CN103048257A - Sandy soil type identification and particle component analysis device - Google Patents

Sandy soil type identification and particle component analysis device Download PDF

Info

Publication number
CN103048257A
CN103048257A CN2012105636495A CN201210563649A CN103048257A CN 103048257 A CN103048257 A CN 103048257A CN 2012105636495 A CN2012105636495 A CN 2012105636495A CN 201210563649 A CN201210563649 A CN 201210563649A CN 103048257 A CN103048257 A CN 103048257A
Authority
CN
China
Prior art keywords
sand
module
sandy soil
subsystem
particle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2012105636495A
Other languages
Chinese (zh)
Inventor
常方强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huaqiao University
Original Assignee
Huaqiao University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huaqiao University filed Critical Huaqiao University
Priority to CN2012105636495A priority Critical patent/CN103048257A/en
Publication of CN103048257A publication Critical patent/CN103048257A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

本发明提出一种砂土种类识别与颗粒组分分析装置,包括对砂土进行摄影以获取砂土图像的摄影系统,处理砂土图像得到砂土颗粒边界化图形的图像处理系统;集量测、求解、统计、判别和分析功能于一体的数据分析处理系统,得到砂土的种类、不均匀系数、曲率系数、绘制颗粒组分曲线和砂土颗粒级配。采用上述技术方案后,本发明的砂土种类识别与颗粒组分分析装置,由于其将各功能系统依次工作配合连接在一起,各系统利用各自的功能并依照相互配合工作的连接关系进行工作,并最终获得砂土的种类和颗粒组分状况,与现有技术相比,其免去取样、运输、筛分和计算分析等一系列复杂的人工操作,使用方便且确定砂土性质准确、快速。

Figure 201210563649

The invention proposes a kind of sandy soil type identification and particle component analysis device, including a photographic system for taking pictures of sandy soil to obtain sandy soil images, an image processing system for processing sandy soil images to obtain boundary graphics of sandy soil particles; It is a data analysis and processing system that integrates functions of solving, statistics, discrimination and analysis, and obtains the type of sand, unevenness coefficient, curvature coefficient, draws particle composition curve and sand particle gradation. After adopting the above-mentioned technical scheme, the sandy soil type identification and particle component analysis device of the present invention, because it connects each functional system sequentially and cooperates together, each system utilizes its own function and works according to the connection relationship of mutual cooperation, And finally obtain the type and particle composition of the sand. Compared with the existing technology, it eliminates a series of complicated manual operations such as sampling, transportation, screening and calculation analysis. It is easy to use and determines the properties of the sand accurately and quickly. .

