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f | 1 | { | f | 1 | { |
2 | "author": "Max Coenen", | 2 | "author": "Max Coenen", | ||
3 | "author_email": "m.coenen@baustoff.uni-hannover.de", | 3 | "author_email": "m.coenen@baustoff.uni-hannover.de", | ||
4 | "creator_user_id": "17755db4-395a-4b3b-ac09-e8e3484ca700", | 4 | "creator_user_id": "17755db4-395a-4b3b-ac09-e8e3484ca700", | ||
5 | "doi": "10.25835/etbkk0pb", | 5 | "doi": "10.25835/etbkk0pb", | ||
6 | "doi_date_published": "2022-02-07", | 6 | "doi_date_published": "2022-02-07", | ||
7 | "doi_publisher": "LUIS", | 7 | "doi_publisher": "LUIS", | ||
8 | "doi_status": "true", | 8 | "doi_status": "true", | ||
9 | "domain": "https://data.uni-hannover.de", | 9 | "domain": "https://data.uni-hannover.de", | ||
10 | "groups": [], | 10 | "groups": [], | ||
11 | "have_copyright": "Yes", | 11 | "have_copyright": "Yes", | ||
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13 | "isopen": false, | 13 | "isopen": false, | ||
14 | "license_id": "CC-BY-NC-3.0", | 14 | "license_id": "CC-BY-NC-3.0", | ||
15 | "license_title": "CC-BY-NC-3.0", | 15 | "license_title": "CC-BY-NC-3.0", | ||
16 | "maintainer": "Max Coenen", | 16 | "maintainer": "Max Coenen", | ||
17 | "maintainer_email": "", | 17 | "maintainer_email": "", | ||
18 | "metadata_created": "2023-01-12T13:14:30.175393", | 18 | "metadata_created": "2023-01-12T13:14:30.175393", | ||
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20 | "name": "luh-visual-granulometry", | 20 | "name": "luh-visual-granulometry", | ||
21 | "notes": "# Introduction\r\nConcrete is one if the most used | 21 | "notes": "# Introduction\r\nConcrete is one if the most used | ||
22 | building materials worldwide. With up to 80% of volume, a large | 22 | building materials worldwide. With up to 80% of volume, a large | ||
23 | constituent of concrete consists of fine and coarse aggregate | 23 | constituent of concrete consists of fine and coarse aggregate | ||
24 | particles (normally, sizes of 0.1mm to 32 mm) which are dispersed in a | 24 | particles (normally, sizes of 0.1mm to 32 mm) which are dispersed in a | ||
25 | cement paste matrix. The size distribution of the aggregates (i.e. the | 25 | cement paste matrix. The size distribution of the aggregates (i.e. the | ||
26 | grading curve) substantially affects the properties and quality | 26 | grading curve) substantially affects the properties and quality | ||
27 | characteristics of concrete, such as e.g. its workability at the fresh | 27 | characteristics of concrete, such as e.g. its workability at the fresh | ||
28 | state and the\r\nmechanical properties at the hardened state. In | 28 | state and the\r\nmechanical properties at the hardened state. In | ||
29 | practice, usually the size distribution of small samples of the | 29 | practice, usually the size distribution of small samples of the | ||
30 | aggregate is determined by manual mechanical sieving and is considered | 30 | aggregate is determined by manual mechanical sieving and is considered | ||
31 | as representative for a large amount of aggregate. However, the size | 31 | as representative for a large amount of aggregate. However, the size | ||
32 | distribution of the actual aggregate used for individual production | 32 | distribution of the actual aggregate used for individual production | ||
33 | batches of concrete varies, especially when e.g. recycled material is | 33 | batches of concrete varies, especially when e.g. recycled material is | ||
34 | used as aggregate. As a consequence, the unknown variations of the | 34 | used as aggregate. As a consequence, the unknown variations of the | ||
35 | particle size distribution have a negative effect on the robustness | 35 | particle size distribution have a negative effect on the robustness | ||
36 | and the quality of the final concrete produced from the raw material. | 36 | and the quality of the final concrete produced from the raw material. | ||
37 | \r\n\r\nTowards the goal of deriving precise knowledge about the | 37 | \r\n\r\nTowards the goal of deriving precise knowledge about the | ||
38 | actual particle size distribution of the aggregate, thus eliminating | 38 | actual particle size distribution of the aggregate, thus eliminating | ||
39 | the unknown variations in the material\u2019s properties, we propose a | 39 | the unknown variations in the material\u2019s properties, we propose a | ||
40 | data set for the image based prediction of the size distribution of | 40 | data set for the image based prediction of the size distribution of | ||
