705results about How to "Improve image quality" patented technology

In an image-processing method and apparatus, dots forming a step-change part of an outline of an image of characters and/or graphics which image is subjected to half-tone processing are detected, and dots surrounding the detected dots forming the step-change part are transformed into respective dot data each having a size that is smaller than a size of the detected dots forming the step-change part. In the image-processing method and apparatus, one of different transformation methods is selected according to an inclination of the outline in order to produce the dot data in the transforming.

A six element fisheye objective lens comprising a first lens element having a convex object surface facing the object and a concave image surface facing the image plane, a second lens element having a convex object surface facing the object and a concave image facing the image plan. A third lens element has a positive power. A positively powered lens group has a positively powered cemented doublet lens pair. A singlet lens element has a positive power, The lens group has an object surface facing the object and an image surface facing the image. The ratio of the total track to the focal length satisfies the condition that 8<TT/fo<15. The fisheye objective lens has an optical axis, the first, second, third and the lens group being coaxially aligned on the optical axis.

An active organic electroluminescence display panel module comprising a substrate, a plurality of organic light-emitting devices, a light-emitting device driving unit and a temperature sensor unit are provided. The light-emitting device driving unit is electrically connected to the organic light-emitting devices for driving them. The temperature sensor unit is disposed on the substrate for sensing the temperature of the active organic electroluminescence display panel. The temperature sensor unit is also electrically connected to the light-emitting device driving unit for providing a signal to the light-emitting device driving unit in response to the sensed temperature. Accordingly, the light-emitting device driving unit can adjust the driving voltage of the organic light-emitting devices in the active organic electroluminescence display panel to reduce overall power consumption and provide an accurate grayscale to improve the quality of displayed images.

To provide a display device and a driving method thereof, where variations in the threshold voltage of transistors can be compensated and thus variations in luminance of light-emitting elements can be suppressed. In a first period, initialization is performed; in a second period, a voltage based on the threshold voltage of a first transistor is held in first and second storage capacitors; in a third period, a voltage based on a video signal voltage and the threshold voltage of the first transistor is held in the first and second storage capacitors; and in a fourth period, voltages held in the first and second storage capacitors are applied to a gate terminal of the first transistor to supply a current to a light-emitting element, so that the light-emitting element emits light. Through the operation process, a current obtained by compensating variations in the threshold voltage of the first transistor can be supplied to the light-emitting element, thereby variations in luminance can be suppressed.

Systems and methods for improving the quality of ultrasound images made up of a combination of multiple sub-images include giving more weight to sub-image information that is more likely to improve a combined image quality. Weighting factor information may be determined from the geometry (e.g., angle or path length) of a location of one or more specific transducer elements relative to a specific point within a region of interest or a region of an image. In some embodiments, any given pixel (or other discrete region of an image) may be formed by combining received echo data in a manner that gives more weight to data that is likely to improve image quality, and/or discounting or ignoring data that is likely to detract from image quality (e.g., by introducing noise or by increasing point spread).

During use, a plate-form part 5 which is constructed from an optical material and which corresponds to a spectacle lens is positioned in front of the eye of the user which is disposed in the vicinity of the exit pupil P of an image combiner 1. The combiner 1 causes light from an image display element 2 to be superimposed on light that is transmitted through the plate-form part 5 so as to pass through the thickness of the plate-form part 5 from the front of the plate-form part 5, and conducts this light to the eye. The light from the image display element 2 reaches the eye of the user after being diffracted and reflected by a reflective type HOE 6 inside the plate-form part 5. The wavelength at which the diffraction efficiency shows a maximum value when the chief rays that are emitted from the center of the display part of the image display element 2 are diffracted and reflected by the reflective type HOE 6 and the wavelength at which the diffraction efficiency shows a maximum value when the chief rays that are emitted from the peripheral portions of the display part in a specified direction are diffracted and reflected by the reflective type HOE 6 are substantially different. As a result, it is possible to improve the image quality of the display images that are obtained in cases where the center of the pupil of the eye of the user deviates from the center of the exit pupil of the image combiner.

A method for capturing an improved archival image using an electronic image capture device having a flash, comprising: capturing at least two preview images of a scene at different capture times using the image capture device; determining a scene brightness; using a processor to analyze the captured preview images to determine a motion velocity for the scene; determining a flash exposure setting and an ambient exposure setting responsive to a ratio between the determined scene brightness and the determined motion velocity; and capturing an archival image using the determined flash exposure setting and the determined ambient exposure setting.

