A Surface-Based Spatial Registration Method Based on Sense Three-Dimensional Scanner

Fan, Yifeng; Xu, Xiufang; Wang, Manning

doi:10.1097/scs.0000000000003283

Cited by 20 publications

(29 citation statements)

References 16 publications

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“…Fan et al also analyzed a low-cost 3D Scanner ($ 400). But in contrast to our good results, they reported an overall Target Resulting Error of 2.5 ± 0.31 mm [ 35 ]. This is worse than our results and is on the border for clinical relevance, since deviations larger than 2 mm are considered unreliable.…”

Section: Discussioncontrasting

confidence: 99%

The possibilities of a portable low-budget three-dimensional stereophotogrammetry system in neonates: a prospective growth analysis and analysis of accuracy

et al. 2018

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BackgroundWith the technical development, portable three-dimensional (3D) photogrammetry systems are becoming more en vogue because of cost-effectiveness and comparable accuracy to common stationary 3D systems. The purpose of the study was to evaluate the feasibility and accuracy of a low-budget portable system for 3D image acquisition with special regard to the gracile nasal region in neonates. Furthermore, the study aimed to establish a 3D data set of the first 180 days post partum.MethodsThirty-three healthy, full-term newborn were enrolled and 3D photographs were prospectively taken monthly with a portable low-budget 3D stereophotogrammetry system (FUEL3D® SCANIFY®) for six months. In the third month, age-matched and corresponding 3D models were acquired by taking an impression of the perinasal area. The resulting plaster models were scanned (3Shape D700, 3Shape® A/S, Denmark). Three examiners analyzed independently 21 defined landmarks of the generated Standard Tessellation Language files with regard to accuracy by using 3dMDvultus™ software. A semi-automatic 3D best-fit analysis of 3D photo and plaster models were performed by using Geomagic® and the Root Mean Squared (RMS) errors were calculated.ResultsStatistically significant changes of midfacial distances and angles with a focus on nasal growth during the first 180 days postpartum could be specified in absolute and relative dimensions. Best-fit analysis in the third month revealed a RMS error of 0.72 ± 0.22 mm with a mean standard deviation of 0.71 ± 0.21 mm.ConclusionsThe analyzed portable 3D stereophotogrammetry system is a feasible methodology with good accuracy, even in newborn. A description of the growth as well as the establishment of a 3D data set was performed. Its implementation for basic documentation for example in cleft patients is possible and might reduce the need for impressions and facilitate the communications with parents and the interdisciplinary team.

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Section: Discussioncontrasting

confidence: 99%

The possibilities of a portable low-budget three-dimensional stereophotogrammetry system in neonates: a prospective growth analysis and analysis of accuracy

et al. 2018

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“…On the other hand, the repeatability of most of measurements increased passing from living people to inanimate mannequins, where the influence of head and facial movements is excluded; in this case, no measurement reached a rTEM classification lower than "good", with TEMs up to 5.6 mm for linear distances and 6.3° for angles. These results suggest that the best scenario for using Sense® is one involving either inanimate objects or deceased persons, as already proposed by the scanty literature so far available on this device (Fan et al, 2017;Caplova et al, 2018).…”

Section: A C C E P T E D Accepted Manuscriptsupporting

confidence: 57%

“…At the same time, other 3D image acquisition devices with an affordable price have been produced and made available on the market: an example is provided by the Sense® 3D scanner, a hand-held scanner with a spatial x/y resolution of 0.9 mm and a depth resolution of 1.0 mm at 0.5 m (Fan et al, 2017). It costs approximately 400 euros and can acquire the point cloud of the head in less than 1 minute (Fan et al, 2017).…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

“…In addition, the low-cost Sense® device has not been validated for the livings yet: in fact, to date, only one study has tested its reliability using a mannequin head and one patient acquired in a clinical environment (Fan et al, 2017). Results were reported as promising by the authors; however, no indication at all is given about the reproducibility of facial measurements on real subjects, and specifically on the possible limits due to involuntary head and facial movements.…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

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Validation of a low-cost laser scanner device for the assessment of three-dimensional facial anatomy in living subjects

Gibelli

Pucciarelli

Čaplová

et al. 2018

Journal of Cranio-Maxillofacial Surgery

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The present study compared the reliability of a low-cost laser scanner device to an already-validated stereophotogrammetric instrument. Fifty volunteers underwent duplicate facial scans through laser scanner and stereophotogrammetry. Intra- and inter-instrument reproducibility of linear distances, angles, facial surface area and volume was verified through the Bland-Altman test and calculation of absolute (TEM) and relative (rTEM) technical errors of measurement; rTEM was then classified as follows: <1% excellent; 1-3.9% very good; 4-6.9% good; 7-9.9% moderate; >10% poor. The scans performed through different devices were registered and superimposed to calculate the root mean square (RMS) (point-to-point) distance between the two surfaces. The same protocol was applied to a mannequin head. In inter-instruments comparison, 12/26 measurements showed a "good" rTEM; 5 were "very good". In intra-instrument comparison, most performances worsened, with only 10 of 26 measurements classified as "good" and "very good". All the measurements made on mannequin scans were at least "good", and 14/26 were "very good". Surface area was "very good" only in intra-instrument comparison; conversely, volumes were poorly repeatable for all the comparisons. On average, RMS point-to-point distances were 0.65 mm (inter-devices comparison), 0.56 mm (mannequin scans), 0.42 mm (intra-device comparison). In conclusion, the low-cost laser scan device can be reliably applied to inanimate objects, but does not meet the standards for three-dimensional facial acquisition on living persons.

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“…This residual error will accumulate in multiple spatial transformations and eventually lead to the increase in positioning errors, which will be evaluated in the experiments section. Although various applications based on the tracked 3D scanner have been proposed (Pheiffer et al, 2012;Fan Y. et al, 2017), 3D scanner calibration in the external coordinate system requires a better solution.…”

Section: Calibrating the 3d Scanner In An External Coordinate Systemmentioning

confidence: 99%

Calibrating 3D Scanner in the Coordinate System of Optical Tracker for Image-To-Patient Registration

Fan

et al. 2021

Front. Neurorobot.

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Three-dimensional scanners have been widely applied in image-guided surgery (IGS) given its potential to solve the image-to-patient registration problem. How to perform a reliable calibration between a 3D scanner and an external tracker is especially important for these applications. This study proposes a novel method for calibrating the extrinsic parameters of a 3D scanner in the coordinate system of an optical tracker. We bound an optical marker to a 3D scanner and designed a specified 3D benchmark for calibration. We then proposed a two-step calibration method based on the pointset registration technique and nonlinear optimization algorithm to obtain the extrinsic matrix of the 3D scanner. We applied repeat scan registration error (RSRE) as the cost function in the optimization process. Subsequently, we evaluated the performance of the proposed method on a recaptured verification dataset through RSRE and Chamfer distance (CD). In comparison with the calibration method based on 2D checkerboard, the proposed method achieved a lower RSRE (1.73 mm vs. 2.10, 1.94, and 1.83 mm) and CD (2.83 mm vs. 3.98, 3.46, and 3.17 mm). We also constructed a surgical navigation system to further explore the application of the tracked 3D scanner in image-to-patient registration. We conducted a phantom study to verify the accuracy of the proposed method and analyze the relationship between the calibration accuracy and the target registration error (TRE). The proposed scanner-based image-to-patient registration method was also compared with the fiducial-based method, and TRE and operation time (OT) were used to evaluate the registration results. The proposed registration method achieved an improved registration efficiency (50.72 ± 6.04 vs. 212.97 ± 15.91 s in the head phantom study). Although the TRE of the proposed registration method met the clinical requirements, its accuracy was lower than that of the fiducial-based registration method (1.79 ± 0.17 mm vs. 0.92 ± 0.16 mm in the head phantom study). We summarized and analyzed the limitations of the scanner-based image-to-patient registration method and discussed its possible development.

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A Surface-Based Spatial Registration Method Based on Sense Three-Dimensional Scanner

Abstract: It is feasible to use the Sense 3D scanner for patient-to-image registration, and the low-cost Sense 3D scanner can take the place of the current used scanner in the image-guided neurosurgery system.

Cited by 20 publications

References 16 publications

The possibilities of a portable low-budget three-dimensional stereophotogrammetry system in neonates: a prospective growth analysis and analysis of accuracy

The possibilities of a portable low-budget three-dimensional stereophotogrammetry system in neonates: a prospective growth analysis and analysis of accuracy

Validation of a low-cost laser scanner device for the assessment of three-dimensional facial anatomy in living subjects

Calibrating 3D Scanner in the Coordinate System of Optical Tracker for Image-To-Patient Registration

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