Lexisearch for Modeling Pushbroom Imaging Systems

The present study aims at exploiting lexicographic search(lexi-search in short) technique for modeling push broom imaging systems on board a spacecraft. Conventional techniques use a full force rigorous orbital photogrammetric model adopting iterative least squares techniques with partial derivatives of adjustment equations involving Taylor's series approximation. The proposed lexi-search technique is presented to overcome the general objection of handling rational polynomials with least square theory. The study illustrates this is excellent alternative to many bundled adjustment processes in use for camera calibration, geometric rectification, and 3D rendering.