A sonar transducer assembly includes a housing mountable to a water craft capable of traversing a surface of a body of water. The sonar transducer assembly includes a linear downscan transmit/receive transducer element positioned within the housing, aimed downwardly, and configured to transmit sonar pulses in the form of a fan-shaped beam perpendicular to a plane of the surface of the water, and further configured to receive sonar returns from the sonar pulses and convert sound energy of the sonar returns into downscan sonar return data. The sonar transducer assembly also includes at least one sidescan receive-only transducer element positioned within the housing, aimed outwardly and downwardly, and configured to receive sonar returns from the sonar pulses and convert sound energy of the sonar returns into sidescan sonar return data.

A cold cathode field emission device comprising (a) a cathode electrode formed on a supporting substrate, and (b) a gate electrode which is formed above the cathode electrode and has an opening portion, and further comprising (c) an electron emitting portion composed of a carbon film formed on a surface of a portion of the cathode electrode which portion is positioned in a bottom portion of the opening portion.

The invention discloses a virtual viewpoint synthesis method based on depth and shade information, comprising steps of: (1) defining a 3D plotting equation of a plotting method based on a depth image; (2) according to the spatial positions of the reference viewpoints and the virtual viewpoints, forming a pixel plotting sequence; (3) adopting a horizontal half pixel plotting method based on a depth image, referring to the main viewpoint, plotting an image of the virtual viewpoints; (4) according to the shade information of the auxiliary viewpoints, processing shade compensation on the virtual viewpoint image, to attain a virtual viewpoint image of high resolution; (5) converting the image of high resolution to attain an image of original resolution; (6) adopting an asymmetry linear interpolation method to process residual cavity compensation; (7) processing block effect smoothing to attain the virtual viewpoint synthesis image of high quality. The invention is suitable for parallel optical axis camera array mode, wherein the virtual viewpoints for synthesis are between the main viewpoint and the auxiliary viewpoints. Therefore, the invention can effectively synthesize virtual viewpoint images of high quality.

The present invention is to provide a method for enabling an electronic device to read at least two images taken from different positions by a digital camera mounted with a fisheye lens; acquire internal and external parameters of the fisheye lens corresponding to the different positions as well as the vignetting coefficient for eliminating the vignetting on the images; perform exposure compensation and color calibration on the images for letting them have consistent brightness and hues; project the images onto a spherical surface and spread out the spherical surface to form a two-dimensional spread-out picture based on the parameters; register the overlapped images projected on the two-dimensional spread-out picture and adjust the offset of corresponding pixels thereof, register and adjust the brightness and hues of the overlapped images into consistency; and fuse overlapped images together to produce a 360-degree spherical panorama without having any noticeable stitching seam between the images.

The invention discloses an intelligent video monitoring system based on behavior recognition. The system can automatically monitor threats and carry out detection, track, classification and object analysis on a goal scene. The system is composed of five parts: a video collection module, a video treatment module, a behavior recognition module based on a Bayesian classification algorithm, an upper computer management platform and an alarm module. In the invention, an image treatment technology is adopted so that the image quality is improved; a moving object is separated through a method based on threshold segmentation and a background environment selection function is added; behavior recognition and anomaly detection are carried out through a behavior recognition rule based on a Bayesian classification method; the method is simple, the classification accuracy is high, and the classification speed is high; and the video monitoring system is controlled via an upper computer operating system so as to be convenient to operate and easy to expand.

Provided is a capacitive touch panel, including: a plurality of coordinate detection electrodes (XP1, XP2, YP2) for detecting X-Y position coordinates; a first substrate (1) including the plurality of coordinate detection electrodes; and a second substrate (6) disposed to be opposed to the first substrate, in which: one of the first substrate and the second substrate includes an elastic layer lower (5) in rigidity than the second substrate and a conductive layer (ZP) having conductivity; the elastic layer and the conductive layer are disposed between the plurality of coordinate detection electrodes and the second substrate; a space between the first substrate and the second substrate defined by a plurality of nonconductive spacers (4); and an antireflective layer is formed on at least one of an interface between the space and the first substrate and an interface between the space and the second substrate.

