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58results about How to "Avoid halo" patented technology
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Image taking device and method of controlling exposure
ActiveUS20080111913A1Accurately determineSimple configurationTelevision system detailsPhotometryExposure controlExposure value
An aspect of the present invention provides an image taking device comprising an image pickup device which picks up an image in a field, a luminance measuring device which divides the image into the predetermined number of blocks to measure the luminance level of each block, a reference average luminance level calculating device which calculates an average luminance level in a predetermined reference area in the image, a bright block sampling device which compares the average luminance level in the reference area with the luminance level of each block to sample a bright block high in luminance level, a backlight determining device which determines whether the picked up image is backlit based on the average luminance level of the bright blocks and the average luminance level of the reference area, and an exposure controlling device which calculates an exposure value based on the result of the determination as to the backlight to control exposure.
Owner:FUJIFILM CORP
Graphics processing method and system
ActiveUS20060087518A1Avoid haloAvoids other artifactImage enhancementDetails involving antialiasingGraphicsAnti-aliasing
Flood filling a region with anti-aliasing. In forming a fill region, a candidate pixel can be included in the region based on a color of the pixel and also a color of a neighbor of the point. The inclusion basis may be a color distance between a seed color and the points, and a color distance between the seed color and the point's neighbor. Points in the region may be weighted according to their color distance relative to the seed color, where the color distance can also take into account alpha values. Flood filling may be anti-aliased by assigning alpha values to pixels in gaps between corners of the fill region, where an alpha value may be proportional to a point's contribution to the gap. Dimples in a fill region may be tested for and used to determine which of two flood fill algorithms to use.
Owner:AUTODESK INC
Illuminating Device For Tools
InactiveUS20100085730A1Reduce radiant heatAvoid radiating heatLighting applicationsMechanical apparatusEngineeringSingle lead
An illuminating device for machining tools is disclosed. A machining tool is installed with an illuminating device that uses a single LED prepared using the multi chip single module technique to provide high-power light. This elongates the lifetime of the illuminating device and has the advantages of power-saving and low temperature. The light thus produced does not have UV and IR components. In addition to no radiation injury to human bodies, the invention also avoids overlapped shadows in the case of multiple LED sources. Such a design of the cold and single light source can effectively bad influences on the precision of objects 31 being processed.
Owner:AVEX SG TECH +2
Shading ring processing method and shading ring
The invention discloses a shading ring processing method and a shading ring. The method comprises the following steps that the shading ring is provided, the shading ring comprises a body, an anti-static coating and a through hole, the anti-static coating coats the body, the through hole is formed in the body, the body is made of plastic materials, and the anti-static coating is a carbon dust layer; the wall of the through hole is corroded through aqueous alkali to form a matte structure. According to the shading ring processing method and the shading ring, the shading ring is processed inside an ultrasonic generator through aqueous alkali so that the matte structure can be formed on the wall of the through hole of the shading ring, the poor phenomena of dazzling, halo, ghosting and the like caused by reflection of the wall of the through hole are avoided, and therefore the photographing effect is ensured and the photographing product quality is improved.
Owner:东莞市山形光学有限公司
Brightness adjustment method and device of display screen and air conditioner
InactiveCN104575446AAvoid haloGood display statusCathode-ray tube indicatorsComputer scienceComputer engineering
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Image enhancing method based on self-adaptive block channel stretching
InactiveCN105809643AReduce human interactionAvoid haloImage enhancementImage analysisFoggingExposure
The invention discloses an image enhancing method based on self-adaptive block channel stretching. The method mainly solves two important problems of image defogging and exposure adjustment in image enhancement. In the prior art, many methods provide solution schemes for the two problems, but the methods have the defect that a plurality of thresholds for image adjustment are needed, and this kind of methods requires user interaction operation and fail to process a plurality of images at one time; in addition, in the prior art, fogged images and dark light images are taken as two kinds of image enhancing problems which are solved respectively, and a unified framework is lacked. Aimed at the defects of the existing methods, statistic learning is carried out on various kinds of images in a real world, a self-adaptive threshold of problem image adjustment is obtained, the manual interaction operation of a user is reduced, and the processing efficiency is improved; in addition, stretching conversion is simultaneously carried out on a highlight channel and a shadow channel of an image block, and the problem images including the fogged images and the dark light images can be enhanced under the same framework.
