201results about How to "Avoid image distortion" patented technology

A wide-angle lens system comprises, sequentially from the object side to the image side: a first lens element, a second lens element, a third lens element, an aperture and a fourth lens element. If the field of view of the wide-angle lens system is as high as 140 degrees, the extreme distortion of the image edge can be prevented with only four lens elements, and the image has a high sharpness. Therefore, it is very suitable for use in the monitor and vehicle-related lens system.

An organic light-emitting display device which is transparent by improving a transmittance in transmitting regions and which reduces a voltage drop in an opposite electrode comprises: a substrate having a transmitting region and pixel regions separated from each other by the transmitting region; thin film transistors positioned on the substrate and disposed in the pixel regions, respectively; a passivation layer covering the thin film transistors, formed in the transmitting region and the pixel regions, and having a first opening formed in a location corresponding to at least a portion of the transmitting region; pixel electrodes formed on the passivation layer so as to be electrically connected to the thin film transistors, respectively, located in the pixel regions, and disposed so as to overlap and cover the thin film transistors, respectively; an opposite electrode facing the pixel electrodes, formed so as to be able to transmit light, and located in the transmitting region and the pixel regions; an organic emission layer interposed between the pixel electrodes and the opposite electrode so as to emit light; and a conduction unit formed of a conductive material, disposed so as to overlap with the first opening, and contacting the opposite electrode.

A display device includes: i) a substrate member having a transparent area and a plurality of pixel areas, the pixel areas being spaced apart from each other along a first direction and a second direction, the transparent area located between the pixel areas, the second direction being perpendicular to the first direction; and ii) an emission layer located at each of the pixel areas. Among the plurality of pixel areas, a width of the transparent area along the first direction between two pixel areas varies along the second direction. The first direction may be the horizontal direction of a screen realized by the substrate member, the second direction may be a vertical direction, and the emission layer may have a width along the horizontal direction that varies along the vertical direction.

The present invention discloses a dual array detector module adapted to radiation-imaging, comprising: a first detector array consisting of a plurality of first detectors and arranged on a first surface of a heavy metal plate; a second detector array consisting of a plurality of second detectors and arranged on a second surface of the heavy metal plate, the second surface is opposite to the first surface; and a mounting frame, in which the first detector array and the second detector array arranged on the first and second surfaces of the heavy metal plate respectively are mounted in the mounting frame. The dual array detector module according to the present invention is simple in structure and convenient for mounting and maintenance, so that a great economic benefit can be obtained by improving the structure simply and increasing a little of investment.

A photosensitive composition having an extremely constant photosensitivity distribution relative to an exposure light having a wavelength of 400 nm to 410 nm, and excelling in pattern reproductivity, suppressing variations in pattern formation; a pattern forming material and a photosensitive laminate with the photosensitive composition laminated thereon; and a pattern forming apparatus and a pattern forming process.

The photosensitive composition contains a binder, a polymerizable compound, and a photopolymerization initiator; the photosensitive composition has a maximum spectral sensitivity in the wavelength range of 380 nm to 420 nm; the minimum exposure dose S₄₀₀ capable of forming a pattern at a wavelength of 400 nm of the photosensitive composition is 300 mJ/cm² or less; the minimum exposure dose S₄₁₀ capable of forming a pattern at a wavelength of 410 nm of the photosensitive composition is 300 mJ/cm² or less; and S₄₀₀ and S₄₁₀ satisfy the relation 0.6<S₄₀₀/S₄₁₀<1.6.

The invention discloses an image processing method and device and electronic equipment. The image processing method comprises that edge-maintaining filtering is carried out on a first image based on an original image to obtain a filtering image; and a second image based on the original image is fused with a third image based on the filtering image to obtain a fusion image. Thus, texture details ofthe original image can be maintained to certain extent while noise is eliminated and the edges are maintained, image distortion due to the fact that a flat area is too smooth can be avoided, the fusion image approaches the reality more, and the image quality can be improved effectively.

