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200results about How to "Reduce image quality degradation" patented technology
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Image processing apparatus, image processing method, and computer product
InactiveUS20050018258A1Reduce image quality degradationImage enhancementDigitally marking record carriersImaging processingImaging quality
An image processing apparatus includes an input unit that inputs an image signal created by optically scanning a document, a first filtering unit that performs a first filtering process on the image signal input to reduce degradation of image quality caused by optical scanning of the document, a compressing unit that irreversibly compresses the image signal filtered, a storage unit that stores the image signal compressed, an expanding unit that expands compressed image signal stored in the storage unit; and a second filtering unit that performs a second filtering process on the image signal expanded to reduce degradation image quality caused by compression of the image signal.
Owner:RICOH KK
Image processing apparatus, image processing method, and imaging apparatus
ActiveUS20150043808A1Reduce image deteriorationReduce image quality degradationImage enhancementImage analysisImaging processingImaging equipment
An image processing apparatus comprising: an image acquisition unit configured to acquire an image; a depth map acquisition unit configured to acquire a depth map corresponding to the image; a refinement unit configured to detect a saliency region from the image and to refine the depth map on the basis of the saliency region, the saliency region being a region on which a person tends to focus; and an image processing unit configured to apply image processing to the image using the depth map refined by the refinement unit.
Owner:CANON KK
Image pickup apparatus and lens barrel
ActiveUS20080204565A1Reduce image quality degradationQuality improvementTelevision system detailsPrintersFace detectionObject based
An imaging apparatus capable of preventing photographing sensitivity from being increased more than necessary, reducing image quality degradation caused by camera shake or object shake and easily photographing images in good image quality. Digital camera 1 includes image shake correcting selection 16 that corrects shake of an optical image of a photographing object formed by the imaging optical system L, digital signal amplification section 110 that amplifies an image signal with a gain set by digital signal gain setting section 111, face detection section 120 that detects a face of a fast-moving specific photographing object such as a child or pet, and motion detection section 100 that detects motion of the face of the specific photographing object based on an output of face detection section 120, wherein when a fast-moving specific photographing object such as a child or pet or the face of the specific photographing object is detected, microcomputer 3 increases the gain of a photographing sensitivity changing function compared with when no specific photographing object such as a child or pet is detected, increases ISO sensitivity, increases a shutter speed and shortens exposure time.
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
Video-encoding and video-encoding control method
InactiveUS20060050778A1Good effect of achievingSeamless connectionTelevision system detailsPicture reproducers using cathode ray tubesAlgorithmObject code
Owner:SONY CORP
Video-encoding device and video-encoding control method
InactiveUS7835436B2Seamless connectionReduce image quality degradationTelevision system detailsPicture reproducers using cathode ray tubesAlgorithmObject code
Owner:SONY CORP
Liquid crystal display device
ActiveUS20090237602A1Reduce image quality degradationImproved design aestheticLiquid crystal compositionsThin material handlingLiquid-crystal displayPolarizer
A face plate on which a frame is formed for improved design aesthetics is bonded to a top surface of an upper polarizer of a liquid crystal display panel with a pressure-sensitive adhesive material. The frame on the face plate is formed from five layers of printing. The pressure-sensitive adhesive material has a three-layer structure having a first pressure-sensitive adhesive member, a base material, and a second pressure-sensitive adhesive member. The first pressure-sensitive adhesive member is formed thicker than the second pressure-sensitive adhesive member, and hence the pressure-sensitive adhesive material can maintain a necessary thickness above the frame formed on the face plate. The reliability of adhesion between the face plate and the liquid crystal display panel is thus improved.