41 | concrete aggregates. Incorporating such an approach into the | 41 | concrete aggregates. Incorporating such an approach into the | ||
42 | production chain of concrete enables to react on detected variations | 42 | production chain of concrete enables to react on detected variations | ||
43 | in the size distribution of the aggregate in real-time by | 43 | in the size distribution of the aggregate in real-time by | ||
44 | adapting\r\nthe composition, i.e. the mixture design of the concrete | 44 | adapting\r\nthe composition, i.e. the mixture design of the concrete | ||
45 | accordingly, so that the desired concrete properties are | 45 | accordingly, so that the desired concrete properties are | ||
46 | reached.\r\n\r\n![Classicial vs. image based | 46 | reached.\r\n\r\n![Classicial vs. image based | ||
47 | 18/resource/042abf8d-e87a-4940-8195-2459627f57b6/download/overview.png | 47 | 18/resource/042abf8d-e87a-4940-8195-2459627f57b6/download/overview.png | ||
48 | \" \")\r\n\r\n\r\n\r\n\r\n# Classification data\r\nIn the | 48 | \" \")\r\n\r\n\r\n\r\n\r\n# Classification data\r\nIn the | ||
49 | classification data, nine different grading curves are distinguished. | 49 | classification data, nine different grading curves are distinguished. | ||
50 | In this context, the normative regulations of DIN 1045 are considered. | 50 | In this context, the normative regulations of DIN 1045 are considered. | ||
51 | The nine grading curves differ in their maximum particle size (8, 16, | 51 | The nine grading curves differ in their maximum particle size (8, 16, | ||
52 | or 32 mm) and in the distribution of the particle size fractions | 52 | or 32 mm) and in the distribution of the particle size fractions | ||
53 | allowing a categorisation of the curves to coarse-grained (A), | 53 | allowing a categorisation of the curves to coarse-grained (A), | ||
54 | medium-grained (B) and fine-grained (C) curves, respectively. A | 54 | medium-grained (B) and fine-grained (C) curves, respectively. A | ||
55 | quantitative description of the grain size distribution of the nine | 55 | quantitative description of the grain size distribution of the nine | ||
56 | curves distinguished is shown in the following figure, where the left | 56 | curves distinguished is shown in the following figure, where the left | ||
57 | side shows a histogram of the particle size fractions\r\n0-2, 2-8, | 57 | side shows a histogram of the particle size fractions\r\n0-2, 2-8, | ||
58 | 8-16, and 16-32 mm and the right side shows the cumulative histograms | 58 | 8-16, and 16-32 mm and the right side shows the cumulative histograms | ||
59 | of the grading curves (the vertical axes represent the | 59 | of the grading curves (the vertical axes represent the | ||
60 | mass-percentages of the material).\r\n\r\nFor each of the grading | 60 | mass-percentages of the material).\r\n\r\nFor each of the grading | ||
61 | curves, two samples (S1 and S2) of aggregate particles were created. | 61 | curves, two samples (S1 and S2) of aggregate particles were created. | ||
62 | Each sample consists of a total mass of 5 kg of aggregate material and | 62 | Each sample consists of a total mass of 5 kg of aggregate material and | ||
63 | is carefully designed according to the grain size distribution shwon | 63 | is carefully designed according to the grain size distribution shwon | ||
64 | in the figure by sieving the raw material in order to separate the | 64 | in the figure by sieving the raw material in order to separate the | ||
65 | different grain size fractions first, and subsequently, by composing | 65 | different grain size fractions first, and subsequently, by composing | ||
66 | the samples according to the dedicated mass-percentages of the size | 66 | the samples according to the dedicated mass-percentages of the size | ||
67 | distributions.\r\n\r\n![Particle size distribution of the | 67 | distributions.\r\n\r\n![Particle size distribution of the | ||
68 | classification | 68 | classification | ||
69 | b23-4ec2-9311-0f339e0330b4/download/statistics_classification-data.png | 69 | b23-4ec2-9311-0f339e0330b4/download/statistics_classification-data.png | ||
70 | \"\")\r\n\r\nFor data acquisition, a static setup was used for which | 70 | \"\")\r\n\r\nFor data acquisition, a static setup was used for which | ||
71 | the samples are placed in a measurement vessel equipped with a set of | 71 | the samples are placed in a measurement vessel equipped with a set of | ||
