EVALUATION OF A CCD-BASED FACIAL MEASUREMENT SYSTEM

被引：18

作者：

DEACON, AT

ANTHONY, AG

BHATIA, SN

MULLER, JP

机构：

[1] Thorn EMI Research, Hayes, Middlesex

[2] King's College School of Medicine and Dentistry, London

[3] Department of Photogrammetry and Surveying, University College, London

来源：

MEDICAL INFORMATICS | 1991年 / 16卷 / 02期

关键词：

BIOSTEREOMETRICS; SOFT-TISSUE MORPHOLOGY; 3; DIMENSIONS; PHOTOGRAMMETRY;

D O I：

10.3109/14639239109012128

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper describes the configuration and evaluation of a CCD-based biostereometric system at the Department of Orthodontics, Kings College Dental Hospital, London. The system has been designed to allow rapid and accurate measurement of facial soft-tissue shape with a minimum of traditional photogrammetric training. This has been achieved by automatic camera calibration and stereo matching, performed on a Sun Microsystem 3/160 workstation. In summary, the characteristics of the system are: (a) non-contact three-dimensional (3D) measurement of soft-tissue; (b) de-skilled, requiring little or no photogrammetric training; (c) rapid data acquisition, combined with slower off-line processing; (d) processing of resulting 3D surface information to yield cross-sections; (e) surface measurement accurate to within 0.5 mm. Accuracy assessment was performed using a manual electromechanical non-contact measurement device with precision exceeding the requirement of the biostereometric system.

引用

页码：213 / 228

页数：16

共 22 条

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