СПИСОК патентов США - подгруппа МПК16 H04N5/202


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2017

19602792Display device and operation method thereof and image display system
29600906Information processing apparatus, information processing method, program, and image display apparatus
39552778Digital device and method for controlling the same

2016

49520077Four color converter, display apparatus and method for converting three color data to four color data
59508117Image processing system and method for calculating transformation parameters to register a first image to a second image
69478174Artifact mitigation for composite primary color transition
79478161Image display system and method of driving the same
89462246Transmission apparatus, method of transmitting image data in high dynamic range, reception apparatus, method of receiving image data in high dynamic range, and program
99451292Method and system for backward compatible, extended dynamic range encoding of video
109449373Modifying appearance of lines on a display system
119432647Adaptive auto exposure and dynamic range compensation
129432554Methods and systems for displays with chromatic correction having differing chromatic ranges
139413974Information processing apparatus, image sensing apparatus, control method, and recording medium for conversion processing
149412165NB-cam module calibration method and system using the same
159390678Image display method and device
169384536Image file generation device and image file display device
179355472Device, method, and graphical user interface for adjusting the appearance of a control
189350905Image signal processing apparatus, image signal processing method, and image capturing apparatus
199349173Image processor and image processing method
209336703Pixel array structure and display apparatus including the same
219336581Method for correcting gradations and device or method for determining threshold of epsilon filter
229323103Liquid crystal display device
239319647Image processing device
249305374Device, method, and graphical user interface for adjusting the appearance of a control
259294685Image processing apparatus, electronic camera, and medium storing image processing program
269282223Curved display apparatus and gamma correction method thereof
279275609Display device with programmable gamma unit
289270961Color shading correction using color channel consistency
299270888Image processing apparatus and control method thereof
309257093Image display apparatus and image adjusting method
319253374Image processing apparatus and method for controlling the same for obtaining and applying gamma characteristics to reduce a difference between light and dark areas of an image
329230346Programmable gamma circuit for gamma correction

2015

339204035Device and method for capturing images using depth-of-field
349190016Color-matching tool for virtual painting
359190014Data transmission using out-of-gamut color coordinates
369185268Methods and systems for displays with chromatic correction with differing chromatic ranges
379177499Method and system for prediction of gamma characteristics for a display
389161025Extended overdrive tables and use
399160918Focus control apparatus and method for performing focus control by phase difference detection, and image capturing apparatus
409147378Color selection interface
419135888System and method for converting an image to an intensity based colormap
429124817Projector and control method used for the same
439123150Image processing apparatus, color adjustment system, and non-transitory computer readable medium
449106877Video signal processing apparatus performing gamma correction by cubic interpolation computation, and method thereof
459105122Image processing apparatus and image processing method
469098921Image processor and image processing method
479058760Adjusting method and display apparatus using same
489024961Color grading apparatus and methods
499020998Efficient computation of driving signals for devices with non-linear response curves
509019407Image processing apparatus and image processing method
519019406Imaging apparatus and image processing program for correcting dark area gradation
529019294Color processing apparatus and method thereof
539013503Image-data-converting device and display device including the same
549007392Method for enhancing contrast of color image displayed on display system and image processing system utilizing the same
559001141Method and apparatus for providing independent gamut remapping for multiple screen subsections
568988452Color enhancement via gamut expansion
578982251Image processing apparatus, image processing method, photographic imaging apparatus, and recording device recording image processing program
588963945System and method for generating RGB primary for wide gamut, and color encoding system using RGB primary
598963941Image display apparatus and image display method
608958658Image tone adjustment using local tone curve computation
618937631Image processing circuit and image display apparatus
628928775Apparatus and method for processing image by using characteristic of light source

2014

638913164Image processor, electronic device including image processor, and image processing method for performing stepped tone correction on images
648908990Image processing apparatus, image processing method, and computer readable medium for correcting a luminance value of a pixel for reducing image fog
658896737Imaging apparatus with element that selectively transfers charge accumulated in first semiconductor region of accumulating element to floating diffusion region and method
668896619Apparatus, method and computer-readable storage medium for compensating for image-quality discrepancies
678890901Color management circuit and related method
688866942Auto focus adjusting device and method and recording medium of the same method
698861887Image processing apparatus, image processing method, and camera module with shading correction
708860751Method for producing a color image and imaging device employing same
718854512Process, apparatus and computer program for enhancing detail visibility in an input
728848004Method of calculating correction value and display device
738842141Method of uniform distribution for increasing display rate
748831345Image processing method, image processing apparatus, and image processing program
758817039Image processing device and image processing method
768803922Methods and apparatuses for increasing the apparent brightness of a display
778797443Method for checking camera
788797346Gamma correction system and method for display device
798781249Image processing apparatus and image processing method
808780273Signal processing apparatus, signal processing method, and program
818743289Image display apparatus and image display method
828743234Video gamma correction
838736723Image processing system, method and program, including a correction coefficient calculation section for gradation correction
848730329Automatic adaptive image sharpening
858723880White balance method for display image
868717474Imaging apparatus and method for driving the same
878711255Visual processing apparatus and visual processing method
888711168Digital display devices and digital projectors with expanded color gamut
898687096Adapted piecewise linear processing drive
908670050Image processing device and method for determining similarities between two images
918665351Image processing device, electronic camera, and storage medium storing image processing program
928654221Image processing device and method, and program
938633950Image display device
948625008Image processing apparatus having luminance-type gamma correction circuit capable of changing nonlinear characteristic, and image processing method therefor

2013

958614719Method for gamma correction and a device having gamma correction capabilities
968605121Dynamic Gamma correction circuit and panel display device
978587690Apparatus and method for processing image by using characteristic of light source
988576310Image processing apparatus, camera module, and image processing method
998570407Imaging apparatus, image processing program, image processing apparatus, and image processing method
1008558927Image processing apparatus having a gradation conversion unit that executes gradation conversion processing, and image processing method for the same
1018542302Digital photographing apparatus, method of controlling the digital photographing apparatus, and recording medium storing program to implement the method
1028542244System and method to generate multiprimary signals
1038537171Piecewise non-causal compression and subsequent decompression of quantized data for processing of decompressed data in higher precision processing space
1048520973Method for restoring transport error included in image and apparatus thereof
1058520020Stereoscopic color management
1068497943Display driving circuit
1078493480Image capturing method and apparatus for efficiently processing a digital image
1088488029Imaging apparatus, imaging method, integrated circuit, and storage medium
1098478066Image-correction method and image pickup apparatus
1108477198Interaction control system, method for detecting motion of object, host apparatus and control method thereof
1118471934Computer readable storage medium, image correction apparatus, and image correction method
1128462274Systems and methods for mitigating visible envelope effects
1138452122Device, method, and computer-readable medium for image restoration
1148451383Image display device, image display method, and image processing device
1158432413System and method for the display of extended bit depth high resolution images
1168428390Generating sharp images, panoramas, and videos from motion-blurred videos
1178422081Image forming apparatus and image forming method capable of revising gray image
1188421866Image monitoring system and image monitoring program
1198421814Display device and method of driving the same
1208416259Image display apparatus and image display method
1218411992Image processing device and associated methodology of processing gradation noise
1228411987Method and apparatus for contrast enhancement
1238406563Photometric calibration method and device
1248405768Moving image processing apparatus and method thereof
1258400536Image processing method and image processing apparatus
1268396319Separation and contrast enhancement of overlapping cast shadow components and target detection in shadow using polarization
1278390644Methods and apparatus for color uniformity
1288390638Image compensation methods, systems, and apparatuses for organic light emitting diode display panel
1298379149Display apparatus and control method thereof
1308379039Reformatting content with proper color-region conversion
1318373721Method of realism assessment of an image composite
1328373718Method and system for color enhancement with color volume adjustment and variable shift along luminance axis
1338363168Signal processing apparatus and signal processing method performing gamma correction
1348363125Image processing apparatus, image processing method, and computer program product
1358358351Automatic tone mapping for cameras

