65results about How to "Clear contrast" patented technology

The invention discloses a character recognition method for underwater video images. The method comprises the steps that the video images are subjected to preprocessing according to the morphological image processing principle, the contrast ratio is enhanced, and noise is filtered out; video characters are subjected to region segmentation according to preprocessing results, and text region location is carried out through a method combining edge detection and communication elements; according to video character region segmentation results, character segmentation is carried out on characters through a binary method combining a global threshold method and a local threshold method, and segmented characters are subjected to normalization to enable the segmented characters to be consistent with characters in a template base in size; the template base is designed according to the characteristics of video characters, the segmented characters and the characters in the template base are matched, and the characters can be recognized and stored in text.

The invention belongs to the technical field of trace amount detection, in particular relates to a method that surfaces functionalized nanogold particles are used for potential fingerprint appearance. The invention provides the method that the different surface functionalized nanogold particles (probe) are used for the potential fingerprint appearance. The particles are the hydrophobixated nanogold particles decorated by alkyl hydrosulfide, the hydrophobixated nanogold particles protected by surface active agent cetane trimethyl ammonium bromide (CTAB), the water-soluble nanogold particles protected by the CTAB and the water-soluble nanogold particles protected by L-cysteine respectively. The probe and the ingredients in the residual sweat in the potential fingerprint generate the absorption and static functions or the condensation reaction, then an argentation is utilized to lead potential fingerprint samples to colorate in the argentation liquid, the nanogold particle signals for the ingredient identification in the fingerprint are magnified and the reduced argentum particles deposite at the grain position of the fingerprint samples to further present black, thereby forming the clear fingerprint image that can be observed by naked eyes. The method is simple, fast and high in sensitivity and has no harmful side effects.

The invention discloses an electrostatic spinning nano-fiber film, and a preparation method and a finger detection method of the electrostatic spinning nano-fiber film. The finger detection method has the advantages of simplicity, rapidity, high sensitivity and no toxicity or harm, and dispenses with large instruments. The prepared fiber film has a wide range of practical objects, is rapid and convenient for operation, and is easy for mass production, and the raw material of the fiber film can be easily acquired. The invention mainly adopts the electrostatic spinning technology to prepare the polymer-based dye hybridization nano-fiber film, and the film can be used for direct fingerprint extraction and rapid fingerprint display at a certain temperature. The electrostatic spinning nano-fiber film disclosed by the invention is a polymer nano-fiber film in which dyes are evenly dispersed, wherein, the mass ratio of polymer and the dyes is 2-100 to 1, and the nano-fiber diameter is uniform and ranges from 50nm to 1,000nm.

The invention belongs to the technical field of detection, and in particular relates to a method for applying ZnS, ZnO and functionalized nano granules thereof in revealing latent fingerprints on different surfaces. The invention provides a method for revealing latent fingerprints on surfaces including glass, plastics, metal, clad plate (lacquer wood), paper and the like by means of ZnS, ZnO and functionalized nano granules thereof, wherein ZnS is prepared by two methods of a grinding method and a solution method, while ZnO nano powder is prepared by a sol-gel method; during revealing, the method for revealing the latent fingerprints on different object surfaces is realized by means of a dry powder brushing revealing method and a wet revealing method. The method has the advantages of simplicity, quickness, easy operation, no toxic and side effects on an operator and visualized result.

A light emitting unit 109 of cutting insents testing unit 132 for testing cutting blade state of cutting insents and a photography unit 114 is arranged opposited, and fixed on cutting cover 104. As a result of the light emitting unit 109 and the photography unit 114 is arranged opposited, therefore, peripheral shape images which enable identify cutting blade 102a of cutting insents 102 definitely are obtained even if droplets of splashing cutting water existed. Otherwise, through fixing the light emitting unit 109 and the photography unit 114 on the cutting cover 104, thereby without need of using optical fiber and wiring. In this way, a cutting device with functions of photographing for cutting blade of cutting insents, testing imperfects and abrasion gets rid restriction of ligth for photography should use optical fiber wiring, enables hold the state of the cutting insents assuredly to photograph.