Owner:ZHEJIANG INT STUDIES UNIV
Smart erasure brush
InactiveUS20050074165A1Quick and simple selectionImprove accuracyImage analysisTexturing/coloringDigital imageColor matching
Methods and apparatus, including computer program products, for erasing in a digital image. A method includes identifying a plurality of tip regions on the image, establishing an erasure color, and completely erasing pixels in the tip region that have a color matching the erasure color. Pixels having partially matching colors are partially erased and color decontaminated.
Owner:ADOBE SYST INC
Infrared and visible light image fusion method based on side window guided filtering
PendingCN112419212AEfficient separationIncrease diversityImage enhancementImage analysisImaging processingContrast level
The invention discloses an infrared and visible light image fusion method based on side window guided filtering, and belongs to the technical field of image processing. The method comprises the steps:carrying out the fuzzy processing of an input infrared and visible light source image through employing a Gaussian filter, and obtaining a large-scale base layer; subtracting the base layer image from the infrared and visible light source images to obtain a detail layer image containing small-scale information; calculating correlation coefficients of the infrared light source image and the visible light source image to obtain a fusion weight coefficient of the base layer, and fusing the base layer image; obtaining an initial detail layer weight graph by using a maximum absolute value rule, optimizing the initial detail layer weight graph by using side window guided filtering, and fusing detail layer images; and carrying out secondary fusion by using the fused base layer image and detail layer image to obtain a final fused image. According to the invention, the fusion of infrared and visible light images can be realized, and the fused image can maintain good contrast.
Color image forming apparatus
InactiveUS20010028815A1Improve image qualityAvoid haloElectrographic process apparatusDevelopersColor imageAcrylic resin
A color image forming apparatus includes a photosensitive belt, which consists of a resinous base sheet and an organic photosensitive layer formed thereon. The photosensitive layer consists of a charge transport layer and charge generation particles dispersed therein. The image forming apparatus ensures good color image quality even if the developer used for this former is toner made of styrene-acrylic resin. The image forming apparatus also includes developing rollers in contact with the photosensitive belt. Suitable shearing force can be applied to the toner if the speed ratio of the developing rollers to the photosensitive belt ranges from 1.3 to 2.0. The developer includes an external additive which has a particle diameter of 30 or more nm. The external additive can effectively prevent printed sheets from halation.
Owner:BROTHER KOGYO KK
Image display apparatus
InactiveUS20080084160A1Avoid haloReduce color unevennessDischarge tube luminescnet screensCathode ray tubes/electron beam tubesFluorescenceElectron
There is provided an image display apparatus comprising: a rear plate having a plurality of electron-emitting devices; a face plate having a plurality of fluorescence substances with different light emitting colors; and a plate-like spacer for defining an interval between the rear plate and the face plate, wherein the spacer has an aperture that allows a reflection electron generated on the face plate to pass through the plate-like spacer in a thickness direction and to reenter the face plate, and wherein the amount Et of the reflection electron that is irradiated to the fluorescence substance closest to the spacer through the aperture is defined as Et>0.3×En, where the amount of the reflection electron to be irradiated to the fluorescence substance is En when no spacer is located.
Owner:CANON KK
Smart erasure brush
InactiveUS7400763B2Quick and simple selectionImprove accuracyImage analysisTexturing/coloringDigital imageColor matching
Methods and apparatus, including computer program products, for erasing in a digital image. A method includes identifying a plurality of tip regions on the image, establishing an erasure color, and completely erasing pixels in the tip region that have a color matching the erasure color. Pixels having partially matching colors are partially erased and color decontaminated.
