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78results about How to "Overcoming distortion" patented technology

Multi modal spectroscopy

The present invention relates to multimodal spectroscopy (MMS) as a clinical tool for the in vivo diagnosis of disease in humans. The MMS technology combines Raman and fluorescence spectroscopy. A preferred embodiment involves diagnosis cancer of the breast and of vulnerable atherosclerotic plaque, esophageal, colon, cervical and bladder cancer. MMS is used to provide a more comprehensive picture of the metabolic, biochemical and morphological state of a tissue than afforded by either Raman or fluorescence and reflectance spectroscopies alone.
Owner:MASSACHUSETTS INST OF TECH

Method and apparatus for processing channel evaluation result based on transformed domain and its receiver

The present invention relates to mobile communication field, discloses a method as well as an apparatus for processing channel estimating result based on transform-domain, and a receiver. The method includes: obtaining channel estimating result; replacing the channel estimating result of the subcarrier with original channel parameter of the subcarrier at the borderline guiding-frequency position; correcting the channel estimating result of the subcarrier at the borderline guiding-frequency position; calculating and obtaining the channel estimating result of non guiding-frequency position subcarrier between the borderline guiding-frequency positions using interpolation according to the correcting result. According to the method, the present invention provides an apparatus for processing the channel estimating result based on transform-domain and a receiver. The present invention prevents the channel estimating result around the guiding-frequency position from aberrance, further improves the veracity of the channel estimating result. In addition, the present invention restraints noise heft larding within useful signal, so as to improve the performance of channel estimating result.
Owner:HUAWEI TECH CO LTD

Oval speaker apparatus and method of manufacturing the same

An oval speaker apparatus includes a diaphragm whose outer peripheral shape in a plan view is oval or elliptical; an oval or elliptical voice coil for driving the diaphragm; an edge which is joined to an outer periphery of the diaphragm; and a frame to which an outer peripheral edge of the edge is fixed. Further, lead wire which is led out from the voice coil is wired so as to traverse the surface of the edge along the minor-axis direction of the diaphragm, and is provided with slack.
Owner:PIONEER CORP +1

Detection method and detection device for detecting foreign matters in bottled liquid based on reflected light path design

ActiveCN104359916AGood rotation (autorotation) stateDetection facilitates realizationOptically investigating flaws/contaminationForeign matterPrism
The invention relates to a detection method for detecting foreign matters in bottled liquid based on a reflected light path design and a detection device adopting the method. According to the method, a mechanical hand is used for clamping a detection bottle containing liquid from the upper part of the detection bottle to perform bottom light detection and backlight detection; a bottom light source is used for illuminating the detection bottle from the downside of the detection bottle to the upside; a first camera is used for shooting a transmittance image of front surface bottom light reflected by a first prism; a second camera is used for shooting a transmittance image of back surface bottom light which is reflected by a side back reflecting mirror and then reflected by a second prism; a backlight source is used for illuminating the detection bottle from the back surface of the detection bottle; a third camera is used for shooting a transmittance image of backlight reflected by a third prism; the images are analyzed to determine whether foreign matters exist in the liquid in the bottle; and the detection device consists of the light sources, the prisms, the reflecting mirrors, the cameras and matching devices. The detection device disclosed by the invention is small in volume and high in detection efficiency, and can be mainly used for detecting foreign matters in various bottled liquids especially medical bottled liquids including infusion bottles and the like.
Owner:德州深华光电科技有限公司

Quick mud stirring device for planting loquats

The invention relates to a mud stirring device for planting loquats, in particular to a quick mud stirring device for planting loquats. Mud can be uniformly stirred by the quick mud stirring device for planting the loquats, and the quick mud stirring device is novel in structure and high in stirring speed. The quick mud stirring device for planting the loquats comprises a left frame, a bottom plate, a right frame, a first slide rail, a stirring frame, first sliders, a push rod, a second slide rail, second sliders, a second rack, a large belt pulley, a tooth-missing gear and the like. The left frame, the first slide rail and the right frame are sequentially arranged on the top of the bottom plate from the left to the right, the first sliders are slidably connected onto the first slide rail, and the stirring frame is arranged on the tops of the first sliders. The quick mud stirring device has the advantages that the mud can be uniformly stirred by the quick mud stirring device, and the quick mud stirring device is novel in structure and high in stirring speed; the mud can cover saplings of the loquats, the root systems of the saplings can be protected, transpiration of water can be reduced, and accordingly the survival rate of the loquats can be increased.
Owner:屏边县昌源果蔬产销专业合作社