A terrain visualization device is disclosed, the device comprising a wearable mounting structure adapted to be fixed to a user. The device also includes a light emitting unit attached to the mounting structure and configured to project a predetermined contrast pattern onto terrain when the mounting structure is fixed to a user. Also disclosed is a method for traversing terrain comprising fixing a wearable mounting structure to a user, the mounting structure having a light emitting unit attached thereto, traversing the terrain, and projecting a predetermined contrast pattern onto the terrain using the light emitting unit, so that the topography of the terrain can be determined from distortion of the contrast pattern. A method for illuminating a ski run is also disclosed.

The invention discloses multi-core displaying control method and device. The device comprises at least one TMDS (Transition Minimized Differential Signaling) signal receiver, at least one DP signal receiver, at least one VGA (Video Graphics Array) signal receiving and converting device, at least one analog video signal receiving and converting device, a frame buffering and DDR (Double Data Rate) control device, a DDR module, an OSD engine module, a multi-port LVDS (Low Voltage Differential Signaling) / V-by-One / eDP sending module, and at least four groups of scale processing modules, and gamma, color correction and video enhancing modules, wherein the at least four groups of scales addressing modules and gamma, color correction and video enhancing modules are sequentially connected. According to the multi-core displaying control method and device, the scale processing modules and the gamma, color correction and video enhancing modules are used for individually adjusting and controlling a display picture, so as to realize high-resolution display of the picture and random combination of a plurality of picture arranging modes, and the display quality of a contrast picture or a splicing picture is ensured; the method and device are particularly applied to popularization and application in the medical treatment, graphic design and advertisement industries.

The invention discloses a method for identifying a local structure of an amorphous alloy. The method includes the steps that all standard cluster configurations in the amorphous alloy are firstly screened out and counted as M, wherein each standard configuration includes one central atom and Nm neighboring atoms ( wherein m is equal to 1, 2, ..., M); with the neighboring atoms as a mass point, a point set U consisting of Nm elements is constructed, wherein the point set is shown in the description; then any one of the atoms i in a simulation system is traversed, and Ni neighboring atoms are found out by using a Voronoi polyhedron partitioning method. The provided method for identifying the local structure of the amorphous alloy has high resolution and high stability and is an extremely accurate and expandable structure identification method.

The invention discloses a digestive tract contrast agent capable of relieving gastrointestinal convulsion and having hypotonic effect, which is prepared from 50-70 weight parts of barium sulfate dry suspension or compound cardiografin contrast agent and 20-30 weight parts of traditional Chinese medicinal extract. The traditional Chinese medicinal extract is prepared by mixing the following raw materials in parts by weight: 20-30 parts of Corydalis yanhusuo, 10-20 parts of Radix Bupleuri, 20-30 parts of processed Radix Glycyrrhizae, 20-30 parts of Salvia miltiorrhiza, 10-20 parts of Cyperus rotundus, 10-20 parts of Aucklandia lappa, 20-30 parts of Fructus Amomi, 20-30 parts of Evodia rutaecarpa, 10-20 parts of Rhizoma Coptidis, 10-20 parts of Radix Paeoniae Alba, 20-30 parts of Atractylodes macrocephala, 5-10 parts of Radix Codonopsis, 10-20 parts of Bletilla striata, and 5-15 parts of Panax pseudoginseng powder, soaking in water, decocting for 30-40 min, filtering to obtain a filtrate, concentrating the filtrate under reduced pressure, and freeze-drying. The digestive tract contrast agent disclosed by the invention has low adverse side effects and gastrointestinal imaging function, can relieve gastrointestinal convulsion to achieve clinically desired hypotonic effect, and has important value for imaging diagnosis of early gastrointestinal lesions. The digestive tract contrast agent has effects of relieving pain and swelling, dissipating blood stasis, stopping blooding, improving gastrointestinal mucosa microcirculation, promoting gastrointestinal fluid absorption, relieving cardiac ache and gastrointestinal convulsion, and nourishing and treating stomach, intestine, liver, spleen and other organs.