Owner:PANASONIC LIQUID CRYSTAL DISPLAY CO LTD +1
Method of correcting image distortion and apparatus for processing image using the method
InactiveUS8000559B2Reduce image quality degradationOvercome disadvantagesTelevision system detailsTelevision system scanning detailsImaging processingDistortion
A method of correcting image distortion and an apparatus for processing an image using the method are provided, where the method can overcome the disadvantages of the conventional methods of correcting lens distortion and can minimize image quality degradation at outer portions,. The method includes: receiving an image from a wide-angle lens; extracting a distortion coefficient of the distortion in the image caused by the wide-angle lens; correcting the distortion of the image by using the extracted distortion coefficient; and displaying a corrected image. The apparatus includes: a wide-angle lens for receiving an image; an image processing unit comprising a distortion coefficient extracting unit for extracting a distortion coefficient of distortion in the image caused by the wide-angle lens and a distortion correcting unit for correcting the distortion of the image using the extracted distortion coefficient; and a display unit for displaying a corrected image.
Owner:CORELOGIC
Image pickup apparatus and lens barrel
InactiveUS20080204564A1Quality improvementReduce image quality degradationTelevision system detailsPrintersFace detectionImaging equipment
An imaging apparatus capable of preventing photographing sensitivity from being increased more than necessary, reducing image quality degradation caused by camera shake or object shake and easily photographing images in good image quality. Digital camera 1 includes image shake correcting selection 16 that corrects shake of an optical image of a photographing object formed by an imaging optical system L, digital signal amplification section 110 that amplifies an image signal with a gain set by digital signal gain setting section 111, and face detection section 120 that detects a face of a photographing object, and microcomputer 3 calculates an object speed based on the detected motion of the face of the photographing object, decides whether or not the object speed is equal to or higher than a threshold A, and operates, when the object speed is lower than the threshold A, image shake correction by controlling image shake correcting section 16 or increases, when the object speed is equal to or higher than the threshold A, the gain of digital signal gain setting section 111, increases ISO sensitivity to increase the shutter speed and shorten the exposure time.
Owner:PANASONIC CORP
Image-forming apparatus and image-forming method
InactiveUS6934484B2Avoid damageSuppress image deteriorationElectrographic process apparatusTemperature controlElectrical conductor
In a copier which is an image-forming apparatus comprising a photoconductor 1, a developing apparatus 4, transfer apparatus 5 which transfers a toner image formed on the photoconductor 1 to a transfer material by heat and pressure using a transfer roller 52, and a fixing apparatus which fixes the toner image transferred to the transfer material, on the transfer material, a heater 56, temperature detection apparatus 57 and temperature control apparatus are provided which controls the temperature to within a range of from the glass transition temperature (Tg) to the softening temperature (Tm) of the toner, and lower than the fixing temperature of the fixing apparatus 7.
Owner:RICOH KK
Driver device for liquid crystal display, computer program and storage medium, and liquid crystal display
ActiveUS20060017678A1Lack of image qualityMaintain contrastStatic indicating devicesNon-linear opticsLevel dataLevel converter
There is provided a motion-adaptive grayscale level converter section between a video signal source and a pixel array. The pixel array includes a liquid crystal cell of normally black and vertically aligned mode. The motion-adaptive grayscale level converter section determines based on information from a decoder section whether the pixels of an image represented by a video signal is in a moving image area. If a pixel is in a moving image area, the motion-adaptive grayscale level converter section changes the grayscale level data representing the grayscale level of the pixel so that there is no darker grayscale level than a predetermined first grayscale level. The resultant data is output as a video signal. Accordingly, we can provide a liquid crystal display capable of easing image quality degradation due to insufficient response when displaying a moving image while maintaining the contrast ratio achieved for a still image display.
Owner:SHARP KK
Method of correcting image distortion and apparatus for processing image using the method
InactiveUS20090059041A1Remove jagged-edge artifactMinimize blurringTelevision system detailsTelevision system scanning detailsImaging processingComputer science
A method of correcting image distortion and an apparatus for processing an image using the method are provided, where the method can overcome the disadvantages of the conventional methods of correcting lens distortion and can minimize image quality degradation at outer portions,. The method includes: receiving an image from a wide-angle lens; extracting a distortion coefficient of the distortion in the image caused by the wide-angle lens; correcting the distortion of the image by using the extracted distortion coefficient; and displaying a corrected image. The apparatus includes: a wide-angle lens for receiving an image; an image processing unit comprising a distortion coefficient extracting unit for extracting a distortion coefficient of distortion in the image caused by the wide-angle lens and a distortion correcting unit for correcting the distortion of the image using the extracted distortion coefficient; and a display unit for displaying a corrected image.
