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45 results about "Video assessment" patented technology
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Video evaluation device, frame rate determination device, video process device, video evaluation method, and video evaluation program
ActiveUS20060056515A1Reduce the amount of dataReduce data consumptionTelevision system detailsImage analysisImage extractionTemporal change
A frame rate is determined in accordance with the smoothness in movement of a video. An amount of change detection section extracts an amount of change based on a plurality of frame pictures included in an input video signal input as a moving picture signal from the outside and outputs an amount of change to an evaluation value calculation section. The evaluation value calculation section computes an amount of change in time between each of the frame pictures based on the amount of change and the time interval between frame pictures based on frame rate information and evaluates an evaluation value for evaluating the smoothness in movement of an input video based on the amount of change in time. The evaluation value is output to the outside as a factor for determining a frame rate.
Owner:NTT DOCOMO INC
Direct broadcast video assessment method and device
InactiveCN106604050AAccurate heatAllocation is accurateSelective content distributionTelecommunicationsVideo assessment
The invention discloses a direct broadcast video assessment method and device. The method comprises the steps: obtaining the scoring information of each viewer terminal, which watches a direct broadcast video, for a target direct broadcast video; and carrying out the assessment of the rating degree of the target direct broadcast video according to the scoring information. According to the technical scheme of the invention, when the scoring information of each viewer terminal, which watches the direct broadcast video, for the target direct broadcast video is obtained, the method can carry out the assessment of the rating degree of the target direct broadcast video according to the scoring information, thereby quantifying the rating degree of the target direct broadcast video, and enabling the rating degree of the target direct broadcast video to be more accurate so as to carry out more targeted related operation based on the rating degree of the target direct broadcast video.
Owner:TVMINING BEIJING MEDIA TECH
Video quality evaluation method and device, electronic equipment and computer storage medium
ActiveCN111193923AIn line with intuitive feelingVideo quality is accurateTelevision systemsSelective content distributionTime domainComputer graphics (images)
The invention provides a video quality evaluation method and device, electronic equipment and a computer storage medium. The method comprises the steps: obtaining a to-be-evaluated video; determiningvideo evaluation parameters of the to-be-evaluated video, wherein the video evaluation parameters comprise a time domain evaluation parameter and a space domain evaluation parameter; and determining the video quality of the to-be-evaluated video according to the video evaluation parameters. According to the scheme of the invention, video evaluation parameters can be evaluated based on two dimensions of a time domain and a space domain, so as to evaluate the video quality of the to-be-evaluated video; due to the fact that the influence of the video evaluation parameters of different dimensionson the video quality can be reflected more comprehensively from the two dimensions of the time domain and the space domain and the time domain evaluation parameter and the spatial domain evaluation parameter can better accord with the visual feeling of a human eye vision system on the video quality, the quality of the to-be-evaluated video is evaluated based on the time domain evaluation parameterand the spatial domain evaluation parameter, and the obtained video quality is more accurate.
Owner:TENCENT TECH (SHENZHEN) CO LTD +1
Video evaluation apparatus, spatio-temporal frequency analyzing apparatus, video evaluation method, spatio-temporal frequency analyzing method, video evaluation program, and spatio-temporal frequency analyzing program
InactiveUS8064638B2Increase ratingsLow evaluationImage enhancementTelevision system detailsPattern recognitionVideo assessment
An object is to provide a video evaluation apparatus and video evaluation method capable of appropriately evaluating a video consisting of a plurality of frame images, using an objective standard. The object is achieved as follows. A reference characteristic, which is a predetermined spatio-temporal frequency characteristic about a video, is stored, and a video characteristic analyzer 101 calculates a spatio-temporal frequency characteristic of a target video consisting of a plurality of frame images. Then a video evaluation determiner 102 calculates an evaluated value of the target video, based on a relative relation between the calculated spatio-temporal frequency characteristic and the stored reference characteristic. This enables appropriate evaluation of the video.
Owner:NTT DOCOMO INC
Method and Apparatus for 3D Image and Video Assessment
A method and apparatus for assessing 3 dimensional video. The method includes computing at least one of 3 dimensional quality and geometric quality, and combining two quality values for overall 3 dimensional quality assessment.
