Related Experiment Video
Updated: Jan 30, 2026
06:17
Augmented Reality Navigation-Guided Core Decompression for Osteonecrosis of Femoral Head
Published on: April 12, 2022
4.3K
Tracking Accuracy of a Stereo Camera-Based Augmented Reality Navigation System for Orthognathic Surgery
Jaemyung Ahn1, Hyunseok Choi2, Jaesung Hong3
1Clinical Fellow, Department of Oral and Maxillofacial Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Summary
A new stereo camera augmented reality (AR) navigation system shows tracking accuracy comparable to existing infrared optical tracking systems (OTS) for maxillofacial surgery. This AR system offers similar reliability at a lower cost.
Area of Science:
- Medical Imaging
- Surgical Navigation
- Augmented Reality
Background:
- Accurate tracking is essential for augmented reality (AR) in diagnosing and surgically correcting maxillofacial deformities.
- Le Fort I osteotomy involves repositioning the maxilla, requiring precise navigation.
Purpose of the Study:
- To investigate the tracking accuracy of a stereo camera-based AR navigation system for maxillary repositioning.
- To compare its accuracy against an established infrared (IR)-based optical tracking system (OTS).
Main Methods:
- Five maxillary surgery plans were created using a 6-degrees-of-freedom articulator with a target maxillary movement of 5 mm.
- The stereo camera AR navigation system's accuracy was evaluated and compared to a commercial IR-based OTS.
Main Results:
- The IR-based OTS achieved a mean error of 0.0584 mm and 98.83% accuracy.
- The stereo camera AR navigation system demonstrated a mean error of 0.0596 mm and 98.81% accuracy.
Conclusions:
- The developed stereo camera AR navigation system is reliable and accurate for maxillofacial surgery.
- It achieves accuracy comparable to high-cost imported systems but at a significantly lower cost.
- Potential applications include patient communication and clinical training.
More Related Videos
Related Concept Videos
02:07Improving Translational Accuracy
14.9K
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
14.9K
02:07Improving Translational Accuracy
3.7K
3.7K
03:37Uncertainty in Measurement: Accuracy and Precision
100.9K
Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value.
100.9K
01:52Accuracy and Precision
15.2K
Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value. Highly accurate...
15.2K
01:28Accuracy, limits, and approximation
1.3K
Accuracy, limits, and approximations are common in many fields, especially in engineering calculations. These concepts are imperative for ensuring that a given value is as close as possible to its true value.
Accuracy is defined as the closeness of the measured value to the true or actual value. In engineering mechanics, repeated measurements are taken during theoretical or experimental analyses to ensure that the result is precise and accurate.
The accuracy of any solution is based on the...
Accuracy is defined as the closeness of the measured value to the true or actual value. In engineering mechanics, repeated measurements are taken during theoretical or experimental analyses to ensure that the result is precise and accurate.
The accuracy of any solution is based on the...
1.3K
01:13Accuracy and Errors in Hypothesis Testing
596
Hypothesis testing is a fundamental statistical tool that begins with the assumption that the null hypothesis H0 is true. During this process, two types of errors can occur: Type I and Type II. A Type I error refers to the incorrect rejection of a true null hypothesis, while a Type II error involves the failure to reject a false null hypothesis.
In hypothesis testing, the probability of making a Type I error, denoted as α, is commonly set at 0.05. This significance level indicates a 5%...
In hypothesis testing, the probability of making a Type I error, denoted as α, is commonly set at 0.05. This significance level indicates a 5%...
596