Analysis of depth of field of stereoscopic cameras in lens-tilt configurations

Naoki Kaneko; Shiro Suyama; Hirotsugu Yamamoto

doi:10.1117/12.839581

17 February 2010 Analysis of depth of field of stereoscopic cameras in lens-tilt configurations

Naoki Kaneko, Shiro Suyama, Hirotsugu Yamamoto

Proceedings Volume 7524, Stereoscopic Displays and Applications XXI; 75241I (2010) https://doi.org/10.1117/12.839581
Event: IS&T/SPIE Electronic Imaging, 2010, San Jose, California, United States

Abstract

Live three-dimensional movies are acquired with stereoscopic cameras. Since there is a limitation of disparity for binocular fusion, it is necessary to restrict objects of shooting within an allowable range. This problem is more severe for stereoscopic LED display because of its large pitch. One of the answers to this problem is to control the depth of field. Objects outside the allowable range are blurred and objects inside the allowable range are in focus. In this study, we propose a method to control the depth of field of stereoscopic images continuously by lens-tilt imaging. There are two types of configurations in the lens-tilt stereoscopic imaging. One is a convergent configuration and the other is a divergent configuration. We analyze the relationships between the lens-tilt angle, the ratio of the lens-to-imaging device distance to focal length, and the plane-of-sharp-focus angle. Then the near and far limits of the depth of field of stereoscopic cameras in lens-tilt configurations are formulated geometrically. It is revealed that the depth of field in the divergent configuration is larger than that in the convergent configuration even if the distance between the two lenses is the same. The analyses and continuous control of the depth of field are also confirmed experimentally.

Citation Download Citation

Naoki Kaneko, Shiro Suyama, and Hirotsugu Yamamoto "Analysis of depth of field of stereoscopic cameras in lens-tilt configurations", Proc. SPIE 7524, Stereoscopic Displays and Applications XXI, 75241I (17 February 2010); https://doi.org/10.1117/12.839581

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available