Owner:TEXAS INSTR INC
Hot video evaluation method and system
ActiveCN108966014AReflect the real heatThe assessment results are objective and accurateSelective content distributionEdge nodeVideo assessment
The invention provides a hot video evaluation method and system. The hot video evaluation method comprises the steps of recording effective watching number of times of a preheating video in a set period, wherein the preheating video is a video, the video on demand number of times of which is greater than a first set threshold in the set period, and effective watching refers to a watching behaviorcharacterized in that a duration of continuously watching the preheating video is greater than a second preset threshold; calculating a watching heat value of the preheating video according to the effective watching number of times of the preheating video; and evaluating whether the preheating video is a hot video according to the effective watching number of times and the watching heat value of the preheating video. The hot video evaluation method considers the video on demand number of times, effective watching number of times and a watching heat value of a video, so that the hot video evaluation method can reflect the actual heat level of the video more objectively, and the evaluation result of the hot video is more objective and accurate. The hot video is allocated to an edge node, notwasting storage resource of the edge node but relieving pressure of a center node of a content delivery network.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD
Determination method and device of video assessment set, and electronic equipment
ActiveCN109672936AShorten the timeCharacter and pattern recognitionSelective content distributionStart timeVideo assessment
Owner:上海众源网络有限公司
System and Method for Automatic Evaluation of Gait Using Single or Multi-Camera Recordings
Systems and methods in accordance with many embodiments of the invention include a motion evaluation system that trains a model to evaluate motion (such as, but not limited to, gait) through images (or video) captured by a single image capture device. In certain embodiments, motion evaluation includes predicting clinically relevant variables from videos of patients walking from keypoint trajectories extracted from the captured images.
Owner:THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIV +1
Video quality evaluation method, device and apparatus and storage medium
ActiveCN111401100AImprove timelinessImprove accuracyImage enhancementImage analysisPattern recognitionVideo assessment
The invention discloses a video quality evaluation method, device and apparatus and a storage medium. The method comprises the following steps: firstly, decoding a video to obtain an image sequence and audio information, then extracting an action feature vector and a face feature vector in the image sequence, extracting an audio feature vector in the audio information, and constructing a video feature vector according to at least one of the action feature vector, the face feature vector and the audio feature vector; and finally, determining a quality score of a to-be-evaluated video accordingto the video feature vector. According to the embodiment, the quality score of the to-be-evaluated video can be determined according to at least one or more vectors of the action feature vector, the face feature vector and the audio feature vector extracted from the to-be-evaluated video, the real-time performance of video quality evaluation can be realized through the video, and the accuracy of high-quality video evaluation is improved.
Owner:BIGO TECH PTE LTD
Video quality assessment at a bitstream level
InactiveCN104396238AError detection/prevention using signal quality detectorTelevision systemsPattern recognitionError concealment
A macroblock in a video sequence may be undecodable because the corresponding compressed data is lost or the syntax is out of synchronization. An undecodable macroblock may be concealed using error concealment technique. The level of initial visible artifacts caused by undecodable macroblocks may be estimated as a function of motion magnitude, error concealment distance, and / or residual energy. The initial visible artifacts may propagate spatially or temporally to other macroblocks through prediction. Considering both initial visible artifacts and propagated artifacts, levels of overall artifacts may be estimated for individual macroblocks. The visual quality for the video sequence can then be estimated by pooling the macroblock level artifact levels.
Owner:THOMSON LICENSING SA
A Video Evaluation and Recommendation System
The invention provides a video evaluation and recommendation system, which comprises a mode selection module, a video evaluation module, a video recommendation module, a self-made content evaluation and recommendation database and a self-made content history database. Wherein, a mode selection module is used for acquiring an evaluation mode instruction or a recommendation mode instruction issued by a user terminal; the video evaluation module is used for calling the data of the self-made content evaluation recommendation database and the standard data of the self-made content history databaseaccording to the evaluation mode instruction to evaluate the evaluation object and sending the evaluation result to the user terminal; the video recommendation module is used for calling the data of the self-made content evaluation recommendation database and the standard data of the self-made content history database according to the recommendation mode instruction, calculating and obtaining theself-made content which meets the filtering condition, and sending the filtering recommendation result to the user terminal.
Owner:北京腾信创新网络营销技术股份有限公司
Method and system for video evaluation in the presence of cross-chroma interference
InactiveUS20070013815A1Television system detailsColor television with pulse code modulationPattern recognitionVideo sequence
Described herein is a method and system for video sequence evaluation in the presence of cross-chroma interference. When the luma and chroma components in an analog video sequence are separated, the luma component may add interference to the chroma component. This is called cross-chroma interference. In the evaluation of the video sequence, the cross-chroma interference may be interpreted as motion, noise, or other artifacts. By reducing the cross-chroma interference during the evaluation, motion and noise can be identified with greater probability. The proper identification can aid motion estimators used in video coding and motion compensated temporal filtering, and it can aid video filters that do not utilize motion compensation.