Owner:ADOBE SYST INC
Image defogging method, image defogging system and computer readable storage medium
InactiveCN111192205AAvoid haloImprove visual effectsImage enhancementImage analysisComputer graphics (images)Computational physics
The invention provides an image defogging method, an image defogging system and a computer readable storage medium. The method comprises the following steps: obtaining a foggy image I(x); preliminarily estimating an atmospheric light value A0 by adopting a quadtree search method; correcting the atmospheric light value A0 according to a self-adaptive atmospheric light correction method to obtain acorrected atmospheric light value A; calculating a dark channel mean value of the foggy image I(x); estimating a projection rate tM(x) according to the dark channel mean value; performing adaptive compensation on the projection rate tM(x) to obtain a compensated transmittance t(x); respectively inputting the corrected atmospheric light value A and the compensated transmissivity t(x) into an imagedefogging model I(x) = J(x)t (x) + (I-t(x))A to obtain a defogged image J(x); and adjusting the image brightness of the defogged image J(x) by adopting an adjustment function to obtain a restored image. According to the method, the problems of halo, color distortion and the like can be effectively avoided, and the restored image is outstanding in detail and has a better visual effect.
Owner:晏子俊
Image defogging method
InactiveCN105989583AImprove real-time performanceHigh precisionImage enhancementAccuracy improvementEstimation methods
The invention discloses an image defogging method. The method uses a new transmittance estimation method to replace a soft matting method, the transmittance is solved through gain intervention on the three-primary color channel minimum component for a foggy image, on the premise of avoiding halation and fast effects, the approximate dark channel image intensity is solved quickly, the real-time performance of the algorithm is thus improved, a quad-tree subdivision method is used for estimating the atmospheric light value, the atmospheric light value precision is improved, and finally, through the transmittance and the atmospheric light value, defogging is carried out on multiple images. The method of the invention improves the real-time performance of defogging and the fidelity of a defogged image.
Owner:HOHAI UNIV
Display device
PendingCN111031155AVolumetric space narrowsSolve the problem of cross-light occurrence in gapsTelephone set constructionsCamera lensDisplay device
The invention provides a display device. The display device comprises a display screen and a camera module; the display screen comprises a first substrate and a second substrate which are oppositely arranged. A first focusing lens is locally formed on the first substrate, and a second focusing lens is locally formed on the second substrate, wherein the first focusing lens and the second focusing lens are oppositely arranged, the first focusing lens and the second focusing lens are combined to form a pick-up lens, and the pick-up module and the pick-up lens are correspondingly arranged. According to the invention, the display device does not need to be additionally provided with a lens, so the volume space formed after the camera module and the display screen are assembled is greatly narrowed, the problem that a gap exists between the camera lens and the display screen to cause optical crosstalk can be effectively solved, the halo of images during imaging is avoided, and the product quality and the market competitiveness are improved.
Owner:SHANGHAI TRANSSION CO LTD
Stereoscopic endoscope system
InactiveUS20140063201A1Removing white halationAvoid haloEndoscopesSteroscopic systemsDistribution controlComputer science
To obtain various types of information on an observed portion such as a body tissue, white halation is effectively generated in images obtained by imaging the observed portion with a plurality of image sensors. A stereoscopic endoscope system including: a light illuminating unit which irradiates an observed portion with illumination light; an endoscope which has an objective optical system including a plurality of image sensors for receiving reflected light from the observed portion; an image analyzing unit which analyzes images obtained by the objective optical system; and a light amount distribution control unit which controls a light amount distribution of the illumination light based on an analysis result of the images.
Owner:CANON KK
Method and apparatus for improving image quality
InactiveUS20070085930A1Low costSolve the real problemTelevision system detailsImage enhancementPattern recognitionImaging quality
A method (and apparatus) of improving an image quality of a video signal which is supplied on a frame-by-frame basis, includes extracting high frequency components associated with a video signal of an n-th frame (where n is a natural number), and adding the extracted high frequency components to a video signal of an (n+m)th frame (where m is a natural number).
