338results about How to "Degradation of image quality" patented technology

A liquid crystal display (LCD) having a built-in touch screen panel includes a first substrate having a plurality of pixels, wherein each of the pixels comprises a thin film transistor and a pixel electrode; a plurality of common electrode patterns corresponding to the pixel electrodes and spaced from each other along a second direction; a second substrate facing the first substrate, the second substrate having color filter patterns, wherein the color filter patterns are arranged to correspond to the pixels; a plurality of black matrix patterns between the color filter patterns, the plurality of black matrix patterns being spaced from each other along a first direction crossing the second direction; and a liquid crystal layer between the first and second substrates, wherein the plurality of common electrode patterns and at least one of the black matrix patterns are used as driving electrodes and sensing electrodes, respectively.

An image display device is provided which is capable of improving reproducibility of a white color. An RGB video signal is converted by a gamma converting section into three color luminance values and the maximum luminance value and minimum luminance value of the three color luminance values are calculated by a Min / Max calculating section. The first four color luminance values are calculated by an RGB luminance calculating section. A scaling factor is calculated by a scaling factor calculating section based on the first four color luminance values and the maximum luminance value. The second four color luminance values are calculated by an RGBW scaling luminance calculating section based on the first four color luminance values and on the scaling factor. An RGBW video signal corresponding to a gray level value of four color is generated by a reverse gamma converting section.

A filtering unit filters a moving image decoded by an image decoding unit to reduce noise component. A tone correcting unit corrects tone in accordance with setting of brightness set by a display control unit, utilizing tone characteristic of the moving image. The display control unit detects a signal from an operating unit, and controls brightness of a screen of the display unit. Further, the display control unit controls a switch such that an output of either the filtering unit or the tone correcting unit is input to the display unit.

In a case where aberrations of a camera lens are large, and imaging-center coordinates and reading-center coordinates coincide with each other or are located in proximity to each other within an allowable range, and trimming was not effected or center trimming was not effected, correction parameters for correcting the aberrations of the camera lens and correction parameters for correcting the aberrations of a scanner lens are integrated, and the deterioration of image quality caused by the aberrations of the camera lens and the deterioration of image quality caused by the aberrations of the scanner lens are corrected simultaneously by using the integrated parameters.

Provided is a field effect transistor, provided with a gate electrode 15, a source electrode 13, and a drain electrode 14 formed on a substrate, including a channel layer 11 formed of an oxide containing In, Zn, or Sn as the main component, and a gate insulating layer 12 provided between the channel layer 11 and the gate electrode 15, in which the gate insulating layer 12 is formed of an amorphous oxide containing Ga as the main component.

An image processing apparatus includes a characteristic region detecting section that detects a characteristic region in an image, an image dividing section that divides the image into the characteristic region and a background region other than the characteristic region, and a compressing section that compresses a characteristic region image which is an image of the characteristic region and a background region image which is an image of the background region at different strengths from each other. The characteristic region detecting section detects the characteristic region in a plurality of moving-image-component images included in a moving image, the image dividing section divides each of the plurality of moving-image-component images into the characteristic region and the background region, and the compressing section compresses a characteristic region moving image including a plurality of characteristic region images and a background region moving image including a plurality of background region images at different strengths from each other.

A reflective liquid crystal display panel is a display panel for three-dimensional display in which pixel pairs as display elements composed of one left-eye pixel L and one right-eye pixel R each are provided in a matrix. The lenticular lens is an optical member for image separation that is provided to separate the light from the left and right pixels, and numerous lenticular lenses form a lens array that is arranged in one dimension. An anisotropic scattering sheet as an anisotropic scattering element is provided between the lenticular lens and the reflective liquid crystal display panel. According to this configuration, a reduction in the quality of the reflective display can be minimized, and improved image quality can be achieved without changing the concavo-convex structure of the reflecting panel and the lens shape of the lenticular lens in display device that is capable of displaying different images to a plurality of viewpoints.

