486results about How to "Reduce image quality" patented technology

A beam scanning-type display device used as a head-mounted display (HMD) or a head-up display (HUD) includes a light source (101) which emits a beam, a scanning unit (103) which performs scanning using the beam emitted from the light source (101), a deflecting unit (104) which deflects the beam used for the scanning by the scanning unit (103) in the direction toward an eye of a user, and a wavefront shape changing unit (102) which changes the wavefront shape of the beam from the light source (101) so that the beam spot size falls within the predetermined allowable range, and emits the beam to the wavefront shape changing unit (102).

In one embodiment, the invention relates to an apparatus for increasing the repetition rate in a light source. The apparatus includes a first optical coupler comprising a first arm, a second arm and a third arm; a first mirror in optical communication with the second arm of the first optical coupler; and a first optical delay line having a first end in optical communication with the third arm of the first optical coupler and a second end in optical communication with a second mirror, wherein light entering the first arm of the first optical coupler leaves the first arm of the first optical coupler either delayed by an amount (τ) or substantially undelayed.

A vehicle navigation system uses prerecorded intersection images to more quickly and efficiently acquaint the driver with approaching intersections and other points of interest as part of a navigation system. The pre-recorded images are recorded, selected and processed with header information that associates the selected landmark images of approaching intersections and other points of interest to spatial nodes based on runs defined by routing information in the navigation system. The runs defined by the routing information correlate to a path or road segment to be traveled with the spatial nodes defining a transition point from one run to another, such as a roadway intersection where a turn is required to follow the routing information. Preferably, a multiplicity of recorded images are analyzed from a road segment to select a set of images that correspond to a plurality of distances from an approaching intersection, for example, where the selected images include a view of relevant visual information, such as road sign images, associated with the intersection.

An image pickup apparatus capable of increasing the number of pixels in a reproduced image without a decline in image quality of a picked up image is provided. The image pickup apparatus includes: an image pickup lens section including an aperture stop, the aperture stop including a plurality of aperture sections; an image pickup device obtaining image pickup data on the basis of light received; and a microlens array section being arranged on the focal plane of the image pickup lens section between the image pickup lens and the image pickup device, and including one microlens for a plurality of pixels of the image pickup device.

Provided are an apparatus and method for driving a 2-dimensional (2D) / 3-dimensional (3D) switchable display for improving the quality of image. The apparatus for driving a 2D / 3D switchable display includes: an image mode determination unit determining whether input image signals of continuous frames are in a 2D mode or 3D mode; and an over-driving control unit over-driving the input image signal of a current differently according to the determined image mode. According to the apparatus and method, the response time in each of the 2D mode and the 3D mode can be increased, while motion blur and cross-talk effects can be decreased, thereby improving the quality of image.

A method of particle beam lithography includes selecting at least two cell patterns from a stencil, correcting proximity effect by dose control and by pattern modification for the at least two cell patterns, and writing the at least cell two patterns by one shot of the particle beam after proximity effect correction (PEC).

The invention relates to a method of and a device for the formation of a three-dimensional image data set of a periodically moving body organ (11) of a patient (5) by means of an X-ray device (1) which includes an X-ray source and an X-ray detector (3), a motion signal (H, B) which is related to the periodic motion of the body organ (11) being measured simultaneously with the acquisition of the projection data sets (D0, D1, . . . , D16). In order to improve such a method or such a device, notably in order to improve the construction and to reduce the time required for data processing while keeping the radiation dose for the patient as small as possible and while ensuring an as high as possible image quality, the invention proposes to acquire the projection data sets (D0, D1, . . . , D16) necessary for the formation of the three-dimensional image data set successively from different X-ray positions (p0, p1, . . . , p16) which are situated in one plane, to control the X-ray device by means of the motion signal (H, B) in such a manner that a projection data set (D0, D1, . . . , D16) is acquired during a low-motion phase of the body organ (11) in each X-ray position (p0, p1, p16) required for the formation of the three-dimensional image data set, and to use the projection data sets (D0, D1, . . . , D16) acquired during the low-motion phase for the formation of the three-dimensional image data set.

There is described image-processing methods and image processing apparatus, which enable sharpness, scaling coefficients, and image quality to be adjusted with minimum image noise and minimum image quality deterioration and at high processing speed. One of the image-processing methods for creating processed image data by applying a spatial-filtering processing to source image data, comprises the steps of: setting a predetermined upper-limit value for a variation amount of the source image data, before performing an image-conversion processing through which the source image data are converted to the processed image data by applying the spatial-filtering processing; and performing the image-conversion processing for the source image data within a range of the variation amount limited by the predetermined upper-limit value. In the above, a plurality of spatial-filtering processing(s), characteristics of which are different each other, are performed either simultaneously in parallel or sequentially one by one in the image-conversion processing.