Fixing rack for supporting oil pipeline

The invention provides a fixing rack for supporting an oil pipeline. The fixing rack comprises L-shaped supports, a base arranged between the two L-shaped supports and a supporting device fixed on the base. The supporting device comprises an arc-shaped shell and horizontal plates which are connected to the two ends of the arc-shaped shell respectively, and a cuboid groove is formed in one side of each horizontal plate. The supporting device further comprises a hoop which comprises two semicircular shell bodies connected through a hinge, the hoop is placed in the arc-shaped shell, and the hinge is fixed at the bottom of the arc-shaped shell. The semicircular shell bodies which are connected through the hinge are arranged in the cuboid grooves of the horizontal plates in a sliding mode respectively. The supporting device further comprises a plurality of springs which are arranged on the two sides inside the arc-shaped shell, one end of each spring is connected to the inner wall of the arc-shaped shell, and the other end of the corresponding spring is connected to the outer wall of the corresponding semicircular shell body. According to the fixing rack for supporting the oil pipeline, the springs are connected between the arc-shaped shell and the semicircular shell bodies, and the compressed springs give supporting force to the arc-shaped shell, so that the oil pipeline can be stably placed in the hoop.
Owner:嘉兴力度五金科技股份有限公司

Real time desktop image warping system

The present invention relates to an image warping software algorithm for a real time alteration of a display scene running under the Microsoft Windows Operating System. The image warping software algorithm alters the display scene and allows an observer to view the display scene as a single unbroken image when the display scene is distributed across multiple display screens. The purpose of the image warping software algorithm is to significantly reduce the distortion observed at the abutting edges of the joined display screens.
Owner:U S OF A AS REPRESENTED BY THE SEC OF THE NAVY

Frame synchronization method based on differential correlation information in satellite communication system

Provided is a frame synchronization method for synchronizing frames with pilot blocks added thereto based on differential correlation information in a satellite communication system. The method can acquire a highly reliable frame synchronization estimation value by achieving a multi-step threshold value test using pilot blocks after a correlation analysis and a threshold test based on a sync signal in order to resolve the problem of a low signal-to-noise ratio and a large frequency error and acquire highly reliable frame synchronization performance, and can overcome distortion of a correlation analysis value caused by the frequency error by analyzing correlation based on differential information. The method includes the steps of: a) performing correlation analysis and a threshold test by using a sync word; and b) performing a multi-step correlation value test by using the pilot blocks added to the frames prior to the sync word.
Owner:ELECTRONICS & TELECOMM RES INST

Color image quality evaluation method based on color descriptor

The invention discloses a color image quality evaluation method based on a color descriptor, which mainly solves the problem that the prior art can only give the sorting result between images, and cannot give the quality fraction which is more easily accepted by human beings. The implementation scheme is as follows: the preference image pair is constructed by selecting two images, and the color harmony descriptor, color contrast descriptor and color richness of each image are extracted; The difference between the two image features in the image pair is used as the feature difference of the image pair, and the preference class label of the image pair is estimated. The training data set is established by using the feature difference of each image pair and the corresponding preference class label; Mapping feature difference vectors of all image pairs to their corresponding preference class labels; The perceptual quality score is calculated according to the preference scale and the perceptual quality score. The invention improves the accuracy of the color layout, the hue and the quality evaluation of the harmonious color of the image, the quality fraction conforms to the human habit, and can be used in the compression, storage and transmission process of the color image.
Owner:XIDIAN UNIV

Apparatus for adjusting the degree of freedom using sensor in assembling optical device

An apparatus for adjusting degrees-of-freedom during the assembly of an optical device using a sensor. The apparatus includes a degree-of-freedom adjustment unit having a holder and an error control portion linked with the holder; a plate-fixing unit having a fixed jig for firmly loading the fastening plate, an elevating means and a plunger for fixing the fastening plate; a laser generating unit for emitting a laser beam onto the image sensor on the PCB assembly which is loaded on the holder; a sensor unit for measuring a mounted status of the image sensor surface-mounted on the PCB plate; and a control unit displaying a current position and a quality decision factor of the image sensor on a monitor after comparing a measured value transmitted from the sensor unit with a previously established master reference value.
Owner:ADS TECH