The invention relates to TiO2 / C reinforced fingerprint appearing magnetic powder and a preparation method and application thereof, and belongs to the technical field of fingerprint identification. The fingerprint appearing magnetic powder is prepared from magnetic powder, developing powder and coloring powder. The chemical formula of the ingredients of the fingerprint appearing magnetic powder is Ma(BN)bXc, M is the magnetic powder and selected from at least one of Fe powder, Co powder, Ni powder, Fe3O4 powder and Fe78Si9B13 amorphous powder. BN is the developing powder, X is the coloring powder and selected from one of TiO2 and C, the subscripts a, b and c are the atom percentages of the corresponding elements, a is larger than or equal to 40 and smaller than or equal to 60, b is larger than or equal to 30 and smaller than or equal to 50, c is larger than or equal to 5 and smaller than or equal to 15, and the sum of a, b and c is 100. Compared with the prior art, the fingerprint appearing magnetic powder has the most prominent advantages that on the premise of high appearing precision, the preparation process is simplified, the fingerprint appearing magnetic powder is widely suitable for various complex environments, and high actual application value is achieved.

A near infrared absorbing fine particle dispersion liquid, which can be applied to offset printing, including: a solvent of one or more kinds selected from vegetable oils and vegetable oil-derived compounds; near infrared ray-absorbing fine particles of one or more kinds selected from composite tungsten oxide expressed by MxWyOz or tungsten oxide having a Magneli phase expressed by a general formula WyOz; a solvent of one or more kinds selected from alcohols, ethers, esters, ketones, aromatic hydrocarbons and glycol ethers and having a boiling point of 180° C. or less, wherein a content of the solvent of one or more kinds selected from alcohols, ethers, esters, ketones, aromatic hydrocarbons and glycol ethers is 5 mass % or less.

The invention relates to a method for preparing a pulled type cervical smear. The method comprises the following steps: (1) oscillating a specimen through an oscillator; (2) centrifugating a part of the oscillated specimen until the specimen is layered into supernatant liquid and a cell layer; (3) removing the supernatant liquid, sucking the cell layer, dripping the cell layer on a glass slide, laminating the glass slide with another glass slide, and then pulling the glass slides to the opposite directions; (4) fixing and dyeing so as to prepare the smear. Compared with a conventional Pap smear method, the method provided by the invention has the advantages of high specimen satisfaction, high smear quality and the like. Compared with a liquid base cytology method, the method provided by the invention has the advantages of simplicity in operation, uniform tiling of the prepared smears, non-overlapping of cells, clear background, no precious equipment, low cost and the like, and is convenient to popularize. Compared with a human papillomavirus-deoxyribose nucleic acid (HPV-DNA) detection method, the method provided by the invention has the advantages of no use of precious equipment, low inspection cost, simplicity in operation, convenience in popularization and the like.

The invention relates to Papanicolaou staining fluid and a using method thereof. The Papanicolaou staining fluid consists of fluid A, fluid B and 95 percent ethanol, wherein the fluid A is improved hematoxylin staining fluid; the fluid B is prepared from a phosphotungstic acid, eostm and light green. A method for preparing the improved hematoxylin staining fluid comprises the following steps of dissolving hematoxylin into the 95 percent ethanol, dissolving potassium alum into 100 DEG C boiling water, mixing two mixed solutions, adding an oxidant, stirring for at least 50 minutes, adding a glacial acetic acid, and stirring for at least 50 minutes. A method for preparing the fluid B comprises the following steps of mixing 95 to 97 mass percent of 0.2 to 0.6 percent phosphotungstic acid solution, 1.5 to 2.5 mass percent of eostm solution and 1.5 to 2.5 mass percent of light green solution. When the Papanicolaou staining fluid is used, a smear is fixed in the 95 percent ethanol, and is flushed in a specific environment by adding a corresponding amount of fluid A and a corresponding amount of fluid B. The Papanicolaou staining fluid has the advantages of low cost, bright color, clear contrast, coloring stability, is simple to prepare and convenient to operate, is easily popularized and used in various medical units and the like, and is applied to the display and diagnosis of the estrogen level of a vaginal smear and the poorly-differentiated small-angle cell carcinoma of a cervical smear and a sputum smear.

The invention discloses a system and a method for determining a fiber fracture surface rate of an impact specimen fracture. The method comprises the following steps: step (1), acquiring an image meeting pre-set definition requirements of the impact specimen fracture by adopting a fracture fiber fracture surface image acquisition device of the impact specimen fracture; step (2), converting the acquired image of the impact specimen fracture into an impact specimen fracture gray level image, and carrying out enhanced region characteristic algorithm processing on the impact specimen fracture gray level image; step (3), generating a binarization image; removing speckles from the binarization image to obtain a fracture surface original cross-sectional area and an area surrounded by a crystalline region boundary; step (4), solving a difference value of the original cross-sectional area of the impact specimen fracture surface and the area surrounded by the crystalline region boundary; solving a specific value of the obtained difference value and the original cross-sectional area of the impact specimen fracture surface, and acquiring the fiber fracture surface rate of the impact specimen fracture. With the adoption of the system and the method, provided by the invention, the crystalline region boundary can be automatically found and the working efficiency is improved.