Owner:CORELOGIC
Display device and terminal unit using the same
ActiveUS20090168167A1Eliminate the effects ofReduce image quality degradationSteroscopic systemsNon-linear opticsImaging qualityDisplay device
A display device reduces the image quality degradations by suppressing the effect of the defective alignment regions caused by the spacers while minimizing the aperture ratio lowering, and prevents the image quality change dependent on the observation positions. The display device has a display panel and a lenticular lens. Each unit pixel of the display panel includes the sub-pixel for the left eye and the sub-pixel for the right eye. To keep the pair of substrates at a predetermined gap, spacers are arranged at predetermined positions in the gap. The spacers are stripe-shaped and extended along a direction perpendicular to the image separation axis of the lenticular lens. The spacers are equally overlapped with the sub-pixels for the left eye and those for the right eye. The spacers may be isolated for the respective unit pixels, or the first or second sub-pixels.
Owner:NEC LCD TECH CORP
Projector and method of correcting projected image distortion
ActiveUS20050078282A1Improve installation freedomReduce image quality degradationTelevision system detailsTelevision system scanning detailsOptical axisProjection image
A projector has a distortion correcting circuit for correcting a distorted quadrangular projected image, which is projected onto a projection surface along a projection optical axis inclined in at least one of leftward, rightward, upward, and downward directions, into a rectangular corrected image, such that one of the vertexes B, D on the opposite ends of either one of two diagonal lines of the rectangular corrected image is positioned on one side La of the outer edge of a projection range of the projected image and the other vertex on another side Lb that is positioned adjacent to the one side La.
Owner:SHARP NEC DISPLAY SOLUTIONS LTD
High quality halftone process
InactiveUS20080259361A1Improve image qualityReduce image quality degradationDigitally marking record carriersDigital computer detailsComputer graphics (images)Error diffusion
The invention provides a printing method of printing on a printing medium. The method includes: generating dot data that represents state of dot formation at each print pixel of a print image to be formed on the printing medium by performing a halftone process on image data that represents an input tone value of each pixel making up an original image; providing a print head capable of selectively forming N types of dots having mutually different sizes on a region of one pixel on the printing medium, N being an integer of at least 2; and generating the print image according to the dot data by mutually combining a plurality of dot groups in a common print region, each of the plurality of dot groups being formed on each of a plurality of pixel groups that assume mutually physical differences in a process of dot formation. The generating dot data includes: executing the halftone process by using an error diffusion method with respect to smaller-size-side dot among the N types of dots; and executing the halftone process by using a dither method with respect to larger-size-side dot among the N types of dots, a condition of halftone process of the dither method being set such that all of the dot groups have a first predetermined characteristic.
Owner:SEIKO EPSON CORP
Image stabilizing system and optical apparatus
ActiveUS20080069552A1Focusing precision is improvedImprove accuracyPrintersProjectorsOptical axisComputer science
An image stabilizing system performs rotational-shake correction to increase focus precision so that shift shake correction can be performed with high precision based on highly accurate image magnification information obtained by the high focus precision. The image stabilizing system includes a rotational-shake detecting unit that detects rotational shake occurring around a shooting light axis of an optical apparatus; a parallel-shake detecting unit that detects parallel shake occurring within a plane orthogonal to the light axis; a shake correcting unit that reduces image deterioration caused by the rotational shake and parallel shake; and an image stabilizing unit that actuates the shake correcting unit at an initial stage of a shake correcting process based on an output signal from the rotational-shake detecting unit, and actuates the shake correcting unit at a subsequent stage of the shake correcting process based on output signals from the rotational-shake detecting unit and the parallel-shake detecting unit.