Figure 201210563649

Description

A kind of sand kind identification and grain fraction analytical equipment
Technical field
The present invention relates to the engineering geology field, be specifically related to a kind of sand kind identification and grain fraction analytical equipment.
Background technology
Sand is a kind of common engineering foundation soil, the character such as the character of engineering and the kind of sand and sand grains component are closely related, such as the coarse sand bearing capacity of the identical packing height than fine sand, under the equal conditions coarse sand and fine sand relatively, more difficult generation sand liquefaction phenomenon etc.Therefore, in engineering investigation, need to take a sample and sieve in order to it is detected test sand, and then obtain the engineering properties situations such as sand kind, grain fraction, nonuniformity coefficient, sand coefficient of curvature and grain composition.At present, obtain these character and need to carry out on-site sampling, transport the sand sample back testing laboratory, then carry out size analysis, carry out the sequence of operations such as sand grains component analysis again, this need to spend a large amount of manpower and materials, has brought a lot of troubles to people.
Given this, this case the inventor further investigate the problems referred to above, then has this case to produce.
Summary of the invention
The object of the present invention is to provide the accurately and rapidly sand kind identification of a kind of simple to operate, easy to use and definite sand character and grain fraction analytical equipment.
In order to achieve the above object, the present invention adopts such technical scheme:
A kind of sand kind identification and grain fraction analytical equipment, comprise the camera chain of sand being photographed to obtain the sand image, process the sand image obtaining the image processing system of sand grains border figure, and have the measurement subsystem, find the solution the data analysis disposal system of subsystem, statistics sub system, differentiation subsystem and analyzing subsystem;
Wherein, above-mentioned measurement subsystem measures the area of the sand grains image after the processing of border, the above-mentioned subsystem of finding the solution is with the circle of sand grains image equivalence one-tenth with homalographic, and obtain circular diameter, be the equivalent grain size of sand grains, the particle size range that has setting in the above-mentioned statistics sub system, and the area that counts the particle size range sand grains image that is positioned at this setting accounts for the ratio of all sand grains image areas, above-mentioned differentiation subsystem determines the sand kind according to embedded sand criteria for classification table module, and above-mentioned analyzing subsystem has sand nonuniformity coefficient computing module, sand coefficient of curvature computing module, sand grains composition curve drafting module and sand grains grading analysis module;
Above-mentioned camera chain, image processing system and data analysis disposal system are worked successively and are cooperated together.
Above-mentioned sand criteria for classification table module is selected from one or more in national standard " criteria for classification of soil " module, national standard " Code for investigation of geotechnical engineering " module, industry standard " port engineering geological mapping standard " module, Ministry of Water Resources's industry standard " earthwork test rule " module, industry standard " railway bridges and culverts ground and foundation design code " module, industry standard " highway earthwork test rule " module.
Above-mentioned camera chain has camera lens, is embedded with light source at the inwall of described camera lens.
Above-mentioned data analysis disposal system has display module.
After adopting technique scheme, sand kind identification of the present invention and grain fraction analytical equipment, comprise the camera chain of sand being photographed to obtain the sand image, process the sand image obtaining the image processing system of sand grains border figure, and integrate the measurement subsystem, find the solution the data analysis disposal system of subsystem, statistics sub system, differentiation subsystem and analyzing subsystem; The measurement subsystem measures the area of the sand grains image after the processing of border, find the solution subsystem with the circle of sand grains image equivalence one-tenth with homalographic, and obtain circular diameter, be the equivalent grain size of sand grains, the particle size range that has setting in the statistics sub system, and count the ratio that the area of setting particle size range sand grains image accounts for all sand grains image areas that is positioned at, differentiate subsystem and determine the sand kind according to embedded sand criteria for classification table module, analyzing subsystem has sand nonuniformity coefficient computing module, sand coefficient of curvature computing module, sand grains composition curve drafting module and sand grains grading analysis module can obtain the nonuniformity coefficient of sand, coefficient of curvature, grain fraction curve and sand grains grating; Camera chain, image processing system and