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2958results about How to "Improve picture quality" patented technology
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Moving picture variable bit rate coding apparatus, moving picture variable bit rate coding method, and recording medium for moving picture variable bit rate coding program
InactiveUS6259739B1Improved coding resultIncrease the compression ratioTelevision system detailsPicture reproducers using cathode ray tubesComputer scienceTime processing
A moving picture variable bit rate coding apparatus receives digitized moving pictures and subjects them to coding according to a variable bit rate method using real time processing in response to the input of the pictures. The apparatus performs variable bit rate coding in real time by sequentially performing blocking, conversion processing, quantization processing, and generation of bit streams in response to the input of digitized moving picture data, and setting a quantization scale used for quantization corresponding to a quantity of generated bit streams to perform coding processing and control of quantization in parallel.
Owner:PANASONIC CORP
Liquid crystal display and panel therefor
ActiveUS20050036091A1Improve picture qualityTransistorSolid-state devicesCapacitanceLiquid-crystal display
A flat panel display having an improved picture quality is disclosed. In one embodiment, a first pixel electrode and a second pixel electrode are formed in each subpixel area. The electrodes enclose an open space (gap) such that their outer boundary has a substantially rectangular shape. The flat panel display may also include a capacitance electrode coupled to the second pixel electrode to form a coupling capacitor. In use, the coupling capacitor operates such that a magnitude of a voltage applied to the first pixel electrode is lower than an applied data voltage, and a magnitude of a voltage applied to the second pixel electrode is higher than an applied voltage. The different voltages operate such that a tilt direction of LC molecules disposed above the first pixel electrode differs from a tilt direction of LC molecules disposed above the second pixel electrode.
Owner:SAMSUNG DISPLAY CO LTD
Format converter using bi-directional motion vector and method thereof
InactiveUS6900846B2Improve picture qualityEasy to implementTelevision system detailsPicture reproducers using cathode ray tubesMotion vectorComputer science
A format converter which performs frame rate conversion and de-interlacing using a bi-directional motion vector and a method thereof are provided. The method includes the steps of (a) estimating a bi-directional motion vector between the current frame and the previous frame from a frame to be interpolated; setting the motion vector of a neighboring block that has the minimum error distortion, among motion vectors estimated in step (a), as the motion vector of the current block; and (c) forming a frame to be interpolated with the motion vector set in step (b).
Owner:SAMSUNG ELECTRONICS CO LTD
Liquid crystal display apparatus
InactiveUS20050264731A1High picture qualityAdvanced image informationPolarising elementsNon-linear opticsPhysicsElectric field
A liquid crystal display of a transflective IPS system in which a lateral electric field is applied to a liquid crystal layer. Polarization films are arranged on the entire surface of a transmissive display unit and a reflective display unit in a manner similar to a transmissive IPS system. An inner retardation layer whose retardation is equal to a half wave is formed in the reflective display unit. A retardation of the liquid crystal layer of the reflective display unit is set to a quarter wave. Thus, a reflective display can be performed in a wide range of environment from a light place to a dark place and a transmissive display of a wide viewing angle and high picture quality can be performed.
Owner:PANASONIC LIQUID CRYSTAL DISPLAY CO LTD +1
Liquid crystal display apparatus
InactiveUS7088409B2Improve picture qualityEasy to confirmPolarising elementsNon-linear opticsLiquid-crystal displayHalf wave
A liquid crystal display of a transflective IPS system in which a lateral electric field is applied to a liquid crystal layer. Polarization films are arranged on the entire surface of a transmissive display unit and a reflective display unit in a manner similar to a transmissive IPS system. An inner retardation layer whose retardation is equal to a half wave is formed in the reflective display unit. A retardation of the liquid crystal layer of the reflective display unit is set to a quarter wave. Thus, a reflective display can be performed in a wide range of environment from a light place to a dark place and a transmissive display of a wide viewing angle and high picture quality can be performed.
Owner:PANASONIC LIQUID CRYSTAL DISPLAY CO LTD +1
Adaptively encoding multiple streams of video data in parallel for multiplexing onto a constant bit rate channel
InactiveUS6859496B1Configuration highRapid responsePulse modulation television signal transmissionPicture reproducers using cathode ray tubesMultiplexingFrame based
A control strategy is provided for dynamically encoding multiple streams of video data in parallel for multiplexing onto a constant bit rate channel. The control strategy allows individual encode bit rates to be dynamically adjusted for each video data stream based in part on relative complexity of the multiple streams of video data, as well as fullness of compressed video data buffers and a channel buffer coupled between the encoders and the constant bit rate channel. The control strategy includes analyzing the multiple streams of video to determine relative complexity thereof, encoding the multiple streams of video frames in parallel, and dynamically adapting encoding of at least one stream of the video frames based on the relative complexity of the video frames. The bit rate for each stream of video frames is only changed at GOP boundaries, or if a scene change occurs. The calculated bit rate is preferably further modified based upon buffer fullness.