Owner:NEC DISPLAY SOLUTIONS LTD
Image blurring method and device, terminal and computer readable storage medium
PendingCN111402111AAvoid haloAvoid interferenceGeometric image transformationComputer graphics (images)Radiology
The invention discloses an image blurring method and device, a terminal and a computer readable storage medium. The image blurring method comprises the steps of obtaining a background image in a firstimage; performing expansion processing on the background image to obtain a first processed image; blurring the first processed image, the expansion radius of the expansion processing being greater than the blurring radius of the blurring processing; and combining the blurred first processing image with the foreground part in the first image to obtain a blurred result image. Through adoption of the method, the problem of halo caused by image blurring can be well solved.
Owner:SHENZHEN SENSETIME TECH CO LTD
Cutting device
ActiveCN107045976AAvoid haloSemiconductor/solid-state device testing/measurementSemiconductor/solid-state device manufacturingPressure transmissionEngineering
The invention provides a cutting device. The cutting device 2 is provided with a retaining working bench 10 used to retain a processed object 11. The retaining working bench comprises a retaining tool 14 and a tool base 12. The retaining tool is provided with a retaining surface 14a, which is used to retain the processed object; a plurality of retracting grooves 14c used for the cutting tool, which are disposed on the position of the segmentation predetermined line 19 of the processed object retained by the retaining surface; a plurality of absorption holes 14d, which are disposed in the various areas divided by the retracting grooves of the cutting tool. The tool base is provided with a negative pressure transmission part 12b, which is used to transmit negative pressure to the absorption holes; a carrying part (12a), which is used to carry the retaining tool. The retaining tool is provided with a plurality of cutting liquid overflow grooves 14e, which are adjacent to the retracting grooves used for the cutting tool in a corresponding way, and are provided with bottom surfaces 14g lower than the bottom surfaces 14f of the retracting grooves used for the cutting tool.
Owner:DISCO CORP
LED illuminating apparatus
InactiveCN101303116AImprove lighting effectsEasy to meet light distribution requirementsPlanar light sourcesLight source combinationsLuminous intensityFace shape
The invention discloses an LED illumination device which comprises a shell body and a plurality of LEDs; the LEDs form a plurality of LED light emitting modules sheltered in the shell body; at least two LEDs are arranged on each LED light emitting module; the light emitting modules are connected in parallel; the LEDs are distributed in outward-protruding arc face shape towards the light generating direction and form a light emitting array; at least two light emitting modules are respectively arranged on each row and line of the light emitting array; at least two of the light emitting modules have different luminous intensities.
Owner:NINGBO ANDY OPTOELECTRONIC CO LTD
Image processing method and device
InactiveCN105979121AAvoid haloTelevision system detailsColor television detailsPattern recognitionImaging processing
The embodiment of the invention provides an image processing method and device. The objective of the invention is to solve the problem of the severe variegation phenomenon. The method comprises: performing global brightness enhancement process of the brightness component of the input image data based on a presetting algorithm, and obtaining the first image data; performing illumination filtering of the brightness component of the first image data by using bilateral filtering, and obtaining the second image data; and determining the feedback coefficient of the saturation component of the first image data, regulating the brightness component of the second image data based on the feedback coefficient, and obtaining and displaying the output image data. The generation of halation is effectively avoided.
Owner:LE SHI ZHI ZIN ELECTRONIC TECHNOLOGY (TIANJIN) LTD
Water purifier display device and control method thereof, and water purifier
InactiveCN109147717ADisplay clearImprove functionalityWater/sewage treatmentCathode-ray tube indicatorsDisplay deviceEngineering
The invention, which belongs to the technical field of water purifiers, particularly relates to a water purifier display device and a control method thereof, and a water purifier. According to the control method, a light sensor detects ambient light information received by a display panel and the light information is sent to a controller; the controller processes the light information and determines the light intensity of the display panel; and the controller changes a display drive signal and adjusts the brightness of the display panel. Therefore, the display brightness is adjusted automatically based on the light. When the ambient light is dark, the brightness of the display panel is slightly reduced, so that phenomena that the light is too bright and the halo of the display icon occursare avoided and thus the display panel carries out displaying clearly. When the ambient light is bright, the display brightness is increased. Moreover, the functions, intelligence, and humanization ofthe water purifier are enhanced; and the user experience is improved.
