Co-alignmnent of Aerial Push-broom Strips using Trajectory Smoothness Constraints
2010 (English)Conference paper (Other academic)
We study the problem of registering a sequence of scan lines (a strip) from an airborne push-broom imager to another sequence partly covering the same area. Such a registration has to compensate for deformations caused by attitude and speed changes in the aircraft. The registration is challenging, as both strips contain such deformations. Our algorithm estimates the 3D rotation of the camera for each scan line, by parametrising it as a linear spline with a number of knots evenly distributed in one of the strips. The rotations are estimated from correspondences between strips of the same area. Once the rotations are known, they can be compensated for, and each line of pixels can be transformed such that ground trace of the two strips are registered with respect to each other.
Place, publisher, year, edition, pages
Swedish Society for automated image analysis , 2010. 63-66 p.
National CategoryComputer Vision and Robotics (Autonomous Systems)
IdentifiersURN: urn:nbn:se:liu:diva-70706OAI: oai:DiVA.org:liu-70706DiVA: diva2:441244
SSBA10, Symposium on Image Analysis 11-12 March, Uppsala