data analysis disposal system are worked successively and are cooperated together, each system's utilization separately function and carry out work according to the annexation of the work of cooperatively interacting, compared with prior art, sand kind identification of the present invention and grain fraction analytical equipment, only need by camera chain sand to be carried out image acquisition at the scene, follow-up image processing system and data analysis disposal system just can be analyzed judgement to this sand image automatically, and then obtain the sand kind, grain fraction, nonuniformity coefficient, the engineering properties situations such as sand coefficient of curvature and grain composition, remove sampling from, transportation, the manually-operated of the series of complexes such as screening and computational analysis, realized robotization, simple to operate, easy to use and definite sand character is accurate, fast.
Description of drawings
Fig. 1 is easy structure synoptic diagram of the present invention;
Fig. 2 is the structural representation of camera chain of the present invention.
Among the figure:
1-camera chain 11-camera lens
111-light source 2-image processing system
3-data analysis disposal system 31-measures subsystem
32-finds the solution subsystem 33-statistics sub system
34-differentiates subsystem
341-national standard " criteria for classification of soil " is module (GBJ145-90)
342-national standard " Code for investigation of geotechnical engineering " is module (GB50021-2001)
343-industry standard " port engineering geological mapping standard " is module (JTJ240-97)
344-Ministry of Water Resources industry standard " earthwork test rule " is module (SL237-1999)
345-industry standard " railway bridges and culverts ground and foundation design code " is module (TB1002.5-2005)
346-industry standard " highway earthwork test rule " (JTJ 051-93) module
The 35-analyzing subsystem
351-sand nonuniformity coefficient computing module
352-sand coefficient of curvature computing module
353-sand grains composition curve drafting module
354-sand grains grading analysis module
The 36-display module
Embodiment
Be described in detail technical scheme of the present invention below by specific embodiment in order further to explain.
A kind of sand kind identification of the present invention and grain fraction analytical equipment as illustrated in fig. 1 and 2, comprise camera chain 1, image processing system 2, and data analysis disposal system 3.
Camera chain 1 has the function of sand being photographed to obtain the sand image, and image processing system 2 has the sand grains on the sand image is carried out the border processing, obtains the function of the boundary shape of each sand grains.Data analysis disposal system 3 collection measure, find the solution, statistics, differentiation and analytic function are in one, comprise and measure subsystem 31, find the solution subsystem 32, statistics sub system 33, differentiate subsystem 34 and analyzing subsystem 35, wherein, measurement subsystem 31 measures the area of the sand grains image after the processing of border, find the solution subsystem 32 with the circle of sand grains image equivalence one-tenth with homalographic, and obtain circular diameter, be the equivalent grain size of sand grains, the particle size range that has setting in the statistics sub system 33, and the area that counts the particle size range sand grains image that is positioned at this setting accounts for the ratio of all sand grains image areas, differentiates subsystem 34 and determines the sand kind according to embedded sand criteria for classification table module; Camera chain 1, image processing system 2 and data analysis disposal system 3 are worked successively and are cooperated together.
Analyzing subsystem 35 is analyzed nonuniformity coefficient, coefficient of curvature, drafting grain fraction curve and the sand grains grating of sand, and structure is particularly:
Analyzing subsystem 35 has sand nonuniformity coefficient computing module 351, the inventor writes entity module with sand nonuniformity coefficient manual calculations method commonly used in the industry, obtain sand nonuniformity coefficient computing module 351, sand nonuniformity coefficient computing module 351 makes data analysis disposal system 3 have the function of calculating the sand nonuniformity coefficient.
Analyzing subsystem 35 has sand coefficient of curvature computing module 352, the inventor writes entity module with sand coefficient of curvature manual calculations method commonly used in the industry, obtain sand coefficient of curvature computing module 352, sand coefficient of curvature computing module 352 makes data analysis disposal system 3 have the function of calculating the sand coefficient of curvature.
Analyzing subsystem 35 has sand grains composition curve drafting module 353, the inventor writes entity module with sand grains composition curve method for drafting commonly used in the industry, obtain sand grains composition curve drafting module 353, sand grains composition curve drafting module 353 makes data analysis disposal system 3 have the function of calculating the sand coefficient of curvature.
