Photogrammetric Applications of Immersive Video Cameras

Kwiatek, Karol; Tokarczyk, R.

doi:10.5194/isprsannals-ii-5-211-2014

Cited by 24 publications

(17 citation statements)

References 15 publications

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“…Recently, some commercial software have incorporated the spherical camera model. The software tested in this work are Agisoft PhotoScan and Pix4Dmapper, which can process such images and produce texturized meshes and orthophotos (Kwiatek and Tokarczyk, 2014;Tokarczyk, 2015, Pérez Ramos andRobleda Prieto, 2015. )…”

Section: Introductionmentioning

confidence: 99%

Can We Use Low-Cost 360 Degree Cameras to Create Accurate 3d Models?

Barazzetti

Previtali

Roncoroni

2018

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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360 degree cameras capture the whole scene around a photographer in a single shot. Cheap 360 cameras are a new paradigm in photogrammetry. The camera can be pointed to any direction, and the large field of view reduces the number of photographs. This paper aims to show that accurate metric reconstructions can be achieved with affordable sensors (less than 300 euro). The camera used in this work is the Xiaomi Mijia Mi Sphere 360, which has a cost of about 300 USD (January 2018). Experiments demonstrate that millimeter-level accuracy can be obtained during the image orientation and surface reconstruction steps, in which the solution from 360° images was compared to check points measured with a total station and laser scanning point clouds. The paper will summarize some practical rules for image acquisition as well as the importance of ground control points to remove possible deformations of the network during bundle adjustment, especially for long sequences with unfavorable geometry. The generation of orthophotos from images having a 360° field of view (that captures the entire scene around the camera) is discussed. Finally, the paper illustrates some case studies where the use of a 360° camera could be a better choice than a project based on central perspective cameras. Basically, 360° cameras become very useful in the survey of long and narrow spaces, as well as interior areas like small rooms.This contribution has been peer-reviewed. https://doi.org/10.5194/isprs-archives-XLII-2-69-2018 | © Authors 2018. CC BY 4.0 License.

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Section: Introductionmentioning

confidence: 99%

Can We Use Low-Cost 360 Degree Cameras to Create Accurate 3d Models?

Barazzetti

Previtali

Roncoroni

2018

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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“…The solution to such issues is nowadays represented by new sensors that, at the expenses of resolution, enable to collect spherical images with just one shot. In (Kwiatek and Tokarczyk, 2015) and (Kwiatek and Tokarczyk, 2014) the topic of exploiting 360 images for photogrammetric purposes is faced. The articles attempt to describe a procedure for using images coming from a video sequences, highlighting that the images have a relatively low resolution.…”

Section: Related Workmentioning

confidence: 99%

Improving Spherical Photogrammetry Using 360° omni-Cameras: Use Cases and New Applications

Fangi

Pierdicca

Sturari³

et al. 2018

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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During the last few years, there has been a growing exploitation of consumer-grade cameras allowing one to capture 360&deg; images. Each device has different features and the choice should be entrusted on the use and the expected final output. The interest on such technology within the research community is related to its use versatility, enabling the user to capture the world with an omnidirectional view with just one shot. The potential is huge and the literature presents many use cases in several research domains, spanning from retail to construction, from tourism to immersive virtual reality solutions. However, the domain that could the most benefit is Cultural Heritage (CH), since these sensors are particularly suitable for documenting a real scene with architectural detail. Following the previous researches conducted by Fangi, which introduced its own methodology called Spherical Photogrammetry (SP), the aim of this paper is to present some tests conducted with the omni-camera Panono 360&deg; which reach a final resolution comparable with a traditional camera and to validate, after almost ten years from the first experiment, its reliability for architectural surveying purposes. Tests have been conducted choosing as study cases <i>Santa Maria della Piazza</i> and <i>San Francesco alle scale Churches</i> in Ancona, Italy, since they were previously surveyed and documented with SP methodology. In this way, it has been possible to validate the accuracy of the new survey, performed by means an omni-camera, compared with the previous one for both outdoor and indoor scenario. The core idea behind this work is to validate if this new sensor can replace the standard image collection phase, speeding up the process, assuring at the same time the final accuracy of the survey. The experiment conducted demonstrate that, w.r.t. the SP methodology developed so far, the main advantage in using 360&deg;&thinsp;omni-directional cameras lies on increasing the rapidity of acquisition and panorama creation phases. Moreover, in order to foresee the implications that a wide adoption of fast and agile tools of acquisition could bring within the CH domain, points cloud have been generated with the same panoramas and visualized in a WEB application, to allow a result dissemination between the users.

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“…This issue has been examined along with its impact on 3D modelling. In the fi rst scenario stitching was done in PTGUI with parameters described in [12] and, although the panoramas were visually correct, 3D modelling from these panoramas provided the poorest results (Tab. 1).…”

Section: Impact Of the Methods For Creating Panoramasmentioning

confidence: 99%

“…3D modelling from panoramas registered with mobile systems is discussed in [12,22], where GPS and IMU were used for georeference of images.…”

Section: Sfm and Panoramasmentioning

confidence: 99%