2012

1368339518Video signal processing method and apparatus using histogram
1378339485Apparatus, method and computer readable storage medium outputting a processed signal having corrected gamma values to a location based on a user indication
1388334914Gradation correcting apparatus, and recording medium storing a program recorded therein
1398334912Image processing apparatus, imaging apparatus, image processing method, and computer readable recording medium storing image processing program
1408334884Method of calculating correction value and display device
1418325246Imaging apparatus and imaging method capable of imaging at a low frame rate
1428319864Imaging apparatus and imaging method
1438310571Color shading correction device, color shading correction method, and color shading correction program
1448310562Imaging control apparatus, imaging apparatus and imaging control method for compressing the dynamic range of image data
1458305470Imaging device, setting-value changing method, and computer program product
1468300977Imaging device and image processing program for estimating fixed pattern noise from partial noise output of available pixel area
1478294795Image capturing apparatus and medium storing image processing program
1488290293Image compensation in regions of low image contrast
1498290263Image processing apparatus
1508289344Methods and apparatus for color uniformity
1518279351Method and apparatus for hardware-efficient continuous gamma curve adjustment
1528279235Color correction method and color correcting integrated chip
1538279234Method and system of generating gamma data of display device
1548274526Method, apparatus and system for visual gamma correction of displays
1558274525Converting color primaries and luminances of an input signalt to different color primaries and luminances for a display
1568269787Methods and apparatus for color grading with gamut match preview
1578264613Methods and systems for correcting streaming video signals
1588253756Circuit for performing dithering on pixels of a display and method thereof
1598248494Image dynamic range compression method, apparatus, and digital camera
1608248493Video signal processing apparatus performing gamma correction by cubic interpolation computation, and method thereof
1618248431Image processing apparatus, image processing method, program, and recording medium
1628243154Image processing apparatus, digital camera, and recording medium
1638213063Image sensing apparatus, image sensing system, and operating program product for image sensing system
1648208045Method and system for reducing noise in image data
1658199228Method of and apparatus for correcting contour of grayscale image
1668194286Image forming apparatus and image forming method capable of revising gray image
1678194160Image gradation processing apparatus and recording
1688194094Image display apparatus and driving method thereof, and image display apparatus assembly and driving method thereof
1698194092Device and method of processing image for power consumption reduction
1708189013Video signal processing device and method of processing gradation
1718184924Image processing apparatus and image processing program
1728184123Image display apparatus, image processing apparatus, and image display method
1738174622Data processing method and data processing device for histogram-based nonlinear conversion
1748174537System and method for adaptive color space conversion
1758165419Histogram stretching apparatus and histogram stretching method for enhancing contrast of image
1768164692Gamma correction circuit, gamma correction method, and image processing apparatus
1778159571Method of generating HDR image and digital image pickup device using the same
1788159500Methods and apparatus for color grading with gamut match preview
1798154563Color conversion method and apparatus for display device
1808149244Projection system, information processing apparatus and projector
1818144168Image display apparatus and image display method
1828144163Driving device and driving method of the same
1838139856Image processing apparatus, imaging apparatus, and computer readable medium irregularizing pixel signals continuous in level near a saturation level
1848139080User interface color scheme customization systems and methods
1858125569Dynamic contrast on displays using average picture level and histogram analysis
1868121404Exposure control apparatus and image pickup apparatus
1878115836Image reproducing apparatus
1888111333Video bit-stream gamma-correction method and a multipoint control unit
1898106977Image capturing system and image processing method for applying grayscale conversion to a video signal, and computer-readable recording medium having recorded thereon an image processing program for applying grayscale conversion to a video signal
1908106961Image processing method, apparatus and computer program product, and imaging apparatus, method and computer program product
1918102446Image capturing system and image processing method for applying grayscale conversion to a video signal, and computer-readable recording medium having recorded thereon an image processing program for applying grayscale conversion to a video signal
1928098335Nonlinear processing device and image display apparatus
1938094238Video signal processing device and video signal processing method
1948089561Gamma correction apparatus
1958089560Image processing apparatus, image processing method and program
1968089530Solid-state image pickup apparatus, drive method for the solid-state image pickup apparatus, and image pickup apparatus