Owner:GREE ELECTRIC APPLIANCES INC
Downhole image processing method based on improved bilateral filtering
PendingCN110288536AIncrease contrastIncrease brightnessImage enhancementImage analysisIlluminanceImaging processing
The invention discloses a downhole image processing method based on improved bilateral filtering. According to the method, improved bilateral filtering is adopted to estimate an illumination image, an Otsu threshold segmentation method is adopted to obtain a reflection image threshold, bilateral filtering is adopted to perform denoising processing of different degrees on bright and dark areas, segmented linear transformation is adopted to enhance and suppress the bright and dark areas, and the image contrast is improved. Experimental results show that the brightness and contrast of the coal mine underground low-illumination image can be effectively enhanced, and noise can be effectively removed while underground dark region details are ensured. The problems of halo and ash flooding and noise amplification in the traditional method are avoided.
Owner:LIAONING TECHNICAL UNIVERSITY
Display device
InactiveUS20050212401A1Increase brightnessGood effectNon-rotating vibration suppressionThermionic cathodesCarbon filmDisplay device
The present invention provides an image display device in which it is possible to obtain an image display of high brightness and high contrast by preventing the halation which may be generated in a peripheral portion of a display image. By providing a carbon film which attenuates the reentry of secondary electrons, which are generated when electron beams impinge on an anode, to a back surface of the anode, even when primary electrons impinge on the anode, the secondary electrons are hardly emitted from the anode. At the same time, a trace amount of emitted secondary electrons are mainly formed of electrons having a small energy. Hence, these emitted secondary electrons are scattered and hardly reenter the anode.
Owner:PANASONIC LIQUID CRYSTAL DISPLAY CO LTD +1
Method and apparatus for improving image quality
ActiveUS20120242903A1Avoid blurLow-cost image qualityTelevision system detailsImage enhancementImaging qualityComputer science
A method of improving an image quality of a video signal, which is supplied on a frame-by-frame basis, includes extracting low frequency components from a video signal of an n-th frame, where n is a natural number excluding zero, subtracting the extracted low frequency components from a video signal of an (n+m)th frame to produce high frequency components, where no is a natural number excluding zero, and adding the produced high frequency components to the video signal of the (n+m)th frame. The extracted low frequency components include a horizontal component and a vertical component.
Owner:NEC VIEWTECH
Display device
ActiveCN111933043AImprove display qualityAvoid ghostingNon-linear opticsIdentification meansGratingDisplay device
The invention discloses a display device. The display device comprises a first display panel and a second display panel, the first display panel is arranged on the second display panel, a grating layer is arranged between the first display panel and the second display panel so as to block light rays emitted from the first display panel, and the emergent angle of the light rays is larger than a preset angle. According to the display device provided by the embodiment of the invention, the grating layer is arranged between the first display substrate and the second display substrate, so that theproblem of ghosting of the display device with a double-layer display panel during display can be avoided, meanwhile, the problem of halo caused by an existing ghosting removing mode is also avoided,and the display quality of the display device is improved.
Owner:BOE TECH GRP CO LTD +1
Camera assembly used in refrigerator body and refrigerator
InactiveCN111698394AEnsure normal lightingAvoid haloTelevision system detailsLighting and heating apparatusImaging qualityIcebox
The invention discloses a camera assembly used in a refrigerator body and a refrigerator. The box body comprises a main body which is enclosed to form an accommodating space, wherein the body is provided with an opening. The box body further comprises a door body for sealing the opening, and a transparent rack is arranged on the body. The camera assembly comprises a camera and a light supplementing lamp; in the height direction of the box body, the camera is located below the rack, and the light supplementing lamp is located above the rack. Due to the fact that the fill-in light and the cameraare matched in a staggered mode, halo generated when the fill-in light right faces the camera is avoided, and the imaging quality is improved.