The electrical charging by a primary electronic is inhibited to produce a clear edge contrast from an observation specimen (i.e., a specimen to be observed), whereby the shape of the surface of a sample can be measured with high accuracy. An observation specimen in which a liquid medium comprising an ionic liquid is formed in a thin-film-like or a webbing-film-like form on a sample is used. An electron microscopy using the observation specimen comprises: a step of measuring the thickness of a liquid medium comprising an ionic liquid on a sample; a step of controlling the conditions for irradiation with a primary electron on the basis of the thickness of the liquid medium comprising the ionic liquid; and a step of irradiating the sample with the primary electron under the above-mentioned primary electron irradiation conditions to form an image of the shape of the sample.

The invention provides a histopathological tissue sample treatment method, which comprises the following steps: (1) fixing: fixing an in-vitro tissue sample by adopting a fixing agent I and a fixing agent II in sequence during fixing; (2) washing; (3) dehydrating; (4) transparency treatment; (5) wax dipping and embedding; and (6) slicing and dyeing: carrying out dewaxing, treating dewaxed slices with a hematoxylin pre-dyeing solution for 2-3 minutes, and then, treating the dewaxed slices with a hematoxylin dyeing solution for 5-10 minutes, wherein the hematoxylin dyeing assistant solution comprises the following components: hematoxylin, aluminum sulfate, potassium permanganate, citric acid, nonylphenol polyoxyethylene ether and water, and the hematoxylin dyeing solution comprises the following components: hematoxylin, aluminum potassium sulfate dodecahydrate, potassium permanganate, acetic acid, nonylphenol polyoxyethylene ether, glycerol, absolute ethyl alcohol and water. The treatment method disclosed by the invention is easy to operate, high in tissue sample section integrity, good in dyeing effect, obvious in dyeing, clear in comparison and clear in cell hierarchy.

The invention relates to an indicator system for evaluating the reliability of a microcomputer relay protection device. The indicator system involves the following steps of firstly, calculating a reliability indicator R of the protection device; secondly, calculating a power swing indicator S of the protection device; thirdly, calculating the sensitivity indicator L of the protection device; fourthly, calculating a durability indicator N of the protection device; fifthly, calculating a maintenance indicator W of the protection device; sixthly, calculating an economy indicator J of the protection device; seventhly, converting the obtained reverse evaluation indicators into forward indicators by calculating the indicators R, S, L, N, W and J so that all the indicators can have the same directivity, converting all the forward indicators into relative value indicators, and finally comprehensively and uniformly evaluating the reliability of the relay protection device according to the relative value indicators, wherein the larger the calculation values of the relative value indicators are, the more perfect all the aspects of the protection device are, and the higher the reliability is. The indicator system can comprehensively evaluate the reliability of the relay protection device and is widely applied to relay protection device maintenance management personnel and relay protection device manufacturers.

The invention relates to a visual atlas fusion method and system based on entity alignment. According to the method and the system, data corresponding to a first atlas is acquired, and data corresponding to a second atlas is acquired; respectively displaying the first atlas and the second atlas in a visual interface; acquiring same-name entity nodes in the first graph and the second graph; judgingwhether the homonymous nodes in the first graph and the second graph are the same entity or not; and if the first atlas and the second atlas are the same entity, merging the homonymous nodes in a visual interface, thereby realizing visual fusion of the first atlas and the second atlas. The fusion process of the atlas is visually displayed in a visual interface, the logic is very clear, and the data source comparison and joint analysis process is clearer; and the interface affinity is excellent. And the method has an excellent application effect in a multi-party data joint investigation process. And multi-feature comprehensive judgment is adopted in the same-name natural person entity recognition process, so that the judgment and recognition accuracy is high.