2011

1978085323Image processing apparatus, image processing method and image pickup apparatus
1988081831Image processor performing a high precision retinex process
1998081239Image processing apparatus and image processing method
2008077261Digital gamma correction circuit and digital gamma correction method
2018077229Image parameter correction for picked-up image and simulated image
2028072516Dynamic range enhancement method and apparatus
2038049765Color gamut mapping and liquid crystal display device using the same
2048040411Image pickup device and image pickup method
2058040410Imaging apparatus
2068040409Image processing device capable of performing retinex process at high speed
2078035749Gamma-correction circuit for graphic signals
2088031202Color transfer between images through color palette adaptation
2098018513Adapted piecewise linear processing device
2108009177User interfaces for managing image colors
2117999822Color processing apparatus and method thereof
2127995135Image capturing apparatus for adjusting an exposure value that is set lower than the correct exposure value
2137995120Image brightness compensating apparatus and method, recorded medium recorded the program performing it
2147990443Image sensing apparatus and image processing method
2157990392White balancing that uses values of white-balanced colors on the visible gamut's boundary
2167986356System and method for determining a gamma curve of a display device
2177986355Picture displaying method, picture displaying apparatus, and imaging apparatus
2187978203Methods and apparatus for color grading with gamut match preview
2197969448Apparatus and method of converting image signal for six color display device, and six color display device having optimum subpixel arrangement
2207965301Color conversion preserving global and local image characteristics
2217965300Methods and systems for efficient white balance and gamma control
2227956923Mobile terminal having image corrector
2237956867Color separation multiplexing for real-time multi-dimensional device calibration
2247952622Imaging apparatus and imaging method
2257944466Endoscope apparatus
2267940334Adaptive gamma transform unit and related method
2277940281Dithering method and related dithering module and liquid crystal display (LCD)
2287932939Apparatus and method for correcting blurred images
2297920212Digital gamma correction circuit and digital gamma correction method
2307916963Method and apparatus for an intuitive digital image processing system that enhances digital images
2317916219System and method for dynamic gamma correction in digital video
2327916185Wide dynamic range image capturing apparatus
2337911540Tone conversion apparatus, image display apparatus using the same, and tone conversion method
2347899266Image processing apparatus and method, recording medium, and program
2357893975System and method for processing images using predetermined tone reproduction curves
2367889250Image-acquisition apparatus
2377876367Imaging apparatus
2387872678Method for checking functional reliability of an image sensor having a plurality of pixels

2010

2397839456Video signal processing apparatus and video signal processing method
2407839455Image processing apparatus, image display and image processing method
2417839414Methods and devices for display color compensation
2427817210Image processing method, image display apparatus, and television apparatus
2437817190Method and apparatus for processing an image exposed to backlight
2447800665Method and apparatus for image processing
2457796171Sensor-based gamma correction of a digital camera
2467791656Image sensing apparatus and image processing method
2477787172Gamma correction for adjustable light source
2487787035Image acquiring apparatus and image processing method thereof
2497773826Image processing apparatus and image processing method
2507756354Image processing apparatus, image taking apparatus and program
2517755681Apparatus and method of gamma correction in digital image processing device
2527738699Image processing apparatus
2537728880Automatic white balance method and apparatus
2547705919Video processing device, video display device and video processing method therefor and program thereof
2557692607Apparatus and method for adjusting image on the basis of characteristics of display system
2567688328Luminance point correction without luminance degradation
2577679686Electronic device comprising a gamma correction unit, a process for using the electronic device, and a data processing system readable medium
2587663678Gamma correction, image processing method and program, gamma correction circuit, image processing apparatus, and display apparatus
2597663677Imaging apparatus with gradation sequence conversion based at least upon zoom position
2607659945Color reproduction method and system, and video display method and device using the same
2617646931Automatic analysis and adjustment of digital images with exposure problems
2627646411Imaging apparatus

2009

2637633558Display device capable of compensating for luminance of environments
2647629950Gamma reference voltage generating circuit and flat panel display having the same
2657612831Gamma correction device, image conversion apparatus using the same, and display device
2667596280Video acquisition with integrated GPU processing
2677575330Method and apparatus for increasing effective contrast radio and brightness yields for digital light valve image projectors
2687574042Image processing apparatus
2697573532Image processing device
2707570808Better picture for inexpensive cameras
2717567301Flat panel television
2727561753System and method for comparing images with different contrast levels
2737545421Apparatus, system, and method for optimizing gamma curves for digital image devices
2747511770Method and device for processing a video signal aimed at compensating for the defects of display devices
2757508457Video signal processor circuit and television receiver
2767495695Image processing device and method capable of emphasizing the contrast of an image taken by an image sensor
2777483083Movie enhancement
2787483064Imaging apparatus
2797477303Anti-aliasing video camera processing apparatus and method