A view angle control element capable of limiting a view angle without degrading image quality (front quality) when seen from a front side and a display device provided with the view angle control element are provided. A liquid crystal display device (1) includes a liquid crystal panel (10), and a view angle control film (20) that controls a view angle of the liquid crystal panel (10). The view angle control film (20) is a laminated film including at least a liquid crystal film (21) and a linearly polarizing plate (22). In the liquid crystal film (21), liquid crystal molecules are solidified while being aligned with major axes tilted in a predetermined azimuth angle direction from a normal direction of a film surface. The linearly polarizing plate (22) of the view angle control film (20) and the linearly polarizing plate (14) of the liquid crystal panel (10) are placed so that polarization transmission axes thereof cross a major axis direction of the liquid crystal molecules when seen from the normal direction.

The invention relates to a robust real-time three-dimensional (3D) reconstruction method based on a consumer camera, and aims to solve the problems of high calculation cost and inaccurate and incomplete reconstructed model in the existing method. The method comprises the following steps: 1, estimating the camera pose of each video frame under a scene coordinate system on the basis that a current video frame of a camera is used as input in the camera moving process; 2, selecting an optimized key frame in the video frame for depth estimation; 3, estimating the depth information of each video frame by adopting a quick robust depth estimation algorithm to obtain a depth map of each video frame; and 4, converting the depth map of each video frame into an unblind distance field, parallel executing weighted average of TSDF on voxel, incrementally fusing the depth map of each video frame, and constructing a triangular mesh surface by a Marching cubes algorithm. The method is applied to the field of image processing.

An image display device includes an image generating device, a light guide unit which includes a light guide plate and first and second deflection sections, and a light beam extension device which extends light incident from the image generating device, along a Z direction when an incident direction of light incident on the light guide plate is set to be an X direction and a direction of propagation of light in the light guide plate is set to be a Y direction, and emits the light to the light guide unit, wherein the light beam extension device includes a first reflecting mirror on which light from the image generating device is incident, and a second reflecting mirror which emits light incident from the first reflecting mirror to the light guide unit, and each of the first and second reflecting mirrors has a light reflecting surface having a sawtooth-shaped cross-sectional shape.

A radiographic image conversion panel includes a support; and a photostimulable phosphor layer provided on the support. A photostimulable phosphor is formed on the support by a vapor phase deposition method and then, heat treatment is performed at a temperature of from 80° C. to 300 ° C.

A display device capable of improving the view angle characteristics without deteriorating the outside light contrast and a display unit using it are provided. The display device includes a first electrode, an organic layer including a light emitting lay and a second electrode sequentially over a substrate, and having a resonator structure in which light generated in the light emitting layer is resonated between a first end and a second end. An end face of the first electrode on the light emitting layer side is the first end having a step shape. A distance adjustment layer that fills in the step shape and has a flat surface on the second electrode side is provided between the first electrode and the second electrode, and thereby the second end is planarized, and an optical distance between the first end and the second end is varied according to the step shape.

A compact and lightweight display device having an image pickup function and a two-way communication system which can shoot an image of a user as an object and display an image at the same time without degrading image quality by disposing a semi-transmitting mirror or the like which blocks an image on the display screen (display plane). The display device having the image pickup function includes a display panel capable of transmitting visible light at least and arranging display elements which can be controlled by voltage or current, and an image pickup device disposed around the display panel. The image pickup device is input with data of an image of a user or the like by a reflector, or equipped with a fiberscope bundling optical fibers.

An image processing apparatus includes an image correction processing unit configured to correct an input image so as to generate a corrected image and a super-resolution processing unit configured to receive the corrected image generated by the image correction processing unit and increase a resolution of the corrected image through super-resolution processing so as to generate a high-resolution image. The image correction processing unit performs at least one of a time-direction noise removal process, a space-direction noise removal process, a compression noise removal process, and an aperture control correction process.

In a current measurement period set in a pause period, a display device of the present invention applies measurement voltages to data lines (S1 to Sm) and measures currents outputted to monitoring lines (M1 to Mm) from m pixel circuits (18), and then applies data voltages generated corresponding to video signals to the data lines (S1 to Sm).

A method for enhancing the contrast of video pictures that includes the steps of receiving an input video signal; extracting a picture from said input video signal; determining an active window for said picture; calculating a histogram for luminance values of pixels in said active window of said picture; determining characteristics of said histogram; selecting one suitable mapping function from a plurality of mapping functions based on the determined characteristics of said histogram; and mapping the luminance value of each pixel in said picture in accordance with said selected mapping function.

A solid-state imaging device is provided with a pixel region in which a plurality of pixels including photoelectric conversion films are arrayed and pixel isolation portions are interposed between the plurality of pixels, wherein the photoelectric conversion film is a chalcopyrite-structure compound semiconductor composed of a copper-aluminum-gallium-indium-sulfur-selenium based mixed crystal or a copper-aluminum-gallium-indium-zinc-sulfur-selenium based mixed crystal and is disposed on a silicon substrate in such a way as to lattice-match the silicon substrate concerned, and the pixel isolation portion is formed from a compound semiconductor subjected to doping concentration control or composition control in such a way as to become a potential barrier between the photoelectric conversion films disposed in accordance with the plurality of pixels.