The invention provides methods of enhancing tissue sample images by filtering luminance values from an input image and transforming the filtered values to produce an enhanced image for use in diagnostic applications. Preferred methods of the invention provide image enhancement by filtering luminance values of an image that correspond to sample regions that are obstructed or are otherwise not of diagnostic interest, and applying a mathematical transformation based on luminance values from regions that are not filtered out. In this way, image correction is substantially based on portions of the image that are of diagnostic relevance.

Disclosed are a system and method are directed to efficient image based color calibration and improving color consistency performance, and more particularly to the use of continuous or dynamic calibration performed during printing and enabling adjustment on a page by page basis.

An image-forming apparatus includes a mechanism that controls the replenishment amount of toner to a predetermined value. A toner cartridge holds toner therein. The toner cartridge is detachably attached to a process cartridge. The process cartridge has a toner reservoir that holds the toner supplied from the toner cartridge, a photoconductive drum and a developing roller that supplies the toner to the photoconductive drum. A valve is located between the toner cartridge and the process cartridge and supplies the toner from the toner cartridge to the process cartridge. When the valve rotates, the valve supplies a volume of toner in such a way that the toner in the toner reservoir fills a volume not more than a predetermined fraction of a maximum capacity of the toner reservoir.

A SOI substrate includes a silicon substrate, a silicon oxide layer arranged on the silicon substrate, a silicon layer arranged on the silicon oxide layer, a gettering layer arranged in the silicon substrate, and a damaged layer formed of an impurity-doped region arranged in the silicon oxide layer.

An image processing device that sets weighting factors for captured image data and interpolation image data region by region based on in-focus state information indicating in-focus states of the respective regions, and synthesizes the captured image data and the interpolation image data based on the weighting factors. A weighting factor for interpolation image data in an in-focus region is smaller than a weighting factor for interpolation image data in at least a part of a region other than the in-focus region.

A speed doubling circuit receiving display data in one frame period and outputting field A display data and field B display data in one frame period. A field conversion circuit converts the field A display data to have a highest gray-scale if the display data has a high gray-scale, and converts the field B display data to have a lowest gray-scale if the display data has a low gray-scale. Between the speed doubling circuit and field conversion circuit, an emphasis circuit is disposed which emphasizes each of the field A display data and field B display data in accordance with the display data one frame period before and the display data in the present frame period.

A solid-state imaging device includes a first electrode, a second electrode disposed opposing to the first electrode, and a photoelectric conversion layer, which is disposed between the first electrode and the second electrode and in which narrow gap semiconductor quantum dots are dispersed in a conductive layer, wherein one electrode of the first electrode and the second electrode is formed from a transparent electrode and the other electrode is formed from a metal electrode or a transparent electrode.

Disclosed herein are three-dimensional free space imaging systems and related methods employing a dynamic stereoscopic image projection system in combination with a optic module comprising a doublet of Fresnel lenses. The dynamic projector systems calculating derived flat image information for each projector based upon inputted stereopair images and information regarding the projector elements and optic module. In preferred embodiments of the present invention, the projection system uses an image computational device that employs a neural network feedback calculation to calculate the appropriate flat image information and appropriate images to be projected on the screen by the projectors at any given time.

There is explored the structure of an illumination device having a board, an interconnection and a reflector plate arranged on the aforementioned board, an LED element connected to the aforementioned interconnection, and a transparent resin part sealing the aforementioned LED element; wherein the aforementioned transparent resin part has a recess in the top face and the aforementioned recess has a shape taking as the major axis some axial direction in the plane of the aforementioned board. Further, the structure of a liquid crystal display device using this illumination device is explored. With the illumination device or a liquid crystal backlight light source module, it is possible to implement a light source for implementing an area control function and having the required homogeneous brightness and chromaticity distribution.

A frame rate controller method and system are provided. Aspects the exemplary embodiment include a data separator responsive to receiving display data comprising frames of digital pixel data for separating the display data into an integer part comprising upper bits of the display data, and a fraction part (Din_f) comprising lower bits of the display data; a high/low generator responsive to receiving the integer part for generating a data out high value and a data out low value, wherein the data out high value equals the integer part plus one and the low value equals the integer part; a multiplier responsive to receiving a frame counter value (Fc) and the Din_f for multiplying and outputing a first multiplication result of Din_f×(Fc+1), and a second multiplication result of Din_f×Fc; a pixel sequence LUT containing a pattern of sequence numbers, wherein the pixel sequence LUT outputs one of the sequence numbers based on horizontal pixel counter and vertical line counter values; a comparator for generating a code based on a comparison of the sequence number output from the pixel sequence LUT and the first and second values output from the multiplier, wherein the code comprises a first value and a second value; and a multiplexer for receiving the code and the data out high value and the data out low value from the high/low generator, and outputting the data out high value if the code equals the first value, and outputting the data out low value if the code equals the second value.