The invention discloses an alimentary canal contrast agent capable of relieving gastrointestinal spasm. The alimentary canal contrast agent comprises the following ingredients: 85 parts of a dry barium sulfate suspension or a compound meglumine diatrizoate contrast agent, and 15 parts of traditional Chinese medicine extracts, wherein the traditional Chinese medicine extracts are prepared from the following active pharmaceutical ingredients: 35 parts of verbena, 25 parts of galangal, 35 parts of Chinese angelica, 35 parts of poria cocos, 25 parts of radix aucklandiae, 35 parts of immature bitter orange, 25 parts of fructus alpiniae oxyphyllae, 35 parts of scorched hawthorn fruit, 15 parts of balm, 15 parts of dried orange peel, 25 parts of Chinese yam, 15 parts of mint, and 25 parts of liquorice. The alimentary canal contrast agent can be used for accurate diagnosis of gastrointestinal diseases such as gastritis, gastric ulcer, gastric cancer, and duodenal bulbar ulcer, and has the efficacies of warming spleen and stomach for dispelling cold, promoting qi circulation to relieve pain, dredging the channel, promoting qi and blood circulation and the like, thereby having a conditioning effect on the stomach and intestines.

The invention discloses an electrostatic spinning nano-fiber film, and a preparation method and a finger detection method of the electrostatic spinning nano-fiber film. The finger detection method has the advantages of simplicity, rapidity, high sensitivity and no toxicity or harm, and dispenses with large instruments. The prepared fiber film has a wide range of practical objects, is rapid and convenient for operation, and is easy for mass production, and the raw material of the fiber film can be easily acquired. The invention mainly adopts the electrostatic spinning technology to prepare thepolymer-based dye hybridization nano-fiber film, and the film can be used for direct fingerprint extraction and rapid fingerprint display at a certain temperature. The electrostatic spinning nano-fiber film disclosed by the invention is a polymer nano-fiber film in which dyes are evenly dispersed, wherein, the mass ratio of polymer and the dyes is 2-100 to 1, and the nano-fiber diameter is uniform and ranges from 50nm to 1,000nm.

The invention provides a low-voltage transformer area acceptance distributed photovoltaic power generation capability evaluation method. The method comprises the following steps: acquiring an evaluation index value of the low-voltage transformer area acceptance distributed photovoltaic power generation capability; and according to the evaluation index value, obtaining an evaluation result of the low-voltage transformer area acceptance distributed photovoltaic power generation capability, wherein the evaluation indexes comprise main transformer exchange capacity, line exchange capacity, adaptability of low-voltage power grid relay protection, voltage deviation, voltage fluctuation, flicker, operation network loss, harmonic pollution, reliability and economy. The evaluation indexes providedby the invention not only comprise the aspects of electric energy quality such as main transformer exchange capacity, but also comprise the aspects of flexibility and economy of distributed photovoltaic power generation, and are comprehensive; meanwhile, according to the evaluation method provided by the invention, weights are allocated to all the evaluation indexes, evaluation is carried out by adopting a weighted average method, and low-voltage transformer area acceptance distributed photovoltaic power generation capability can be comprehensively and scientifically evaluated.

A snowmobile is disclosed, the snowmobile comprising a terrain visualization device. The device comprises a mounting structure fixed to the snowmobile, and a light emitting unit attached to the mounting structure. The light emitting unit is configured to project a predetermined contrast pattern onto terrain in front of the snowmobile in use. A method for driving a snowmobile across terrain is also disclosed, the method comprising projecting a predetermined contrast pattern onto the terrain using a light emitting unit while driving the snowmobile across the terrain, so that the topography of the terrain can be determined from distortion of the contrast pattern.

The invention relates to the technical field of biology, in particular to a PAP staining kit as well as a preparation method and a staining method thereof. The kit comprises a hematoxylin staining solution, an EA / OG staining solution, a buffer solution and a cleaning solution, wherein the hematoxylin staining solution comprises hematoxylin, sodium iodate, aluminum sulfate, sodium sulfite, ethanol, ethylene glycol, glycerol, acetic acid and water; the pH value of the hematoxylin staining solution is 2.0-3.0; the EA / OG staining solution comprises orange G, phosphotungstic acid, bright green SF light yellow, water-soluble eosin, sodium sulfite, ethanol, ethylene glycol, methanol, isopropanol, acetic acid and water; the pH value of the EA / OG staining solution is 5.0-6.0; and the pH value of the buffer solution is 6.8-7.2. The PAP staining solution is uniform in staining effect, clear in cell structure, bright in cell coloring, easy to clinically observe and diagnose, convenient to prepare, simple in staining step, stable in effect, clear in cell contrast and long in service life.

