86results about How to "Prevent overcorrection" patented technology

A subject area extracting unit extracts a main-subject area from the color image data; a correction amount calculating unit calculates a gradation correction amount based on the information on the thus-extracted main-subject area; a control zone extracting unit extracts a predetermined control zone from a brightness zone to which the main-subject area does not belongs; a determining unit determines whether or not the gradation correction amount on the control zone should be controlled, according to a predetermined control requirement; and a control unit controls the gradation correction amount according to the determination result of the determination unit.

The invention discloses a method for conducting inland water body atmospheric correction based on oxygen and water-vapor absorption wavebands, and relates to the technical field of remote sensing. The method comprises the steps of processing hyperspectral remote sensing image data of an inland water body, extracting a clean water body image element (dark image element), conducting the rayleigh scattering removal and atmospheric correction on the extracted dark image element, utilizing the oxygen and water-vapor absorption wavebands for combinatorially computing atmospheric correction factors on the corrected image element, conducting aerosol scattering of extrapolation full-wave bands, and utilizing the calculated aerosol scattering value for conducting the atmospheric correction on a whole-scene image. According to the method, the characteristic that the water body is low in reflectivity at the oxygen and water-vapor absorption wavebands is utilized, the water body dark image element is selected, the aerosol scattering is calculated, the phenomenon that due to the fact that in the inland water body atmospheric correction, the water body is high in turbidity, overcorrection is caused is avoided, the precision of the inland turbid water body atmospheric correction is improved, and the technical support is provided for improving the precision of remote sensing retrieval.

The invention discloses a time domain high pass non-uniformity correction method based on gray scale correlation, relating to the time domain high pass non-uniformity correction method based on gray scale correlation in the infrared imaging technology field and belonging to the infrared imaging technology field. The time domain high pass non-uniformity correction method based on the gray scale correlation comprises steps of using spatial domain low pass filtering result having edge protection as a correction reference source to perform pre-correction on an inputted image, calculating correction offset value of each frame by combining with time domain high pass filtering, changing the mapping relation between the offset value and the grey scale according to the changing volume of the incident radiation in the same position of each frame, removing the ghost during the correction procedure, and improving the infrared imaging quality. The time domain high pass non-uniformity correction method based on the gray scale correlation can reduce the occurrence probabilities of the ghost and the over-correction of the real-time infrared imaging system non-uniformity correction algorism, improves the infrared imaging quality, reduces the calculation quantity and storage space and facilitates the realization of the hardware.

The present invention discloses a method which can amend the typing error according to the tactic position of the keyboard character. The method uses a character input keyboard which is formed by a press-inducting touch board to amend the mistakenly typed key-press which is adjacent to the target character due to the position deviation when typing. The method at least comprises the following steps: firstly, character corresponding; secondly, deviation calculating; thirdly, attaining preliminary characters; fourthly, whether input is accomplished; fifthly, rule judging; sixthly, preliminary character attaining; seventhly, character replacing; using the method can achieve the effect of improving the accuracy of inputting, and can automatically and timely amend the input character group.

Circuit-pattern-data correction method and semiconductor-device manufacturing method which prevent excessive correction from being made when model-based proximity-effect correction (OPC) is applied to a corrected circuit pattern, the excessive correction being caused by a step (difference in level) close to a circuit-pattern corner in the corrected circuit pattern, and the step being produced when rule-base OPC is applied. The rule-based OPC is applied to input design data in step S1; a step close to a circuit-pattern corner, produced by the rule-based OPC is detected in step S2; the step is removed in step S3; and the model-based OPC is applied and exposure data is generated in step S4.

The invention discloses an orthodontic correction device for legs. The orthodontic correction device comprises shank fixing plates fixed with a shank, thigh fixing plates fixed with a thigh and a correction pressing assembly for correcting genu varus or genu valgum, wherein upper ends of the shank fixing plates are hinged with lower ends of the thigh fixing plates, and outer hinge joint parts on the outer side of a knee joint and inner hinge joint parts on the inner side of the knee joint are formed respectively; the correction pressing assembly comprises first parts and second parts, the second parts are fixed on the outer hinge joint parts or the inner hinge joint parts, the first parts are fixed on the shank fixing plates and/or the thigh fixing plates, the inner end surfaces, facing the knee joint, of the first parts are inclined planes, the outer end surfaces of the second parts can be contacted with the inclined planes of the first parts, knee joint pressure plates capable of being contacted with the knee joint of a human body are connected with the inner sides of the second parts, and swing of the shank of the human body relative to the thigh can drive the outer end surfaces of the second parts to move relative to the inclined planes of the first parts.