72 | calibrated reference markers whose object coordinates are known and | 72 | calibrated reference markers whose object coordinates are known and | ||
73 | which are assembled in a way that they form a common plane with the | 73 | which are assembled in a way that they form a common plane with the | ||
74 | surface of the aggregate sample. We acquired the data by taking images | 74 | surface of the aggregate sample. We acquired the data by taking images | ||
75 | of the aggregate samples (and the reference markers) which are filled | 75 | of the aggregate samples (and the reference markers) which are filled | ||
76 | in the the measurement vessel and whose constellation within the | 76 | in the the measurement vessel and whose constellation within the | ||
77 | vessel is perturbed between the acquisition of each image in order to | 77 | vessel is perturbed between the acquisition of each image in order to | ||
78 | obtain variations in the sample\u2019s visual appearance. This | 78 | obtain variations in the sample\u2019s visual appearance. This | ||
79 | acquisition strategy allows to record multiple different images for | 79 | acquisition strategy allows to record multiple different images for | ||
80 | the individual grading curves by reusing the same sample, consequently | 80 | the individual grading curves by reusing the same sample, consequently | ||
81 | reducing the labour-intensive part of material sieving\r\nand sample | 81 | reducing the labour-intensive part of material sieving\r\nand sample | ||
82 | generation. In this way, we acquired a data set of **900 images** in | 82 | generation. In this way, we acquired a data set of **900 images** in | ||
83 | total, consisting of 50 images of each of the two samples (S1 and S2) | 83 | total, consisting of 50 images of each of the two samples (S1 and S2) | ||
84 | which were created for each of the nine grading curve definitions, | 84 | which were created for each of the nine grading curve definitions, | ||
85 | respectively (50 x 2 x 9 = 900). For each image, we automatically | 85 | respectively (50 x 2 x 9 = 900). For each image, we automatically | ||
86 | detect the reference markers, thus receiving the image coordinates of | 86 | detect the reference markers, thus receiving the image coordinates of | ||
87 | each marker in addition to its known object coordinates. We make use | 87 | each marker in addition to its known object coordinates. We make use | ||
88 | of these correspondences for the computation of the homography which | 88 | of these correspondences for the computation of the homography which | ||
89 | describes the perspective transformation of the reference | 89 | describes the perspective transformation of the reference | ||
90 | marker\u2019s plane in object space (which corresponds to the surface | 90 | marker\u2019s plane in object space (which corresponds to the surface | ||
91 | plane of the aggregate sample) to the image plane. Using the computed | 91 | plane of the aggregate sample) to the image plane. Using the computed | ||
92 | homography, we transform the image in order to obtain an perspectively | 92 | homography, we transform the image in order to obtain an perspectively | ||
93 | rectified representation of the aggregate sample with a known, and | 93 | rectified representation of the aggregate sample with a known, and | ||
94 | especially a for the entire image consistent, ground sampling distance | 94 | especially a for the entire image consistent, ground sampling distance | ||
95 | (GSD) of **8 px/mm**. In the following figure, example images of our | 95 | (GSD) of **8 px/mm**. In the following figure, example images of our | ||
96 | data set showing aggregate samples of each of the distinguished | 96 | data set showing aggregate samples of each of the distinguished | ||
97 | grading curve classes are depicted.\r\n\r\n![Example images of the | 97 | grading curve classes are depicted.\r\n\r\n![Example images of the | ||
98 | classification | 98 | classification | ||
99 | -3eef-4b50-986a-e8d2b0e14beb/download/examples_classification_data.png | 99 | -3eef-4b50-986a-e8d2b0e14beb/download/examples_classification_data.png | ||
100 | \"\")\r\n\r\n## Related publications:\r\nIf you make use of the | 100 | \"\")\r\n\r\n## Related publications:\r\nIf you make use of the | ||
101 | proposed data, please cite the publication listed below. \r\n\r\n* | 101 | proposed data, please cite the publication listed below. \r\n\r\n* | ||