Owner:QINGDAO HAIER REFRIGERATOR CO LTD +1
Fruit and vegetable visual detection system based on multispectral light source imaging
PendingCN112611717AEfficient removalImprove accuracyMaterial analysis by optical meansLight spotLED lamp
The invention discloses a fruit and vegetable visual detection system based on multispectral light source imaging, and aims to solve the problems that an existing fruit and vegetable visual detection system is limited by fruit and vegetable shapes and surface color saturation changes of the existing fruit and vegetable visual detection system, and high-brightness light spots are easily formed on the surfaces of fruits and vegetables to be detected; and image acquisition and subsequent analysis and detection results are influenced. The detection system comprises two LED lamp sets which are arranged in a bilateral symmetry mode and used for lighting the positions of fruits and vegetables to be detected, and light reflecting plates used for refracting light to the positions of the fruits and vegetables to be detected are arranged in the light irradiation direction of the LED lamp sets. A color camera and an infrared camera which are used for performing surface imaging on the to-be-detected fruits and vegetables are arranged above the to-be-detected fruits and vegetables in parallel; and according to the detection system, visual detection is carried out on the surfaces of fruits and vegetables through multispectral lamp source imaging, halo generated by direct light is avoided, and therefore the accuracy of information collection and subsequent analysis and detection results is improved, and high-precision visual detection is achieved.
Owner:JIANGXI REEMOON TECH HLDG
Image inspection device and image inspection method using the image inspection device
InactiveUS7569822B2Avoid haloRadiation pyrometryMaterial analysis by optical meansImage InspectionSemiconductor
Owner:MITSUBISHI ELECTRIC CORP
(Dope-Dyed) Polyester Monofilament
InactiveUS20090324948A1Good dimensional stabilityAvoid haloConfectionerySweetmeatsPolyesterPolymer science
[PROBLEMS] To provide a polyester monofilament which shows a high dimensional stability and excellent effects of preventing peel-off in filaments, preventing pirn barre and preventing halation and has a high fineness, a high strength and a high modulus. [MEANS FOR SOLVING PROBLEMS] A core-shell type composite polyester monofilament comprising polyethylene terephthalate at a ratio of 80% by mol or higher, which satisfies the following requirements A to F: A) the intrinsic viscosity of the core component being 0.70 or above and the intrinsic viscosity of the shell component being from 0.55 to 0.60; B) the core component amounting to 50 to 70%; C) at least the shell component containing from 0.2 to 0.4% by weight of metal microparticles; D) the fineness of the monofilament being from 5 to 15 dtex, its modulus at elongation of 5% being from 3 to 4.5 cN / dtex and its elongation at break being from 20 to 40%; E) the free shrinkage of the innermost part under specific conditions being 0.3% or less; and F) the node density is one per 100,000 m or less.
Owner:TEJIN FIBERS LTD
Cylinder bore inner surface inspection method and inspection device
PendingCN113125466AAvoid haloAccurate checkOptically investigating flaws/contaminationUsing optical meansEngineeringMechanical engineering
The invention provides a method and a device for inspecting the inner surface of a cylinder hole, which can accurately inspect damage on intersection lines of the inner surface of the cylinder hole without depending on human eyes. A light source (24) located at a position outside an opening surface of a cylinder hole (B) of an engine (E) irradiates light toward the inside of the cylinder hole (B), and a camera (23) outside the opening surface of the cylinder hole captures an image of reflected light from the inner surface of the cylinder hole and reflected on a mirror (25) inserted into the cylinder hole. The light source (24) and the mirror (25) are rotated in the circumferential direction of the cylinder bore and moved in the axial direction of the cylinder bore, thereby inspecting damage occurring on the intersecting line of the inner surface of the cylinder bore.
Owner:TOYOTA JIDOSHA KK +1
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