2008

2807466352Gamma correction device in image capturing apparatus
2817463296Digital cameras with luminance correction
2827463295Characteristic correction apparatus for gamma correcting an image based on the image type
2837456873Image signal processing system and camera for obtaining luminance-system signal and color-system signal
2847447374Method and apparatus for an intuitive digital image processing system that enhances digital images
2857446782Image processing device
2867443442Image apparatus and method for compensating for high and low luminance image portions via exposure control and gamma correction
2877440015Gamma correction method and system
2887411619Signal processing method, a signal processor circuit, and imaging apparatus
2897391451Reconfigurable, multi-output frame grabber for machine vision applications
2907382416Nonlinear process circuit used for image processing
2917375758Electronic camera
2927372507Real-time content based gamma adjustment for digital video display
2937369183Image display apparatus
2947358994Image processing apparatus, image processing method, recording medium thereof, and program thereof
2957352398Image pick-up apparatus and method for picking up and synthesizing plural images to generate a dynamic range image

2007

2967312800Color correction of digital video images using a programmable graphics processing unit
2977265795Video signal processing circuit, video display apparatus, and video display method
2987248254Gamma correcting circuit and panel drive apparatus equipped with gamma correcting circuit
2997233365Digital DC restore methods and apparatus
3007230644Image-sensing apparatus with brightness range adaptation functionality
3017190396Image processing circuit of image input device
3027167214Signal processing unit and liquid crystal display device

2006

3037154562Methods and circuits for implementing programmable gamma correction
3047151566Electronic camera
3057145608Method of using locality statistics characteristic to enhance gamma corrections
3067126632Method and apparatus for modifying the color saturation of electronically acquired images
3077102696Method of effecting various anti compensation processes on segmented gray level of input image on plasma display panel
3087102669Digital color image pre-processing
3097092625Camera with an exposure control function
3107088390Imaging apparatus in which exposure control is performed to suppress changes in sensitivity due to changes in gradation mode
3117061529Solid-state image sensing apparatus
3127061528Signal processing apparatus which suppresses a color signal according to luminance level
3137057653Apparatus capable of image capturing
3147050099Solid-state image pickup apparatus
3157038735Video display system utilizing gamma correction
3167038721Gamma correction circuit
3177034878Camera apparatus and method of taking pictures including simplified processing
3187027090Image input device
3196992713Fully integrated solid state imager and camera display
3206987499Method for driving liquid crystal display, liquid crystal display device and monitor provided with the same

2005

3216967679Imaging apparatus, imaging optical unit, and imaging system
3226967660Image processing apparatus and image processing system
3236963364Method of improving a signal in a sequence of images acquired with a digital color video camera
3246952193Image display apparatus and image display methods
3256943836Digital-signal-processing circuit, display apparatus using the same and liquid-crystal projector using the same
3266940556Electronic still camera and information recording appartus
3276919905Method and device for visual calibration of displays
3286917382Signal processing apparatus and method thereof
3296906828Method and system of individualizing tone-reproduction curves calibration and applying thereof
3306885428Light source device and projection television
3316847374Environment-compliant image display system and program
3326844881Method and apparatus for improved color correction

2004

3336833876Using a reduced memory look up table for gamma correction through interpolation
3346806903Image capturing apparatus having a .gamma.-characteristic corrector and/or image geometric distortion correction
3356806861Reference gamma compensation voltage generation circuit
3366804038Bipolar operation of light-modulating array
3376791576Gamma correction using double mapping with ratiometrically-related segments of two different ratios
3386791566Image display device
3396778182Display device
3406774873Method for implementing error diffusion on plasma display panel
3416704008Non-uniformity correction for displayed images
3426700627Method of characterizing a video display
3436697127Gamma correction circuit

2003

3446661917Gradation correcting apparatus
3456654028Display device
3466636229Gradation correction circuit, and .gamma. correction apparatus
3476633343Dynamic gamma correction apparatus
3486611290Image signal correction device
3496593934Automatic gamma correction system for displays
3506584238Dynamic range modification
3516573934Apparatus and method for digital correction of non-linearity using a piecewise linear approximation technique
3526563534High definition television camera apparatus for correcting a characteristic value of a video signal
3536535255Illumination intensity correcting circuit
3546535207Display device and display device correction system
3556515699Anti-aliasing video camera processing apparatus and method
3566507347Selected data compression for digital pictorial information