Owner:AVAGO TECH INT SALES PTE LTD
Objective video quality assessment method based on chromaticity co-occurrence matrix weighting
InactiveCN104010189AImprove relevanceReduce computational complexityTelevision systemsComputation complexityCo-occurrence
The invention discloses an objective video quality assessment method based on chromaticity co-occurrence matrix weighting. The method includes the steps that firstly, a quaternion matrix with the dimension being 8*8 is used for describing characteristics, based on the time domain and the space domain, of 8*8 image blocks in a reference image and characteristics, based on the time domain and the space domain, of 8*8 image blocks in a distortion image; then the cosine of an included angle between singular value vectors of the characteristics, based on the time domain and the space domain, of two image blocks, which correspond to each other in position, in the reference image and the distortion image is obtained, and the cosine serves as the difference degree between the two image blocks, which correspond to each other in position, in the reference image and the distortion image; objective assessment values of the image blocks in the distortion image are obtained through the difference degree and weighted values of chromaticity co-occurrence matrixes of the image blocks in the distortion image, and therefore the objective assessment value of the distortion image and the objective assessment value of distortion video are obtained. According to the method, computation complexity in the video assessment process is low, and the relevance between an objective assessment result and subjective perception can be effectively improved.
Owner:NINGBO UNIV
Systems and Methods for Estimation of Parkinson's Disease Gait Impairment Severity from Videos Using MDS-UPDRS
PendingUS20210386359A1Reduce the impactReduce impactImage enhancementImage analysisRadiologyVideo assessment
Many embodiments of the invention include systems and methods for evaluating motion from a video, the method includes identifying a target individual in a set of one or more frames in a video, analyzing the set of frames to determine a set of pose parameters, generating a 3D body mesh based on the pose parameters, identifying joint positions for the target individual in the set of frames based on the generated 3D body mesh, predicting a motion evaluation score based on the identified join positions, providing an output based on the motion evaluation score.
Owner:THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIV
Apparatus and system for virtual camera configuration and selection
A system and method for virtual camera configuration and selection. For example, one embodiment of a system comprises: a decode subsystem comprising circuitry to concurrently decode a plurality of video streams captured by cameras at an event to generate decoded video streams from a perspective of corresponding virtual cameras (VCAMs); video evaluation logic to apply at least one video quality metric to determine a quality value for the decoded video streams or a subset thereof, and to rank the decoded video streams based, at least in part, on the quality values associated with the decoded video streams; preview logic to provide the decoded video streams or modified versions thereof to one or more computing devices accessible to one or more video production team members and to further provide the quality values and / or the rank generated by the video quality evaluation logic; stream selection hardware logic to select a subset of the plurality of decoded video streams based on input from the one or more video production team members; and transcoder hardware logic to transcode the subset of the plurality of decoded video streams for live transmission over a public or private network.
Owner:INTEL CORP
VR video quality evaluation method and device
InactiveCN111953959AImprove accuracyTelevision systemsDigital video signal modificationEvaluation resultComputer graphics (images)
The invention discloses a VR video quality evaluation method, which comprises the steps of obtaining a code rate, a frame rate, a resolution and a TI of a VR video, and determining an average subjective opinion score MOS of the VR video according to the code rate, the frame rate, the resolution and the TI of the VR video, the MOS of the VR video being used for representing the quality of the VR video. The invention further discloses an evaluation device. By adopting the embodiment of the invention, the accuracy of the VR video evaluation result can be improved.
Owner:HUAWEI TECH CO LTD
Gradient similarity video quality evaluation method based on low-frequency significance
InactiveCN108462872AEffective assessmentImprove consistencyTelevision systemsRandom noiseVideo assessment
The invention relates to a gradient similarity video quality evaluation method based on low-frequency significance, which comprises the following steps of performing denoising processing on a video, decomposing the video into a prediction part and a noise part; performing video quality evaluation on the noise part to obtain a video quality score of the noise part; performing pixel-level gradient video quality evaluation, block grade video quality evaluation and visual significant attention video quality evaluation on the prediction part respectively, so as to obtain a video quality score of the prediction part; and obtaining a final quality evaluation score through synthesis of the video quality score of the noise part and the prediction part. By optimizing noise removal processing, the influence of random noise on video evaluation is effectively reduced. The invention provides an image content distortion and brightness distortion assessment simulation scheme, a visual salience attention similarity evaluation scheme and an overall video quality evaluation scheme. Compared with a traditional method, the gradient similarity video quality evaluation method in the invention has higherconsistency with a human visual system evaluation system.
