Point correspondence over a long sequence of image frames

Qinfen Zheng; Rama Chellappa

doi:10.1117/12.155093

3 September 1993 Point correspondence over a long sequence of image frames

Qinfen Zheng, Rama Chellappa

Author Affiliations +

Proceedings Volume 1956, Sensor Fusion and Aerospace Applications; (1993) https://doi.org/10.1117/12.155093
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

An automatic ego motion compensation based point correspondence algorithm is presented. A basic problem in autonomous navigation and motion estimation is automatically detecting and tracking features over consecutive frames, a challenging problem when the camera motion is significant. In general, feature displacement over consecutive frames can be approximately decomposed into two components: (i) the displacement due to camera motion which can be compensated by image rotation, scaling, and translation; (ii) the displacement due to object motion and/or perspective projection. In this paper, we introduce a two step approach: First, the motion of the camera is estimated using a computational vision based image registration algorithm. Then consecutive frames are transformed to the same coordinate system and the feature correspondence problem is solved as one of tracking moving objects using a still camera. Methods for subpixel accuracy feature matching and tracking are introduced. The approach results in a robust and efficient algorithm. Results on several real image sequences are presented.

Citation Download Citation

Qinfen Zheng and Rama Chellappa "Point correspondence over a long sequence of image frames", Proc. SPIE 1956, Sensor Fusion and Aerospace Applications, (3 September 1993); https://doi.org/10.1117/12.155093

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