2002

3576483544Image processing method and image processing apparatus for executing gradation conversion of a pixel
3586462735Display device, gamma correction method, and electronic equipment
3596441870Automatic gamma correction for multiple video sources
3606433838Video signal processing method for improving the picture of dim area
3616433823Solid state image sensing device and image sensing method
3626426664Suppresser circuit
3636404512Method and apparatus for image processing capable of efficiently performing a gamma conversion operation
3646346857Gamma conversion circuit changeable gain rate and amplifing capable range thereof
3656344857Gamma correction circuit
3666340996.gamma. Correction system and method utilizing graph approximation

2001

3676313884Gamma correction
3686304300Floating point gamma correction method and system
3696295098Illumination intensity correcting circuit
3706292165Adaptive piece-wise approximation method for gamma correction
3716281944Apparatus and method for correcting non-linear characteristics in display device
3726278496Digital correction circuit and image data processing apparatus equipped with a digital correction circuit
3736271822Digital liquid crystal display driving circuit
3746266102Image display method, gradation conversion circuit, and image signal conversion apparatus
3756243057Deformable mirror device driving circuit and method
3766215913Non-monotonic contour diffusion and algorithm
3776184852Spatial light modulators
3786181368Electronic endoscope

2000

3796166781Non-linear characteristic correction apparatus and method therefor
3806141047Image signal processing apparatus and image pickup device
3816137542Digital correction of linear approximation of gamma
3826100938Gamma correction circuit for television receiver
3836064366Spatial light modulators
3846052491Non-monotonic contour diffusion and algorithm
3856052166LCD projector comprising light sensor and correction circuit
3866040860Imaging apparatus for supplying images with rich gradation across the entire luminance range for all subject types
3876034660Spatial light modulators
3886034656Plasma display panel and method of controlling brightness of the same
3896020921Simple gamma correction circuit for multimedia

1999

3905990979Gamma correction circuit and video display apparatus using the same
3915990949Digital still camera which displays a gamma-corrected high-quality still image upon depression of a shutter release button but without displaying an unwanted image
3925982449Television receiver that provides gradation correction using a CPU
3935982427Digital image processing
3945966177Image display apparatus
3955940058Clamp and gamma correction circuit, and image display apparatus and electronic machine employing the same
3965937088Apparatus and method for improving memory usage of look-up table mapping
3975933199Gamma correction circuit using analog multiplier
3985926562Image processing method using reference values to determine exposure state
3995909512Method and apparatus to reduce scintillation in dithered display systems
4005907355Solid state color image pickup apparatus
4015903316Information signal processing apparatus
4025900918Adjustable video gamma circuit
4035870076Pixel data correction apparatus for use with an actuated mirror array
4045867225Multiple mode controlling signal processing apparatus
4055864370Display apparatus with gamma correction
4065864369Method and apparatus for providing interlaced video on a progressive display

1998

4075841487Circuit arrangement for controlling a picture display tube
4085828415Apparatus for controlling video down-conversion
4095822009Video down-conversion
4105818521Image pickup apparatus having computational gamma correction facility
4115812203Deflickering and scaling scan converter circuit
4125808699Visual image signal processing apparatus using arithmetic operation on brightness reference signal overlaid in fly-back period of input visual image signal
4135798790Display apparatus with gamma measurement
4145796384Gamma correction circuit of a liquid crystal display using a memory device
4155764216Gamma correction circuit, a liquid crystal driver, a method of displaying image, and a liquid crystal display
4165734746Picture signal enhancement circuit includes a non-linear circuit for enhancing the picture signal in dependence of histograms measured at transitions in the picture signal
4175729297Scanning line interpolator using gamma correction memory
4185710594Digital gamma correction method and apparatus
4195706058Gamma correction circuit for correcting video data obtained by photoelectric transfer and having a non-linear characteristic

1997

4205691821A/D converting apparatus and image sensing apparatus
4215686939Spatial light modulators
4225675217Color electroluminescent device and method of manufacturing the same
4235673060Deformable mirror device driving circuit and method
4245650784Digital AGC circuit for image processing
4255638536Signal processing apparatus capable of computing replacement data substituted for set data
4265610666Gamma correcting circuit