Provided are a display device and method of driving the same. A display device includes: a display panel including: data lines and gate lines intersecting each other, and pixels in a matrix, a timing controller configured to reduce a refresh rate of the pixels in a low-speed driving mode compared to a refresh rate of the pixels in a normal driving mode, and a display panel driving circuit configured to: write data to the display panel, write data to the pixels during N driving frame periods within a unit of time, that is set to the refresh rate of the low-speed driving mode, under the control of the timing controller, where “N” is a positive integer of 2 to 4, wherein the pixels are configured to hold a voltage of previous data for a remaining time other than the N driving frame periods of the unit of time.

A liquid crystal display is provided. The liquid crystal display includes an edge common line receiving a common voltage through input sources, a plurality of pixel common line patterns that are formed in each of liquid crystal cells constituting each pixel and are electrically connected to one another, and a plurality of longitudinal common lines that are electrically connected to the edge common line to apply the common voltage to the pixel common line patterns. The pixel common line patterns are connected to common electrodes of the liquid crystal cells. Each of the longitudinal common lines is formed between two horizontally adjacent pixels in a direction parallel to data lines. The pixels includes a plurality of pixel units each including two vertically adjacent pixels, and two data lines and three gate lines are assigned to each of the pixel units.

A client server system S includes a plurality of client terminal devices 3 capable to connect with display device 4, whose screen resolution is HD or SD, and a server device which provides image information to the plurality of client terminal devices s through wireless network N. The server device 1 is structured to include a sendable resolution determining program 1134 to make CPU 111 determine whether to convert HD image information into SD image information or not, and an image information sending program 1135 to make the CPU 111 send SD image information attached with SD information to the plurality of client terminal devices 3.

The present invention is directed to obtaining an image having predetermined brightness, while making the degradation of the image as little as possible. A distance (an irradiation distance d) at which a predetermined amount of reflected light can be obtained is obtained from the guide number Gn of a strobe and the f-stop value F (the focal distance f of a zoom lens). When the strobe is used, it is judged whether or not a subject is positioned within the irradiation distance d. When the irradiation distance d of the strobe is shorter than the distance to the subject, that is, the subject is beyond the irradiation distance d of the strobe, an imaging signal is amplified than usual.

Disclosed is an imaging apparatus with a flicker detector that restrains an increased calculation amount and image quality degradation. The apparatus includes a frame rate controller for setting a frame rate of an acquired image to a first frame rate or different second frame rate, a luminance calculator for calculating a first luminance difference between two images of a first group continuously acquired at the first frame rate and a second luminance difference between two images of a second group continuously acquired at the second frame rate, and a flicker detector for comparing the first and second luminance differences with first and second threshold, respectively, and determining whether flickers of a first frequency and a different second frequency are generated or not.

It is an object of the invention to provide a technique for reducing the likelihood that cleaning will cause nozzle clogging. In periodic automatic cleaning of a printer that is not being used, the ejecting of ink droplets from each nozzle is tested prior to the cleaning to determine whether each nozzle is an operating nozzle capable of ejecting ink droplets or a non-operating nozzle incapable of ejecting ink droplets. The nozzles are only cleaned if non-operating nozzles are detected. The testing of the nozzles is also automatically carried out after cleaning.

A digital signal processing unit 17 of a digital camera which includes a solid-state imaging element 5 having an imaging pixel cell 30 and a pair of focus detecting pixel cells 31R and 31L determines whether a captured image signal obtained by imaging by the imaging element 5 has a region affected by at least one of the flare and the ghost. And, when it is determined that there is the region, the digital signal processing unit 17 performs correction processing by signal interpolation using an output signal of imaging pixel cells around the focus detecting pixel cell included in the captured image signal on an output signal of all the focus detecting pixel cells included in the captured image signal.

