Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Optical method to measure the surface of objects by using only one photo

Not Accessible

Your library or personal account may give you access

Abstract

What we believe is a novel method to measure the dimension of an object with one defocused photo of an object is presented in this paper. To do this, a photo of the object is taken by a camera. The focal plane is chosen as a reference plane. The coordinates of the object surface are obtained by using the camera’s parameters and corresponding defocused distance. The depth from the reference plane is obtained by evaluating the confusion degree of the photo around an edge. The relationship between the confusion degree and the distance from the reference plane has been given theoretically and experimentally. Several objects have been measured with the method, and it is shown that the results obtained are reliable. For nontextured surfaces, the edges of objects can be used to make the measurement.

© 2017 Optical Society of America

Full Article  |  PDF Article
More Like This
Method to measure 3D deformation using defocused images of objects with artificial speckle features

Jiong Qian, Qin-Zhi Fang, Qinwei Hu, and Li Jin
Appl. Opt. 57(8) 1807-1816 (2018)

Learning scene and blur model for active chromatic depth from defocus

Benjamin Buat, Pauline Trouvé-Peloux, Frédéric Champagnat, and Guy Le Besnerais
Appl. Opt. 60(31) 9966-9974 (2021)

Passive depth estimation using chromatic aberration and a depth from defocus approach

Pauline Trouvé, Frédéric Champagnat, Guy Le Besnerais, Jacques Sabater, Thierry Avignon, and Jérôme Idier
Appl. Opt. 52(29) 7152-7164 (2013)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (17)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (18)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved