Research On the Standard Operation Procedure of Mobile 3D Scanner

Abstract

1. Abstract 1.1. Background: For the past few years, 3D facial imaging technology has been widely used as preoperative evaluation and surgery design for plastic and cosmetic surgery. Compare to the stationary scanner, handheld scanner is more portable and mobile, which leads to a higher demand for the operator manipulation. The aim of this study is to search and improve the standardized procedure of handheld 3D scanner, in order to collect preferable data and improve treatment accuracy. 1.2. Methods: Artec Eva 3D scanner was used to scan the subject head-face area. By altering the distance and angle between the scanner and subject, changing the scanner movement patterns and tracks, and modifying the light and background, multiple images were collected and analysed. By comparing the differences between generated images and the amount of software errors, the best operation procedure for mobile 3D scanner was concluded. 1.3. Results: With adequate light, the optimal distance between scanner and subject (working distance) was 80cm, and the scanner was 5cm above the subject head. The scanner was stabilized on a tripod with wheels and scans following an arc track. The optimal scanning time was 8s, which was easy to control and could keep the integrity of collected images at the same time. 1.4. Conclusion: By the comparative study of light, background, distance, angle and scanner movement pattern, we found that handheld scanner with standardized operation procedure can stable the scanning results and improve the collection efficiency and accuracy. 2. Keywords: Accurate Treatment Method; Facial Scanning; Mobile 3D Scanner; Standardized Operation