparison period of the comparator. The ramp buffer includes a feedback circuit for simultaneously outputting the reference signal to the multiple comparators and controlling the amount of current flowing to the output terminal according to the ramp voltage of the reference signal output from the terminal.

An image reading apparatus capable of continually conveying a plurality of originals in a stable manner while cleaning a contact glass of an image sensor and reducing streaks occurring in read images. An image sensor reads an original image via a contact member which the conveyed original may contact. A cleaning member, being provided on a turning member which is able to rotate or swing and disposed at a position opposing the image sensor, cleans the contact member's surface which the original may contact. The turning member is turned by a driving unit. A controlling unit controls the driving unit to turn the turning member so that cleaning of the contact member is performed by the cleaning member after the original has passed an image reading position of the image sensor and before a subsequent original reaches the image reading position.

A method for etching a feature in an etch layer is provided. A patterned photoresist mask is formed over the etch layer with photoresist features with sidewalls wherein the sidewalls of the photoresist features have striations forming peaks and valleys. The striations of the sidewalls of the photoresist features are reduced. The reducing the striations comprises at least one cycle, wherein each cycle comprises etching back peaks formed by the striations of the sidewalls of the photoresist features and depositing on the sidewalls of the photoresist features. Features are etched into the etch layer through the photoresist features. The photoresist mask is removed.

A glass melt handling vessel, such as a glass melting furnace, comprising a side-wall monolithic electrode having a stack of multiple pieces of blocks of electrode material, or a pushable electrode, and a method of making a glass material using such vessel. The pushability and/or the use of stacked monolithic electrode prolong vessel life and improves glass melt quality during life cycle of the vessel.

The invention relates to a transparent conducting film which comprises a transparent substrate and a conducting layer which is arranged on the transparent substrate, wherein the conducting layer comprises at least one transparent electrode which is an irregular conducting grid formed by a conducting material; the grid line width of the conducting grid is not greater than 2.5 microns. According to the transparent conducting film, the transparent electrode is designed into the irregular conducting grid shape which is formed by the conducting material, when the transparent conducting film is fitted with a display device, the transparent electrode is prevented from overlaying with a periodic regular grid pattern of a black matrix of a color filter, stripes with remarkable bright and dark difference can be thus eliminated and reduced, and the imaging effect is improved; the grid line width of the conducting grid is not greater than 2.5 microns, when the transparent conducting film is applied to a high definition display device, the visibility of grid lines of the conducting grid is remarkably reduced, the visual effect is thus improved, and the imaging quality is improved. In addition, the invention also relates to an electronic device containing the transparent conducting film.

An arrangement for an X-ray image system with a grid frame arranged to enable the grid frame to oscillate is provided. The arrangement includes a switch unit, with which an anti-scatter grid inserted into the grid frame may be detected. An X-ray emission is only triggered by the switch unit at a predeterminable activation time if an anti-scatter grid is inserted.

The invention provides a protective plate-free steel band water-cooling quenching device which comprises an upper fixed plate, a lower fixed plate and a stand column fixed between the upper and lower fixed plates; an upper water tank is arranged on the upper fixed plate; an upper pressing plate is arranged at the bottom of the upper water tank; a lower water tank is arranged on the lower fixed plate; a lower pressing plate is arranged at the top of the lower water tank; a steel band which is used for cooling quenching through the heat conduction of the upper and lower pressing plates is penetrated between the upper and lower pressing plates; and hard chromium layers are electroplated on the surfaces of both the upper and lower pressing plates. Through the invention, the cost of the heat treatment of the steel band is decreased, the stripes on the surface of the steel band are decreased, the surface quality of the steel band is improved, the rejection ratio of the heat treatment of the steel band is decreased and the quenching degree of the steel band is improved.

The present invention is directed to a surface cleaning and maintenance composition including a non-ionic surfactant, a quaternary ammonium surfactant and water. Optionally, neutralizer and fragrance can be included in the composition. The inventive composition can be used in highly dilute concentration to clean and maintain stone surfaces while minimizing undesirable adverse appearance effects.

The invention provides a Computer-to-plate (CTP) printing plate base aluminum strip and a preparation technology thereof. The strip comprises the following elements in percentage by weight: 0.07-0.11%of Si, 0.3-0.4% of Fe, 0.12-0.18% of Mg, 0.015-0.036% of Mn, 0.002-0.004% of Zn, 0.01-0.02% of V, 0.011-0.014% of Ti, 0.001-0.005% of Cu, 0.006-0.009% of Cr, and the balance aluminum; and the surfaceroughness Ra of the strip is 0.15-0.25 microns. The preparation technology comprises the steps of smelting raw materials, casting a slab ingot, thermally processing the slab ingot, thermally rollingunder low temperature, and preparing the strip. According to the CTP printing plate base aluminum strip prepared by the method, longitudinal stripy textures on the surface of a printing plate base blank can be effectively improved, and moreover, the mechanical performances are outstanding in both normal temperature and high temperature; and moreover, the strip has the advantages of being high in ductility, high in corrosion uniformity, and high in baking temperature resistance; and the printing times of downstream customers and the quality of a printing plate base can be obviously improved.

The invention discloses a color film substrate, a manufacturing method thereof and a display panel, and belongs to the technical field of displayers. The surface of the side, facing an array substrate, of the color film substrate makes contact with a spacer, and at least one layer of the color film substrate is of a hollowed structure which is used for increasing friction force between the color film substrate and the spacer. The color film substrate solves the problem that stripes will occur on the surface of a liquid crystal display and affect the display effect, and achieves the effects of reducing stripes on the surface of the liquid crystal display and improving the display effect.

The present invention relates to a yarn clearing device for yarn spool processing. The yarn clearing device comprises a working table, a yarn collecting device and a clearing device, wherein the rightend of the upper end surface of the working table is provided with the yarn collecting device, the front left side of the yarn collecting device is provided with the clearing device, and the lower end of the clearing device is mounted on the upper end surface of the working table. According to the yarn clearing device for yarn spool processing, defect points of impurities such as hairiness on thesurface of a yarn are cleared by adopting a design concept of multi-point clearing, and the impurities such as the hairiness in forward and reverse states on the yarn can be cleared, so that the yarnclearing degree is improved; and cutters with different sizes are adopted for adapting to yarns with different sizes and types, so that the application range and the utilization rate of the yarn clearing device are expanded and improved.

A material for the lens with gradient refractivity is prepared from thallium oxide 30-45 wt%, sodium (or potassium) oxide 5-12%, zinc oxide 6-12%, SiO2 34-50%, calcium oxide 0-5%, Al2O3 1-6%, zirconium oxide 0-2%, La2O5 0-5% and B2O3 0-10% through compounding, smelting, drawing into filament, ion exchange, surface treating and examining. Its advantages are less color difference, less volatilization in smelting, high Abbe number and high consistence.