A pattern which does not appear at a flat portion in normal binarization processing is set as a code pattern, and a code formed from this pattern is attached. At this time, code attachment with little degradation in image quality is implemented by selecting an unnoticeable pattern.

A constant-quality rate control system and algorithm for multiple encoders with a single video source are disclosed. The system comprises a base encoder, a region of interest (ROI) detector, and at least one ROI encoder. The base encoder encodes a base video sequence which is a down-sampled version of a video sequence and sends the base video sequence to a multiplexer. The ROI detector extracts an ROI video sequence from the original video sequence. The ROI encoder encodes the ROI video sequence and sends it to the multiplexer. The ROI encoder uses information obtained during encoding of the base video sequence to improve the encoding of the ROI video sequence. The information of the base video sequence are used to better control the bit-rate and the quality of the ROI video sequence,

A gamma compensation method and a display device using the same are disclosed. The gamma compensation method includes: sensing a level of external illuminance; determining whether the sensed level of external illuminance is equal to or lower than a predetermined illuminance, wherein when the sensed level is equal to or lower than the predetermined illuminance, the luminance of the display device is reduced to an optimum luminance; and modulating gray levels of input data of the display device based on a first gamma curve when the sensed level of external illuminance is equal to or lower than the predetermined illuminance, and modulating based on a second gamma curve when the sensed level of external illuminance is greater than the predetermined illuminance, wherein the first gamma curve includes a concave curve set in a low gray level area and a convex curve set in a high gray level area, and the concave curve and the convex curve are connected via an inflection point.

The present invention provides a mask for divided printing that completes an image by plural scans using inks of different plural inks, the mask being able to suppress possible grains during printing to reduce image degradation resulting from beading. If for example, among the print permitting pixels for which the total repulsive potential is to be calculated, a print permitting pixel Do has the highest total repulsive potential, changes in repulsive potential after movement of the pixels are determined and the print permitting pixel Do is moved to a pixel having the lowest total repulsive potential after the movement. This processing is repeated to enable a reduction in the total energy of the entire plane. Consequently, the print permitting pixels are appropriately dispersed in overlapping plane masks so as to have few low frequency components.

In an image recording apparatus, reference patterns are provided on a surface of a transport belt that transports a recording medium such as paper attracted thereto to image recording sections defined by recording heads. It is arranged such that the reference patterns are detected while being transported as the transport belt is driven, and a speed change of the transport belt and a position shift in a direction perpendicular to the transporting direction of the transport belt are calculated based on information resulting from the detection, thereby controlling ejection timing and ejection position of ink droplets ejected from the recording heads.

An image pickup apparatus includes: an image pickup lens section; an image pickup device obtaining image pickup data on the basis of light detected; a microlens array section arranged on a focal plane of the image pickup lens section, and including a plurality of microlenses, each of the microlenses being provided corresponding to a plurality of image pickup pixels of the image pickup device; and a light-condensing section configured of a plurality of light-condensing elements, each of the light-condensing elements condensing light entering into each of the image pickup pixels of the image pickup device, wherein on the image pickup device, in a pixel region corresponding to each microlens, the pitch between the light-condensing elements is smaller than the pixel size, and in a boundary region between pixel regions corresponding to microlenses, respectively, the pitch between the light-condensing elements is larger than the pixel size.

A photon-based model of individual cones in the human eye perceiving images on digital display devices is presented. Playback of streams of pixel video data is modeled as individual photon emission events from within the physical substructure of each display pixel. The generated electromagnetic wavefronts are refracted through a four surface model of the human cornea and lens, and diffracted at the pupil. The characteristics of each of several million photoreceptor cones in the retina are individually modeled by a synthetic retina model. Photon absorption events map the collapsing wavefront to photon detection events in a particular cone, resulting in images of the photon counts in the retinal cone array. The rendering systems used to generate sequences of these images account for wavelength dependent absorption in the tissues of the eye and the motion blur caused by slight movement of the eye during a frame of viewing.