A method and an apparatus for creating a stereo image adaptively according to the characteristic of an input image and a method and an apparatus for reproducing the created stereo image are provided. The method for creating a stereo image includes selecting one of a left view image and a right view image that constitute the stereo image and measuring the directivity of high frequency components of the selected image, and synthesizing the left view image and the right view image into a stereo image in a format depending on the measured directivity.

A method of driving a display panel in which a voltage polarity reverse cycle of a data signal is three or more scan periods, and multiple scan lines are driven by switching between a first and a second scan orders by a predetermined period. The method includes setting a display pattern as a first maximum current pattern, the display pattern in which the multiple scan lines are driven in the first scan order and a number of charge and discharge of the data signal becomes a maximum number, and specifying that the number of charge and discharge of the data signal when displaying the first maximum current pattern in the second scan order is to be ½ of that of the data signal when displaying the first maximum current pattern in the first scan order. Further, the voltage polarity reverse cycle for specifying the first and the second scan orders is one frame period.

A solid-state image device is provided which includes: a photoelectric conversion portion which obtains a signal charge by photoelectric conversion of incident light; a pixel transistor portion which outputs a signal charge generated by the photoelectric conversion portion; a peripheral circuit portion which is provided at the periphery of a pixel portion including the photoelectric conversion portion and the pixel transistor portion and which has an NMOS transistor and a PMOS transistor; a first stress liner film which has a compressive stress and which is provided on the PMOS transistor; and a second stress liner film which has a tensile stress and which is provided on the NMOS transistor. In the solid-state image device described above, the photoelectric conversion portion, the pixel transistor portion, and the peripheral circuit portion are provided in and / or on a semiconductor substrate.

The invention, which belongs to the computer application technology field, relates to a digital fog effect filter method based on dark primary color channel prior principle. A model in which an atmospheric scattering model is applied for defogging in haze weather and a dark primary color channel prior principle is employed to carry out operation on an image, wherein the operation including dark primary image extraction, atmospheric light estimation, transmissivity conversion, optimization compensation and fog effect simulation and the like. According to the invention, a solution scheme is proposed for limitation of an exiting model; on the basis of a perspective concept, a traditional defogging method is changed into a fog effect filter method to obtain foggy / fog-free scenes with different fog effects, so that defects existing in the prior art are overcome. According to the method, only a physical model and data calculation are needed to carry out correction operation on the physical model, thereby substantially reducing time and space and improving generality of the method.

The present invention provides for the dynamic video equalization of images. Face tracking is used to identify a portion of an image corresponding to a human face. Those areas of the image identified as corresponding to a human face are optimized as compared to other areas of the image. Optimization is performed by allocating a greater number of image parameters to the area of the image corresponding to a human face than are allocated to other areas of the image. Accordingly, the portion of an image containing the human face is of higher quality as compared to other portions of the image.

Apparatus for radiation therapy combines a patient table, an MRI and a radiation treatment apparatus mounted in a common treatment room with the MR magnet movable through a radiation shielded door to an imaging position. An initial MR image and an initial X-ray image is used to generate an RT program for the patient to be carried out in a plurality of separate treatment steps. Before carrying out the procedure, a registration step is performed using a phantom by which X-ray images are registered relative to MR images to generate a transformation algorithm required to align the MR images of the part of the patient relative to the X-ray images. Prior to each separate treatment step a current MR image of the part of the patient is obtained and the transformation algorithm data is used from the current MR image is used in guiding the RT treatment step.

A printing apparatus can reduce degradation in print quality of a printed image, notably in a highlight portion or an intermediate gradation portion, in the case where the image is printed by forming dots of a plurality of sizes. Specifically, data causing larger and smaller cyan ink droplets, respectively, to be ejected is independently subjected to a conversion to n-value process. Thus, the data for larger ink droplets is present in a portion of printing data which corresponds to the highlight portion or intermediate gradation portion of the image. During printing, larger dots are formed in this area, thereby making it difficult to perceive possible stripes caused by the offset of the positions at which smaller droplets impact a sheet.

An image display apparatus including an image display panel includes: a first color filter for passing light of a first primary and first auxiliary pixels for displaying the first primary; a second color filter for passing light of a second primary and second auxiliary pixels for displaying the second primary; a third color filter for passing light of a third primary and third auxiliary pixels for displaying the third primary; and fourth auxiliary pixels for displaying a fourth color; the first auxiliary pixels, the second auxiliary pixels, the third auxiliary pixels, and the fourth auxiliary pixels being arranged in a two-dimensional matrix, and a light shielding region disposed at least partly around the peripheral edge of each of the fourth auxiliary pixels.

A plurality of detector rings in which detectors arranged densely or spatially in a ring shape or in a polygonal shape are arranged, with an open space kept in the body axis direction, coincidences are measured for some of or all of detector pairs connecting the detector rings apart from the open space to perform three-dimensional image reconstruction, thereby imaging the open space between the detector rings as a tomographic image. Therefore, the open space is secured, with the deteriorated quality of an image suppressed, thus making it possible to easily gain access to a patient under PET scanning from outside a gantry and also provide irradiation of particle beams for cancer treatment as well as X-ray CT scanning.