Owner:CANON KK
Apparatus and method for performing dynamic capacitance compensation (DCC) in liquid crystal display (LCD)
ActiveUS20060098879A1Minimizing chip sizeReducing picture-quality deteriorationCharacter and pattern recognitionCathode-ray tube indicatorsCapacitanceLiquid-crystal display
There are provided an apparatus and method for performing dynamic capacitance compensation (DCC) in a liquid crystal display (LCD). The DCC apparatus includes: a first line buffer reading and temporarily storing pixel values of an image for each line; an encoder transforming and quantizing the pixel values stored for each line for each block and generating bit streams; a memory storing the generated bit streams; a decoder decoding the bit streams stored in the memory for the each block and outputting the decoded bit streams; a second line buffer reading and temporarily storing the decoded pixel values for the each block; and a compensation pixel value detector detecting a compensation pixel value for each pixel, from pixel value differences between pixel values of a current frame stored in the first line buffer and pixel values of a previous frame stored in the second line buffer. Therefore, it is possible to reduce the number of pins of a memory interface by reducing the number of memory device for storing pixel values of image data, required for performing DCC of a LCD, resulting in minimizing a chip size, and to enhance compression efficiency without visual deterioration in images.
Owner:SAMSUNG ELECTRONICS CO LTD
Image-pickup device, image-pickup method, and program
InactiveUS20070103562A1Increase incidenceIncrease probabilityTelevision system detailsPrintersExposure Elapsed TimeComputer science
An image-pickup device including an image-pickup element converting an optical image of a subject into an electrical signal is provided. The image-pickup device includes a detection unit which detects brightness of the subject, a first determination unit determining an exposure-time period on the basis of the detected brightness, a second determination unit determining a divided-time period used for dividing the exposure-time period into a plurality of sections, an image-pickup-timing-control unit which divides the exposure-time period by the divided-time period, exposes the image-pickup element a plurality of times, and generates a plurality of time-division-image data items, and a combining unit which generates still-image data by combining the generated time-division-image data items with each other.
Owner:SONY CORP
Image forming apparatus
InactiveUS20110298884A1Reduce image quality degradationRecording apparatusElectrographic process apparatusLatent imageLight beam
An image forming apparatus capable of reducing density variation that occurs in an output image when the rotational speed of a polygon mirror is changed. A light source emits a light beam for forming an electrostatic latent image on a photosensitive drum. The polygon mirror deflects the light beam such that the light beam moves on the photosensitive drum in a predetermined direction. A polygon mirror control circuit controls the polygon mirror such that when the toner image is to be formed at a first magnification, the rotational speed of the polygon mirror is made higher than when the toner image is to be formed at a second magnification that is larger than the first magnification. When the toner image is to be formed at the first magnification, the light beam becomes smaller in light amount than when the toner image is to be formed at the second magnification.
Owner:CANON KK
Sheet conveying apparatus, printing apparatus, and processing apparatus
InactiveUS8807556B2Reduce image quality degradationQuality improvementFunction indicatorsArticle separationImaging qualityEngineering
Even in printing apparatus that make use of a plurality of kinds of sheets, the degradation of image quality is reduced. A sheet conveying apparatus includes: a sheet stacking unit; a sheet conveying unit being in contact with the sheet stacked on an uppermost portion, of the stacked sheets, and conveying the sheet; a separation unit separating the sheets into only one sheet of the uppermost portion by a separation slope that abuts a tip portion of the sheet conveyed by the sheet conveying unit; and a guide unit connected to the separation unit and guiding the sheet, in which an angle between the sheet stacking unit and the separation slope is switched to a first angle and a second angle smaller than the first angle by a rotation center of the separation unit provided in a vicinity of a connection portion of the separation unit and the guide unit.