102 | **Coenen, M., Beyer, D., Heipke, C. and Haist, M., 2022**: Learning to | 102 | **Coenen, M., Beyer, D., Heipke, C. and Haist, M., 2022**: Learning to | ||
103 | Sieve: Prediction of Grading Curves from Images of Concrete Aggregate. | 103 | Sieve: Prediction of Grading Curves from Images of Concrete Aggregate. | ||
104 | In: _ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial | 104 | In: _ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial | ||
105 | Information Sciences V-2-2022_, pp. 227-235, | 105 | Information Sciences V-2-2022_, pp. 227-235, | ||
106 | [Link](https://doi.org/10.5194/isprs-annals-V-2-2022-227-2022).", | 106 | [Link](https://doi.org/10.5194/isprs-annals-V-2-2022-227-2022).", | ||
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110 | "approval_status": "approved", | 110 | "approval_status": "approved", | ||
111 | "created": "2021-10-14T10:15:54.910241", | 111 | "created": "2021-10-14T10:15:54.910241", | ||
112 | "description": "Appelstra\u00dfe 9a\r\n__30167 | 112 | "description": "Appelstra\u00dfe 9a\r\n__30167 | ||
113 | Hannover__\r\n\r\nTel.: +49 511762-3722 \r\n\r\nFax: +49 511762-4736 | 113 | Hannover__\r\n\r\nTel.: +49 511762-3722 \r\n\r\nFax: +49 511762-4736 | ||
114 | \r\n\r\nE-Mail: institut@baustoff.uni-hannover.de | 114 | \r\n\r\nE-Mail: institut@baustoff.uni-hannover.de | ||
115 | \r\n\r\nhttps://www.baustoff.uni-hannover.de/\r\n", | 115 | \r\n\r\nhttps://www.baustoff.uni-hannover.de/\r\n", | ||
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232 | "id": "f650b4e3-9955-49b0-ba7b-2d302a990978", | 233 | "id": "f650b4e3-9955-49b0-ba7b-2d302a990978", | ||
233 | "name": "computer vision", | 234 | "name": "computer vision", | ||
234 | "state": "active", | 235 | "state": "active", | ||
235 | "vocabulary_id": null | 236 | "vocabulary_id": null | ||
236 | }, | 237 | }, | ||
237 | { | 238 | { | ||
238 | "display_name": "concrete", | 239 | "display_name": "concrete", | ||
239 | "id": "f3b78da4-3d53-4a64-b626-b42be17cce8c", | 240 | "id": "f3b78da4-3d53-4a64-b626-b42be17cce8c", | ||
240 | "name": "concrete", | 241 | "name": "concrete", | ||
241 | "state": "active", | 242 | "state": "active", | ||
242 | "vocabulary_id": null | 243 | "vocabulary_id": null | ||
243 | }, | 244 | }, | ||
244 | { | 245 | { | ||
245 | "display_name": "construction", | 246 | "display_name": "construction", | ||
246 | "id": "fe3254bd-5dec-45e9-9cfd-c21612001265", | 247 | "id": "fe3254bd-5dec-45e9-9cfd-c21612001265", | ||
247 | "name": "construction", | 248 | "name": "construction", | ||
248 | "state": "active", | 249 | "state": "active", | ||
249 | "vocabulary_id": null | 250 | "vocabulary_id": null | ||
250 | }, | 251 | }, | ||
251 | { | 252 | { | ||
252 | "display_name": "grading curve", | 253 | "display_name": "grading curve", | ||
253 | "id": "fd35aa83-8084-4f40-b76c-007cc76c2a70", | 254 | "id": "fd35aa83-8084-4f40-b76c-007cc76c2a70", | ||
254 | "name": "grading curve", | 255 | "name": "grading curve", | ||
255 | "state": "active", | 256 | "state": "active", | ||
256 | "vocabulary_id": null | 257 | "vocabulary_id": null | ||
257 | }, | 258 | }, | ||
258 | { | 259 | { | ||
259 | "display_name": "granulometry", | 260 | "display_name": "granulometry", | ||
260 | "id": "4593ebf2-7d9c-4c6c-bbdc-694f0fc0f59f", | 261 | "id": "4593ebf2-7d9c-4c6c-bbdc-694f0fc0f59f", | ||
261 | "name": "granulometry", | 262 | "name": "granulometry", | ||
262 | "state": "active", | 263 | "state": "active", | ||
263 | "vocabulary_id": null | 264 | "vocabulary_id": null | ||
264 | }, | 265 | }, | ||
265 | { | 266 | { | ||
266 | "display_name": "particle size", | 267 | "display_name": "particle size", | ||
267 | "id": "3edd4519-a8a7-4cb3-8644-e062e00608d1", | 268 | "id": "3edd4519-a8a7-4cb3-8644-e062e00608d1", | ||
268 | "name": "particle size", | 269 | "name": "particle size", | ||
269 | "state": "active", | 270 | "state": "active", | ||
270 | "vocabulary_id": null | 271 | "vocabulary_id": null | ||
271 | } | 272 | } | ||
272 | ], | 273 | ], | ||
273 | "terms_of_usage": "Yes", | 274 | "terms_of_usage": "Yes", | ||
274 | "title": "Visual Granulometry: Image-based Granulometry of Concrete | 275 | "title": "Visual Granulometry: Image-based Granulometry of Concrete | ||
275 | Aggregate", | 276 | Aggregate", | ||
276 | "type": "vdataset", | 277 | "type": "vdataset", | ||
277 | "url": "https://data.uni-hannover.de/dataset/visual-granulometry", | 278 | "url": "https://data.uni-hannover.de/dataset/visual-granulometry", | ||
278 | "version": "" | 279 | "version": "" | ||
279 | } | 280 | } |