Owner:IBM CORP
Method and apparatus for image intra prediction
InactiveUS20090225834A1Minimum rate-distortion costImprove picture qualityColor television with pulse code modulationColor television with bandwidth reductionAlgorithmEdge based
A method and apparatus for intra prediction of an image having arbitrary directivity are provided. Arbitrary edge directions and amplitudes of the edges based are calculated on neighboring pixels of a prediction block. From the calculated edge directions, a number of intra prediction directions in an order of the amplitudes of the edges is selected. An optimum intra prediction mode is determined by performing block prediction in the selected number of the intra prediction directions.
Owner:SAMSUNG ELECTRONICS CO LTD
Image pickup apparatus and optical-axis control method
InactiveUS20100289941A1Improve picture qualitySimple wayTelevision system detailsPrintersOptical axisOptic system
In order to perform adjustment of relative positions between an optical system and imaging devices, a plurality of the imaging devices, a plurality of solid lenses that form images of the imaging devices, and a plurality of optical-axis control units that control the direction of optical axes of light incident to the imaging devices are included.
Owner:SHARP KK
Image coding method and image decoding method
InactiveUS20040032908A1Improve efficiencyImprove picture qualityPicture reproducers using cathode ray tubesCode conversionDecoding methodsComputer graphics (images)
A picture coding apparatus (300) is a picture coding apparatus that codes a difference between picture data (Img) representing an input picture and predictive picture data (Pred) representing a predictive picture for the input picture and generates coded picture data, and includes a picture decoding unit (104) for decoding coded picture data (Img) after the picture data (Img) is coded; inter pixel filters A and B (303 and 304) for performing inter pixel filter operation for decoded picture data (Recon) obtained by the picture decoding unit (104); switches (301 and 302) for selecting one of the inter pixel filters; and an inter picture predicting unit (108) for generating the predictive picture data (Pred) for the input picture data (Img) using filtered decoded picture data (FilteredImg1), as reference picture data (Ref), obtained by the selected inter pixel filter.
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
Control strategy for dynamically encoding multiple streams of video data in parallel for multiplexing onto a constant bit rate channel
InactiveUS6956901B2Improve picture qualityRapid responseTelevision system detailsPulse modulation television signal transmissionMultiplexingData stream
A control strategy is provided for dynamically encoding multiple streams of video data in parallel for multiplexing onto a constant bit rate channel. The control strategy is a single pass strategy which allows individual encode bit rates to be dynamically adjusted for each video data stream based on part in relative complexity of the multiple streams of video data, as well as fullness of compressed video data buffers and a channel buffer coupled between the encoders and the constant bit rate channel. The control strategy includes encoding the multiple streams of video frames in parallel, and dynamically adapting encoding of at least one stream of the video frames based on relative complexity of the video frames. The bit rate for each stream of video frames is only changed at GOP boundaries, or if a scene change occurs. The calculated bit rate is preferably further modified based upon buffer fullness.
Owner:INT BUSINESS MASCH CORP
Wafer based camera module and method of manufacture
ActiveUS20060132644A1Easy and inexpensive to manufactureSmall sizeTelevision system detailsSolid-state devicesSensor arrayAdhesive
An integrated camera module (10, 10a) for capturing video images in very small digital cameras, cell phones, personal digital assistants, and the like. A lens assembly (24, 24a) is rigidly affixed in relation to a sensor array area (14) of a camera chip (12) by a molding (26). The molding (26) is formed on the camera chip (12), and optionally on a printed circuit board (16, 16a) on which the camera chip (12) is mounted. The lens assembly (24, 24a) is held in place in a recess (29) of the molding (26) by an adhesive (28). The molding (26) is formed such that a precise gap (30) exists between the lens assembly (24) and a sensor array area (14) of the camera chip (12). In a particular embodiment, lens holders (306, 506) are formed entirely on the camera chips (302, 502) before or after they are separated from one another.