Owner:NANJING UNIV OF POSTS & TELECOMM
Video encoding parameter combination determination method and device and server
PendingCN113873291ALow costReduce dependencySelective content distributionImaging qualityComputer graphics (images)
The embodiment of the invention provides a video encoding parameter combination determination method and device and a server, and relates to the technical field of cloud calculation and video image processing. The video evaluation model performs video evaluation through the display picture parameters of the target test video in different operation environments and the resource occupancy rate of the target test video, and can screen out the target test video with a better display picture and a smaller resource occupancy rate from numerous target test videos. The video encoding parameter combination corresponding to the target test video is adopted for target type application encoding, it can be guaranteed that the coded video has good display image quality and occupies few resources when being displayed on the client side, and therefore the cost of cloud application manufacturers can be reduced.
Owner:GUANGZHOU HUYA TECH CO LTD
Video quality evaluation method and device, electronic equipment and computer storage medium
ActiveCN114584849AIn line with intuitive feelingVideo quality is accurateTelevision systemsSelective content distributionTime domainComputer graphics (images)
The invention provides a video quality evaluation method and device, electronic equipment and a computer storage medium. The method comprises the following steps: acquiring a to-be-evaluated video; determining video evaluation parameters of the to-be-evaluated video, wherein the video evaluation parameters comprise time domain evaluation parameters and space domain evaluation parameters; and determining the video quality of the to-be-evaluated video according to the video evaluation parameters. Through the scheme, the video quality of the to-be-assessed video can be assessed based on the video assessment parameters of the two dimensions of the time domain and the space domain, and the influence of the video assessment parameters of different dimensions on the video quality can be reflected more comprehensively from the two dimensions of the time domain and the space domain, so that the video quality of the to-be-assessed video is assessed. Moreover, the time domain evaluation parameter and the space domain evaluation parameter can better meet the visual feeling of a human vision system on the video quality, so that the quality of the video to be evaluated is evaluated based on the time domain evaluation parameter and the space domain evaluation parameter, and the obtained video quality is more accurate.
Owner:TENCENT TECH (SHENZHEN) CO LTD +1
Mobile video QoE (Quality of Experience) evaluation method based on adaptive degree
ActiveCN114071240AAccurate evaluationInnovative ideasSelective content distributionHigh level techniquesNegative feedbackResource assignment
The invention discloses a mobile video QoE (Quality of Experience) evaluation method based on a self-adaption degree, which comprises the following specific steps: user priority: in order to construct the self-adaption-based QoE evaluation method, a base station can carry out resource allocation adjustment according to the QoE; the adaptation degree of wireless resource allocation and code rate selection: calculating the adaptation degree Matchn (t) of wireless resource allocation and code rate selection by using Bn, j (t) and time, j (t); in the prior art, the QoE is estimated by depending on traditional network QoS parameters, and the method combines a quantitative index of a user side with wireless resource allocation of a base station side, and carries out QoE evaluation from a self-adaptive perspective. According to the method, the priority of the radio resource demand urgency degree of the user is adopted to indicate a direction for radio resource allocation, and then the radio resource share of the user is determined through the user code rate selection and the radio resource allocation suitability degree. Through real-time measurement, positive feedback is given in time when the downloading rate of the user is matched with code rate selection, negative feedback is given in time when the downloading rate is not matched with the code rate selection, and the obtained QoE score is more accurate in video service evaluation.
Owner:NORTH CHINA UNIVERSITY OF TECHNOLOGY
Method and system for video evaluation in the presence of cross-chroma interference
InactiveUS8107011B2Television system detailsColor television with pulse code modulationPattern recognitionVideo sequence
Described herein is a method and system for video sequence evaluation in the presence of cross-chroma interference. When the luma and chroma components in an analog video sequence are separated, the luma component may add interference to the chroma component. This is called cross-chroma interference. In the evaluation of the video sequence, the cross-chroma interference may be interpreted as motion, noise, or other artifacts. By reducing the cross-chroma interference during the evaluation, motion and noise can be identified with greater probability. The proper identification can aid motion estimators used in video coding and motion compensated temporal filtering, and it can aid video filters that do not utilize motion compensation.