The present invention provides a system and method of removing heat from an MR imaging device while maintaining internal and external temperatures below maximum operating limits, thereby enabling higher power applications for faster imaging with improved image quality as well as, allowing longer scan times for interventional procedures. The system includes a vacuum chamber housing the gradient coils and a vacuum pump connected thereto to regulate the pressure and humidity within the chamber. A heat exchanger, coolant pump, and controller are provided to regulate the temperature of coolant designed to dissipate heat from the gradient coils in response to at least one temperature sensor.

An ultrasonic probe and a transmitter/receiver scan a 3D region using ultrasonic beams by raising the scanning line density of the transmission of ultrasonic beams for a region of interest compared to the scanning line density of the transmission of ultrasonic beams for regions other than the region of interest among the 3D regions. An image-generating part generates ultrasonic-image data of the 3D region, based on the received beams that have been obtained by the scan.

A solid-state imaging device with unit pixels which have a photoelectric conversion element, an electric charge transferring/accumulating unit with multiple levels able to transfer electric charge generated in the photoelectric conversion element and accumulate the electric charge, and an electric charge detection unit that holds the electric charge transferred from the photoelectric conversion element, where, after resetting the photoelectric conversion element, all unit pixels simultaneously transfer signal electric charges, which are generated in the photoelectric conversion element during continuous exposure times of which each has a different duration, to the electric charge transferring/accumulating units and accumulate the signal electric charges in the different respective electric charge transferring/accumulating units, and in units of one or more pixels, the signal electric charges is transferred to the electric charge detecting unit and a plurality of signals which respectively corresponds to the plurality of signal electric charges is read out.

A large size element measuring device based on the machine vision comprises a chassis, a large calibration block and a small calibration block, wherein the length ratio of the large calibration block and the small calibration block is 3:2-2:1, an L-shaped mobile station is connected on the chassis in a sliding way, a support bar is connected on the vertical arm of the L-shaped mobile station in a sliding way, and the sliding direction of the L-shaped mobile station is perpendicular to the sliding direction of the support bar, a rotary block is rotatably connected on the support bar, and the rotational motion plane of the rotary block is perpendicular to a plane which is decided by the sliding direction of the L-shaped mobile station and the sliding direction of the support bar, a camera support plate is rotatably connected on the rotary block, and the rotational motion plane of the camera support plate is perpendicular to a plane which is decided by the sliding direction of the L-shaped mobile station and the sliding direction of the support bar, a camera is arranged on the camera support plate, a translation device is arranged on the chassis, a white background plate is arranged on the translation device, and is located under the camera, and a steel rule for observing the movement distance of a tray is arranged on the chassis.

An optical lens system for taking image comprises: in order from the object side to the image side: an aperture stop; a first lens element with positive refractive power having a convex object-side surface, a second lens element with negative refractive power; a third lens element with positive refractive power having a concave object-side surface and a convex image-side surface; a plastic fourth lens element with negative refractive power having a concave image-side surface, the object-side and the image-side surfaces of the fourth lens element being aspheric. A focal length of the optical lens system for taking image is f, a focal length of the first lens element and the second lens element combined is f12, and they satisfy the relation: 0.98<f/f12<1.82.

Translating, multifocal contact lens pairs with optical power zones which are dissimilar between the first and second lenses of the pair are utilized for correcting presbyopia in the wearer. Each lens may differ in segment height, power, asphericity, shape, orientation and/or inset of the optical power subzones thereby providing clear and comfortable vision at far, intermediate and near distances.

A driving circuit of a liquid crystal display device and a method for driving the same, which are capable of reducing manufacturing cost of the liquid crystal display device and reducing a luminance deviation so as to improve image quality, are disclosed. The driving circuit of the liquid crystal display device includes an LED backlight which includes a plurality of LED modules arranged in a plurality of division areas and generates light, an internal photosensor which is mounted in any one of the plurality of division areas, for detecting a luminance value, a controller which generates and outputs a plurality of control signals for changing respective luminance values of the plurality of division areas according to the luminance value detected by the internal photosensor, and a plurality of LED drivers which drive the plurality of LED modules according to the plurality of control signals.