Dr. Rao Zhang Profile

Dr. Rao Zhang

at Tianjin Univ

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 8 July 2022 Paper

Calibration and measurement space inconsistency analysis for workshop measurement positioning system (wMPS)

Rao Zhang, Shendong Shi, Jiarui Lin, Shuo Yang, Linghui Yang

Proceedings Volume 12282, 122820K (2022) https://doi.org/10.1117/12.2612132

KEYWORDS: Calibration, Measurement devices, Precision measurement

Read Abstract +

This paper discusses the measurement precision loss problem introduced by the inconsistent between measurement space and calibration space and presents a hybrid calibration method to solve this problem. The proposed method establishes the hybrid adjustment model based on the ray intersection constraint, ruler length constraint, and sparse control points' rescan constraint. The Levenberg-Marquardt algorithm is employed to solve the objective function. The initial value is calculated in two steps, in which the ruler length constraint is used to calculate the relationship between each transmitter, and the global coordinate system's transformation parameter is calculated by space intersection. In addition, the part of the adjustment objective function introduced by the ray intersection constraint is extended by considering the ray intersection constraint of the measured point. About 78% improvement in measurement accuracy is achieved compared with the traditional way.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

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

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years