Owner:NANCHANG O FILM OPTICAL ELECTRONICS TECH CO LTD
System and method for controlling a digital camera provided with a WWW server function
ActiveUS7340766B2Solve the lack of spaceImprove picture qualityTelevision system detailsNetwork traffic/resource managementComputer graphics (images)Control system
A control system for digital camera makes it possible to control a digital camera from a personal computer and to operate the digital camera simultaneously from both of the digital camera side and the personal computer side by means of performing a communication between the digital camera on which a WWW server function is equipped and the personal computer having a WWW browser function.
Owner:RICOH KK
Distributed control strategy for dynamically encoding multiple streams of video data in parallel for multiplexing onto a constant bit rate channel
InactiveUS7085322B2Simplifying and economizing design of systemEliminate needPulse modulation television signal transmissionPicture reproducers using cathode ray tubesMultiplexingData stream
A distributed control strategy is provided for dynamically encoding multiple streams of video data in parallel for multiplexing onto a constant bit rate channel. The control strategy is a single pass strategy which allows individual encode bit rates to be dynamically adjusted for each video data stream based in part on relative complexity of the multiple streams of video data, as well as fullness of compressed video data buffers coupled between the encoders and the constant bit rate channel. The control strategy includes encoding the multiple streams of video frames in parallel using multiple encoders, exchanging one or more statistics between the encode processes using an exchange interface, and dynamically adapting encoding of at least one stream of the video frames using the exchanged statistics based on relative complexity of the video frames.
Owner:INT BUSINESS MASCH CORP
Electro-optical device and manufacturing method thereof
InactiveUS20050035708A1Simple formatEasy to operateVacuum tubesDischarge tube luminescnet screensDisplay deviceEngineering
The present invention aims to provide simple, high-speed processing for the formation of an EL layer by an ink-jet method. A method of manufacturing an electro-optical device having good operation performance and high reliability, and in particular, a method of manufacturing an EL display device, is provided. The present invention forms EL layers continuously across a plurality of pixels when the EL layers are formed by the ink-jet method. Specifically, with respect to m columns and n rows of pixel electrodes arranged in a matrix state, the EL layers are formed so as to form stripes with respect to one certain selected row or one column. The EL layers may also be formed having an oblong shape or a rectangular shape with respect to each pixel electrode.
Owner:SEMICON ENERGY LAB CO LTD
Image color adjustment
InactiveUS20050213128A1High qualityIncrease freedomDigitally marking record carriersColor signal processing circuitsLight sourceImage selection
At least one of a plurality of achromatic object color ranges is selected based on the image targeted for processing, and a color adjustment process is executed based on the selected achromatic object color range. Image may be reproduced using a color image data after a color correction of the color image data, the color correction being performed according to illumination light source associated with the color image data. Image data may also be output after the color correction. Image data may also be output associated with data related to the illumination light source, to reproduce the image after the color correction.
Owner:SEIKO EPSON CORP
Solid-state imaging device and camera using the same
InactiveUS20080170143A1Improve picture qualityHigh sensitivityTelevision system detailsTelevision system scanning detailsLength waveScale down
The object of the present invention is to provide a solid-state imaging device equipped with a color filter which is highly durable, inexpensive to manufacture, and adaptable to the scaling down of pixels, and a camera using the solid-state imaging device. The solid-state imaging device includes a photodiode, and a metal optical filter formed above the photodiode, which allows light of a desired wavelength to be transmitted. The metal optical filter is made of a metal thin film in which plural cylinder-shaped apertures are periodically arrayed. The size of each of the apertures is smaller than the desired wavelength, and an inter-aperture distance between a predetermined aperture and an aperture adjacent to the predetermined aperture is shorter than the desired wavelength.
Owner:PANASONIC CORP
Mounting bracket
InactiveUS20020084396A1Easy to adjustImprove picture qualityAntenna supports/mountingsStands/trestlesMechanical engineeringEngineering
Owner:BELLSOUTH INTPROP COR
Image pickup apparatus
ActiveUS20100225795A1High qualityImprove picture qualityTelevision system detailsTelevision system scanning detailsWide dynamic rangeFloating diffusion
An image pickup apparatus that makes it possible to achieve both high picture quality and a wide dynamic range is provided. Each pixel unit included in the image pickup apparatus includes: four photodiodes; four transfer transistors; a charge storage portion (four floating diffusions) for storing electric charges generated at the photodiodes; an amplification transistor; a select transistor; and a reset transistor. The image pickup apparatus further includes multiple coupling transistors. Each coupling transistor couples together the charge storage portions of two pixel units of the pixel units. A scanning circuit switches on or off the coupling transistors according to read mode.