1996

4275589889Image memory device and method of operating same
4285585846Image signal processing circuit in a digital camera having gain and gamma control
4295557340Noise reduction in video signals
4305539459Optimal tone scale mapping in electronic cameras
4315534948Method and apparatus for reducing the effect of alias components produced through non-linear digital signal processing, such as gamma correction, by selective attenuation
4325533086X-ray examination apparatus
4335523785Image pickup apparatus for a video camera
4345483256LCD driving analog nonlinear operation circuit producing a composite drive voltage of function voltages of differential amplifiers
4355481317Gamma correction circuit which selects one of a plurality of gamma corrected signals as an output signal based on the level of an input signal

1995

4365473373Digital gamma correction system for low, medium and high intensity video signals, with linear and non-linear correction
4375473372Gamma correction circuit approximating non-linear digital conversion
4385461430Dynamic gamma correction circuit for use in image projectors
4395459531Gamma-compensating circuit using the amplification degree of a transistor
4405412424Electronic still camera with multi-area light metering and multi-degree image signal contour enhancement
4415408267Method and apparatus for gamma correction by mapping, transforming and demapping
4425398076Gamma correcting processing of video signals
4435394195Method and apparatus for performing dynamic gamma contrast control

1994

4445361094CCD-type color video camera with gamma correction
4455359369Gradation correcting apparatus for correcting gradation of video signals
4465349546Method and apparatus for non-linear signal processing with reduced upper harmonic components
4475343254Image signal processing device capable of suppressing nonuniformity of illumination
4485335068Gamma compensating circuit method and apparatus of a color TV camera
4495311297HDTV to conventional TV signal converting apparatus with non-linear level correction
4505303055Method and apparatus to improve a video signal
4515296919Image processing apparatus and method for performing nonlinear gamma corrections
4525280353Method and apparatus for signal processing by interpolation and filtering with simultaneous frequency response compensation and offset generation

1993

4535258658Gamma correction circuit
4545255093Apparatus and a method for limiting gain in a digital gamma corrector
4555251017Gamma correction circuit for an analog video signal
4565243426Circuit for gamma correction of a digital video signal and having a memory for storing data defining a desired gamma correction characteristic
4575235410Apparatus and methods for non-linear processing of digital signals
4585202763Television receiver with partially by-passed non-linear luminance signal processor

1992

4595175621Gamma correction circuit and method thereof
4605166790Method and apparatus for maintaining the mean valves of video signals
4615162902Non-linear luminance signal processor responsive to average picture level (APL) of displayed image
4625132796Method and apparatus for digitally processing gamma pedestal and gain
4635089890Gamma correction device

1991

4645070405Electronic still camera with multi-area light metering and gray scale modification
4655057919Picture signal interpolation circuit with gamma compensation
4665034888Electronic endoscope apparatus having different image processing characteristics for a moving image and a still image
4675019909Video camera for photographing papers

1990

4684931864Image forming apparatus which performs gamma correction on the basis of a cumulative frequency distribution produced from a histogram of image data representing a selected area of an image

1989

4694862270Circuit for processing a digital signal having a blanking interval
4704847524Gamma correction circuit
4714833527Luminance signal forming circuit
4724829381System and method for electronic image enhancement by dynamic pixel transformation
4734800591Signal processing apparatus

1988

4744786968Gamma correction of digital video data by calculating linearly interpolated gamma correction values

1987

4754689678Gradation distortion compensation by FET pre-emphasis circuit operating in FET saturation region
4764667228Image signal processing apparatus
4774651210Adjustable gamma controller

1986

4784626898Color camera using digital signal processing techniques
4794589021Gamma compensating circuit
4804568978Method of a circuit arrangement for producing a gamma corrected video signal

1985

4814558363Gamma correction circuit
4824503464Gamma correction circuit for television
4834499494Television gamma corrector with symmetrical response about black-level

1984

4844480268Gamma correction circuit

1983

4854394688Video system having an adjustable digital gamma correction for contrast enhancement
4864393406Circuit for modifying the gradation of pictures produced by video signals

1981

4874257064Wideband linear video contrast control
4884251755CRT Digital brightness control
4894249208Gamma correction circuit for a video signal and television camera suitable therefor

1980

4904241362Circuit for increasing a signal slope of a periodically occurring signal mainly near a reference level
4914227216Gamma correction circuit for television

1978

4924126814Electron gun control system

1977

4934015079Gamma correction circuit

1976

4943970774Electronic signal mixer
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017