A fast and practical method for determining particle size and shape by using smartphone photogrammetry

An, Pengju; Tang, Huiming; Li, Changdong; Fang, Kun; Lu, Sha; Zhang, Jiefei

doi:10.1016/j.measurement.2022.110943

Cited by 18 publications

(6 citation statements)

References 47 publications

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“…The most common solution is on-the-job calibration. Among the many smartphone photogrammetry publications, only a small part of them contain information on calibration [ 30 , 40 , 41 , 59 , 64 , 67 , 72 , 74 , 76 , 78 , 90 , 93 , 97 , 98 , 99 , 100 , 101 , 102 , 103 ].…”

Section: Introductionmentioning

confidence: 99%

A Simple Way to Reduce 3D Model Deformation in Smartphone Photogrammetry

Jasińska

Pyka

Pastucha

et al. 2023

Sensors

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Recently, the term smartphone photogrammetry gained popularity. This suggests that photogrammetry may become a simple measurement tool by virtually every smartphone user. The research was undertaken to clarify whether it is appropriate to use the Structure from Motion—Multi Stereo View (SfM-MVS) procedure with self-calibration as it is done in Uncrewed Aerial Vehicle photogrammetry. First, the geometric stability of smartphone cameras was tested. Fourteen smartphones were calibrated on the checkerboard test field. The process was repeated multiple times. These observations were found: (1) most smartphone cameras have lower stability of the internal orientation parameters than a Digital Single-Lens Reflex (DSLR) camera, and (2) the principal distance and position of the principal point are constantly changing. Then, based on images from two selected smartphones, 3D models of a small sculpture were developed. The SfM-MVS method was used, with self-calibration and pre-calibration variants. By comparing the resultant models with the reference DSLR-created model it was shown that introducing calibration obtained in the test field instead of self-calibration improves the geometry of 3D models. In particular, deformations of local concavities and convexities decreased. In conclusion, there is real potential in smartphone photogrammetry, but it also has its limits.

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Section: Introductionmentioning

confidence: 99%

A Simple Way to Reduce 3D Model Deformation in Smartphone Photogrammetry

Jasińska

Pyka

Pastucha

et al. 2023

Sensors

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“…A number of them decided to glue the grain onto a thin pedestal, which allowed them to photograph almost the whole surface of the grain in one session [ 18 , 19 ]. In contrast, other authors placed the grains onto a flat surface, which resulted in an incomplete grain reconstruction that required fixing later during the postprocessing stage [ 17 , 20 ]. We aimed to measure the volume as accurately as possible with minimum intervention to the grain’s structure.…”

Section: Methodsmentioning

confidence: 99%

“…On the one hand, it can be used in order to create large-area terrain elevation models (Wang et al, 2020), to document civil engineering structures [ 12 ] and archeological sites [ 13 , 14 ], or to study rock masses [ 15 ]. On the other hand, it can be used for relatively small volume measurements [ 16 ], the reconstruction of the shape of individual grains [ 17 , 18 , 19 , 20 ], or for studying the roughness of rock joints [ 21 ]. Especially, grain-scale measurements are particularly interesting in the context of the presented research.…”

Section: Introductionmentioning

confidence: 99%

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Photogrammetry-Based Volume Measurement Framework for the Particle Density Estimation of LECA

et al. 2022

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This paper presents a photogrammetry-based volume measurement framework for the particle density estimation of Lightweight expanded clay aggregate (LECA). The results are compared with computed tomography (CT) and Archimedes’ method measurements. All of the steps required in order to apply the proposed approach are explained. Next, we discuss how the interpretation of open pores affects the results of volume measurements. We propose to process the shapes obtained from different methods by applying an Ambient Occlusion algorithm with the same threshold, t = 0.175. The difference between the CT and SfM methods is less than 0.006 g/cm3, proving that the photogrammetry-based approach is accurate enough. The Archimedes’ method significantly overestimates the density of the particles. Nevertheless, its accuracy is acceptable for most engineering purposes. Additionally, we evaluate the accuracy of shape reconstruction (in terms of the Hausdorff distance). For 95% of the grain’s surface, the maximum error is between 0.073 mm and 0.129 mm (depending on the grain shape). The presented approach is helpful for measuring the particle density of porous aggregates. The proposed methodology can be utilized in order to estimate intergranular porosity, which is valuable information for the calibration of DEM models.

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“…More importantly, the rapid development of smartphones, such as the LiDAR on the iPhone 12 Pro, has expanded the scope of smartphone applications in measurement and photogrammetry. [16] Smartphone photogrammetry produces results comparable to 3D scanners and multi-camera approaches. Furthermore, it is low-cost because data collection only requires a smartphone.…”

Section: Literature Reviewmentioning

confidence: 99%

Development and Creation of Ancient Sandstone Carvings Using 3D Software Tools and Mobile/Tablet Devices

Sookkaew,

Kaenmueang,

Chaikaew

2023

Int. J. Interact. Mob. Technol.

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In the area of Phayao Province that used to be part of the ancient Lanna Kingdom, there are unique works of art that can be found until today, which are sandstone carvings caused by religious beliefs resulting in works such as Buddha statues. These are art related to religion. Nowadays, these works of art have started to fade away and receive less and less attention from people. The creation of art objects in this research therefore uses the interpretation of the creative objects in line with people’s lifestyles by selecting the lotus, which is a plant related to rivers, and is important in religion. In the lotus, which is interconnected and aligned with Buddhism, and in harmony with a way of life that aligns with the river, creative works are found in various forms, connecting people in Buddhism, including sandstone carving. In this creation, digital technology tools and methods are used to collect data to create a 3D work piece. Photogrammetry is used to record detailed proportions and information and customization of 3D work pieces. In these steps, mobile phone-type tools are used to collect image data to create the 3D work or an application is used to customize 3D work pieces from a tablet device to create prototypes of sandstone sculptures from the artisans that remain today. This can be seen in creating, maintaining, and recording digital data, creation, and the integration of knowledge. This demonstrates that today’s tools and portable devices can help create more creative pieces of work and preserve art and culture.

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A fast and practical method for determining particle size and shape by using smartphone photogrammetry

Cited by 18 publications

References 47 publications

A Simple Way to Reduce 3D Model Deformation in Smartphone Photogrammetry

A Simple Way to Reduce 3D Model Deformation in Smartphone Photogrammetry

Photogrammetry-Based Volume Measurement Framework for the Particle Density Estimation of LECA

Development and Creation of Ancient Sandstone Carvings Using 3D Software Tools and Mobile/Tablet Devices

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