Owner:RENESAS ELECTRONICS CORP
H.264/AVC intra coding algorithms having quality scalability
InactiveUS20080219350A1Reduce calculationImprove coding efficiencyColor television with pulse code modulationColor television with bandwidth reductionBasic levelEncoding algorithm
Different algorithms are used in H.264 / AVC intra coding to form three coding levels. Algorithms used in two of the three coding levels reduce calculation complexities and power consumptions. The basic level is an exception, which fully keeps an original picture quality. Thus, various needs can be met by coding in the various levels with the various algorithms.
Owner:NATIONAL CHUNG CHENG UNIV
Video system
InactiveUS20050018053A1Improve efficiencyImprove performanceTelevision system detailsTelevision conference systemsComputer graphics (images)Computer terminal
In a video system of the invention, control means is provided for a terminal input apparatus which is connected by a communication network of a camera on the partner side and which comprises an image display apparatus having a multiwindow display function for selecting and displaying the camera. An image pickup operation which is required to the camera on the partner side, for example, the image pickup direction, focal distance, panning, exposure amount, white balance, automatic focusing, and the like of the designated camera are inputted by using an image display and a window display of the image display apparatus. The operation of the camera on the partner side and the operations of a tripod, a movable arm, and the like to hold the camera are controlled through communicating means. A photographed image is displayed by the display apparatus.
Owner:CANON KK
Organic light emitting display device and method for driving the same
ActiveUS20150187276A1Extend the lifespanImprove reliabilityStatic indicating devicesOrganic light emitting deviceDisplay device
An organic light emitting display device includes a display panel having a plurality of pixels, each pixel connected to a data line, a gate line group and a reference line, each pixel further including: an organic light emitting device; a driving transistor controlling a current flowing in the organic light emitting device and including first and second gate electrodes overlapped with each other, with a semiconductor layer provided therebetween; a first switching transistor selectively supplying a data voltage supplied to the data line to a first node connected to the first gate electrode; a second switching transistor selectively supplying a sensing voltage to the second gate electrode; a third switching transistor selectively connecting a second node connected to a source electrode of the driving transistor to the first node; a fourth switching transistor selectively connecting the reference line to the second node; a first capacitor connected between the second gate electrode and the second node, the first capacitor storing a threshold voltage of the driving transistor; and a second capacitor connected between the first and second nodes, the second capacitor storing a difference voltage of the first and second nodes.
Owner:LG DISPLAY CO LTD
Device and method for decoding HDTV video
InactiveUS6104753AImprove picture qualityQuality improvementPulse modulation television signal transmissionPicture reproducers using cathode ray tubesProgressive scanComputer graphics (images)
HDTV video decoder circuit is disclosed, which has an +E,fra 1 / 4+EE size frame memory for a progressive scanned or interlace scanned video and yet can conduct IDCT and motion compensation to fit to the reduced frame memory size, which, in comparison to a conventional MPEG-2 video decoder which uses a 4x4 IDCT that requires +E,fra 1 / 4+EE frame memory in encoding an interlace scanned image into frame picture only to lose field information of the image resulting in a significant damage to the picture quality, facilitates to maintain the field information as it was resulting in an improvement in the picture quality.
Owner:LG ELECTRONICS INC
Video encoding using variable bit rates
InactiveUS20050105815A1Improve picture qualityIncrease computational overheadColor television with pulse code modulationColor television with bandwidth reductionVideo encodingTheoretical computer science
A system and method is provided for variable bit rate encoding using a complexity ratio. Quantization parameter is calculated using a complexity ratio, which is equal to a local complexity divided by a global complexity. Complex pictures are allocated a larger bit budget relative to simple pictures. With the larger bit budget the quality of complex pictures can be maintained while reducing the overall size of the encoded video stream.
Owner:CRP STEVENS CREEK L L C
Integrated lens and chip assembly for a digital camera
InactiveUS20050185088A1Easy and inexpensive to manufactureSmall sizeTelevision system detailsSemiconductor/solid-state device detailsSensor arrayAdhesive
A integrated camera module (10, 10a) for capturing video images in very small digital cameras, cell phones, personal digital assistants, and the like. A lens assembly (24, 24a) is rigidly affixed in relation to a sensor array area (14) of a camera chip (12) by a molding (26). The molding (26) is formed on the camera chip (12), and optionally on a printed circuit board (16, 16a) on which the camera chip (12) is mounted. The lens assembly (24, 24a) is held in place in a recess (29) of the molding (26) by an adhesive (28). The molding (26) is formed such that a precise gap (30) exists between the lens assembly (24) and a sensor array area (14) of the camera chip (12).