The invention discloses a fisheye image distortion correction method based on elliptical division, and belongs to the technical field of machine vision. The method mainly comprises the steps of calculating center coordinates and radius of a fisheye image, converting the fisheye image into a standard circle mode, dividing the fisheye image into four parts with two diagonal lines, and fitting each part with one part of an elliptic curve. According to the fisheye image distortion correction method based on the elliptical division, a coordinate mapping table is adopted to record a coordinate mapping relation between the fisheye image and a corrected image in the correction process, thus the coordinate mapping relation needs to be calculated only once, the algorithm effect and timeliness are good, and the method is applicable to real-time correction display of the fisheye image.

The invention provides a hollow partition plate stationary blade profile correcting method which solves the problem in the existing die correcting method that secondary deformation of a blade is easy to cause, and a correcting effect is poor. The method includes die correction which includes that a correcting die is arranged in a press. The method is characterized in that before the die correction, a cavity of the hollow partition plate stationary blade is filled with filling materials, the blade is arranged in the correcting die, the press is used for exerting pressure on the correcting die to conduct die correction on the blade profile, after the correction is finished, the filling materials in the cavity of the blade are removed, and the blade can enter the next machining procedure.

The invention discloses an optical lens set for image taking, an image taking device and an electronic device. The optical lens set for image taking orderly comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from an object side to an image side. The first lens has negative refracting power, and the image side surface is a concave surface. The image side surface of the third lens is a convex surface. The fourth lens has positive refracting power. The object side surface of the fifth lens is a concave surface, and the optical lens set for image taking comprises five lenses. When certain conditions are satisfied, the configuration of the refractive power between the lenses can be balanced, and the ability of aberration correction can be effectively improved. The invention also discloses the image taking device with the above optical lens set for image taking and the electronic device with the image taking device.

A shading correction apparatus, method, and program capable of realizing high-speed and high-quality correction include: a work as an object to be captured; a capture unit for capturing the work; a background image data generation unit for generating background image data from original image data generated by the capture unit; and a correcting process unit correcting uneven luminance of the original image data using the background image data.

The invention discloses an airbag structure with regard to displacement deviation of an operating subway tunnel and a construction method. The airbag structure with regard to the displacement deviation of the operating subway tunnel comprises an airbag; a central pulling rod and a telescopic skeleton which is arranged around the central pulling rod are arranged in the airbag; a conical cap tip which is fixedly connected with the central pulling rod is arranged at the top of the airbag; the bottom of the airbag is connected with a sealing plug; a hole channel for the central pulling rod, an inflating pipe and a soil feeding pipe to enter is reserved in the center of the sealing plug; air is supplied to the inflating pipe through an inflating device; and filling soil is supplied to the soilfeeding pipe through a soil feeding device. The influence on the surrounding can be minimized to the greatest extent in the mode of inflating, extruding and correcting by utilizing the airbag; great influence on the surrounding environment in conventional sleeve valve pipe grouting which may cause the hazard of unnecessary deformation close to other pipelines or structures is avoided; and the airbag structure with regard to the displacement deviation of the operating subway tunnel and the construction method are suitable for performing local tunnel displacement deviation in underground space with dense pipelines.

The invention provides a height platform adjusting device applied to the assembly of a fuel oil main pipe and a using method of the height platform adjusting device, and belongs to the technical fieldof assembly of aviation parts. The height platform adjusting device applied to the fuel oil main pipe assembly comprises a round base, a positioning ring, positioning pins, an angular positioning device and a height adjusting device, wherein the positioning ring is arranged on the round base, and a plurality of positioning pins are arranged on the positioning ring in the circumferential direction. The round base is provided with a first extending end and a plurality of second extending ends, the angular positioning device is arranged on the first extending end, and each second extending end is provided with a height adjusting device. Each angular positioning device comprises a positioning support, an angle plate, a first threaded rod, a first nut and a threaded sleeve. Each height adjusting device comprises a base plate, a guide seat, a wedge block, a sliding column, a dowel, a spring, a support plate, a second threaded rod, a second nut, a third threaded rod, a third nut and a handle. According to the device, the assembly of the fuel oil main pipe can be realized, the operation difficulty is lowered, a main combustion chamber is not required to be hoisted, and the safety is guaranteed.

The invention relates to posture correcting and protective eyeglasses. A vertical eyeglass frame which consists of a bracket and eyeglasses is adopted. The bracket plays a supporting role, the height of the bracket is adjusted when the posture correcting and protective eyeglasses are used, and a user can then view a viewing target only in a manner that the user must be in a correct sitting position and can neither offset the head nor lie forwardly, so that the posture can be corrected, the humpback is avoided, the spinal curvature and cervical spondylosis are prevented, and the distance from the viewing target to eyes is fixed; and the eyeglasses are lenses or lens groups which are specially formulated according to the refraction status of the eyes of the user and the distance from the viewing target to the eyes, so that the overcorrection is prevented, the eyes are enabled to suffer from excessive myopia fatigue as little as possible, the occurrence of myopia is prevented, and the deepening and development of the myopia are slowed down.