Owner:CANON KK
Imaging apparatus
InactiveUS20070188634A1Reduce image deteriorationReduce image quality degradationTelevision system detailsColor television detailsImage compressionProcessing element
An imaging apparatus includes an imaging unit configured to image an object, a gain adjustment unit configured to adjust a gain for an image signal output from the imaging unit, a signal processing unit configured to process the image signal, the signal processing unit including a first noise reduction unit to reduce a particular noise included in the image signal, an image compression unit configured to compress an image signal output from the signal processing unit, the image compression unit including a second noise reduction unit to reduce the particular noise included in the image signal output from the signal processing unit, and a control unit configured to set one of the first and second noise reduction units into an operative state and another unit into an inoperative state according to a gain adjustment by the gain adjustment unit.
Owner:CANON KK
Image processing apparatus, image processing method, image processing program, and image pickup apparatus
InactiveUS20130308005A1Decrease image quality deteriorationReduce errorsTelevision system detailsImage enhancementInformation acquisitionImaging processing
An image processing apparatus that acquires a focusing distance from a plurality of images each having different degrees of blur, comprises a misalignment detection unit that detects misalignment among the plurality of images; a distance information acquisition unit that acquires, based on the plurality of images, distance information, which is information to indicate a focusing distance in an area of the images; and a reliability information acquisition unit that creates, based on the detected misalignment, reliability information, which is information to indicate reliability of the focusing distance acquired for each area, wherein the distance information acquisition unit changes the acquired distance information based on the reliability information.
Owner:CANON KK
Image-forming apparatus and image-forming method
InactiveUS20040076443A1Prevent image deteriorationImage deteriorationElectrographic process apparatusElectrical conductorTemperature control
In a copier which is an image-forming apparatus comprising a photoconductor 1, a developing apparatus 4, transfer apparatus 5 which transfers a toner image formed on the photoconductor 1 to a transfer material by heat and pressure using a transfer roller 52, and a fixing apparatus which fixes the toner image transferred to the transfer material, on the transfer material, a heater 56, temperature detection apparatus 57 and temperature control apparatus are provided which controls the temperature to within a range of from the glass transition temperature (Tg) to the softening temperature (Tm) of the toner, and lower than the fixing temperature of the fixing apparatus 7.
Owner:RICOH KK
Object information acquiring apparatus and control method for same
InactiveUS20140100438A1Reduce image deteriorationReduce image quality degradationDiagnostic recording/measuringSensorsSignal onAcoustic wave
An object information acquiring apparatus, including: a probe converting an acoustic wave generated from an object irradiated with light into a detection signal; and a signal processing unit generating information about the object from the detection signal, wherein the signal processing unit: extracts a sampling signal on the basis of conditions relating to the signal shape; generates a reference signal from the sampling signal; detects a phase-inverted signal, which is a portion of the detection signal where the phase is inverted with respect to the reference signal, by carrying out a correlation calculation; generates a signal after suppression by suppressing the intensity of the phase-inverted signal from the detection signal; and generates information about the interior of the object using the signal after suppression.
Owner:CANON KK
Imaging apparatus
ActiveUS20060251414A1Eliminate thermal expansion anisotropyReduce anisotropyTelevision system detailsSolid-state devicesImaging qualityLength wave
The imaging apparatus 1 comprises: a semiconductor imaging device 5 which converts incident light to an electrical signal; an optical filter 4 which is opposed to an incident surface of the semiconductor imaging device 5 and transmits light of a certain wavelength; and a three-dimensional substrate 2 fixing the optical filter 4 by means of adhesion using a filler-containing adhesive 6; wherein the diameter of the filler is smaller than or equal to the pixel size of the semiconductor imaging device 5. Degradation of image quality of the imaging apparatus 1 caused by the dropped filler can thus be reduced.