Owner:NANCHANG O FILM OPTICAL ELECTRONICS TECH CO LTD
Organic light emitting display
ActiveUS20060055336A1Improve picture qualityReduce leakage currentElectrical apparatusStatic indicating devicesDriving currentData signal
An organic light emitting display includes a plurality of pixels, at least one of the pixels having: an organic light emitting diode; a driving transistor adapted to supply a driving current to the organic light emitting diode; a first switching transistor adapted to selectively supply a data signal to the driving transistor; a second switching transistor adapted to selectively supply an initialization signal; a third switching transistor adapted to selectively allow the driving transistor to be connected as a diode and to selectively supply the initialization sought; a storage capacitor adapted to store a first voltage corresponding to the initialization signal received from the third switching transistor and then to store a second voltage corresponding to the data signal applied at a gate electrode of the driving transistor; and an interrupter adapted to selectively supply a pixel power to the driving transistor and to selectively allow the driving current to flow into the organic light emitting diode. In this display, the amount of current leaking out through a switching transistor is decreased, and thus a voltage variance applied to a gate electrode of a driving transistor is decreased, thereby enhancing a contrast of an image.
Owner:SAMSUNG DISPLAY CO LTD
Transreflective liquid crystal display panel having a wide viewing angle
Owner:PANASONIC LIQUID CRYSTAL DISPLAY CO LTD +1
Apparatus and method for adaptive motion compensated de-interlacing of video data
InactiveUS7042512B2Improve qualityImprove picture qualityTelevision system detailsPicture reproducers using cathode ray tubesSpacetimeSelf adaptive
Owner:SAMSUNG ELECTRONICS CO LTD
Data transmission system
InactiveUS7340764B2Transferring large capacityShort timeTelevision system detailsPulse modulation television signal transmissionOriginal dataData file
A transmission control unit (12) of a transmitting station (10) specifies usable plural transmission paths (20). A data supply unit (11) transfers movie contents file encoded by MPEG 4 to plural divisional distribution encoders (13) corresponding to the specified plural transmission paths (20). The respective divisional distribution encoders (13) divide movie contents file into plural divisional distribution data in which original data file can be restored by carrying out synthesis. Further, the transmitting station (10) transmits divided respective divisional distribution data through transmission paths different from each other. Respective receiving units (31) of a receiving station (30) respectively receive divisional distribution data from the plural transmission paths (20). A linking decoder (32) synthesizes plural divisional distribution data to restore original movie contents file. Thus, high speed transfer of contents file of large capacity can be carried out.
Owner:SONY CORP
Wafer scale lens and optical system having the same
InactiveUS20060262416A1High diffraction efficiencyReducing angle of lightMountingsLensMiniaturizationOptoelectronics
Provided are wafer scale lenses having a diffraction surface as well as a refractive surface, and an optical system having the same. The wafer scale lens includes a lens substrate, a first lens element formed on the object side of the lens substrate, having a positive refractive power, a second lens element formed on the image side of the lens substrate, having a diffraction surface, and a third lens element deposited on the diffraction surface of the second lens element, having a negative refractive power. The invention allows miniaturized optical system and efficient calibration of angle of view, reducing the angle of light incident onto the diffractive surface, thereby increasing diffraction efficiency and eliminating high order diffraction light to improve picture quality.
Owner:SAMSUNG ELECTRO MECHANICS CO LTD
Decoder, encoder, method for decoding and encoding, data stream
ActiveUS20130034159A1Improve picture qualityReduce distortion problemsColor television with pulse code modulationColor television with bandwidth reductionData streamComputer vision
A decoder for decoding a picture is described, having: an extractor adapted to extract a first subset of syntax elements from a received data stream and a second subset of syntax elements being disjoint from the first subset of syntax elements, wherein the second subset of syntax elements has filter indication information defining a first filter for a first region of at least two different regions of the picture and a second filter for a second region of the at least two different regions of the picture; a pre-decoder adapted to pre-decode the picture based on the first subset of syntax elements to produce a reconstructed version of the picture; and a filter stage adapted to apply the first filter to the first region of the reconstructed picture to obtain a first filtered version of the reconstructed version of the picture and to apply the second filter to the second region of the first filtered version of the reconstructed version of the picture to obtain a second filtered version of the reconstructed version of the picture.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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