Splined trajectory models for geometric correction and fusion

Fergal P. Shevlin

doi:10.1117/12.226853

17 November 1995 Splined trajectory models for geometric correction and fusion

Fergal P. Shevlin

Proceedings Volume 2579, Image and Signal Processing for Remote Sensing II; (1995) https://doi.org/10.1117/12.226853
Event: Satellite Remote Sensing II, 1995, Paris, France

Abstract

Satellite pushbroom scanners deviate from their predetermined positional and rotational trajectories causing geometric distortion in their scanned imagery. Attitude and orbit control systems usually supply sufficient data for the actual trajectory to be reconstructed through splined interpolation. Geometric correction of imagery requires that image pixels be retroprojected onto the scene surface from points along the reconstructed trajectory and the scene subsequently resampled in a regular tessellation. Since this retroprojection can be very computationally expensive, a trajectory model is used which facilitates an efficient iterative subsampling ray-tracing algorithm. Actual SPOT satellite trajectory data is used for demonstration purposes.

Citation Download Citation

Fergal P. Shevlin "Splined trajectory models for geometric correction and fusion", Proc. SPIE 2579, Image and Signal Processing for Remote Sensing II, (17 November 1995); https://doi.org/10.1117/12.226853

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Image fusion

Satellites

Distortion

Satellite imaging

Scanners

Computer graphics

Control systems

Show All Keywords

Keywords/Phrases

Search In:

Publication Years