Scene Reconstruction and Visualization From Community Photo Collections

Snavely, Noah; Simon, Ian; Goesele, Michael; Szeliski, Richard; Seitz, Steven M.

doi:10.1109/jproc.2010.2049330

Cited by 112 publications

(79 citation statements)

References 63 publications

(73 reference statements)

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“…Major differences in slope length, slope gradient and materials enable the observation and reproductions of a wide range of slope morphological processes. The SfM technique is based on computer visualization techniques and picture-based 3D-surface reconstruction algorithms [25]. It provides a means to produce highly detailed models by applying a nonmetric and commercially available digital camera-in this study a Canon EOS 350D-to take images from a multitude of perspectives of any given object.…”

Section: Quarry Site Eichstätt Germanymentioning

confidence: 99%

Small-Scale Surface Reconstruction and Volume Calculation of Soil Erosion in Complex Moroccan Gully Morphology Using Structure from Motion

et al. 2014

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This study presents a computer vision application of the structure from motion (SfM) technique in three dimensional high resolution gully monitoring in southern Morocco. Due to impractical use of terrestrial Light Detection and Ranging (LiDAR) in difficult to access gully systems, the inexpensive SfM is a promising tool for analyzing and monitoring soil loss, gully head retreat and plunge pool development following heavy rain events. Objects with known dimensions were placed around the gully scenes for scaling purposes as a workaround for ground control point (GCP) placement. Additionally, the free scaling with objects was compared to terrestrial laser scanner (TLS) data in a field laboratory in Germany. Results of the latter showed discrepancies of 5.6% in volume difference for erosion and 1.7% for accumulation between SfM and TLS. In the Moroccan research area soil loss varied between 0.58 t in an 18.65 m

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Section: Quarry Site Eichstätt Germanymentioning

confidence: 99%

Small-Scale Surface Reconstruction and Volume Calculation of Soil Erosion in Complex Moroccan Gully Morphology Using Structure from Motion

et al. 2014

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“…A photogrammetric based model is applied to structural analysis by directly introducing 3D geometry files in the preprocessing module of computational software based on the Finite Element Method [9], [10], [11].In Armesto et al's study, the equipment used for recording and modeling consisted of an analog camera loaded with high resolution film, a scanner, a total station surveying tool and a digital photogrammetric station. When modeling construction work, it is often useful to integrate 3D laser scanning techniques with photogrammetry in order to enhance the 3D modeling process.…”

Section: Introductionmentioning

confidence: 99%

Structure-From-Motion Approach to the Reconstruction of Surfaces for Earthwork Planning

Nassar

Jung

2012

Journal of Construction Engineering and Project Management

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The reconstruction of surfaces from unorganized point clouds can provide very useful information for construction managers. Although point clouds are generally created using 3D scanners, they can also be generated via the structure-frommotion technique using a sequence of images. Here we report a novel surface reconstruction technique for modeling and quantifying earthworks that can be used for preliminary planning, project updates and estimating of earthwork quantities, as well as embedded planning systems in construction equipment. The application of structure-from-motion techniques in earth works is examined and its advantages and limitations identified. Data from 23 earthwork excavation construction sites were collected and analyzed. 3D surface reconstructions during the construction phase were compared to the original land form. Similar experiments were conducted with piles of earth and the results analyzed to determine appropriate ranges of use for structure-from-motion surface reconstructions in earthwork applications. The technique was found to be most suited to pile of materials with volumes less than 2000 m 3 . Piles up to 10 m in height and with base areas up to 300 m 2 were also successfully reconstructed. These results should be of interest to contractors seeking to utilize new technology to optimize operational efficiency.

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“…According to Snavely et al 2010, the SfM techniques used in their study are not likely to register photos that do not have sufficient overlap, unless they are captured more frequently than in usual photography (Snavely et al 2010). Therefore, in the first stage of the case study, the baseline between the images captured by field staff or engineers seems to be too wide.…”

Section: First Stagementioning

confidence: 99%

A step-by-step construction site photography procedure to enhance the efficiency of as-built data visualization: a case study

et al. 2015

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Introduction: Visualization of as-built data may change the future of construction project management to a more efficient area of knowledge if appropriate and easy photography and reconstruction tools would be developed and used by practitioners. Most of the current reconstructed 3D point cloud models use unordered photograph collections to generate 4D as-built models. Some of these photographs are not used in the final model mostly because of either a possible overlap with other photos or some faults in photography procedure. Computation time increases exponentially as the number of photos in a photo collection increases. Therefore, the unstructured processes may reduce the performance of a point-cloud model representation. This work shows how the available application of unordered photograph collections are regularly inefficient by measuring the performance of some important criteria, such as the registration success score and the computation time.Case description: The case study is the construction of a gas compressor station. Such industrial projects involve several building and work areas (e.g., substation, control building, and piping area). The construction site covers approximately 20 hectares. The case study was conducted in two stages. In the first stage, preexisting images have been used for image based modelling (IBM). In the second stage, images captured based on a step-by-step photography procedure (SPP) have been used for IBM. Discussion and evaluation:IBM performance in the first stage of the case study has been compared with the performance of the second stage by comparing the registration success scores. The IBM in the first stage of the case study results in sparse models, which hardly show the geometry of construction scenes. By contrast, capturing images based on the SPP in the second stage of the case study significantly changed the performance of IBM and increased the registration success score. Conclusion:This study provides an easy applicable on-site photography procedure. By adopting the proposed approach and by training the photographers, the model would be more desirable for application in more construction projects. The application of the SPP in the case study shows a significant improvement in the final reconstructed 3D point cloud model and as-built data visualization criteria.

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Scene Reconstruction and Visualization From Community Photo Collections

Cited by 112 publications

References 63 publications

Small-Scale Surface Reconstruction and Volume Calculation of Soil Erosion in Complex Moroccan Gully Morphology Using Structure from Motion

Small-Scale Surface Reconstruction and Volume Calculation of Soil Erosion in Complex Moroccan Gully Morphology Using Structure from Motion

Structure-From-Motion Approach to the Reconstruction of Surfaces for Earthwork Planning

A step-by-step construction site photography procedure to enhance the efficiency of as-built data visualization: a case study

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