When compressing continuous tone bit map image data, the image compression section of the image compressing apparatus segments the continuous tone bit map image data into bit map image data for lossy compression, index image data for lossless compression and bit map image data for lossless compression based on pixel identification information data. The lossy compression section of the image compression section performs lossy compression process according to the JPEG method for the bit map image data for lossy compression, and the first lossless compression section thereof performs lossless compression process according to the JBIG method for the index image data for lossless compression. Furthermore, the second lossless compression section thereof performs lossless compression process according to the JPEG-LS method for the bit map image data for lossless compression.

Provided is an electroconductive member that can demonstrate stable performance for a long period of time with an electric resistance value being hardly changed even by electrical conduction for a long period of time.An electroconductive member has a conductive mandrel, and a conductive layer provided on the outer periphery of the conductive mandrel. The conductive layer includes an organic polymeric compound as a binder, and a conductive particle dispersed in the organic polymeric compound, and the particle includes an organic-inorganic hybrid polymer having a specific structure.

A region of interest is set within an image, the region of interest is tracked along motion of an object marked out within the image, and coding is performed in a manner that image quality differs between the region of interest and a region other than the region of interest. A wavelet transform unit applies a low-pass filter and a high-pass filter in the respective x and y directions of an original image, and divides the image into four frequency sub-bands so as to carry out a wavelet transform. A quantization unit quantizes, with a predetermined quantizing width, the wavelet transform coefficients outputted from the wavelet transform unit. A motion detector detects the motion of an object. A ROI setting unit moves a ROI region according to this motion of an object. In the case of moving images where a viewpoint changes, the background may be separated from the object and then the ROI region may be moved according to the motion of the object and the motion of the background.

Maximum and minimum aperture sizes are regulated with regard to a diaphragm in order to secure predetermined optical capability in an optical unit which includes a taking lens and the diaphragm. In a normal taking, the diaphragm is used within a normal taking range from the maximum to the minimum aperture sizes. In the present invention, an aperture size which is larger than the maximum size and a size which is smaller than the minimum size (extra aperture size or extra small size) are respectively set at outside the range that secures the capability. The aperture sizes of the diaphragm at outside the specified range are used at least for one of the following: automatic exposure (AE) adjustment, auto focus (AF) adjustment, electronic zoom, displaying a moving image, taking for recording the moving image, and taking under a low resolution by thinning out pixels.

A liquid crystal display device of at least one embodiment of the present invention causes an image to be displayed on a display panel in response to an image signal including image data (first image data) for warning display and image data (second image data) for general display. The image data for warning display has a gradation value exclusively used for the image data for warning display. The liquid crystal display device of at least one embodiment includes an image data identification section which identifies a type of image data by judging whether or not the image data has the gradation value exclusively used for the image data for warning display; and a gradation calculator (gradation conversion section) which carries out a conversion of gradation value with respect to the image data so that luminance of a displayed image is reduced in a case where ambient brightness declines.

A client server system S includes a plurality of client terminal devices 3 capable to connect with display device 4, whose screen resolution is HD or SD, and a server device which provides image information to the plurality of client terminal devices s through wireless network N. The server device 1 is structured to include a sendable resolution determining program 1134 to make CPU 111 determine whether to convert HD image information into SD image information or not, and an image information sending program 1135 to make the CPU 111 send SD image information attached with SD information to the plurality of client terminal devices 3.

An image signal processing method and system, which can greatly reduce the data size upon transmitting an image signal or storing the signal in a storage medium, and can obtain a high-quality image by preventing image quality after color processing from deteriorating. According to the method for processing an image signal output from an image sensing element, a compression step of compressing the image signal and an expansion step of expanding the compressed image signal are executed without executing color processing for executing at least white balance correction or correction, and the color processing is executed after completion of the compression and expansion steps, thereby preventing occurrence of block noise and high-frequency noise associated with compressing / expanding image data after the color processing of the image signal.