The invention relates to an image shooting method and system. The image shooting method comprises the steps of providing an imaging apparatus, wherein the imaging apparatus comprises a shooting apparatus for obtaining an image, and a carrier platform over against the shooting apparatus; the carrier platform can move along an X coordinate axis and a Y coordinate axis from a reset point; a strip-shaped sample is put on the carrier platform along the Y coordinate axis; the mobile carrier platform enables the shooting apparatus to observe two ends of the sample to determine a shooting region in the strip-shaped sample; and the shooting region is segmented into multiple strip-shaped regions which are connected in parallel and staggered in sequence; and each strip-shaped region comprises multiple shooting sub-regions. According to the image shooting method and system, the carrier platform can be prevented from moving out of a sample range.

In a visual training device and a visual training method, different targets are displayed for right and left eyes, respectively, and refractivities of the right and left eyes are measured. Based on the measured refractivities of the eyes, positions of the targets displayed for the right and left eyes are moved in the directions of the respective optical axes. At the same time, the targets are moved so that the visual axes of the right and left eyes incline outward toward the end. The directions of the visual axes of the right and left eyes incline outward toward the end, so that it is possible to relax the strain of musculus ciliaris and relieve visual fatigue through short, effective training.

Spinal adjustment system including at least three implant modules, at least one of the implant modules being a first implant module including:

• • means for engaging the first implant module with a first vertebra; and
  • first force application means;

characterised in that:

the first force application means is adapted to engage with a second implant module engaged with a second vertebra superior to the first vertebra;

the first force application means is adapted to also engage with a third implant module engaged with a third vertebra inferior to the first vertebra; and

the first implant module includes means of adjusting the force applied to the first vertebra by the first force application means.

The invention relates to the technical field of ejection pipes of non-excavation works, in particular to a reinforced concrete ejection pipe joint connector. The connector is positioned at a connection between a front pipe joint and a rear pipe joint which are adjacent. The connection part of the connector at least comprises a pipe joint outer wall sealing connecting part and a pipe joint inner wall sealing connecting part. The pipe joint outer wall sealing connecting part at least comprises a socket steel bushing ring positioned at the rear end of the front pipe joint and a socket steel ringpositioned at the front end of the rear pipe joint. The pipe joint inner wall sealing connecting part at least comprises the structure that steel bushing rings separately arranged on the front pipe joint inner wall and the rear pipe joint inner wall. Each steel bushing ring at least comprises an annular steel ring and an annular slab. Ribbed plates and bolted holes are uniformly distributed on thefront side and the rear side of the slab. The ribbed plate and the bolted holes are staggered mutually in position. The bolted holes in the front pipe joint slab are corresponding to those of the rear pipe joint slab. The bolted holes corresponding to one another are connected by bolts and nuts. The pipe joint connector adopting the technical scheme can completely meet the need of projects with high waterproof requirements, and can adapt to complex construction environments such as high water pressure and soft ground.

The invention relates to an intelligent control device and method for preventing a conveyor belt from deviating. A lower joist is fixed to a conveying rack, a bearing set is connected with the lower joist, a swing bracket is inserted into the bearing set to be fastened after being connected with a rotating shaft in a welded mode, a gear is installed at the tail end of the rotating shaft and fixed, a gear is installed on a shaft head of a servo motor, the gear at the tail end of the rotating shaft is engaged with a servo motor shaft head gear in a relative tooth mode, a driver is placed on the lower joist, and two ultrasonic distance measuring sensors are installed at the two ends of the swing bracket respectively. The three rollers form a roller set, the conveyor belt runs on the roller set, a roller supporting base is connected with the swing bracket, and the three rollers are connected with the roller supporting base. A PLC is electrically connected with a driver and the two ultrasonic distance measuring sensors, and the driver is electrically connected with the servo motor. The intelligent control device and method have the advantages that the deviation amount is intelligently detected in a non-contact mode, the edge of the conveyor belt is not abraded, the deviation correcting amount is intelligently matched, reliability is high, and maintenance is not needed.

A control device for an internal combustion engine which, at cold starting, enables an ignition timing retard control for warm-up of a catalyst device and a speed feedback control by means of ignition timing for converging an engine speed to a target speed includes a function for comparing a final ignition timing with a retard lower limit value, and a function for changing the target speed based upon the result of the comparing. When the final ignition timing reaches the retard lower limit value, the target speed is increased by a predetermined speed and when a difference between the final ignition timing and the retard lower limit value exceeds a predetermined angle on an advance side, the target speed is decreased by a predetermined speed. In this way, at cold starting, the engine speed is early converged to the target speed while restricting rotational variations and early warm-up of a catalyst device can be certainly realized.