Analyzing subsystem 35 has sand grains grading analysis module 354, the inventor writes entity module with sand grains grading analysis method commonly used in the industry, obtain sand grains grading analysis module 354, sand grains grading analysis module 354 makes data analysis disposal system 3 have analysis sand grains grating and obtains the function of accordingly result.
Preferably, be the function of the identification sand kind of specific implementation data analysis disposal system 3, alternative sand criteria for classification table module has (GBJ145-90) module 341 of national standard " criteria for classification of soil ", national standard " Code for investigation of geotechnical engineering " is module 342 (GB50021-2001), industry standard " port engineering geological mapping standard " is module 343 (JTJ240-97), Ministry of Water Resources's industry standard " earthwork test rule " is module 344 (SL237-1999), industry standard " railway bridges and culverts ground and foundation design code " is module 345 (TB1002.5-2005), industry standard " highway earthwork test rule " (JTJ 051-93) module 346.
Preferably, camera chain 1 has camera lens 11, the inwall of camera lens 11 is embedded with light source 111, lamp source 111 in order to illuminate the surface of sand, obtains sand image limpid in sight with 1 shooting of assisted tomography system when camera chain 1 is taken sand, concrete structure can be, camera lens 11 is cylindrical, diameter is between 10-20cm, and length is roughly 10cm, and the light source 111 of two bulb forms is embedded on the inwall of camera lens 11 with the mode symmetry of light direction irradiation outside camera lens.
Preferably, data analysis disposal system 3 has display module 36, display module 36 makes data analysis disposal system 3 have the function that shows each desired parameters, and the analysis result of the result of calculation of the result of calculation of sand nonuniformity coefficient computing module 351, sand coefficient of curvature computing module 352, the drawing result of sand grains composition curve drafting module 353 and sand grains grading analysis module 354 is presented on the display screen of this display module 36.
Sand kind identification of the present invention and grain fraction analytical equipment, in use, camera lens 11 is pressed close to the sand surface photographs, form the sand image, when photography, can be used light source 111 in the necessary situation and illuminate the sand surface, make image more limpid in sight, utilize 2 pairs of these sand images of image processing system to process, obtain the boundary shape of sand grains image, the boundary shape of the sand grains image that is obtained by 3 pairs of image processing systems 2 of data analysis disposal system again carries out analyzing and processing, to draw sand kind and sand grains component situation, specifically, select as required (GBJ145-90) module 341 of contrast national standard " criteria for classification of soil ", national standard " Code for investigation of geotechnical engineering " is module 342 (GB50021-2001), industry standard " port engineering geological mapping standard " is module 343 (JTJ240-97), Ministry of Water Resources's industry standard " earthwork test rule " is module 344 (SL237-1999), industry standard " railway bridges and culverts ground and foundation design code " is module 345 (TB1002.5-2005), industry standard " highway earthwork test rule " (JTJ 051-93) module 346, to obtain corresponding sand kind recognition result, go out as required the nonuniformity coefficient of sand by the function calculating of sand nonuniformity coefficient computing module 351, go out the coefficient of curvature of sand by the function calculating of sand coefficient of curvature computing module 352, form the grain fraction curve of sand by the function of sand grains composition curve drafting module 353, draw the grain composition situation of sand by the functional analysis of sand grains grading analysis module 354, above-mentioned corresponding result is presented on the display screen of display module 36.
Sand kind identification of the present invention and grain fraction analytical equipment, its each module is the entity module structure with corresponding function, and can reach corresponding function by existing known entities module; The shape and size of camera lens and form thereof can be adjusted and design according to actual requirement; The form of light source, quantity and distribution form etc. can be adjusted and design according to actual requirement; Sand criteria for classification table module can be selected from national standard " criteria for classification of soil " (GBJ 145-90) module according to actual requirement, national standard " Code for investigation of geotechnical engineering " is module (GB50021-2001), industry standard " port engineering geological mapping standard " (JTJ 240-97) module, Ministry of Water Resources's industry standard " earthwork test rule " is module (SL237-1999), industry standard " railway bridges and culverts ground and foundation design code " is module (TB1002.5-2005), in industry standard " highway earthwork test rule " (JTJ 051-93) module one or more; Image processing system is by the computer program control of writing.
Product form of the present invention is not limited to this case diagram and embodiment, and anyone carries out suitable variation or the modification of similar thinking to it, all should be considered as not breaking away from patent category of the present invention.

