COMPARISON OF FILM AND VIDEO TECHNIQUES FOR ESTIMATING 3-DIMENSIONAL COORDINATES WITHIN A LARGE FIELD

被引：20

作者：

ANGULO, RM ^{[1
]}

DAPENA, J ^{[1
]}

机构：

[1] INDIANA UNIV,DEPT KINESIOL,BLOOMINGTON,IN 47405

来源：

INTERNATIONAL JOURNAL OF SPORT BIOMECHANICS | 1992年 / 8卷 / 02期

关键词：

D O I：

10.1123/ijsb.8.2.145

中图分类号：

G8 [体育];

学科分类号：

04 [教育学]; 0403 [体育学];

摘要：

This study compared the errors produced with 3-D video and film analysis techniques using the DLT method with fixed cameras when the images cover a wide field of view. The results indicated that with a large field of view (8 meters) the accuracy of video analysis is clearly inferior to that of film analysis. However, within the volume of the control object, both film and video analyses are still precise enough for most practical purposes. Errors were larger in landmarks outside the control object than in the points of the control object. The maximum errors in the calculated positions of external landmarks were particularly large in the video analysis. However, even these rather large errors for points markedly outside the control object may be acceptable. It will depend on the requirements of each particular investigation.

引用

页码：145 / 151

页数：7