Electronic angle gauge tree surveying apparatus and automatic tree survey method

InactiveCN1570557ATake full advantage of the acquisition functionOvercoming distortionMeasurement devicesTransducerAngle gauge
This invention discloses an automatic method of tree measuring and an electronic angle gage device for tree measuring that comprises optical angle gage and digital camera and locates the CCD surface (optical-to-electric transducer) (2) on the focal surface of the optical angle gage. So the image optical signal collected by telescope system and microsystem is transformed into electronic signal and is digitalized. And the signals are imported into database through communication cable, which can realize the information collecting and automatic recording. The said method is the combination of the process of tree measuring by the electronic angle gage and computer techniques. With the aid of the electronic tree-measuring device, it can realize the measuring, judging and total automatic calculation through the angle gage tree-measuring software to accomplish outdoor and indoor work synchronously and increases the working efficiency and lower intensity of labor.
Owner:BEIJING FORESTRY UNIVERSITY

High speed DAC current source switch driving circuit

InactiveCN102355246AAvoid glitch spikesLower cross pointElectronic switchingDriver circuitControl signal
The invention relates to a high speed DAC current source switch driving circuit. A power supply voltage of the driving circuit is lower than a power supply voltage. The power supply of the driving circuit is an amplitude limit power supply. The driving circuit comprises a signal synchronization unit which is used for guaranteeing synchronization of current switch control signals. The signal synchronization unit gates the switch control signals through a global clock (CLK) and performs synchronization latch through a latch unit so that the synchronization of all the current switch control signals can be guaranteed. The signal synchronization unit generates a group of complementary first control signals and a group of complementary second control signals. A reduction control voltage cross point unit outputs two channels of control voltages and is used to reduce cross points of the two channels of control voltages so that the two complementary current switches can not be turned off simultaneously. An output terminal can avoid to output burr and peak. Smooth transition of the output current can be realized. By using the circuit of the invention, the burr and the peak introduced by the current switch can be overcome; influence of the current source switch control signals on DAC performance can be avoided.
Owner:SUZHOU R&D CENT OF NO 214 RES INST OF CHINA NORTH IND GRP

Egg-milk powder essence composition and preparation method thereof

The invention discloses an egg-milk powder essence composition and a preparation method thereof. The egg-milk powder essence composition comprises the following components in parts by weight: 35-50 parts of enzymatic hydrolysate, 35-44 parts of maltodextrin, 4-6 parts of starch sodium octenylsuccinate, 1-3 parts of glucose powder, 0.2-0.4 part of sodium alginate, 0.1-0.3 part of sodium carboxymethylcellulose, 4-6 parts of an egg-milk essence base and 1.5-3.5 parts of palm oil, wherein the enzymatic hydrolysate is mainly prepared by the step of carrying out heating and enzymolysis on raw materials, wherein milk and egg pulp are used as the raw materials, and protease and phospholipase are used as catalysts. According to the egg-milk powder essence composition, flavors of the milk, egg white and egg yolk are naturally and realistically integrated; meanwhile, the egg-milk powder essence composition has excellent high temperature resistance and can be used for directly perfuming baking foods, candies, milk products and leisure foods so as to enable the baking foods, candies, milk products and leisure foods to have the egg-milk flavor.
Owner:GUANGZHOU FLOWER FLAVOURS & FRAGRANCES

Image processing method and apparatus, storage medium, and computer device

The invention relates to an image processing method and apparatus, a storage medium, and a computer device. The method comprises: acquiring a to-be-processed image belonging to a first image class; inputting the to-be-processed image into a first-stage image conversion model to obtain a first intermediate image; converting the first intermediate image into a second intermediate image by a second-stage image conversion model; determining a second weight matrix corresponding to the second intermediate image; determining a first weight matrix corresponding to the first intermediate image; and carrying out fusion of the first intermediate image and the second intermediate image based on the corresponding first weight matrix and second weight matrix to obtain a target image that corresponds tothe to-be-processed image and belongs to a second image class. Therefore, the image conversion effect is improved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Terahertz image non-uniformity correction method