The invention relates to a novel binocular stereoscopic vision measuring device, which comprises two omnibearing vision sensors provided with the same imaging parameters, a connecting unit and a microprocessor which is used for performing three-dimensional stereoscopic vision reconstruction on images of the two omnibearing vision sensors, wherein the omnibearing vision sensors comprise hyperbolic mirror surfaces, upper covers, stand bars, transparent glass surfaces, supplementary lens frames and image units; the upper covers are arranged on the hyperbolic mirror surfaces; the stand bars are round platforms with thick upper parts and thin lower parts; upper ends of the stand bars are arranged inside small holes in bottom centers of the hyperbolic mirror surfaces, and lower ends of the stand bars are arranged inside mounting holes in the centers of the transparent glass surfaces which are embedded into the supplementary lens frames; the stand bars are perpendicular to the transparent glass surfaces; and the image units are positioned inside the supplementary lens frames. The novel binocular stereoscopic vision measuring device simplifies the complexity of calculation of stereo matching and so on, saves the operation of camera calibration, is convenient to perform feature extraction, is easy to realize stereo image matching, and finally achieves the aim of high-efficiency, real-time and accurate stereoscopic vision measurement.

The present invention relates to a camera module, and the present invention may comprise: a lens; a heating layer positioned on the lens so as to generate heat when power is supplied thereto; and a heating wire, which is positioned on the surface of the lens or of the heating layer, which generates heat when a current is supplied thereto from an external power supply, and which is electrically connected to the heating layer. The present invention comprises a heating wire, besides the heating layer that comprises a conductive material, and thus can reduce the time taken to supply a heating body with a current, and the reduced heating time accordingly enables rapid heating.

Provided is a rainfall and snowfall automatic observation method based on a parallel light large visual field. Data is transmitted to a terminal computer and corresponding software modules through utilization of an optical unit, a linear array imaging sensor array, a data acquisition control unit and a transmission unit. The optical unit comprises a large visual field collimator and an imaging system. The collimator comprises a collimated light source, a diaphragm and a collimating lens set. A high-brightness light emitting diode (LED) light source or a semiconductor laser is adopted as the collimated light source, and even and stable parallel light is obtained through a piece of ground glass, the diaphragm and the collimating lens set. An imaging camera lens is arranged in front of the outgoing end of the collimator, receives the parallel light emitted from the collimator, and projects the parallel light on a linear array imaging sensor after the parallel light is optically enlarged. The shape, the equivalent size, the falling end speed and other information of a single rainfall grain can be obtained, and therefore automatic identification of rainfall phenomenon and calculation of statistical characteristics of rainfall micro-physical parameters can be achieved.

A circuit powering an electrical device based on a commanded current signal is provided. The circuit includes a linear current amplifier which sets a desired current flow. The circuit also dynamically controls a supply voltage in order to minimize power dissipation of the linear current amplifier. The circuit may also include a voltage drop measurement amplifier, a voltage shaping amplifier, and a switching power supply. The circuit is useful for controlling electrical devices requiring precise current control and minimal power dissipation, for example, driving light-emitting diodes (LEDs) that provide illumination inside the passenger compartment of a vehicle for an imaging occupant detection system.

The invention relates to a camera distortion correcting method based on a square target model and perspective projection. According to the method, firstly, a space coordinate system with the center of a camera as an original point is built, the plane equation of a grid point target plane on a camera coordinate system is calculated by the adoption of the square target model according to the coordinates of a target spot in the center of an image; a grid corresponding to the original image is generated on the plane, grid points are projected on an imaging plane, and ideal grid points are formed; according to the one-to-one correspondence relation between the grid points of the original image and the ideal grid points, interpolation is carried out in the image in a blocking mode, and each pixel on the original image is corrected to be at the ideal position. Compared with the prior art, a distortion model is not used, the computing process is simple, and the image distortion caused by errors of camera components and assembly is well overcome.

A data processing apparatus is provided for processing an image signal obtained from a solid-state image pickup device, in which a plurality of types of color filters are discretely provided on pixels, and a pixel to be interpolated and surrounding pixels thereof have image signals. The apparatus comprises an interpolation section for generating a missing color signal in the image signal of each pixel by interpolation using at least the image signals of the surrounding pixels among the image signals of the pixel to be interpolated and the surrounding pixels thereof. The interpolation section obtains an interpolation pattern, which is similar to a pattern of data values of the pixel to be interpolated and the surrounding pixels thereof, depending on uniformity and gradient of the image signals of the pixel to be interpolated and the surrounding pixels thereof, and performs interpolation depending on the interpolation pattern.