Claims (4)

1.一种砂土种类识别与颗粒组分分析装置,其特征在于:包括对砂土进行摄影以获取砂土图像的摄影系统,处理砂土图像以得到砂土颗粒边界化图形的图像处理系统,以及具有量测子系统、求解子系统、统计子系统、判别子系统和分析子系统的数据分析处理系统;1. A sandy soil type identification and particle component analysis device, characterized in that: it includes a photography system for taking pictures of sandy soil to obtain sandy soil images, and an image processing system for processing sandy soil images to obtain boundary graphics of sandy soil particles , and a data analysis and processing system with a measurement subsystem, a solution subsystem, a statistics subsystem, a discrimination subsystem and an analysis subsystem; 其中,上述量测子系统量测边界化处理后的砂土颗粒图像的面积;上述求解子系统将砂土颗粒图像等效成同等面积的圆,并求出圆直径,即为砂土颗粒的等效粒径;上述统计子系统内具有设定的粒径范围,并统计出位于此设定的粒径范围内砂土颗粒图像的面积占所有砂土颗粒图像面积的比例;上述判别子系统根据内嵌的砂土分类标准表模块判别出砂土种类;上述分析子系统具有砂土不均匀系数计算模块、砂土曲率系数计算模块、砂土颗粒组分曲线绘制模块和砂土颗粒级配分析模块;Among them, the above-mentioned measurement subsystem measures the area of the sand particle image after boundary processing; the above-mentioned solution subsystem equates the sand particle image into a circle with the same area, and calculates the diameter of the circle, which is the area of the sand particle. Equivalent particle size; the above statistical subsystem has a set particle size range, and counts the ratio of the area of the sand particle image within the set particle size range to the area of all sand particle images; the above discrimination subsystem According to the embedded sand classification standard table module, the type of sand can be identified; the above-mentioned analysis subsystem has a calculation module of sand uneven coefficient, a calculation module of sand curvature coefficient, a drawing module of sand particle composition curve and a sand particle grading module. analysis module; 上述摄影系统、图像处理系统和数据分析处理系统依次工作配合连接在一起。The above-mentioned photography system, image processing system and data analysis and processing system work sequentially and are connected together. 2.根据权利要求1所述的一种砂土种类识别与颗粒组分分析装置,其特征在于:上述砂土分类标准表模块选自国家标准《土的分类标准》模块、国家标准《岩土工程勘察规范》模块、行业标准《港口工程地质勘察规范》模块、水利部行业标准《土工试验规程》模块、行业标准《铁路桥涵地基和基础设计规范》模块、行业标准《公路土工试验规程》模块中的一种或多种。2. A kind of sandy soil type identification and particle component analysis device according to claim 1, characterized in that: the above-mentioned sandy soil classification standard table module is selected from the national standard "Soil Classification Standard" module, the national standard "Geotechnical Engineering survey specification" module, industry standard "port engineering geological survey specification" module, Ministry of Water Resources industry standard "soil test procedure" module, industry standard "railway bridge and culvert foundation and foundation design specification" module, industry standard "highway soil test procedure" module one or more of. 3.根据权利要求1所述的一种砂土种类识别与颗粒组分分析装置,其特征在于:上述摄影系统具有镜头,在所述镜头的内壁嵌设有光源。3 . The sandy soil type identification and particle component analysis device according to claim 1 , wherein the camera system has a lens, and a light source is embedded in the inner wall of the lens. 4 . 4.根据权利要求1、2或3所述的一种砂土种类识别与颗粒组分分析装置,其特征在于:上述数据分析处理系统具有显示模块。4. A sandy soil type identification and particle component analysis device according to claim 1, 2 or 3, characterized in that the data analysis and processing system has a display module.
CN2012105636495A 2012-12-21 2012-12-21 Sandy soil type identification and particle component analysis device Pending CN103048257A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012105636495A CN103048257A (en) 2012-12-21 2012-12-21 Sandy soil type identification and particle component analysis device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012105636495A CN103048257A (en) 2012-12-21 2012-12-21 Sandy soil type identification and particle component analysis device

Publications (1)

Publication Number Publication Date
CN103048257A true CN103048257A (en) 2013-04-17

Family

ID=48060977

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012105636495A Pending CN103048257A (en) 2012-12-21 2012-12-21 Sandy soil type identification and particle component analysis device

Country Status (1)