The invention provides an adaptive filter matching binocular camera module and a stereo matching method thereof. The binocular camera module comprises a binocular image feature matching module; the distance between two cameras of the binocular camera module is adjustable; filter adaptive matching modules are arranged on the two cameras; the filter self-adaptive matching module comprises a rotatingmodule provided with a polarization filter; the polarization filter is located at the light inlet end of the camera. Polarization filters of the filter adaptive matching module can be driven by the rotating module to rotate independently. The invention discloses a camera module capable of suppressing noise and improving image stereo matching by using a polarization filter in the field of binocular stereo vision application.

The invention provides a ceramic tile grading and color separation detection method and device, a medium and equipment. The method comprises the following steps: acquiring a to-be-identified tile image; preprocessing the ceramic tile image; inputting the pre-processed ceramic tile image into a ceramic tile grading and color separation detection network model, and outputting a ceramic tile grade type by the ceramic tile grading and color separation detection network model; the ceramic tile grading and color separation detection network model is a ceramic tile grading and color separation detection network model obtained by training and testing an initial convolutional neural network model. The method comprises the following steps: performing grading and color separation detection on tiles based on a convolutional neural network model, and performing grade type division on the quality of the tiles; manpower resources can be saved and the detection efficiency can be improved; the operation speed is high, and response requirements of a high-speed production line can be met; the classification accuracy is high, and errors and mistakes existing in manual classification can be avoided.

The invention discloses an application statistical analysis data recording device. The device comprises an analysis recording device main body, a recording analysis plate is arranged in the middle ofthe front end of the analysis recording device main body, a movable adjusting structure is arranged on the outer surface of the front end of the recording analysis plate, and a numerical value displaystructure is arranged on the outer surface of the lower end of the movable adjusting structure. The movable adjusting structure and a multi-color band achieves convenient display of the size of data,and people can conveniently distinguish different data according to the colors of the multi-color band, so people can conveniently identify and compare, and people can easily use; by analyzing comparison broken lines, it can be effectively guaranteed that the straightening state of analysis broken lines is recorded, people can conveniently compare the sizes of the data for analysis and recording;and accurate numerical values of the data can be conveniently and accurately known through a numerical value display structure, statistics and analysis of people on the data are guaranteed, and people can conveniently use.

The invention discloses a preparation method of an in-situ polymerized ninhydrin / polyvinyl alcohol nano-fiber composite film and a fingerprint detecting method. The preparation method comprises the following steps: compounding hydrochloric acid, glutaraldehyde, polyvinyl alcohol and ninhydrin into a spinning solution according to a certain molar ratio, and supporting the ninhydrin on a nano-fiberfilm by virtue of electrostatic spinning, thereby obtaining the in-situ cross-linked nano film material. Fingerprints can be clearly, sensitively and rapidly extracted. The nano fiber film disclosed by the invention has large specific surface area and can interact with amino acids in sweat, and the aim of displaying the fingerprints is achieved.

The invention relates to an acid-fast staining method and a quality monitoring method, and belongs to the technical field of tissue staining. The method comprises a formaldehyde detection step in the staining incubation process, when the formaldehyde concentration in the incubation environment is detected to be smaller than a threshold value, the staining process is judged to be qualified, and otherwise, the staining process is judged to be unqualified. By adopting the method, the quality of the acid-resistant staining process can be monitored, the problem of incapability of decoloring is avoided, and the detection accuracy is improved.

The invention relates to a medical image noise reduction method and device, and the method comprises the steps: obtaining the scanning data of a scanning object, reconstructing a medical image of thescanning object according to the scanning data, obtaining a pharmacokinetic parameter image according to the scanning data and / or the medical image, and obtaining a reference image according to the medical image, and finally, denoising the pharmacokinetic parameter image according to the reference image to obtain a denoised pharmacokinetic parameter image. According to the invention, the method solves problems in the related technologies that the image features calculated according to the pharmacokinetic parameter image are not accurate enough and the noise reduction effect is poor because thenoise level of the pharmacokinetic parameter image is higher, maintains the focus contrast and contour clearness, and reduces the noise of the pharmacokinetic parameter image.