Three-Dimensional Motion Analysis Using Shape Change Information

Tzay Y. Young; Seetharaman Gunasekaran

doi:10.1117/12.964145

26 March 1986 Three-Dimensional Motion Analysis Using Shape Change Information

Tzay Y. Young, Seetharaman Gunasekaran

Proceedings Volume 0635, Applications of Artificial Intelligence III; (1986) https://doi.org/10.1117/12.964145
Event: 1986 Technical Symposium Southeast, 1986, Orlando, United States

Abstract

This paper describes a method that extracts three-dimensional (3D) motion information by analyzing 2D shape changes of object faces in an image sequence. An object image is segmented into regions, each region corresponding to a face of the object. With orthographic projections, 3D rotation angles can be computed from a set of linear shape change parameters. For perspective projections, under certain conditions the effect on shape changes of planar faces can be taken into consideration by including quadratic parameters. Iterative algorithms for estimation of linear and quadratic shape change parameters are derived and implemented, using an operator formulation. 3D translation and rotation parameters are calculated from the shape change parameters. Experimental results on segmentation and parameter estimation are presented.

Citation Download Citation

Tzay Y. Young and Seetharaman Gunasekaran "Three-Dimensional Motion Analysis Using Shape Change Information", Proc. SPIE 0635, Applications of Artificial Intelligence III, (26 March 1986); https://doi.org/10.1117/12.964145

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