Country Link
CN (1) CN103048257A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108287125A (en) * 2017-12-28 2018-07-17 新疆新华叶尔羌河流域水利水电开发有限公司 A kind of gravel stone material grading quick analysis system and method based on image procossing
CN111504862A (en) * 2020-04-29 2020-08-07 中铁二院工程集团有限责任公司 Coarse-grained soil gradation determination method based on image technology
CN111652270A (en) * 2020-04-23 2020-09-11 中南大学 Automatic identification method and application system of coarse-grained soil filler gradation based on image matching
CN112748238A (en) * 2020-12-24 2021-05-04 中山艾尚智同信息科技有限公司 Portable aggregate moisture content real-time detector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6570999B1 (en) * 1998-08-17 2003-05-27 Ag-Chem Equipment Co., Inc. Soil particle and soil analysis system
US6937939B1 (en) * 1999-07-08 2005-08-30 Tokyo University Of Agriculture And Technology Tlo Co., Ltd. Soil measuring instrument, soil measurement assisting device and method, recorded medium on which a program is recorded, recorded medium on which data is recorded, application amount controller, application amount determining device, method for them, and farm working determination assisting system
CN200993634Y (en) * 2006-12-22 2007-12-19 水利部交通部电力工业部南京水利科学研究院 Sediment instrument
CN102539293A (en) * 2012-02-17 2012-07-04 河海大学 Sediment grain batch image acquisition device and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6570999B1 (en) * 1998-08-17 2003-05-27 Ag-Chem Equipment Co., Inc. Soil particle and soil analysis system
US6937939B1 (en) * 1999-07-08 2005-08-30 Tokyo University Of Agriculture And Technology Tlo Co., Ltd. Soil measuring instrument, soil measurement assisting device and method, recorded medium on which a program is recorded, recorded medium on which data is recorded, application amount controller, application amount determining device, method for them, and farm working determination assisting system
CN200993634Y (en) * 2006-12-22 2007-12-19 水利部交通部电力工业部南京水利科学研究院 Sediment instrument
CN102539293A (en) * 2012-02-17 2012-07-04 河海大学 Sediment grain batch image acquisition device and method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
刘清秉: "砂土颗粒形状量化及其对力学指标的影响分析", 《岩土力学》, vol. 32, 30 April 2011 (2011-04-30), pages 190 - 192 *
卢毅等: "土的分类与定名", 《中国建筑资讯》, no. 01, 31 January 2008 (2008-01-31), pages 60 - 67 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108287125A (en) * 2017-12-28 2018-07-17 新疆新华叶尔羌河流域水利水电开发有限公司 A kind of gravel stone material grading quick analysis system and method based on image procossing
CN111652270A (en) * 2020-04-23 2020-09-11 中南大学 Automatic identification method and application system of coarse-grained soil filler gradation based on image matching
CN111652270B (en) * 2020-04-23 2022-03-29 中南大学 Coarse-grained soil filler gradation automatic identification method based on image matching and application system
CN111504862A (en) * 2020-04-29 2020-08-07 中铁二院工程集团有限责任公司 Coarse-grained soil gradation determination method based on image technology
CN112748238A (en) * 2020-12-24 2021-05-04 中山艾尚智同信息科技有限公司 Portable aggregate moisture content real-time detector

Similar Documents

Publication Publication Date Title
Duque et al. Bridge deterioration quantification protocol using UAV
Le Pen et al. Dependence of shape on particle size for a crushed rock railway ballast
Xue et al. Novel SfM-DLT method for metro tunnel 3D reconstruction and Visualization
Zhao et al. Combining ICESat-2 photons and Google Earth Satellite images for building height extraction
CN110383038A (en) System and method for being automatically analyzed to air sample
CN109856029B (en) A Porosity Evaluation Method Based on Image Analysis
Janiszewski et al. Rapid photogrammetry with a 360-degree camera for tunnel mapping
An et al. A fast and practical method for determining particle size and shape by using smartphone photogrammetry
Liu et al. The detection effect of pavement 3D texture morphology using improved binocular reconstruction algorithm with laser line constraint
Ohm et al. Size distribution of coarse-grained soil by sedimaging
US10125464B2 (en) Photogrammetric soil density system and method
Ge et al. Estimation of the appropriate sampling interval for rock joints roughness using laser scanning
CN103048257A (en) Sandy soil type identification and particle component analysis device
CN115656053A (en) Rock Mineral Content Testing Method and System
Kozakiewicz Image analysis algorithm for detection and measurement of Martian sand grains
Motayyeb et al. Fusion of UAV-based infrared and visible images for thermal leakage map generation of building facades
JP6039132B2 (en) Method for measuring volume ratio of each pure medium existing in minimum unit of X-ray CT image for specimen made of composite medium
Aprile et al. Classification of mineral inclusions in ancient ceramics: comparing different modal analysis strategies
Song et al. Research on fine collection and interpretation methods of discontinuities on high-steep rock slopes based on UAV multi-angle nap-of-the-object photogrammetry
Zou et al. Intelligent assessment system of material deterioration in masonry tower based on improved image segmentation model
Huang et al. Field imaging and volumetric reconstruction of riprap rock and large-sized aggregates: algorithms and application
Guo et al. Research on the intelligent detection technology of multi-objective coarse aggregates
CN111307070A (en) Method for measuring edge angle of concrete coarse aggregate based on digital image processing
Zhu et al. Structure plane interpretation of rockfall and early identification of potential hazards based on UAV photogrammetry
Chen et al. Quantifying streambed grain size, uncertainty, and hydrobiogeochemical parameters using machine learning model YOLO

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130417