Practical surface patch registration technique

Gulab H. Bhatia; Gregg Fiehler; Kirk E. Smith; Paul K. Commean; Michael W. Vannier M.D.

doi:10.1117/12.189048

6 October 1994 Practical surface patch registration technique

Gulab H. Bhatia, Gregg Fiehler, Kirk E. Smith, Paul K. Commean, Michael W. Vannier M.D.

Proceedings Volume 2355, Sensor Fusion VII; (1994) https://doi.org/10.1117/12.189048
Event: Photonics for Industrial Applications, 1994, Boston, MA, United States

Abstract

A method for spatial registration of 3D surfaces was developed for range data acquired by a multi-sensor optical surface scanner. Registration of 3D shapes is important for change detection and inspection. The requirement for an automatic and robust registration method stems from the need to compare digitized human anatomy surfaces obtained over extended periods of time. A typical example is comparison of pre-operative, post-operative, and recovered facial morphology of a face-lift patient. An iterative algorithm that handles six degrees of freedom (three rotations, and three translations) and does not require point to point correspondence of surfaces was developed. The method assumes that the surfaces are in near registration, otherwise, with surfaces having spherical symmetry, many iterations may be required before a successful outcome is achieved. Coarse registration can be obtained by visual transformations or by use of a principal axis transformation. First, points are identified on the second surface that lie on surface normals of points on the first surface. A divide and conquer technique is used to accelerate this process. Any points on the first surface that do not yield points on the second surface are ignored. The two sets of corresponding points (one set on each surface patch) is used in a least squares estimation scheme to minimize their distance. The estimate yields a transformation vector (consisting of rotations and translations) used to resample the second surface patch into a common coordinate system. This iterative process continues until the errors reduce below a set threshold or convergence is reached. Error statistics are reported. Testing and validation of the algorithm shows the method is feasible and efficient.

Citation Download Citation

Gulab H. Bhatia, Gregg Fiehler, Kirk E. Smith, Paul K. Commean, and Michael W. Vannier M.D. "Practical surface patch registration technique", Proc. SPIE 2355, Sensor Fusion VII, (6 October 1994); https://doi.org/10.1117/12.189048

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