کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10359298 | 869130 | 2005 | 38 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Focal length calibration from two views: method and analysis of singular cases
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Focal length calibration from two views: method and analysis of singular cases Focal length calibration from two views: method and analysis of singular cases](/preview/png/10359298.png)
چکیده انگلیسی
We consider the problem of estimating the focal length of a camera from two views while the focal length is not varied during the motion of the camera. An approach based on Kruppa's equations is proposed. Specifically, we derive two linear and one quadratic equations to solve the problem. Although the three equations are interdependent in general, each one may be singular for different configurations. We study in detail the generic singularities of the problem and the actual singularities of the individual calibration equations. Results of our experiments using synthetic and real data underline the effect that singular configurations may have on self-calibration. However, these results are stable once the singularities are avoided.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Vision and Image Understanding - Volume 99, Issue 1, July 2005, Pages 58-95
Journal: Computer Vision and Image Understanding - Volume 99, Issue 1, July 2005, Pages 58-95
نویسندگان
P. Sturm, Z.L. Cheng, P.C.Y. Chen, A.N. Poo,