Switch to
| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
5
|
| pubmed:dateCreated |
1992-6-19
|
| pubmed:abstractText |
This study was intended to develop a three-dimensional measuring system of the human face for clinical use, to ensure a high precision and a simple input operation by means of a personal computer and to measure the degree of its accuracy. With this system, it is possible to measure automatically two-dimensional coordinates of hundreds of grid points on photographs of the human face with an image scanner as a reading device and to calculate their three-dimensional coordinates with a computer. An orthognathic surgical case illustrates this technique in which the patient's face is displayed before and after the surgery on a cathode-ray tube (CRT), with the three-dimensional coordinates obtained with this system. A cubic plaster cast with a certain degree of irregularity has been constructed to measure the precision of this system. Comparison was then made between the three-dimensional coordinates obtained with this system and the coordinates obtained with the contact three-dimensional measuring system. The mean of errors and the standard deviation were 0.04 +/- 0.24 mm for the X coordinate, 0.03 +/- 0.16 mm for the Y coordinate, and 0.08 +/- 0.23 mm for the Z coordinate. Thus the accuracy of this system is high enough for the measurement of the human face.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
D
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
May
|
| pubmed:issn |
0889-5406
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
101
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
431-40
|
| pubmed:dateRevised |
2004-11-17
|
| pubmed:meshHeading |
pubmed-meshheading:1590292-Cephalometry,
pubmed-meshheading:1590292-Computer Systems,
pubmed-meshheading:1590292-Data Display,
pubmed-meshheading:1590292-Face,
pubmed-meshheading:1590292-Humans,
pubmed-meshheading:1590292-Image Processing, Computer-Assisted,
pubmed-meshheading:1590292-Photography,
pubmed-meshheading:1590292-Signal Processing, Computer-Assisted
|
| pubmed:year |
1992
|
| pubmed:articleTitle |
A three-dimensional measuring system for the human face using three-directional photography.
|
| pubmed:affiliation |
Department of Orthodontics, Nihon University School of Dentistry, Tokyo, Japan.
|
| pubmed:publicationType |
Journal Article
|