Owner:AVAGO TECH INT SALES PTE LTD
Video quality evaluation method and system, computer equipment and storage medium
ActiveCN113837047ATroubleshoot quality assessment issuesEfficiently capture space-time dependent featuresKernel methodsCharacter and pattern recognitionCode moduleData set
The invention provides a video quality evaluation method and system, computer equipment and a storage medium, and the method comprises the steps: obtaining a video data set, and randomly dividing the video data set into a training set and a test set according to a preset proportion; inputting the training set into a preset video quality evaluation network for training to obtain a video quality evaluation model, the video quality evaluation network sequentially comprising a preprocessing module, an attention coding module and a vector regression module, smf the attention coding module comprising a plurality of space-time attention coding modules; and predicting the test set by using the video quality evaluation model to obtain a corresponding predicted video quality score. According to the method, the quality evaluation problem of the naturally distorted video is effectively solved, the long-range space-time dependence characteristic in the video sequence is efficiently captured, the training convergence speed and the video evaluation performance are improved, and the application field of the Transform architecture is expanded.
Owner:GUANGZHOU UNIVERSITY
Method and device for monitoring a baby for interaction
ActiveUS10694956B2Avoid erroneous resultEasy to installImage enhancementImage analysisInfraredMedicine
A method for video evaluation of the heart rate and / or respiratory rate of a baby, in particular under dim or nocturnal conditions, in a device comprising a video camera and a source of infrared light, the method comprising the steps of:A1—illuminating the baby with the infrared source,A2—capturing video images of the baby,B1—determining the position of the baby's head by finding an ellipse forming an outline of the head,B2—identifying an area of interest centered on a selected ellipse,C—evaluating, by plethysmographic analysis of the area of interest, the heart rate and / or respiratory rate of the baby,and associated system.
Owner:WITHINGS SAS
A method and system for unpopular video evaluation
ActiveCN108965909BReflect the true degree of unpopularityThe assessment results are objective and accurateSelective content distributionEvaluation resultEngineering
Owner:CHINA UNITED NETWORK COMM GRP CO LTD
Method for realizing transcoding test evaluation by using video features
PendingCN112653892AAchieve cumulative combinationQuality improvementDigital video signal modificationSelective content distributionComputer graphics (images)Algorithm
The invention discloses a method for realizing transcoding test evaluation by using video features. The method specifically comprises the following steps: (1) analyzing a source file, obtaining feature information through a source file feature analysis module, and realizing video length segmentation through the feature information; (2) combining just analyzed source video feature information to obtain transcoding parameters meeting requirements through a transcoding parameter collection and analysis module; (3) matching the video clips obtained in the step (1) with the transcoding parameters obtained in the step (2), and realizing quality analysis through a result obtained by transcoding of a feature clip transcoding module; and (4) after video evaluation is carried out through a transcoding output quality analysis module, if the video quality evaluation is poor, returning to the step (2), and if the video quality evaluation is good, transcoding and outputting a comparison source video, and outputting a file to realize analysis and evaluation. The beneficial effects of the invention are that the method achieves the cumulative combination of data, and achieves the final high-quality and low-code-rate effect of a video.
Owner:HANGZHOU ARCVIDEO TECHNOLOGY CO LTD
City-level monitoring video quality evaluation method and system
PendingCN114584758AEfficient allocationQuality Assessment Behavior FastTelevision systemsEvaluation resultSurveillance camera
The invention discloses a city-level monitoring video quality evaluation method and system. The method comprises the following steps: obtaining a quality evaluation task; performing task scheduling according to the quality evaluation task and the evaluation processing time to obtain a task scheduling result; performing task allocation according to the task scheduling result and the task important factors to obtain a task allocation result; based on the task allocation result, evaluating the performance of each monitoring camera to obtain a quality evaluation detection result of the single monitoring camera; and based on the quality evaluation detection result of the single monitoring camera and the scores of the monitoring videos in other areas, performing overall evaluation on the monitoring videos in the quality evaluation task to obtain a city-level monitoring video quality evaluation result. According to the method, the to-be-processed monitoring cameras are optimally allocated, so that the monitoring video quality evaluation behavior can be quickly carried out, and the city-level monitoring video evaluation speed can be accelerated.