The invention discloses a terahertz image non-uniformity correction method, and relates to the terahertz imaging technology field. Defects caused by incomplete response of a part of detection units during acquisition of terahertz image data are effectively overcome. A terahertz detector area array is divided into a plurality of areas to acquire a response gain parameter and an offset parameter, which are more accurate, and are used for two-point calibration algorithm pretreatment of a terahertz image of a target object, and then a final correction parameter can be used to reflect the response conditions of the various detection units of the detector area array accurately, and therefore better image effect can be acquired, and an image distortion problem caused by unreasonable weight allocation is overcome. The terahertz image non-uniformity correction method further comprises one-point calibration algorithm pretreatment used for updating the offset parameter, and therefore an object of real-time correction of response output of an imaging system is achieved. The temperature drift phenomenon of the terahertz array detector imaging system in a working state is overcome.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

Image deblurring method and device

The invention discloses an image deblurring method and device. A to-be-processed image is divided into a plurality of regions based on the depth information of pixel points, a fuzzy kernel of each region is respectively calculated, for each region, the fuzzy kernel of the corresponding region is utilized to carry out deblurring processing, edge fusion of the regions after deblurring is carried outto acquire an image after deblurring, and problems of a ringing phenomenon and distortion of the deblurred image are solved.
Owner:CHINA SECURITY & FIRE IOT SENSING CO LTD

Passive polarization three-dimensional reconstruction method based on CNN correction

The invention relates to a passive polarization three-dimensional reconstruction method based on CNN correction. The method comprises the following steps: acquiring a plurality of polarization imagesof a to-be-reconstructed object at different polarization angles; obtaining the first surface normal gradient field of the to-be-reconstructed object according to the polarization image; acquiring thesecond surface normal gradient field of the to-be-reconstructed object by using a convolutional neural network; correcting the first surface normal gradient field by using the second surface normal gradient field to obtain the third surface normal gradient field of the to-be-reconstructed object; and realizing three-dimensional reconstruction of the to-be-reconstructed object according to the third surface normal gradient field. According to the three-dimensional reconstruction method, the problem of three-dimensional reconstruction result distortion caused by binaryzation of the normal azimuth angle is solved, three-dimensional reconstruction can be realized under natural light, the application scene is wide, and the cost is relatively low.
Owner:XIDIAN UNIV

Dimensionally stable laminate with removable web carrier and method of manufacture

A balanced dimensionally stable laminate uses a web carrier which is removably attached to a layer of the laminate during lamination and processing. The web carrier maintains dimensional stability of the layers of the laminate during lamination and processing and after removal of the web carrier. The web carrier is removed if at all only after the laminate is formed and processed. The bonding force of the web carrier with at least one of the polymers layer resists forces which would otherwise dimensionally distort the layers of the laminate or design features thereof during lamination, particularly in thermal roll-forming lamination. The layers of the laminate, which may include print and texture design features, remain dimensionally stable after removal of the web carrier. The web carrier can be removed at any time prior to or after final application of the laminate to a substrate.
Owner:SCHNELLER

Switching system for electrical impedance tomography

The invention discloses a switching system for electrical impedance tomography (EIT). The switching system comprises a flexible flat cable pin-shaped socket, a D-SUB connector, four shape memory alloy (SMA) connectors, four groups of decoding circuits, four groups of electric control switch circuits and a shielding driving circuit, wherein the shielding driving circuit is connected with the D-SUB connector through a shielding signal connecting wire; the input ends of the four groups of electric control switch circuits are connected with the D-SUB connector through an internal connecting bus respectively; the input end of each group of decoding circuit is connected with the output end of a group of electric control switch circuit respectively; the output ends of the four groups of decoding circuits are connected to the same flexible flat cable pin-shaped socket; and each SMA connector is connected to a group of electric control switch circuit. The switching system is ingenious in concept; the switching system of the conventional EIT system forms a subsystem independent from a data acquisition system, so that an electrode distribution parameter is reduced; and due to the adoption of novel switches and a shielding driving technology, the whole EIT system has the advantages of high imaging accuracy, high imaging speed, long service life, wide working frequency range and the like.
Owner:SEALAND TECH CHENGDU

Fire-resistant cable for bus and silicon rubber mixture of cable extrusion silicon rubber layer

The invention discloses a fire-resistant cable for a bus, comprising a conductor and a fire-resistant layer which is a fire-resistant layer of extrusion silicon rubber mixture, and the thickness of the fire-resistant layer of the extrusion silicon rubber layer is less than or equal to 0.20mm. The invention also discloses a silicon rubber mixture for cables, which is prepared by mixing single-component room temperature vulcanized silicone rubber and silicone oil by volume ratio of 9:1. In the fire-resistant layer of extrusion silicon rubber layer of the invention, the thickness of the fire-resistant layer of traditional silicon rubber is significantly reduced; and the characteristic of low dielectric constant is satisfied. Meanwhile, the invention also overcomes the problem of the attenuation and distortion of transmission signals caused by over-large thickness of the fire-resistant layer and uneven extrusion surface of cables for traditional buses, reduces attenuation, crosstalk and structural return loss, and ensures that the working range of a bus system can not be diminished; and the fire-resistant cable can still keep compact integral structure size by taking account of both fire-resistant property and high-frequency transmission property.
Owner:SHANGHAI ELECTRIC CABLE RES INST +1

Method and apparatus for reactive optical correction of galvano motor scanning heads

This invention relates to a method of optical correction of field position distortions created by galvano motor scanning heads. In addition, the invention relates to the apparatus and method to achieve a calibration of said field positions to overcome said distortions generated by the delivery optics within a galvano motor scanning head using a pre-calibrated target that may be positioned into a registration or ‘lay’ system for ease of identifying and measuring said series of marks by removal and replacing said pre-calibrated target into said registration or ‘lay’ system, pre-determined logic means to generate a series of marks on said pre-calibrated target using said galvano motor scanning head and said galvano motor scanning head control apparatus and operator input so that said logic means may calculate from a minimum number of operator entries corresponding to said series of marks on said pre-calibrated target that may be positioned into said registration or ‘lay’ system for ease of identifying and measuring said series of marks by removal and replacing said pre-calibrated target into said registration or ‘lay’ system a full field correction of the field position distortions taking into account all beam or laser beam, mounting, alignment and parallelity intolerances to generate corrected galvano motor position control optical correction data reactive to the exact parameters of an individual laser, delivery optic / s, galvano motor scanning head and target plane set-up.
Owner:ABARISCAN

Hedge trimming device assembly

The invention discloses a hedge trimming device assembly, and relates to the technical field of hedge trimmer tools. The hedge trimming device assembly comprises a transverse movement mechanism, a steering mechanism and a trimming mechanism; the transverse movement mechanism comprises a transverse movement guide rail and a transverse movement sliding base, a driving chain is fixedly connected to the transverse movement guide rail, and a driving wheel rolling along the surface of the driving chain is installed on the transverse movement sliding base in a reciprocating sliding manner. The hedgetrimming device assembly solves the problems that in a traditional technology, a steering assembly in a trimming device is under the visual field limitation of hedges during steering, and the phenomenon of tooth cracking of a steering wheel is caused; in the movement process of a transverse movement assembly, when the transverse spacings between the hedges and a road surface are different, the operation requirements for drivers are high; a trimming assembly cannot achieve combined trimming since multiple cutters are in single contact with the hedges for cutting, so that the throwing directionof branches is not fixed, and partial power is wasted; the branches are thrown on the high-speed road surface under the rotary cutting function of the cutters, and vehicles driven at high speed are influenced.
Owner:广州交投绿化建设有限公司 +2

Binocular telescope with adjustable prism module

In a binocular telescope with an adjustable prism module, an eyepiece lens module, a prism module and an objective lens module are installed inside a telescope tube of the binocular telescope. The prism module includes a prism base, a first right-angle prism, a Porro prism, a second right-angle prism and a support base, and an exit surface of the first right-angle prism is connected with an incident surface of the Porro prism, and the second right-angle prism is set on the support base, and the incident surface of the second right-angle prism is attached to the Porro prism. The first and second right-angle prisms can be adjusted to change the angle of optical axes among the prism module, the eyepiece lens module and the objective lens module to prevent a distortion of the optical imaging.
Owner:FOSHAN NANHAI WEIHONG MOULD MFG CO LTD

Pinhole type imaging device

A pinhole type imaging device of the present invention includes a pinhole type aperture stop which allows advancing of light ray into an optical system and imaging, and at least one lens which is attached to the pinhole type aperture stop. Accordingly, an imaging device where it is realized that all imaging results of subjects positioned at different photographing distances are sharp, which has a simple structure and can be reduced in size, and which is suitable for attachment or use in an information terminal such as a small-sized image pickup device, a portable phone (a cellular phone), or a mobile type computer, and an auxiliary device thereof.
Owner:TECHNO INT +1
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