Owner:PANASONIC CORP
Image processing method, image processing apparatus, program and recording medium that can reduce image quality degradation
InactiveUS20050180596A1Reduce image quality degradationKey distribution for secure communicationDigital data processing detailsImaging processingComputer graphics (images)
An image processing method includes the steps of: dividing digital content into run-lengths each including one or more consecutive pixels having an identical color; and embedding digital watermark information in the run-lengths while saving topology (first topology preservation law).
Owner:RICOH KK
Image pickup apparatus and image conversion method
InactiveUS20100271496A1Reduce image quality degradationTelevision system detailsCharacter and pattern recognitionCamera lensImaging quality
To reduce degradation of image quality occurring upon correction of an image shake, provided is an image pickup apparatus including: an image pickup optical system; an image pickup element for photoelectrically converting an image formed by the image pickup optical system; a processing unit for processing a taken image; a detection unit for detecting a shake of the image pickup apparatus; and an image stabilizing unit for decentering an image stabilizing lens unit formed as a part of the image pickup optical system based on a detection result from the detection unit. The processing unit performs the process by using an image restore filter corresponding to a position of the image stabilizing lens unit at a time of image taking.
Owner:CANON KK
Imaging apparatus capable of reducing deterioration of an image even when the gain increased
InactiveUS7932935B2Reduce image quality degradationTelevision system detailsColor television detailsComputer hardwareImage compression
Owner:CANON KK
Organic light-emitting diode display panel, display module and electronic equipment
InactiveCN109697396AReduce image quality degradationReduce light lossSolid-state devicesPrint image acquisitionImaging qualityTransmittance
The invention relates to the technical field of display, in particular to an organic light-emitting diode display panel, a display module and electronic equipment. An effective display area of the organic light-emitting diode display panel comprises at least one fingerprint identification area, the fingerprint identification area is used for enabling light received by an optical fingerprint sensorto pass through, and the light transmittance of the at least one fingerprint identification area is larger than that of other areas in the effective display area. Each fingerprint identification areacan be arranged corresponding to one or more optical fingerprint sensors in specific implementation. Due to the fact that the light transmittance of the fingerprint identification area is larger thanthat of other areas in the effective display area, light loss caused when light penetrates through the fingerprint identification area can be reduced, and the problem that the imaging quality of theoptical fingerprint sensor is reduced due to light loss can be solved.
Owner:HUAWEI DEVICE CO LTD
Subject information acquiring device and subject information acquiring method
InactiveUS20130245420A1Reduce image quality degradationDiagnostic signal processingSensorsInformation gainAcoustic wave
A subject information acquiring device which has: an light absorbing member provided outside a subject; a light source radiating pulsed light on the subject and the light absorbing member; a detector detecting an acoustic wave produced from the subject and the light absorbing member by means of the pulsed light; and a signal processing unit acquiring subject information using a detection signal, and the signal processing unit calculates a second detection signal by specifying a signal resulting from an acoustic wave produced from the light absorbing member in a first detection signal, acquiring impulse response data using the specified signal, and deconvoluting the first detection signal using the impulse response data, and acquires the subject information using the second detection signal, can reduce image deterioration due to probe characteristics even when an impulse response of a probe is not measured in advance in a photoacoustic tomography.
Owner:CANON KK
Liquid crystal display device
ActiveUS8018558B2Prevent deterioration of displayed imageSimple designLiquid crystal compositionsThin material handlingLiquid-crystal displayEngineering
A face plate on which a frame is formed for improved design aesthetics is bonded to a top surface of an upper polarizer of a liquid crystal display panel with a pressure-sensitive adhesive material. The frame on the face plate is formed from five layers of printing. The pressure-sensitive adhesive material has a three-layer structure having a first pressure-sensitive adhesive member, a base material, and a second pressure-sensitive adhesive member. The first pressure-sensitive adhesive member is formed thicker than the second pressure-sensitive adhesive member, and hence the pressure-sensitive adhesive material can maintain a necessary thickness above the frame formed on the face plate. The reliability of adhesion between the face plate and the liquid crystal display panel is thus improved.
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA +1
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