Owner:NANJING UNIV OF POSTS & TELECOMM
An Objective Evaluation Method of Video Quality Based on Chroma Co-occurrence Matrix Weighting
InactiveCN104010189BImprove relevanceReduce computational complexityTelevision systemsPattern recognitionComputation complexity
The invention discloses an objective video quality assessment method based on chromaticity co-occurrence matrix weighting. The method includes the steps that firstly, a quaternion matrix with the dimension being 8*8 is used for describing characteristics, based on the time domain and the space domain, of 8*8 image blocks in a reference image and characteristics, based on the time domain and the space domain, of 8*8 image blocks in a distortion image; then the cosine of an included angle between singular value vectors of the characteristics, based on the time domain and the space domain, of two image blocks, which correspond to each other in position, in the reference image and the distortion image is obtained, and the cosine serves as the difference degree between the two image blocks, which correspond to each other in position, in the reference image and the distortion image; objective assessment values of the image blocks in the distortion image are obtained through the difference degree and weighted values of chromaticity co-occurrence matrixes of the image blocks in the distortion image, and therefore the objective assessment value of the distortion image and the objective assessment value of distortion video are obtained. According to the method, computation complexity in the video assessment process is low, and the relevance between an objective assessment result and subjective perception can be effectively improved.
Owner:NINGBO UNIV
Human evaluation and approval of video appropriate for viewing by children
InactiveUS20200413114A1Ensure appropriatenessVideo data clustering/classificationSelective content distributionWeb siteVideo assessment
A method for evaluating video to ensure appropriateness for viewing by children. A video submission computer is utilized to upload unevaluated video to a video evaluation and display website installed on a server computer. The unevaluated video is then downloaded from the website to a video evaluation computer where a human being views the video for the purpose of evaluating the video for appropriateness for children. The human being will then evaluate the video to either approve the video or reject the video. If the human being cannot decide whether to approve or reject the video, in a preferred embodiment the human being may refer the decision to a supervisor or a secondary review team. If the human being approves the video, the video is transferred to an approved video database where it may be downloaded by a child for viewing. If the human being rejects the video, the video is transferred to a rejected video database.
Owner:HERNANDEZ DAVID
Soil mass structure evolution real-time online evaluation device and method based on driverless car
InactiveCN106027864ADisturbance does not occurImprove test accuracyTelevision system detailsEarth material testingRemote controlVideo assessment
The invention discloses a soil mass structure evolution real-time online evaluation device and method based on a driverless car. The device comprises the driverless car, a telescopic unit, a micro video image collection unit, a first signal receiver, a second signal receiver, and a remote control computer. The method comprises the steps of firstly establishing a micro video gray level image database, then establishing a corresponding relationship between substances and gray value intervals in the database, then making statistics on the number of pixels in the gray value interval representing each of the substances in a micro video gray level image, establishing the relationship between the number and a corresponding substance content and form thereof, and at last, determining actual characteristic parameters of a to-be-tested soil mass according to above relationship, thereby determining a development state of the soil mass. According to the soil mass structure evolution real-time online evaluation device and method based on the driverless car disclosed by the invention, site soil mass micro video evaluation is carried out directly, so the test precision is high; the micro video image is adopted, so that the identification on soil mass composition and evolution thereof is more accurate; and the device and the method can carry out wide-range long-term continuous real-time online monitoring on the soil mass in any region, thereby obtaining an evolution rule of the soil mass in the region.
Owner:WUHAN UNIV
Microscopic video image monitoring and assessing method of agglomeration and discretion degree of soil particles
InactiveCN106018196ADisturbance does not occurImprove test accuracyParticle size analysisPermeability/surface area analysisVideo assessmentLaboratory test
The invention discloses a microscopic video image monitoring and assessing method of the agglomeration and discretion degree of soil particles. The method comprises the following steps: establishing a microscopic video grey scale image database, establishing a corresponding relation between every substance and the grey level interval in the database, carrying out statistics on the relation between the quantity of pixels in the grey level interval, representing all substances and the content or form of the substances in the microscopic video grey scale image, and determining the practical characteristic parameters of soil to be detected according to the relation in order to determine the agglomeration and discretion degree of soil particles. The method allows onsite microscopic video assessment of a soil sample to be directly carried out without a process from onsite soil disturbance sampling to laboratory test; the agglomeration and discretion process details of the soil particles can be tracked in real time by adopting the microscopic video image; and soil in a region can be continuously monitored in real time for a long term through the microscopic video image monitoring and assessing method of soil evolution in order to obtain the evolution rule of the soil in the region.
Owner:WUHAN UNIV
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