TY - JOUR
T1 - Single-shot camera position estimation by crossed grating imaging
AU - Juarez-Salazar, Rigoberto
AU - Gaxiola, Leopoldo N.
AU - Diaz-Ramirez, Victor H.
N1 - Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - A simple method to estimate the position of a camera device with respect to a reference plane is proposed. The method utilizes a crossed grating in the reference plane and exploits the coordinate transformation induced by the perspective projection. If the focal length is available, the position of the camera can be estimated with a single-shot. Otherwise, the focal length can be firstly estimated from few frames captured at different known displacements. The theoretical principles of the proposed method are given and the functionality of the approach is exhibited by correcting perspective-distorted images. The proposed method is computationally efficient and highly appropriate to be used in dynamic measurement systems.
AB - A simple method to estimate the position of a camera device with respect to a reference plane is proposed. The method utilizes a crossed grating in the reference plane and exploits the coordinate transformation induced by the perspective projection. If the focal length is available, the position of the camera can be estimated with a single-shot. Otherwise, the focal length can be firstly estimated from few frames captured at different known displacements. The theoretical principles of the proposed method are given and the functionality of the approach is exhibited by correcting perspective-distorted images. The proposed method is computationally efficient and highly appropriate to be used in dynamic measurement systems.
KW - Camera calibration
KW - Digital image processing
KW - Metrological instrumentation
KW - Perspective correction
KW - Position estimation
UR - http://www.scopus.com/inward/record.url?scp=84983684910&partnerID=8YFLogxK
U2 - 10.1016/j.optcom.2016.08.041
DO - 10.1016/j.optcom.2016.08.041
M3 - Artículo
SN - 0030-4018
VL - 382
SP - 585
EP - 594
JO - Optics Communications
JF - Optics Communications
ER -