1936/01/01 by H. G. Fourcade · 1 citation
Engineering · Mathematics · #Infrared Target Detection Methodologies #Satellite Image Processing and Photogrammetry #Advanced Measurement and Detection Methods #Rectification #Tilt (camera) #Distortion (music) #Computation #Optics #Image rectification #Computer vision #Computer science #Mathematics #Physics #Geometry #Algorithm
paper · doi:10.1179/sre.1936.3.19.272
openalex publication_date 1936/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
The application of the formulae for the rectification of air photographs, with or without change of scale, becomes greatly simplified when the tilt of the photographs is small. Usually this tilt does not exceed 2°, and the rectification may take place in a comparatively simple form of camera and with hardly any computations, since, as will be shown, variations of the camera settings are then accurately linear in relation to the tilt. It will also be shown that in the result the errors due to small differences in the focal length of the air camera lenses, to distortion from the pressure plate, and to average shrinkage of the film, can be automatically eliminated.